ct26 part 2

[nocutt]

I plan to run the 95 ECM with 50# injectors, LS1 MAF, Perfect Power SMT5 piggy-back to control the MAF frequency and ignition timing

Interesting...Jeff can the '95 ECM pulse those injectors low enough for a good idle and low RPM drivability??? Asking because we just used a haltech for a project using 36lb injectors...those things were too touchy down low...

[timg]

The T4 .68 turbine housing is your problem. Also, the o-c housings do not spool up like the tangential housings. Hopefully it's an O-trim turbine wheel (measures just over 2.25" when looking into the outlet side). If it's a P-trim (just over 2.5"), that's what I use in my 6.6L V-8 turbo, and that's way too big. Really, you need a T3 .63 or .82 A/R depending on how fast you want it to boost.

How do you control fuel??? (Beware the FMU. Stock injectors shut off at about 70psi.) What size injectors? MAP? MAF?

I plan to run the 95 ECM with 50# injectors, LS1 MAF, Perfect Power SMT5 piggy-back to control the MAF frequency and ignition timing.

I should finish it this month (or next).

Do you know if the Perfect Power piggybacks will work on the 95 ECU and crank trigger setups for ignition timing and fuel? I've been trying to figure this out for a bit. Thanks!

Tim

[pontiacjeff]

The Perfect Power will work on multiple tooth, missing tooth, one tooth signals. I have not used it to run DIS yet. I did use it successfully to run the ESC on a 2.8 Fiero.

I expect to use the crank signal as a base reference. Not sure how it will work yet. I'd like to use the SMT-6, but I don't have one. I do have a -5.

I don't know how it's going to run with the 50# injectors, but the PP can modify the MAF signal to almost no frequency output. The injectors might be real lazy down there... I can always change the injectors if it's a problem. It seems others run them and get away with it.