Red line value for the 4.2L CJ7 engine
02-02-2004, 12:20 PM
#11
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
Mike, are you using the stock Tach or an aftermarket version? I was
thinking about buying a new Autometer Tach in my area but the guy selling it
says that he seems to red line at a little over 3k. He has the same setup
as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
this tach if I can't get a proper reading.
Thanks,
Bill
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
thinking about buying a new Autometer Tach in my area but the guy selling it
says that he seems to red line at a little over 3k. He has the same setup
as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
this tach if I can't get a proper reading.
Thanks,
Bill
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
02-02-2004, 12:20 PM
#12
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
Mike, are you using the stock Tach or an aftermarket version? I was
thinking about buying a new Autometer Tach in my area but the guy selling it
says that he seems to red line at a little over 3k. He has the same setup
as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
this tach if I can't get a proper reading.
Thanks,
Bill
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
thinking about buying a new Autometer Tach in my area but the guy selling it
says that he seems to red line at a little over 3k. He has the same setup
as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
this tach if I can't get a proper reading.
Thanks,
Bill
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
02-02-2004, 12:20 PM
#13
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
Mike, are you using the stock Tach or an aftermarket version? I was
thinking about buying a new Autometer Tach in my area but the guy selling it
says that he seems to red line at a little over 3k. He has the same setup
as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
this tach if I can't get a proper reading.
Thanks,
Bill
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
thinking about buying a new Autometer Tach in my area but the guy selling it
says that he seems to red line at a little over 3k. He has the same setup
as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
this tach if I can't get a proper reading.
Thanks,
Bill
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
02-02-2004, 12:38 PM
#14
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
>>> 85 mph in 4th is only 2700 rpm on mine. <<<< Wow! with a 4500 RPM
redline, that gears out to 141+ MPH. ;-)
I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
fall off the rim of the Grand Canyon.....
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
redline, that gears out to 141+ MPH. ;-)
I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
fall off the rim of the Grand Canyon.....
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
02-02-2004, 12:38 PM
#15
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
>>> 85 mph in 4th is only 2700 rpm on mine. <<<< Wow! with a 4500 RPM
redline, that gears out to 141+ MPH. ;-)
I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
fall off the rim of the Grand Canyon.....
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
redline, that gears out to 141+ MPH. ;-)
I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
fall off the rim of the Grand Canyon.....
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
02-02-2004, 12:38 PM
#16
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
>>> 85 mph in 4th is only 2700 rpm on mine. <<<< Wow! with a 4500 RPM
redline, that gears out to 141+ MPH. ;-)
I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
fall off the rim of the Grand Canyon.....
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
redline, that gears out to 141+ MPH. ;-)
I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
fall off the rim of the Grand Canyon.....
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:401E81F4.72FA2DAE@sympatico.ca...
> No way....
>
> Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
>
> Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> 4th is only 2700 rpm on mine.
>
> I am running the stock BBD carb, an Accel SuperCoil and a straight
> exhaust with a dynomax super turbo muffler.
>
> All manually set up, I killed the computer.
>
> The computer acts like a governor and clamps down on the timing advance
> so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> 'the wall'.
>
> Mike
>
> j carter wrote:
> >
> > And it's gonna be out of breath way before it gets there.
> > (Let's hear it for AMC!)
> >
> > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > news:401E7A69.427232ED@sympatico.ca...
> > > 4500 rpm.
> > >
> > > Mike
> > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > 88 Cherokee 235 BFG AT's
> > >
> > > William Oliveri wrote:
> > > >
> > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > >
> > > > Thanks,
> > > >
> > > > Bill
02-02-2004, 01:09 PM
#17
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
I have the Laredo package with the stock tach and clock.
My tach also matches my tune up tach right on, so it is accurate.
Mike
William Oliveri wrote:
>
> Mike, are you using the stock Tach or an aftermarket version? I was
> thinking about buying a new Autometer Tach in my area but the guy selling it
> says that he seems to red line at a little over 3k. He has the same setup
> as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
> this tach if I can't get a proper reading.
>
> Thanks,
>
> Bill
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
My tach also matches my tune up tach right on, so it is accurate.
Mike
William Oliveri wrote:
>
> Mike, are you using the stock Tach or an aftermarket version? I was
> thinking about buying a new Autometer Tach in my area but the guy selling it
> says that he seems to red line at a little over 3k. He has the same setup
> as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
> this tach if I can't get a proper reading.
>
> Thanks,
>
> Bill
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
02-02-2004, 01:09 PM
#18
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
I have the Laredo package with the stock tach and clock.
My tach also matches my tune up tach right on, so it is accurate.
Mike
William Oliveri wrote:
>
> Mike, are you using the stock Tach or an aftermarket version? I was
> thinking about buying a new Autometer Tach in my area but the guy selling it
> says that he seems to red line at a little over 3k. He has the same setup
> as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
> this tach if I can't get a proper reading.
>
> Thanks,
>
> Bill
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
My tach also matches my tune up tach right on, so it is accurate.
Mike
William Oliveri wrote:
>
> Mike, are you using the stock Tach or an aftermarket version? I was
> thinking about buying a new Autometer Tach in my area but the guy selling it
> says that he seems to red line at a little over 3k. He has the same setup
> as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
> this tach if I can't get a proper reading.
>
> Thanks,
>
> Bill
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
02-02-2004, 01:09 PM
#19
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
I have the Laredo package with the stock tach and clock.
My tach also matches my tune up tach right on, so it is accurate.
Mike
William Oliveri wrote:
>
> Mike, are you using the stock Tach or an aftermarket version? I was
> thinking about buying a new Autometer Tach in my area but the guy selling it
> says that he seems to red line at a little over 3k. He has the same setup
> as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
> this tach if I can't get a proper reading.
>
> Thanks,
>
> Bill
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
My tach also matches my tune up tach right on, so it is accurate.
Mike
William Oliveri wrote:
>
> Mike, are you using the stock Tach or an aftermarket version? I was
> thinking about buying a new Autometer Tach in my area but the guy selling it
> says that he seems to red line at a little over 3k. He has the same setup
> as me, 4.2L engine with the Mopar MPI kit installed. I don't want to buy
> this tach if I can't get a proper reading.
>
> Thanks,
>
> Bill
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
02-02-2004, 01:15 PM
#20
Guest
Posts: n/a
Re: Red line value for the 4.2L CJ7 engine
Ya, but guys, guys, this is in '4TH' gear!!!
I do have 5th gear!
And I did just check it this morning on a highway run out to pick up a
cheque. I had the spedo pinned at 85 and I was just hitting 2700 rpm in
4th.
I have 'tons' of pedal left, it isn't anywhere near the floor at 85 in
4th. I guess I should have dropped it into 5th just to see how low it
revs.
My speedometer is also calibrated right on according to my GPS unit.
Mike
breyfogle wrote:
>
> >>> 85 mph in 4th is only 2700 rpm on mine. <<<< Wow! with a 4500 RPM
> redline, that gears out to 141+ MPH. ;-)
>
> I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
> fall off the rim of the Grand Canyon.....
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
I do have 5th gear!
And I did just check it this morning on a highway run out to pick up a
cheque. I had the spedo pinned at 85 and I was just hitting 2700 rpm in
4th.
I have 'tons' of pedal left, it isn't anywhere near the floor at 85 in
4th. I guess I should have dropped it into 5th just to see how low it
revs.
My speedometer is also calibrated right on according to my GPS unit.
Mike
breyfogle wrote:
>
> >>> 85 mph in 4th is only 2700 rpm on mine. <<<< Wow! with a 4500 RPM
> redline, that gears out to 141+ MPH. ;-)
>
> I doubt my mostly stock '83 would be capable of exceeding 75 MPH in a free
> fall off the rim of the Grand Canyon.....
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:401E81F4.72FA2DAE@sympatico.ca...
> > No way....
> >
> > Mine will pull out to 55 mph at 4500 rpm in 2nd gear easily.
> >
> > Don't know where 3rd tops out at, but it is 'way' up there. 85 mph in
> > 4th is only 2700 rpm on mine.
> >
> > I am running the stock BBD carb, an Accel SuperCoil and a straight
> > exhaust with a dynomax super turbo muffler.
> >
> > All manually set up, I killed the computer.
> >
> > The computer acts like a governor and clamps down on the timing advance
> > so they run out of steam way before 4000 rpm, closer to 3500 and it hits
> > 'the wall'.
> >
> > Mike
> >
> > j carter wrote:
> > >
> > > And it's gonna be out of breath way before it gets there.
> > > (Let's hear it for AMC!)
> > >
> > > "Mike Romain" <romainm@sympatico.ca> wrote in message
> > > news:401E7A69.427232ED@sympatico.ca...
> > > > 4500 rpm.
> > > >
> > > > Mike
> > > > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > > 88 Cherokee 235 BFG AT's
> > > >
> > > > William Oliveri wrote:
> > > > >
> > > > > Does anyone know what the red line value should be on a 4.2L engine?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Bill
