Re: 1999 Grand prix... Looking to run a 3.4 pulley
Don't forget a tune.
Brandon's GP on a 3.4 had all of these and was still only managing 8* timing on the stock tune.
Needless to say it was slow as balls.
I was able to get his to 13* and 1-2* blips of KR mostly at the shift by tuning it while maintaining an AFR of approx 11:1
with ambient temps in the low-mid 50's
High timing will require valvetrain mods or stupid rich AFR. No way around it.
Did a few 0-100 pulls and im pretty confident it will run high 13's-14 flat with a good launch.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Sounds like he needs to pulley up.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
He had a 3.4 and a 3.8, lol.
I could have gotten his 3.8 pulley to 18* dead easy.
But hey......BOOST > TIMING LULZ. ;)
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Quote:
Originally Posted by
Nixon
But hey......BOOST > TIMING LULZ. ;)
IKNOWrite?
Way to go, Brandisil.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
the sped is strong in here fosho.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
I need a better damn tune and this thread reminded me of that one e canned helps but its just not the same warm feeling
Re: 1999 Grand prix... Looking to run a 3.4 pulley
thanks for the input guys really helps.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Sorry for intruding, but what do yuo guys mean when you say tune it?
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Quote:
Originally Posted by
JDrach
Sorry for intruding, but what do yuo guys mean when you say tune it?
LINK IN MY SIGNATURE.
X_x
****.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Ohhh so when you guys were talkin about tune, you were talking about the PCM?
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Ask brandon what happens when you try to run a 3.4 pulley on a stock tune with ONLY headers.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
car go boom boom? lol what is needed in order to run a 3.4 pully?
Re: 1999 Grand prix... Looking to run a 3.4 pulley
car is as slow as on stock pulley is what happens.
at minimum a tune, headers, intake.....and you wont be running very much timing without dumping a **** ton of fuel to compensate.
i'd say add rockers/springs to the list and you will have a solid 250whp setup.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
lowering pulley gives you alot worse gas mileage? or only worse when you stomp on the pedal?
Re: 1999 Grand prix... Looking to run a 3.4 pulley
worse when stomping on the pedal.
Re: 1999 Grand prix... Looking to run a 3.4 pulley
Ok i think a lower pulley would be alright since i only stomp on the gas in dire situations or when punks are about :) Which is rare ever since i got my gtp :(
Re: 1999 Grand prix... Looking to run a 3.4 pulley
yeah. gas mileage shouldn't go down with a proper tune.
Re: 1999 Grand prix... Looking to run a 3.4 pulley