who has the highest CR on 60*?

[ghrarhg]

According to the CR calculator, and if the 3400 heads are indeed 28.6cc, I'm running 8.5:1

[mfuller]

I think I read somewhere the other day that Mark from MP Racing is running 8.0:1 for a boosted setup.

Absolutely true. 8.0:1 forged bottom-end with a small Garrett snail.

[torq455]

my stock 3.1 is 8.9. iirc, Curtis had 8.5 for his boosted 3.1.

[bszopi]

I think I read somewhere the other day that Mark from MP Racing is running 8.0:1 for a boosted setup.

[SofaKingWeToddDid]

im sure some ill fated junk yard destined rust wonder reservation-mobile straight out of the trailer park from the shittiest side of town driven by the greasest bastard thats ever farted in your presence while scratching his ass at the same time followed up with picking his teeth, has been running for a while on like 1:1. lol

[MidnightriderZ24]

9.0:1 3400 wiseco pistons with 3500 heads. anybody lower?

[SofaKingWeToddDid]

whats the lowest overall compression on a running 60*v6?

[pocket-rocket]

for the simple fact that once the ECM has read the knock-retard

That poor kid. People are always saying he is a bad egg

[ForcedFirebird]

I agree with the others' I have conversed with. It's not the compression that makes the bearings look like punch-tapes, but rather knock. People rely too much on a knock sensor IMHO, for the simple fact that once the ECM has read the knock-retard, the event has already happened. It is in place as a safety feature more so than a tuning tool.

[torq455]

i believe Lorenzo had a 3400 running on a 12.5 CR, but it was beating up the bearings.

[stevalier]

Im running 11:5:1, on 94 octane, still need a chip for it

[Superdave]

One of the domesticcrew guys was running a 3x00 hybrid with iron head pistons, 3400 heads and a H272-2 cam. I don't remember how fast it was but it did run.

most of those guys have moved on in the last several years though.

[no_doz]

if you wanted to push 12:1 or 12.5:1 would a cam regrind be a necessity & if so what aspects would be beneficial to change as far as the cam goes?

[ForcedFirebird]

this is so off topic atm but im eating up all this theoretical discussion as i eagerly await a high number from someone.

is anyone running a 3.1 or 3100 with the iron head pistons & the iron head-head gaskets right now?

There are quite a few f-bodies with that combination I sell parts to them all the time...

11.5:1 or so pump gas 3.4/3500's

[no_doz]

this is so off topic atm but im eating up all this theoretical discussion as i eagerly await a high number from someone.

is anyone running a 3.1 or 3100 with the iron head pistons & the iron head-head gaskets right now?