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Okay, so luckily the crank does not need to be actively spinning to generate it's waveform. I was able to spin it by hand and manually record the waveform vs. crank position (after finding TDC). ...

Thanks for the tip on the offset table.

I think we had a misunderstanding - I wasn't implying a timing light triggered by the CKP. I was talking about finding TDC (and since my balancer is...

Hmm, I will have to look at this when I get home. I genuinely thought I had that setup correctly. Oh, wait, I see you're talking about offset, not flow rate. I may have overlooked that.



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I am running 40'ish at idle with manifold reference. It looks like I used a scale factor of 2.17 so I could keep the 63.5 E40 limit. That means I must have thought these were 138 lb/hr. That...

I've never done a CKP learn as most everything I've seen online is that it is difficult and very unclear if it worked or actually does anything. It also sounded like it was only potentially of...

Well, interesting you mention that. The car has not had timing tuned on a dyno for the last 2 engines (call them #3 and #4), so I can't really say if it makes more power with more timing. I tried...

I?ve been trying to figure out why my car has made low power across 3 engines across the span of 12 years. Long story short, I?m reasonably certain my issues are generally ignition related as things...

Lots of good comments here. I will say that I think there are at least 2 distinct issues at play here.
1) A 402 with 12 psi should be making more power than I am. Probably closer to 700 instead...

Sorry about that, I meant to include these the first time around. Here's my current tune and log which has a good 3rd gear pull.

This was my first time with the new smaller PC pulley, so I hit...

I'm trying to diagnose what has been consistent low power output out of my GTO across 3 engines. They've all been in the 12-15 psi range, all with the same F1A procharger pullied at the same ~62k...

Okay, I believe I found the solution a while back and its always annoying when people don't update their threads, so here goes.

Everything kept indicating this was a low airflow problem with the...

For reference, here's a log and tune from a few iterations earlier where I had a successful start without throttle at 95F ECT. Conveniently, my wideband read this start. This log has a similar (but...

Well, this is interesting - I didn't notice this until I opened my log file on another computer where I have a different set of graphs. My Inj duty cycle(or ms) changes dramatically right around...

This thread could really be titled "How do I get my idle to hang" and that would probably answer my questions. Here's the details though.

I have a 2007.5 Silverado that I swapped the 5.3 out of...

Kipps, I see you replied to one of my posts asking this question awhile back about enabling it in a 2008 silverado. I'm literally in the process of adding in the pins to my ECM now and hoping to...

I thought I would update how this went. The few weeks it was going to take me to get up and running turned into several months, but I finally got the new injectors installed. I did prove to myself...

Took me a while to find the thread again, but this comment above is what got me going down the path of thinking that the simple method wouldn't work due to the the 67 lb/min limit even in SD.

...

Hmm, so it took looking through about a hundred threads, but I may have finally found the answer:

https://forum.hptuners.com/showthread.php?57392-MAF-SD-options-for-boosted-TBSS

This was in...

Okay, so I've found some threads like this that are not encouraging:
https://forum.hptuners.com/showthread.php?50850-Running-a-VVT-motor-with-a-non-VVT-PCM-possible&highlight=VVT

But, I'm not...

So, I'm hoping to get VVT working in a 6.2 swap I'm undergoing. The cam I got did not come with phaser table information. You'd get the impression that this is a big deal, like not having injector...

Besides the physcial wiring to the correct 2 pins in the ECM, is adding VVT functionality to an E38 as simple as changing the drop down for it?

So, I picked up a 2007.5 silverado (E38 Gen IV)...

I have an 05 GTO with a 402 and F1A procharger with 2.5bar OS that I have been running on a restrictor for the past two years because I've been avoiding wanting to deal with a scaled tune (and the...

Well, turns out I have a saved copy, but it's too large to post as an attachment. Leaving this comment as a reminder for me to see if I can break it up into 2 files and post that.

Well good news. I zeroed the burst knock table and went ahead and ensured the MAF was failed by adjusting the dynamic airflow tables. I went for another drive with some low RPM pulls and my timing...

The injectors are actually exactly 63 lb/hr injectors. I dropped the fuel pressure from GM (58 psi I think) to Ford (43 psi) and that got the flow rate to exactly the E40 limit. I've been dreading...