well we had a dyno day sat and i put 202.8 to the rear wheels with 176.7lbs of torque. now my question is even with a fcd,down pipe,and 2inch intake,i still ran allmost a 11 on the a/f. what is up with that? and are these good numbers for the mods i have? i think its street port time.

ej

 

That sounds about right. I took my 1990 TII to a dyno day on Saturday and it laid down a poorly tuned 217hp on 6-9psi with the following mods. It was running richer than 10:1 on boost though, so I'm sure it has a lot more than that to give if I lean it out to say 11.7:1. I would've leaned it out if I had looked at the dyno chart correctly. Instead I added 15% more fuel on boost which just caused it to mis-fire. I thought something was wrong with the ignition, so I called it a day. It wasn't until I was on my way home that I realized that I was actually rich to begin with, so I took all of that fuel out and no more misfire. I know to pay more attention now.


Streetport
RB downpipe
Modified (lengthened) Bonez mid pipe
HKS cat-back
Bonez intake (using stock AFM and TID)
Haltech E6K

 

I dynoed at 250 RWHP but then woke up and realized I have a NA which runs a 17 and I never have to worry about leaning out under boost. Although I do have leaky injectors so I kind of can adjust my fuel.

 

ok, i just thought it was weird that the computer is giving it all this fuel and i have a FCD. i guess i am at about the limits of the stock fuel system though.haltech or microtech or wolf3d???


ej

 

Andrew what size turbo back are you running. I have a 2.5' dp and mp, 2' catback. Running 10psi tuned with an s-afc II, 720cc inj and a walbro, and an intake (well just a filter w/adapter). I put down 211.6 rwhp and 212.4 rwtq. With a hot tmic.(not heat soaked but hot) Are these numbers about right? I dont know what my fuel is at, they didnt give me a fuel chart. Should they have?

 

200 to the wheels is about right.&nbsp That's about 230 at the "crank".


-Ted

 

cool. now i really want my street port. any one want to donate to the ej needs a fast car fund???


ej

 

slow87turbo, what do you mean by "almost an 11", was the number higher or lower? You want 11.5 or richer (smaller number) on boost.

xzyras, I believe it's the 60mm HKS cat-back. I don't really know, it was on the car when I bought it. If it was on a Dynojet dyno, the shop should have a wideband O2 sensor (it's part of the package when you buy it, see www.dynojet.com), if they put the probe in your tailpipe, it should've logged it. It's impossible to really tune it without knowing the true A/F ratio. Most shops will save all of the runs, you should be able to have them print it out again witht the A/F graphed. I'd say 212 ft-lb of torque is very good for those mods. And yes, my IC was pretty hot as well. I don't know how hot it was on that run (I lost the log), but it was climbing over 150 degreees F on other runs. We sprayed it with water and blew shop air on it to cool it down.

 

They had an o2 sensor and it was showing up on the bottom of the screen. But they gave me a bunch of papers and when I got home I looked and no fuel numbers. So I don't know what numbers he tuned to. I dunno, maybe I was supposed to ask him for it?