Redyno'd my heads/cam LS3...
11-02-2015, 11:55 AM
#1
Redyno'd my heads/cam LS3... Well, a quick list of mods:
2010 Camaro SS M6
AI 280cc Heads (stockish compression)
VR 235/231 .621/.617 115+3
Peak Speed Radical 102 intake manifold
NW102 TB
CAI CAI
1.75" LT's Ebay Headers
OR pipes
2.5" Borla ATAK exhaust
SLP UD
HP tuners... tuned by me
Car made 458rwhp/423rwtq before the addition of the Peak Speed Radical 102 Intake and NW102 TB. After those two mods, new numbers were 461rwhp/421rwtq. Intake and TB didnt do anything for me, which leads me to believe they werent a restriction for me. I think the setup is just done in N/A form... big heads, turbo cam, small exhaust... i think it is just where it is.
A little disappointed as I wanted to hit 480rwhp... but the plan was always to turbo the car, and atleast I have a baseline before the turbo goes on this winter (Huron Speed/Precision 7675).
Graph attached... just thought I would share.
2010 Camaro SS M6
AI 280cc Heads (stockish compression)
VR 235/231 .621/.617 115+3
Peak Speed Radical 102 intake manifold
NW102 TB
CAI CAI
1.75" LT's Ebay Headers
OR pipes
2.5" Borla ATAK exhaust
SLP UD
HP tuners... tuned by me
Car made 458rwhp/423rwtq before the addition of the Peak Speed Radical 102 Intake and NW102 TB. After those two mods, new numbers were 461rwhp/421rwtq. Intake and TB didnt do anything for me, which leads me to believe they werent a restriction for me. I think the setup is just done in N/A form... big heads, turbo cam, small exhaust... i think it is just where it is.
A little disappointed as I wanted to hit 480rwhp... but the plan was always to turbo the car, and atleast I have a baseline before the turbo goes on this winter (Huron Speed/Precision 7675).
Graph attached... just thought I would share.
Last edited by RealQuick; 11-12-2015 at 09:48 AM.
11-02-2015, 12:29 PM
#2
TECH Addict
I wouldn't be disappointed. Your exhaust is tiny and the cam isn't a good n/a cam for your combination, so don't get too caught up in the numbers. It's still going to give you 900rwhp without too much effort, and should be much fun.
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11-02-2015, 07:04 PM
#10
Intake swaps seem hit or miss. My brother swapped his LS6 for a FAST 90/90 on his heads/cam LS1 and didn't gain anything. Some people gain on bolt-on cars though, so who knows.
11-02-2015, 07:07 PM
#11
The cam isn't optimized, eBay headers are not on par as a quality set that are 1 7/8" either. That could add 20-40rwhp easily.
Just redyno on the same machine once you go turbo. Dyno's can vary. The mph it achieves at the track can't be manipulated.... that's the real test.
Just redyno on the same machine once you go turbo. Dyno's can vary. The mph it achieves at the track can't be manipulated.... that's the real test.
11-02-2015, 07:14 PM
#13
The cam isn't optimized, eBay headers are not on par as a quality set that are 1 7/8" either. That could add 20-40rwhp easily.
Just redyno on the same machine once you go turbo. Dyno's can vary. The mph it achieves at the track can't be manipulated.... that's the real test.
Just redyno on the same machine once you go turbo. Dyno's can vary. The mph it achieves at the track can't be manipulated.... that's the real test.
11-03-2015, 10:44 AM
#14
There are plenty of factors that can effect mph at the track and make it look like a car has or hasn't gained horsepower. Dyno numbers aren't the be all end all, but they have their place just as track numbers do. I agree 100% on sticking with the same dyno.
11-03-2015, 02:16 PM
#15
TECH Addict
Track times and dyno results are both useless without a baseline. Fast timeslips don't mean squat unless it's faster than YOUR last one. Same with dyno results. High numbers don't mean anything unless they are higher than YOUR last numbers.
It doesn't matter how big (dyno) or small (timeslip) the numbers are. What matters is how big or small the IMPROVEMENT is.
The ONLY two things that measure success are if:
YOU'RE having fun, and if
you're IMPROVING.
It doesn't matter how big (dyno) or small (timeslip) the numbers are. What matters is how big or small the IMPROVEMENT is.
The ONLY two things that measure success are if:
YOU'RE having fun, and if
you're IMPROVING.
11-04-2015, 01:34 PM
#16
Few years ago a few tests showed most ported LS3s aren't worth doing here's one but there's others & IIRC there were 1 or 2 that gained a little but they were referred to as modified intakes not ported
https://ls1tech.com/forums/gen-5-cam...manifolds.html
https://ls1tech.com/forums/gen-5-cam...manifolds.html
11-10-2015, 12:00 PM
#20
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Something seems off unless the whole exhaust is just killing it. Usually dez's dyno jet is 20-25 more than slowhawks mustang in bridgewater. Slowhawk I think said hes getting 450-460 with a nice street cam and supporting bolt ons. To late to go to NED for numbers unless you go south though.