What heads are you running on your procharged setup? 12+ psi
02-27-2012, 08:21 AM
#1
What heads are you running on your procharged setup? 12+ psi Just want to know what type of heads everyone is running. Im running TEA stage 2 LS6 heads and Im beginning to wonder if they are holding me back on some power. Anybody have any recommendations for heads that will perform really well on a high boost setup? Ive got a 370ci with a D1 right now at 9.1:1 compression. What are the limits of the LS6 casting before they start pushing water? (safe limit). Im only seeing about 12psi right now with a 3.4 pulley. Wonder if it will even be worth the swap.
02-27-2012, 11:05 AM
#2
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Just want to know what type of heads everyone is running. Im running TEA stage 2 LS6 heads and Im beginning to wonder if they are holding me back on some power. Anybody have any recommendations for heads that will perform really well on a high boost setup? Ive got a 370ci with a D1 right now at 9.1:1 compression. What are the limits of the LS6 casting before they start pushing water? (safe limit). Im only seeing about 12psi right now with a 3.4 pulley. Wonder if it will even be worth the swap.
They are $2400+ brand new though.
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02-27-2012, 01:37 PM
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When you say holding back power-how much power?
For what it worth I've done several Patriot head deals at 900 rwhp and never pushed water.
Took off the Patriots and stepped up to some AFR 225's and made no difference either-blowers are cool that way.
For what it worth I've done several Patriot head deals at 900 rwhp and never pushed water.
Took off the Patriots and stepped up to some AFR 225's and made no difference either-blowers are cool that way.
02-27-2012, 02:41 PM
#11
That's correct. The 8-rib that you use with the Aster bracket is 7.65" but if you wanted to use the SDCE bracket, it's only 7.5" for some reason. I have to look, but it might have something to do with how the brackets are routed, I forget. I'm sure Bob can chime in and offer his expertise.
02-27-2012, 02:41 PM
#12
I was thinking maybe around 50rwhp with a set of TFS 235s? I was thinking of maybe swapping heads for later on purposes when i possibly make around that amount of power. Plus the thicker deck would be nice too.
02-27-2012, 05:31 PM
#15
Also, at that 14psi, I was maxing out 60lb injectors, so it's not like I wasn't making the power either or seeing 14psi of boost on a stock headed/cam/exhaust motor.
Gotta remember, boost is just a measure of the restriction of air that can't get into the cylinder head. So 14psi of boost on a 346 might only be 10psi of boost on a 383.
Gotta remember, boost is just a measure of the restriction of air that can't get into the cylinder head. So 14psi of boost on a 346 might only be 10psi of boost on a 383.
02-28-2012, 02:40 PM
#18
Also, at that 14psi, I was maxing out 60lb injectors, so it's not like I wasn't making the power either or seeing 14psi of boost on a stock headed/cam/exhaust motor.
Gotta remember, boost is just a measure of the restriction of air that can't get into the cylinder head. So 14psi of boost on a 346 might only be 10psi of boost on a 383.
Gotta remember, boost is just a measure of the restriction of air that can't get into the cylinder head. So 14psi of boost on a 346 might only be 10psi of boost on a 383.
Not sure exact numbers on flow, but i think maybe around 3-315 @ 600. They are the stage 2 LS6 from TEA.
02-28-2012, 04:32 PM
#19
Well u are running a 370 with a set of heads and probably free flowing exhaust. So 12psi is pretty decent. I think its nuts that the alchemist was hitting 14psi with heads and only a 4.00 pulley i have stock heads and a 4.38" pulley and make 5.5 or so. I just can't see .38" difference make 9 more pst of boost....