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

[lagos]

I may also want to get a turbo timer. I'm still not sure about it and I guess I can always get one later.

I'm also trying to decide if I want to give in and sell my APEXi AFC Neo and get an E-Manage Blue. What I like about the Neo is the ability to change settings as well as see what the current correction is as I'm driving.

Sell the safc, dont buy a turbo timer, and put the money into an emanage.
The wideband will give you all the info you need, and you'll be able to datalog while driving with the emanage. Not to mention that the Emanage can independently control fuel and timing. Thats a huge benefit. The SAFC really should never be used to try to control bigger injectors.

If you really want a turbo timer I highly recommend the Blitz dualTT with digital boost gauge. Its more accurate then any gauge I've ever used. The only downside is that it reads in BAR, but you get used to it quickly.... and the turbo timer part works fine too.

[6strngs]

I may also want to get a turbo timer. I'm still not sure about it and I guess I can always get one later.

I'm also trying to decide if I want to give in and sell my APEXi AFC Neo and get an E-Manage Blue. What I like about the Neo is the ability to change settings as well as see what the current correction is as I'm driving.

Sell the safc, dont buy a turbo timer, and put the money into an emanage.
The wideband will give you all the info you need, and you'll be able to datalog while driving with the emanage. Not to mention that the Emanage can independently control fuel and timing. Thats a huge benefit. The SAFC really should never be used to try to control bigger injectors.

If you really want a turbo timer I highly recommend the Blitz dualTT with digital boost gauge. Its more accurate then any gauge I've ever used. The only downside is that it reads in BAR, but you get used to it quickly.... and the turbo timer part works fine too.

emanage blue can control timing? I thought only the ultimate could?