Mine is around 9:1. I have run up to 30lb of boost on mine. I've heard rumors of guys running more compression. I would imagine you could run more compression, less boost, a little less timing than a 9:1 motor and it would work. :smt102
The SCR is quite misleading from what I have seen.
There's also MANY MANY more variables to look at than just SCR vs. PSIG.
Remember PSIG (gauge pressure) is just a measurement of restriction, so 23 PSIG on a SBC will not be the same flow (CFM) as 23 PSIG on a SBF, or even another SBC for that matter. Cam(s), porting, intake design, even the headers can effect PSIG.
I use PSIG to compare changes on the same vehicle, mostly.
There's been some interest in this in a few other threads and in PMs, so I'll ramble on a bit about it here. Any questions, comments, advice, ridicule, etc, are always welcome. :)
This is the same concept applied to diesel motors, and different from twin turbo, sequential turbos, etc. Diesels...
What do you guys think would be a good lifter for this setup.. Ive asked my engine builder to tell me what he thinks is best, but his head is so far up his ass he doesnt respond at all.. Super good guy and as smart and talented guy but as lazy as you can get.. Anyways, Ill order the lifters...
What are you guys running ball park timing say 20lbs boost?
i know all engines vary,just trying to get a rough baseline trying to learn
tuning efi deal new to it.is there any type table or scale to ballpark this on?
sbf 363,afr heads,10.1 compression,160 lbs injectors,bw s491/96,
thanks for any...