My A-Spec 500R Kit Dyno Charts

[DamnitzRoger]

Originally Posted by TurboSquirrel

Yeah, I am assuming that's what I have as well, if you look at that pic above of the number plate on the turbo they call it 500RSP. Do you know what the difference is between this and the regular 500R kit?

- Kevin

Originally Posted by Zero R

The newer ones use larger turbines with custom profiles machined to suit the specific housing. This allows for better more specific applications. They fit better, meaning they have more room around the CHRA to work with than the older models. They are proving to perform better as well in testing. The SP runs a .84 turbine housing, it spools quicker than the older 1.0 or 1.06 obviously however due to the specific wheel profiles the new .84 SP is showing more flow up to top than the old 1.06 A/r So your getting quicker response down low and more flow up top. Sounds like a good move in the right direction to me. The HP models will be able to outperform your standard 1.0 TO4Z as that was the goal in mind for that version and will be geared more towards high hp street/highway type car.

If it were me I would say a SP is about as good as it gets. Great response with the capability of going over 500whp. and honestly anyone who has been in a 500whp FD can tell you. It is more than adaquate for anything short of bragging rights.

I'll check the links and GOOD FOR YOU!! Another track proven a-spec powered FD.

got if from their section on rx7club.com