Stef's 7AFTE Tech/Project, First Dyno run pg16 Options

[hurley97]

As many of you know I'm going to turbo the 7A.


So first things first, with the help of Garrett's Turbo Tech 103 (Expert), I did the compressor flow map calculations... try to follow along, if you have any questions just ask...

here are the EQUATIONS:


and the CALCULATIONS (for a 7AFE with a target of 200hp at the flywheel):


then you need to plot some numbers on the COMPRESSOR FLOW MAP of your choice
I got a small Garrett 2052 which should be enough for my goals


From just looking at different compressor flow maps you'll learn a lot. In general, the closer the turbine and exhaust housing sizes the wider your power range will be but the maximum boost level is limited. When the sizes are significantly different you'll notice the compressor map will look taller and thinner, that gives you a smaller RPM range you can boost in but you can achieve higher boost levels in that range.

This post has been edited by hurley97: Jul 24, 2009 - 5:13 PM

[hurley97]

update: I think I am falling in love with my clutch, it grabs so nicely now with over 700 miles on it


I bought a new flange for my exhaust manifold (it has a T3 flange on the end and my turbo is a T25 footprint) so Manny can continue his welding projects that he loves so much (that is not to be mistaken for sarcasm).

I also got the flex section for my exhaust. Its 2.5" SS 6" long flex section from ATP Turbo.