Correction, thank you.

 

Lol, ok, we have established that you can run an AP2 up to 9k, but im still looking for and answer to my question???

Ok, a supercharger creates more power the higher the RPM right? so in theory an AP1 would preform before better given the same or close to the same supercharger/mods.

But now with a turbo wouldnt it be better to have the higher displacment S2000? and because the redline is lower you wouldnt have to get a bigger turbo to still make power at such a high RPM, meaning you could get a smaller turbo that hits full boost earlier?

 

You did not read my original post. The AP2 supercharger has a smaller pulley connected to the supercharger, therefore the supercharger will spin faster at a lower RPM resulting in the same amount of boost (7.5 psi) on the AP1 and AP2.

Also, Horsepower=(Torque*RPM)/5252 With this equation, you can have a smaller torque with the lower displacement AP1, but make the same amount of power because it has 1000 more RPM.

 

So, say we had a fairly small turbo in an AP1 and an AP2, hits full boost at about 4K, wouldnt a smaller turbo not be able to make power all the up to 9K? which would mean you would need a larger turbo therefor sacrificing a shorter spool time?

Or would this be irrelavent becuase ( i forgot where the RPMs drop to when you shift to second, third, and so on, but it is higher than 5K so you wouldnt need that small of a turbo?)

 

A GT30R would satisfy 90% of everyone's power goals. I went with the GT35R so I always have room to improve, plus when it spools, you better hold the phuck on.

 

thanks for all the help guys!

lol i have on more question, from what ive read most people who go FI replace the HG with a thinner one (i think), is this to lower compression???

 

Thicker to reduce compression. I use a inlinepro 3mm.

 

why would you want to lower compression? doesnt a higher compression create more power? I remember reading somewhere that higher compression doesnt cause detonation, it just leaves less room for error for the tuner? So wouldnt you just want to get a good tuner?

 

You can only run so much boost on an 11:1 compression engine before things start getting ugly. By lowering compression, it allows you to run more boost and make more power before things start breaking. InlinePRO claims that with the 3mm head gasket, it is safe up to 500hp on stock internals.

 

It's safety margin. We live in climates that constantly fluctuate in temperature, humidity, etc... With those fluctuations come changes in air density. The air at 20 degree F is FAR more dense than air at 100 degree F...I don't know that I feel comfortable boosting hard at low temps like that because it really tests the tune. Effective compression ratio is a function of how much boost you run and the static compression ratio of your motor. That's why guys on stock HG's tend to stay under 10 psi (a few are running up to 12 psi (JohnZ and Erick from Puerto Rico)). It's a margin of safety. Some people are more comfortable pushing the limits than others.

GL!