I guess you have ur answer.

Jeff,

are BLMs locked or just not in Learn?

Rule of thumb is that a roller is worth another 10* on duration for both sides. And no break in necessary.

I used TF 23d heads on my 84 Xfire w good success. It ran low 13's. If swapping cams, I wouldn't do anything other than a roller retrofit.

Yes that's what I meant and thanks. Is there a option as to what format the datalog is exported, ie csv, xls etc? Apologies if these are redundant questions.

Haven't been following much lately. But what did you all come up w when looking for download of datalogs?

Used an Aeromotive 13301 VAFPR and MSD 6A box and coil w Accel module.

The Lingenfelter L98 single pattern 219 roller is actually a pretty decent cam. I had something very similar to it in a XFIRE using Trick Flow heads. Made 285rwhp @ 4700 rpm/347rwtq@3400rpm IIRC.

A tutorial is great no question. I have given several presentations to ZR-1 enthusiasts about tuning the LT-5. However, what I have found is if someone does not understand how an IC engine works,...

I would agree and in addition, your baseline settings need to be correct. As an example, the Min Air Adj. should be correct.
Your Inj. offsets also need to be correct. Very Impoortant.

Mark,

I need you to get back on the Injector Offset Thread. Hurry up and get better!

Dominic

Boy this really brings back memories. I owned a 73 Z in 1974 having traded in my 72 Corvette coupe for it. I was impressed with how smooth the straight six was when compared to the SBC. And it didn't...

Is there a particular TPS% this lean condition occurs at or is it random? I'm wondering if possibly the injector Offset v Pulsewidth may have been modified. That would affect fueling at small PW....

Doesn't mean the injectors are not going static. Something that needs to be measured.

I ran 2 x 2.13" TBIs on my 84 Xfire. MAP would drop 2-3 kPa at WOT. Figured I was flowing close to 750cfm. Power peak was at 4800rpm. Just giving you some kind of benchmark. The motor was a 5.7L w...