cheftjpeck

IMO and what I have read as long as I keep my RWHP under 500 I will be okay...unless I am beating the snot out of her every day....then maybe not...as far as internals....the only internals I will change before going all this is my Torque converter then a solid driveshaft...then I will add LCA, panhard bar and lower springs(rear only) just so I can get that power to the ground.....the pulley will probably fall after all that or the same time...maybe fuel pump as well.....thats what I am trying to contemplate...as a TC will run me over 800, the drive shaft around 500.....then new pulley and belt 179....(cheapest of all the mods) then if I NEED a fuel pump that can be another $650-700+++++//......but I dont want to be cheap and cause my car to be a time bomb...remember these things run lean with 500++hp going through them and they go KABOOM....thats why its important to build it right and be warned...its addictive....

hotairgypsy

do you think your going to have to upgrade your 39lb injectors due to the gain in pressure? what is the largest you can go with just for potential upgrade...hummm

drbobvs

I'm not so sure about the stock pump yet. It seems these cars are very different from one another. With my 3.6 pulley, I'm just touching an A/F of 12.0 at 6,000rpm. When I get to JDM next month, if I'm not over 420 rwhp I'll ask for a pulley swap. Just hoping they can keep me from running lean with that. LT's my make your situation worse too.

cheftjpeck

yeah.....LTs do....but they help in the torque....my torque curve is pretty,,,,mainly due to the LTs...

cheftjpeck

as far as my A/F it stayed at 11.5 all the way through....very flat.....even with the LT... i have read a few who have the 3.4 with stock fuel pump no issue...I keep going back and forth on it though

drbobvs

Hmm, considering ARH w/ catted X, I probably should have em with me when I get to JDM.

I guess it's best to get Justin to do a pulley swap while on the dyno, and you really don't need a new belt.

1) The tensioner should have more then enough travel in it to accomodate the .2" smaller pulley.
2) If not, you can easily, and preferably put back the stock idler pulley in place of the plastic Saleen one or...
3) Replace the stock alternator pulley in place of the Saleen one.

Both of the OEM pulleys are a little larger and will compensate for any slack. I'm stll running the stock Saleen belt with the 3.6" pulley and no slippage issues. The belt that JDM gives you "for the 3.6" is only 1/4" shorter in length.

-Rob

cheftjpeck

I will probably wait until summers over....want to get my other suspension items taken care of....pulley is cheap anyhow....

cheftjpeck

but then again...patience is a virtue I lack