cjg454ss

iTrader: (27)

what timing do you guys shoot for with a 370 built motor, the turbo is a pt88, compression is 8:2.1 and boost is 17psi for low boost. The block is also O-ringed so pushing water is under control. i have 18* degrees in it now with no knock, a/f in the 12.2 range. im going to tune the alky tonight. is 22-24* sound about right? alky is a twin nozzle, 20 gal/hr. ive had it up to 22psi with 93 pump gas only with 15* timing. low compression for the win i guess.

Fireball

iTrader: (21)

o-ringing the block only doesn't necessarily mean pushing water is under control...you sticking with 17psi?

cjg454ss

iTrader: (27)

No im just setting up the low boost setting. i was going for 23-25 high boost.

Fireball

iTrader: (21)

dunno if I'd go that high in timing unless you were on good race fuel...even then, depending on cam choice, it'd probably be making some serious pressures in the cylinders...

cjg454ss

iTrader: (27)

hhow much timing do you run?

Fireball

iTrader: (21)

20ish on Q16

Pro Stock John

iTrader: (34)

You'd have to ask Intmd8 @ Speed Inc. to doublecheck but my Formula was running 19 degrees of timing. Ran race gas at 25 psi, I think meth would be hella risky @ 867rwhp like were I was at.

I ran 93 pump on 16 psi and went 10.00@139 with some turbo issues.

8:1 348ci.

black98ws6ta

iTrader: (77)

You should not be on pump at 22 psi. I would bet something in your motor would show signs of detonation if taken apart.

Frost

iTrader: (45)

This doesn't sound very safe.

cjg454ss

iTrader: (27)

22* is too much with alky added at 17psi? i will run race gas at 24-25 psi, im just trying to get a nice pump gas tune

Pro Stock John

iTrader: (34)

I know nothing about the alky stuff, but 22-24 degrees of timing plus alky + 17 psi = sounds aggressive. You're treating the alky like it's 110 or maybe even C16. I ran 9.4's with 110 a number of times with that low compression and it was no big deal.

cjg454ss

iTrader: (27)

i tried it tonight. it seemed ok. the alky almost seemed to slow it down. ill try it at the track on thursday to sure.

lt1camaroman93

iTrader: (7)

Hmm.. Makes me wonder how I haven't hurt mine yet. 26*, 13#'s, 10.3:1 comp, E85.

Pro Stock John

iTrader: (34)

Stock pcm and how big of a motor? You are running some sort of LS combo right?

lt1camaroman93

iTrader: (7)

408 stock ecu ls1.

Pro Stock John

iTrader: (34)

So stock WOT timing + E85 + 13 psi... E85 is what, like 108 octane? A2W helping making it work?

lt1camaroman93

iTrader: (7)

A2A. 106 octane and I think stock had 28* and I ran that to 10lbs. I'm new to tuning, that's for certain. I had a feeling I had far to much timing in this damn thing, but it runs VERY well for what it is.

black98ws6ta

iTrader: (77)

What does it run?

lt1camaroman93

iTrader: (7)

9.01@152 Been 155.5

black98ws6ta

iTrader: (77)

With a 408, 13 psi, 26*, air to air, and e85? That's a interesting mix.