228/222 .588/.581 115lsa what ya think *turbo*
09-14-2009, 08:54 PM
#1
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228/222 .588/.581 115lsa what ya think *turbo*
228/222 .588/.581 115lsa
do you think this would be a good cam for my setup?
rcsb full size
408 w/ 9.2:1 cr
stock to mild ported 317 heads
turbonetics T78 .96ar
4l80e
also what would be a good converter size for it?? stock??
do you think this would be a good cam for my setup?
rcsb full size
408 w/ 9.2:1 cr
stock to mild ported 317 heads
turbonetics T78 .96ar
4l80e
also what would be a good converter size for it?? stock??
09-14-2009, 10:22 PM
#4
I think thats a little more cam than you need with that turbo, and a tight converter. Something like an Isky 221/218, .575''/.570'', 114* or 221/221, .575''/.575'', 115* would work well with that turbo size vs Ci. That 228/222 would be more my choice for a PT88 or larger, 18~20+psi, and 3000K converter.
09-14-2009, 10:51 PM
#5
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Decide on what turbo setup you're going to run before you decide on a cam. The log style vs manifolds are two completely different setups, which require two different types of cam specs.
For example , new cam for my turbo setup:
219/227 .607/.614 113LSA +2 advance
Lobe numbers: 13015R/13017R HR 113 +2
For example , new cam for my turbo setup:
219/227 .607/.614 113LSA +2 advance
Lobe numbers: 13015R/13017R HR 113 +2
09-15-2009, 08:59 AM
#6
Given the goals you've stated in other threads, cam choice isn't crucial in your build (I mean, get any decent cam with no overlap and you'll hit your goal).
Given that and the fact that you are going turbo, you can afford to run a smaller cam and not have any complaints.
Given that and the fact that you are going turbo, you can afford to run a smaller cam and not have any complaints.
09-15-2009, 11:25 AM
#7
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Decide on what turbo setup you're going to run before you decide on a cam. The log style vs manifolds are two completely different setups, which require two different types of cam specs.
For example , new cam for my turbo setup:
219/227 .607/.614 113LSA +2 advance
Lobe numbers: 13015R/13017R HR 113 +2
For example , new cam for my turbo setup:
219/227 .607/.614 113LSA +2 advance
Lobe numbers: 13015R/13017R HR 113 +2
and the reason i chose this cam is because i want to go bigger turbo eventually and i can get the cam for trading some things that i have
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09-15-2009, 01:36 PM
#8
Honestly, I'd pick a cam in the 230's (if you are going to work the heads) with a decent intake bias. That 408 is going to do fine on the exhaust side -- the exhaust pulses are very strong.
The log vs. headers thing is really a generalization IMO -- what I look for is exhaust pressure. I high exhaust pressure build needs a goodly intake bias. A build with little exhaust pressure needs more of an exhaust bias, and a balanced exhaust pressure needs a single pattern cam. Typically logs retain more heat and build more exhaust pressure.
Having said that, I wouldn't give it too much thought. A max race effort will see a benefit from tuning every component to the turbo, but for your goals, the cam won't make a huge impact (or at least enough of a detriment that you can't simply overcome it by adding another psi of boost).
With my GT70 rear mount 408 that hit your power range, I ran a 236/230 114lsa and TEA stage III 317 based heads. All that was through a stock truck manifold and stock fuel system (with twin pumps) and 72lbers. I also ran the truck with a 230/236 114lsa and had about the same power (but it was 'rougher' feeling to me and much harder to tune temps wise) but set some spark plug wires on fire at the dyno.
The log vs. headers thing is really a generalization IMO -- what I look for is exhaust pressure. I high exhaust pressure build needs a goodly intake bias. A build with little exhaust pressure needs more of an exhaust bias, and a balanced exhaust pressure needs a single pattern cam. Typically logs retain more heat and build more exhaust pressure.
Having said that, I wouldn't give it too much thought. A max race effort will see a benefit from tuning every component to the turbo, but for your goals, the cam won't make a huge impact (or at least enough of a detriment that you can't simply overcome it by adding another psi of boost).
With my GT70 rear mount 408 that hit your power range, I ran a 236/230 114lsa and TEA stage III 317 based heads. All that was through a stock truck manifold and stock fuel system (with twin pumps) and 72lbers. I also ran the truck with a 230/236 114lsa and had about the same power (but it was 'rougher' feeling to me and much harder to tune temps wise) but set some spark plug wires on fire at the dyno.
