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Re: more power from 4.0
noneofyourbusiness wrote:
> DougW: > Side question: Did you have to do anything special to your 4.0L after > supercharging it? I installed a boost-a-pump that increases the fuel pressure to 70 psi and a pressure regulator on the fuel rail that's stonger than stock. > A friend installed a supercharger and is having issues with > knock/ping, but only in 3rd gear under full throttle(?). > (Sorry, don't know the brand at the moment.) If it wasn't there before then suspect dirty fuel filter or clogged injectors. Also poor spark will cause problems. If all else is fine have him try one range cooler on the plugs. And don't use platinum or splitfire as they cary too much heat and can cause detination problems. If it was always there then he needs to retard the timing a bit and increase fuel flow with either larger injectors or a higher pressure pump/regulator. Some systems use a seperate injector. -- DougW |
Re: more power from 4.0
noneofyourbusiness wrote:
> DougW: > Side question: Did you have to do anything special to your 4.0L after > supercharging it? I installed a boost-a-pump that increases the fuel pressure to 70 psi and a pressure regulator on the fuel rail that's stonger than stock. > A friend installed a supercharger and is having issues with > knock/ping, but only in 3rd gear under full throttle(?). > (Sorry, don't know the brand at the moment.) If it wasn't there before then suspect dirty fuel filter or clogged injectors. Also poor spark will cause problems. If all else is fine have him try one range cooler on the plugs. And don't use platinum or splitfire as they cary too much heat and can cause detination problems. If it was always there then he needs to retard the timing a bit and increase fuel flow with either larger injectors or a higher pressure pump/regulator. Some systems use a seperate injector. -- DougW |
Re: more power from 4.0
On Tue, 13 Mar 2007 17:59:30 -0500, "DougW"
<post.replies@invalid.address> wrote: >noneofyourbusiness wrote: > >> DougW: >> Side question: Did you have to do anything special to your 4.0L after >> supercharging it? > >I installed a boost-a-pump that increases the fuel pressure to 70 psi >and a pressure regulator on the fuel rail that's stonger than stock. > >> A friend installed a supercharger and is having issues with >> knock/ping, but only in 3rd gear under full throttle(?). >> (Sorry, don't know the brand at the moment.) > >If it wasn't there before then suspect dirty fuel filter or >clogged injectors. Also poor spark will cause problems. >If all else is fine have him try one range cooler on the plugs. >And don't use platinum or splitfire as they cary too much heat >and can cause detination problems. > >If it was always there then he needs to retard the timing a bit >and increase fuel flow with either larger injectors or a higher >pressure pump/regulator. Some systems use a seperate injector. Thanks, I'll pass the info along. .... |
Re: more power from 4.0
On Tue, 13 Mar 2007 17:59:30 -0500, "DougW"
<post.replies@invalid.address> wrote: >noneofyourbusiness wrote: > >> DougW: >> Side question: Did you have to do anything special to your 4.0L after >> supercharging it? > >I installed a boost-a-pump that increases the fuel pressure to 70 psi >and a pressure regulator on the fuel rail that's stonger than stock. > >> A friend installed a supercharger and is having issues with >> knock/ping, but only in 3rd gear under full throttle(?). >> (Sorry, don't know the brand at the moment.) > >If it wasn't there before then suspect dirty fuel filter or >clogged injectors. Also poor spark will cause problems. >If all else is fine have him try one range cooler on the plugs. >And don't use platinum or splitfire as they cary too much heat >and can cause detination problems. > >If it was always there then he needs to retard the timing a bit >and increase fuel flow with either larger injectors or a higher >pressure pump/regulator. Some systems use a seperate injector. Thanks, I'll pass the info along. .... |
Re: more power from 4.0
On Tue, 13 Mar 2007 17:59:30 -0500, "DougW"
<post.replies@invalid.address> wrote: >noneofyourbusiness wrote: > >> DougW: >> Side question: Did you have to do anything special to your 4.0L after >> supercharging it? > >I installed a boost-a-pump that increases the fuel pressure to 70 psi >and a pressure regulator on the fuel rail that's stonger than stock. > >> A friend installed a supercharger and is having issues with >> knock/ping, but only in 3rd gear under full throttle(?). >> (Sorry, don't know the brand at the moment.) > >If it wasn't there before then suspect dirty fuel filter or >clogged injectors. Also poor spark will cause problems. >If all else is fine have him try one range cooler on the plugs. >And don't use platinum or splitfire as they cary too much heat >and can cause detination problems. > >If it was always there then he needs to retard the timing a bit >and increase fuel flow with either larger injectors or a higher >pressure pump/regulator. Some systems use a seperate injector. Thanks, I'll pass the info along. .... |
Re: more power from 4.0
Tell us about it, with your five thousand dollar supercharger:
http://members.cox.net/wilsond/zj.html God Bless America, Bill 0|||||||0 mailto:-------------------- http://www.----------.com/ "DougW" <post.replies@invalid.address> wrote in message news:__vJh.3636$iC.2369@newsfe22.lga > > spacers are junk, they just move the throttle body and essentially > shorten the throttle cable. You can get the same general effect by > gluing a block of wood to your right shoe. > > Cat-back, headers, a bored-out throttlebody, electric fan rather than > motor driven, that's about it before you realy have to start opening > the ol wallet. Then it's multispark ignition, porting, stroking, and > or blower/supercharger. As they say at Hesco, "Speed costs money, how > fast do you want to go?" :) > > -- > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors > Banks Header - and BEER, in the fridge! > > -- Posted via a free Usenet account from http://www.teranews.com |
Re: more power from 4.0
Tell us about it, with your five thousand dollar supercharger:
http://members.cox.net/wilsond/zj.html God Bless America, Bill 0|||||||0 mailto:-------------------- http://www.----------.com/ "DougW" <post.replies@invalid.address> wrote in message news:__vJh.3636$iC.2369@newsfe22.lga > > spacers are junk, they just move the throttle body and essentially > shorten the throttle cable. You can get the same general effect by > gluing a block of wood to your right shoe. > > Cat-back, headers, a bored-out throttlebody, electric fan rather than > motor driven, that's about it before you realy have to start opening > the ol wallet. Then it's multispark ignition, porting, stroking, and > or blower/supercharger. As they say at Hesco, "Speed costs money, how > fast do you want to go?" :) > > -- > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors > Banks Header - and BEER, in the fridge! > > -- Posted via a free Usenet account from http://www.teranews.com |
Re: more power from 4.0
Tell us about it, with your five thousand dollar supercharger:
http://members.cox.net/wilsond/zj.html God Bless America, Bill 0|||||||0 mailto:-------------------- http://www.----------.com/ "DougW" <post.replies@invalid.address> wrote in message news:__vJh.3636$iC.2369@newsfe22.lga > > spacers are junk, they just move the throttle body and essentially > shorten the throttle cable. You can get the same general effect by > gluing a block of wood to your right shoe. > > Cat-back, headers, a bored-out throttlebody, electric fan rather than > motor driven, that's about it before you realy have to start opening > the ol wallet. Then it's multispark ignition, porting, stroking, and > or blower/supercharger. As they say at Hesco, "Speed costs money, how > fast do you want to go?" :) > > -- > -- DougW -- 93 ZJ 4.0 http://revbeergoggles.com > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors > Banks Header - and BEER, in the fridge! > > -- Posted via a free Usenet account from http://www.teranews.com |
Re: more power from 4.0
noneofyourbusiness wrote:
> > Thanks, I'll pass the info along. Forgot to add one thing. If the engine has excessive carbon builup that will cause pinging. Usually the plugs will show how bad things are. -- DougW |
Re: more power from 4.0
noneofyourbusiness wrote:
> > Thanks, I'll pass the info along. Forgot to add one thing. If the engine has excessive carbon builup that will cause pinging. Usually the plugs will show how bad things are. -- DougW |
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