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That's a good range. It's gotten to the point where I just suggest 10.0 to everybody who is running good fuel because it's still plenty efficient and has a good tuning window.
My 5.3 is 9.4:1 currently and will be 10:1 when I swap the 799’s for some AFR 205’s cut to 61cc.
It will be interesting to see if it picks up at the track
Sorry, Ron. It’s been so long I don’t remember. They’re at the shop now getting welded up. I’m going to have him measure the chambers once he gets them fixed.
Thanks.
20psi and 16* timing and it was a bit lean at 11.8 on the gas scale.
#7 cylinder burnt into the water jacket.
I don’t know why it made 20psi on a 8lb spring and no dome pressure. I didn’t expect it to make that much boost, so I wasn’t concerned with the timing map. When I checked the 2-step, it made 13psi at 5000rpm.
Also, I would think the CL compensation should have added fuel, yet it doesn’t appear that it did.
Oops..
370” engine. Ignite Red fuel. No intercooler. A 40mm JGS gate on each bank with good priority. 94/102 turbo.
Sure, in hindsight, I should have put it on a dyno and ensured the tune was good before sending it down track… but I didn’t.
I can disassemble the engine and get the block decked. The head is already at the shop for repair. If I keep this block, I’ll get new pistons to drop the CR to a more reasonable level, as it’s 13:1 now. (Originally built to be max effort).
All I want to do now is run 8.50 index. I can get a LC9 locally for $1000. Thinking of getting that and lose 100lbs.
Waste gates are JGS40mm. Everything I’ve read, is that they should be able to control a 370” engine. But, you certainly can’t believe everything you read on the internet.
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