I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
looking to put a msd box on it. the jeep has a rebuilt motor with a cam that
lowers max hp down to 2800 rpms, all the emissions removed, and the weber
carb. should I go with a msd 6t or the offroad box. I will be street driving
it mostly and be doing some off roading but nothing where I will be sinking
it in mud up to the doors or driving off cliffs. carmine

 

"Jet" <jet@bestweb.net> wrote in message
news:vq3ls9toj3hmdd@corp.supernews.com...
> I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> looking to put a msd box on it. the jeep has a rebuilt motor with a cam
that
> lowers max hp down to 2800 rpms, all the emissions removed, and the weber
> carb. should I go with a msd 6t or the offroad box. I will be street
driving
> it mostly and be doing some off roading but nothing where I will be
sinking
> it in mud up to the doors or driving off cliffs. carmine
>
>

In all honesty, you really only need the MSD5 for the RPM range you are
running. All of the boxes work exactly the same below 6000 RPM anyway. One
of the things that MSD adds to the circle track and off road kits are simply
4 little rubber washers that go between the ignition box and the mounting
surface. You can add this to the MSD5 as well. For your best advice though,
I would call them to see which one they recommend, and why. I think with
your application the MSD5 would serve just fine. There are many of the 5
model installed on casual off road vehicles.

Chris

 

"Jet" <jet@bestweb.net> wrote in message
news:vq3ls9toj3hmdd@corp.supernews.com...
> I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> looking to put a msd box on it. the jeep has a rebuilt motor with a cam
that
> lowers max hp down to 2800 rpms, all the emissions removed, and the weber
> carb. should I go with a msd 6t or the offroad box. I will be street
driving
> it mostly and be doing some off roading but nothing where I will be
sinking
> it in mud up to the doors or driving off cliffs. carmine
>
>

In all honesty, you really only need the MSD5 for the RPM range you are
running. All of the boxes work exactly the same below 6000 RPM anyway. One
of the things that MSD adds to the circle track and off road kits are simply
4 little rubber washers that go between the ignition box and the mounting
surface. You can add this to the MSD5 as well. For your best advice though,
I would call them to see which one they recommend, and why. I think with
your application the MSD5 would serve just fine. There are many of the 5
model installed on casual off road vehicles.

Chris

 

"Jet" <jet@bestweb.net> wrote in message
news:vq3ls9toj3hmdd@corp.supernews.com...
> I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> looking to put a msd box on it. the jeep has a rebuilt motor with a cam
that
> lowers max hp down to 2800 rpms, all the emissions removed, and the weber
> carb. should I go with a msd 6t or the offroad box. I will be street
driving
> it mostly and be doing some off roading but nothing where I will be
sinking
> it in mud up to the doors or driving off cliffs. carmine
>
>

In all honesty, you really only need the MSD5 for the RPM range you are
running. All of the boxes work exactly the same below 6000 RPM anyway. One
of the things that MSD adds to the circle track and off road kits are simply
4 little rubber washers that go between the ignition box and the mounting
surface. You can add this to the MSD5 as well. For your best advice though,
I would call them to see which one they recommend, and why. I think with
your application the MSD5 would serve just fine. There are many of the 5
model installed on casual off road vehicles.

Chris

 

Hi Carmine,
What's wrong with a Chevy distributor?
http://www.geocities.com/jeeperaz/hei.htm
I'm curious, can you tell me what your cam specs are?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jet wrote:
>
> I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> looking to put a msd box on it. the jeep has a rebuilt motor with a cam that
> lowers max hp down to 2800 rpms, all the emissions removed, and the weber
> carb. should I go with a msd 6t or the offroad box. I will be street driving
> it mostly and be doing some off roading but nothing where I will be sinking
> it in mud up to the doors or driving off cliffs. carmine

 

Hi Carmine,
What's wrong with a Chevy distributor?
http://www.geocities.com/jeeperaz/hei.htm
I'm curious, can you tell me what your cam specs are?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jet wrote:
>
> I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> looking to put a msd box on it. the jeep has a rebuilt motor with a cam that
> lowers max hp down to 2800 rpms, all the emissions removed, and the weber
> carb. should I go with a msd 6t or the offroad box. I will be street driving
> it mostly and be doing some off roading but nothing where I will be sinking
> it in mud up to the doors or driving off cliffs. carmine

 

Hi Carmine,
What's wrong with a Chevy distributor?
http://www.geocities.com/jeeperaz/hei.htm
I'm curious, can you tell me what your cam specs are?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Jet wrote:
>
> I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> looking to put a msd box on it. the jeep has a rebuilt motor with a cam that
> lowers max hp down to 2800 rpms, all the emissions removed, and the weber
> carb. should I go with a msd 6t or the offroad box. I will be street driving
> it mostly and be doing some off roading but nothing where I will be sinking
> it in mud up to the doors or driving off cliffs. carmine

 

Hey, before you jump on an "MSD box", consider replacing your ignition
system with an integrated distributor, like the DUI. After becoming totally
exasperated with the Prestolite distributor/module on my '76 CJ5 resto
project I installed a DUI from 4wd Hdw and the thing runs like a top.
Everything is integrated into the distributor, all you do is hook up the +
wire from the ign sw.

FWIW, I've also installed a K551 Weber kit on this Jeep (232), using a 2
barrel manifold from a 258. It simply runs like a top now, rather than
sputtering, wheezing, stalling, choke sticking, etc. I've had it to 12k ft
elevation on our passes around here and it never misses a beat. Fuel mileage
averages around 18.


"c" <c@me.org> wrote in message
news:Owmob.90667$832.6820@twister.rdc-kc.rr.com...
>
> "Jet" <jet@bestweb.net> wrote in message
> news:vq3ls9toj3hmdd@corp.supernews.com...
> > I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> > looking to put a msd box on it. the jeep has a rebuilt motor with a cam
> that
> > lowers max hp down to 2800 rpms, all the emissions removed, and the
weber
> > carb. should I go with a msd 6t or the offroad box. I will be street
> driving
> > it mostly and be doing some off roading but nothing where I will be
> sinking
> > it in mud up to the doors or driving off cliffs. carmine
> >
> >
>
> In all honesty, you really only need the MSD5 for the RPM range you are
> running. All of the boxes work exactly the same below 6000 RPM anyway. One
> of the things that MSD adds to the circle track and off road kits are
simply
> 4 little rubber washers that go between the ignition box and the mounting
> surface. You can add this to the MSD5 as well. For your best advice
though,
> I would call them to see which one they recommend, and why. I think with
> your application the MSD5 would serve just fine. There are many of the 5
> model installed on casual off road vehicles.
>
> Chris
>
>

 

Hey, before you jump on an "MSD box", consider replacing your ignition
system with an integrated distributor, like the DUI. After becoming totally
exasperated with the Prestolite distributor/module on my '76 CJ5 resto
project I installed a DUI from 4wd Hdw and the thing runs like a top.
Everything is integrated into the distributor, all you do is hook up the +
wire from the ign sw.

FWIW, I've also installed a K551 Weber kit on this Jeep (232), using a 2
barrel manifold from a 258. It simply runs like a top now, rather than
sputtering, wheezing, stalling, choke sticking, etc. I've had it to 12k ft
elevation on our passes around here and it never misses a beat. Fuel mileage
averages around 18.


"c" <c@me.org> wrote in message
news:Owmob.90667$832.6820@twister.rdc-kc.rr.com...
>
> "Jet" <jet@bestweb.net> wrote in message
> news:vq3ls9toj3hmdd@corp.supernews.com...
> > I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> > looking to put a msd box on it. the jeep has a rebuilt motor with a cam
> that
> > lowers max hp down to 2800 rpms, all the emissions removed, and the
weber
> > carb. should I go with a msd 6t or the offroad box. I will be street
> driving
> > it mostly and be doing some off roading but nothing where I will be
> sinking
> > it in mud up to the doors or driving off cliffs. carmine
> >
> >
>
> In all honesty, you really only need the MSD5 for the RPM range you are
> running. All of the boxes work exactly the same below 6000 RPM anyway. One
> of the things that MSD adds to the circle track and off road kits are
simply
> 4 little rubber washers that go between the ignition box and the mounting
> surface. You can add this to the MSD5 as well. For your best advice
though,
> I would call them to see which one they recommend, and why. I think with
> your application the MSD5 would serve just fine. There are many of the 5
> model installed on casual off road vehicles.
>
> Chris
>
>

 

Hey, before you jump on an "MSD box", consider replacing your ignition
system with an integrated distributor, like the DUI. After becoming totally
exasperated with the Prestolite distributor/module on my '76 CJ5 resto
project I installed a DUI from 4wd Hdw and the thing runs like a top.
Everything is integrated into the distributor, all you do is hook up the +
wire from the ign sw.

FWIW, I've also installed a K551 Weber kit on this Jeep (232), using a 2
barrel manifold from a 258. It simply runs like a top now, rather than
sputtering, wheezing, stalling, choke sticking, etc. I've had it to 12k ft
elevation on our passes around here and it never misses a beat. Fuel mileage
averages around 18.


"c" <c@me.org> wrote in message
news:Owmob.90667$832.6820@twister.rdc-kc.rr.com...
>
> "Jet" <jet@bestweb.net> wrote in message
> news:vq3ls9toj3hmdd@corp.supernews.com...
> > I just installed a Weber k-551 carb on my 86 cj7 with a 258 and now I am
> > looking to put a msd box on it. the jeep has a rebuilt motor with a cam
> that
> > lowers max hp down to 2800 rpms, all the emissions removed, and the
weber
> > carb. should I go with a msd 6t or the offroad box. I will be street
> driving
> > it mostly and be doing some off roading but nothing where I will be
> sinking
> > it in mud up to the doors or driving off cliffs. carmine
> >
> >
>
> In all honesty, you really only need the MSD5 for the RPM range you are
> running. All of the boxes work exactly the same below 6000 RPM anyway. One
> of the things that MSD adds to the circle track and off road kits are
simply
> 4 little rubber washers that go between the ignition box and the mounting
> surface. You can add this to the MSD5 as well. For your best advice
though,
> I would call them to see which one they recommend, and why. I think with
> your application the MSD5 would serve just fine. There are many of the 5
> model installed on casual off road vehicles.
>
> Chris
>
>