I want to change out my 07 SC's pully to get more boost. Does anyone know how much boost/HP i can safely add without any issues? Is the HP enough to validate voiding the warranty.
I want to change out my 07 SC's pully to get more boost. Does anyone know how much boost/HP i can safely add without any issues? Is the HP enough to validate voiding the warranty.
Thumbnail Image
I'd say wait until the warranty is up before you mod the pulley. You can only go so far without forging the bottom end....and by that point you might as well do a couple things all at the same time.
I agree. Without forged internals, you're better off leaving it like it is. Which is not bad in the first place! You can mess with the tune, etc.. but a pully swap will take you into 500+ territory, and I don't think you can get there (for long) without forged internals.
Seems like plenty have popped at 10psi and up. Of course there are some that are running that high and are OK, BUT on my vehicle I wouldn't go past 9psi on the stock bottom.
I'm planning on running 10 psi and about 486 rwhp on my stock motor. Is that pushing it too much? I was told that 486 rwhp will be fine for a while but ANY more than that the engine cant take. But from reading this topic, it looks like I can't run @ 10 psi or go past 450 rwhp?
JDM can probably put you at 12 psi and around 460-480RWHP on the stock block that should be mostley safe. I wouldnt recommend going that high with any other tune other than JDMs though.
_____________________________
Jared Chavez Eastern Regional Representative - Saleen SpeedLab 04 Saleen S281 #381 Saleen Series IV S/C, Saleen 2.875 Pulley, 05 Fuel Pump, Saleen 14" Brake Kit, JDM Air Kit, JDM 90mm MAS Air, 42 lb Injectors, Optima Red Top, Custom JDM Tune
Well I'm having a custom tune made. The shop that I get my work done at is probably one of the best places in central Ohio for mustang performance... I just want to make sure 10 psi and 486 rwhp won't blow my engine
In my opinion.....it is hit or miss!!!! Some people get away with making good power and others don't. One thing I always tell my customers....... For a true street driven car, don't get caught up in the HP # game that everybody does. First and foremost, when you get up to these #s....475-500 rwhp, its on the ragged edge. I do not care what anyone says...it is!! You never know when you may get a bad tank of gas, intercooler timer goes out (no coolant flowing through the intercooler, etc. BOOM. This is just my personal opinion. I would rather be down 20 - 40 HP and know I can hammer on it with no problem.....true reliable street car. Now, of course, if you have good internals..more abuse it can take. I can say that the ratio of our forged rotating kits sold to S197 guys is 3 to 1..... 3 being guys that blew up the stock bottom and and the 1 is the smart one doing it Before it blows!
Thanks all for the suggestions. I think i am going to have a custom tune put on it, but leave the pully off for now. From what i am hearing i think that it is just not worth the risk right now.
Any suggestion on what upgrades i can safely place on my car that will increase performance? How about gear options?