Datalogs

chriscar · 05-02-2006, 09:15 AM

I've upgraded from a T25 with a sidemount IC to T28 & FMIC on my NX. The FMIC setup uses Hotshot pipes with 2" hotside, 2.5" cold side and a Spearco intercooler (2" in and out).

For some odd reason, I was topping out my bored maf at 7psi with the T28, so I borrowed a JWT ecu from a friend, and installed it with a Z32 maf.

The car is running like a monster now - read my post here.
http://www.sr20forum.com/turbo/155295-now-i-know-what-peoples-been-talkin-about.html
Anyway, I thought you guys might be interested in my datalogs.

On with the show.

T25 ECU - Bored maf, 4bar, 370, S4, 9.5:1 compression
T28 ECU - Z32 maf, 4bar, 370, S4, 8.5:1 compression

Look at how much more injector im using at 10psi on the T28 compared to the T25 at 7psi

The DET ecu has LESS timing than the DE. I thought the lower compression program would have a more aggressive curve.

This I love. Look how much less maf voltage the Z32 has, while flowing more air.

Anyone care to comment?

C

Calum · 05-03-2006, 09:04 AM

Wow, thats pretty dang sweet Chris!

Yea, JWT uses a different timing map when you step up to the larger injectors/maf, regardless of the compression. I guess they assume you won't be running a little girlie man turbo and need to be more conservative, which is probably a good assumption. I bet if you called and asked when they developed that program it was probably on a car with a T3/T4 or something similair. Btw, most people don't know about this, shhh! Its a secret.