Want to up the BOOST?!?

[Dvdap]

Those come with a gap of .44 but people say to gap them at.28-.32...

 

[thecrash91]

so regap them...

 

[Alamo1]

I'm not seeing how you're going to know wether your car is at 200WHP or not unless you pony up for some dyno cash. I don't think an increase of a few bolt ons and a 2psi bump is going to take you from 170 at the crank to 200 at the wheels. Considering that your drivetrain may lose up to 15% of your rated crank HP and the rule of thumb is that one psi of boost will net roughly 10hp where does that get you? I've looked at all of this with my own car and can say that I'm definitely not at the 200WHP mark with 8-9psi of boost. With 8 psi you might hit 160-170 at the wheels.

Not trying to burst your bubble or put you off of modding your car cuz I have the bug too. Once you start you cant stop. I agree with all of the other posts though, get a wideband and something to tune with. You should also look into oiling upgrades. Lots of threads around with people spinning crank bearings, and blowing motors. Doc B is the way to go if you want longevity.

 

[tweety2300]

I'm not seeing how you're going to know wether your car is at 200WHP or not unless you pony up for some dyno cash. I don't think an increase of a few bolt ons and a 2psi bump is going to take you from 170 at the crank to 200 at the wheels. Considering that your drivetrain may lose up to 15% of your rated crank HP and the rule of thumb is that one psi of boost will net roughly 10hp where does that get you? I've looked at all of this with my own car and can say that I'm definitely not at the 200WHP mark with 8-9psi of boost. With 8 psi you might hit 160-170 at the wheels.

Not trying to burst your bubble or put you off of modding your car cuz I have the bug too. Once you start you cant stop. I agree with all of the other posts though, get a wideband and something to tune with. You should also look into oiling upgrades. Lots of threads around with people spinning crank bearings, and blowing motors. Doc B is the way to go if you want longevity.

Not sure where you're getting your info but def not seeing 10whp per 1 psi on a t25. There are several people on this forum making 200-225 on stock turbo at 8-10 psi. It's not the bolt ons he making the power from its the tune. Pretty sure there's a dyno on here making 180-200 all stock with just tuning, pretty sure it was a stand alone though

 

[Dvdap]

I understand how to gap them...I was wondering why, the benefits of it.

This might sound weird but I look for dyno pulls of msp's on YouTube and see what they have done and where they are whp wise. They usually have the same thing I currently have plus 3" exhaust and tune, sometimes a few pounds over stock boost. It seems very ubtainable.

 

[tweety2300]

Because more air is going in faster, too much of a gap and it will literally blow out the spark when the plug ignites causing a miss fire