430ci getting tuned Friday, GUESS THE RESULTS
03-27-2013, 02:38 PM
#1
430ci getting tuned Friday, GUESS THE RESULTS My new motor getting tuned at Vengeance Friday. Here are the cliff notes on the specs
430CI LS3 (4.072*4.125)
+5CC Dome Custom Wiseco Pistons
TSP Small Bore LS7 Heads (64CC)
CHE Bushed LS7 rockers
Cometic .040 Gasket
(14.5:1 compression or so)
E85 Fuel
FIC 750cc injectors
251/259 .663 lift cam, 114+4 ls
GZ Sportsman Vac pump
LG Velocity Stack CAI
LS7 Holley Hi-Ram
NW102 DBW Throttle Body
Underdrive Pulley
2" Stainless Longtubes (Texas Speed)
3" Xpipe and Powersticks, dumped at axle
4L80e + Circle-D 5c converter (will be locked on dyno)
Big 1500hp axles, DSS 1 piece driveshaft, 3.91 gears
Gibbs LS30 oil
Hoping for 620rwhp through the automatic, post your guesses!
430CI LS3 (4.072*4.125)
+5CC Dome Custom Wiseco Pistons
TSP Small Bore LS7 Heads (64CC)
CHE Bushed LS7 rockers
Cometic .040 Gasket
(14.5:1 compression or so)
E85 Fuel
FIC 750cc injectors
251/259 .663 lift cam, 114+4 ls
GZ Sportsman Vac pump
LG Velocity Stack CAI
LS7 Holley Hi-Ram
NW102 DBW Throttle Body
Underdrive Pulley
2" Stainless Longtubes (Texas Speed)
3" Xpipe and Powersticks, dumped at axle
4L80e + Circle-D 5c converter (will be locked on dyno)
Big 1500hp axles, DSS 1 piece driveshaft, 3.91 gears
Gibbs LS30 oil
Hoping for 620rwhp through the automatic, post your guesses!
03-27-2013, 03:26 PM
#3
Should be stout.
Ask for the data, it is a very small file so it can be emailed to you easily or put on a zip drive. The software is free to download, and can be informative if you play with the scales, you can check your drive line slip too. I use it to see if my clutch is being on good behaviour.
You will be able to see what the different correction factors do. It is also nice if you can over lay the AFR, and see what that is doing to your curve.
I have made sure to get the data with both my rwhp and fwhp dynos pulls.
Looking forward to your results.
Ask for the data, it is a very small file so it can be emailed to you easily or put on a zip drive. The software is free to download, and can be informative if you play with the scales, you can check your drive line slip too. I use it to see if my clutch is being on good behaviour.
You will be able to see what the different correction factors do. It is also nice if you can over lay the AFR, and see what that is doing to your curve.
I have made sure to get the data with both my rwhp and fwhp dynos pulls.
Looking forward to your results.
03-27-2013, 08:04 PM
#4
The old motor made 602std, 590 sae.
Changes are 1pt more compression (14.5 vs 13.7), smaller fuel injectors (duty cycle should be around 75 now), 2" headers vs 1 7/8, holley hi-ram vs ported fast 102, and a better CAI. I also changed the vac pump layout, and a few other minor, non-hp influencing things. I'll overlay the new graph over my old one, I have tons of dyno runs on the pc
Changes are 1pt more compression (14.5 vs 13.7), smaller fuel injectors (duty cycle should be around 75 now), 2" headers vs 1 7/8, holley hi-ram vs ported fast 102, and a better CAI. I also changed the vac pump layout, and a few other minor, non-hp influencing things. I'll overlay the new graph over my old one, I have tons of dyno runs on the pc
03-28-2013, 07:44 AM
#6
Yeah thats the hope. Figuring 10-15hp from the header/intake/compression and another 10-15 from the holley pushing the powerband higher and flowing better. we'll see. if the car picks up a few tenths and 2-3mph ill be happy. would like to be the first n/a 5th gen street car into the 9s
03-28-2013, 09:20 AM
#7
I am not sure if the hp peak will go higher or not with an intake. When I did my one engine, we dyno'd it first with a carb and single plane intake, then my ITB. They both peaked with in 50 rpm of each other. Thei IB making just a little more hp, but a lot more torque down low.
I think the cam selection has a lot more to do with the power curve/peak hp rpm than the intake. Your compression bump might do something though.
As for the headers, I have done the same with mine. I had the old style Kooks 1 7/8" and did some experiments when it was on the chassis dyno with an older motor by pulling the cat back. It gained 34hp at peak and lost 40hp down in the 3500rpm range, but still peaked at the exact same spot.
I am hoping the 2" Kooks headers and 4 1/2" cats allow me to lose a little less to the wheels, with out givng too much up on the bottom end. I will again dyno it with and without the cat back to see what the true dual 3" costs me now.
I think the cam selection has a lot more to do with the power curve/peak hp rpm than the intake. Your compression bump might do something though.
As for the headers, I have done the same with mine. I had the old style Kooks 1 7/8" and did some experiments when it was on the chassis dyno with an older motor by pulling the cat back. It gained 34hp at peak and lost 40hp down in the 3500rpm range, but still peaked at the exact same spot.
I am hoping the 2" Kooks headers and 4 1/2" cats allow me to lose a little less to the wheels, with out givng too much up on the bottom end. I will again dyno it with and without the cat back to see what the true dual 3" costs me now.
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03-29-2013, 04:14 PM
#8
Had a minor part failure. Will be back in a few weeks when I get it fixed and will post final #s.
That being said, it did make 585 with only 16 degrees timing and 11:1 af... on the third pull.
lol.
pretty sure i'll see 620 at least when we finish tuning
That being said, it did make 585 with only 16 degrees timing and 11:1 af... on the third pull.
lol.
pretty sure i'll see 620 at least when we finish tuning
