f-you, I just woke up. LOL

Well no wonder it won't run worth a sh!t.....



How much timing are you running total?? That motor might need some more -- 114* octane can take more timing...

Have you tried 38* total?

14:1 compression ratio -- big ass cam -- 114 octane race gas... MORE TIMING needed! Holy smokes dude -- who built you a 14:1 motor!??!


I'm being serious here -- that motor can take 36 or 38* of total.

Pump gas - great heads - might make best power on 32 to 34* but pump premium with oxygenated etc - is going to take less (retarded) timing

That's some interesting info Greg. I didn't know higher compression likes more timing. When I originally dynode this motor in Muncie, Indiana at the builder shop we went with 38* total timing.

When I dyno tuned down here after the timing chain incident Joe thought it ran best at 32.5*.

Now your making sense LOL

I disagree with Greg to a point on timing needed. Compression is part of it but the efficiency of the heads/combustion chamber has a big part to do with it.

Based on your theory Greg, tell me why my motor likes 30* timing (13:1 compression) and Rob's FE likes near 40* (less than mine, around 12:1 give or take).

It's mostly due to the difference in combustion chamber, valve angle, etc.

Typical 23* headed engines do not run low timing (relatively) like 32* so that is very surprising. 36-38* sounds more like it. I am thinking Joe built in a lot of safety for you? I dunno else why. That doesn't make much sense to me based on what you've shared.

Wrong. The motor blew because I DID NOT add some 100 octane in that weekend like previously. Constant beating with shaky unpredictable 91 octane on a high revving 11:1 motor was not the best thing to do, but it is what it is.

Weren't you 12.5 to 1 before?

Nope. Build sheet shows 14:1. Piston part number shows 15:1

:eek:

You should be running $3 race gas IMO......



E85

:D

My car is going to use gas like a Prius compared to yours. I filled my tank at Sonoma and then ran a full session. Went back to the pumps and refilled just to get an idea of how much fuel I used........only 4.3 gallons