Ok I have been playing around with DCR calculator and need some opinions.

I am going to be running the comp 228/230 .571/.573 112 (im guessing +4 advance is ground in) and a set of partiot heads. Trying to find out which heads are going to be best and with what head gasket.

LS6 stage II 59cc with a .051 cometic gasket = 11.46 SCR & 8.83 DCR

LS6 stage II 64cc with a .051 cometic gasket = 10.74 SCR & 8.29 DCR

LS6 stage II 59cc with a .045 cometic gasket = 11.64 SCR & 8.97 DCR

LS6 stage II 64cc with a .045 cometic gasket = 10.90 SCR & 8.41 DCR


any other combo's are welcome. I have read that 8.7 DCR is the highest you want to go for a pump gas car. Which makes me think the first combo is the best. Let me know what you guys think

http://www.alantripp.com/VE%20calcul...okup%20LS1.xls

 

Id roll with the 59cc, .040 gasket and just order the cam with less ground in advance.

Also plan on flycutting your pistons running a setup like that with 59cc heads..

 

A combo I had come up with a while ago was the TR230 cam, .040 gasket, NO MILL, and Livernois Stg2 243s. Came out to 11.x:1 IIRC. Your's looks good too, those are some nice CR numbers!

Here was my thread: https://ls1tech.com/forums/showthrea...ighlight=TR230

Sorry if I hijacked.

-J

 

i'd double check the advance, i'm bettin it'll be +2

 

I can't find a cam card on comps website stating how much advance is ground in. Anyone with this cam please chime in

 

OK, here are the results with +2 advance

LS6 stage II 59cc with a .051 cometic gasket = 11.46 SCR & 8.68 DCR

LS6 stage II 64cc with a .051 cometic gasket = 10.74 SCR & 8.15 DCR

LS6 stage II 59cc with a .045 cometic gasket = 11.64 SCR & 8.81 DCR

LS6 stage II 64cc with a .045 cometic gasket = 10.90 SCR & 8.27 DCR

as long as PTV checks out I think the first combo it the winner

 

I like the 3rd combo to combat detonation. How far are your pistons out of the hole?

 

i like the 1st one

 

Actualy the real DCR will be less. So anything borderline 8.8 on a calc will work with a good quench and tune 93 octane and 8.6 on 91

 

They don't have 93 in alot of places around here so I think setting it up for 91 is what I am going to do.

LS6 stage II 59cc with a .051 cometic gasket = 11.46 SCR & 8.68 DCR

This looks like it has the best numbers, will I need to flycut my pistons?

 

use the head chamber size for compression, not the gasket

 

If piston to deck -007 then he would be at .044 quench. Very respectable for street.

 

pred,
you've got pm.