Any 4" ETP LS7 Results?
Ls7 -4.00 I will have some results this week. We are going to dyno all week and try to come up with a killer "LS7" substitute. I hope we find what were looking for.
Were also going to try and get our proto 4 barrel manifold in there as well.
I will post results as soon as I get them.
starting with a 4 inch stroke, Diamond/ETP pistons, 11.3 to 1 comp, 238 246, .650 lift 114lsa. stock ls7 rocker arms, hoping to get the new Yella Terra/ETP rockers this week. LS7 factory manifold wtih ETP-fuel rail and throttle linkage kit. Nick Williams 90mm, Callies crank, Compstar 6.200,Total Seal Rings,Comp lifters and a whole lot of other stuff.
Were also going to try and get our proto 4 barrel manifold in there as well.
I will post results as soon as I get them.
starting with a 4 inch stroke, Diamond/ETP pistons, 11.3 to 1 comp, 238 246, .650 lift 114lsa. stock ls7 rocker arms, hoping to get the new Yella Terra/ETP rockers this week. LS7 factory manifold wtih ETP-fuel rail and throttle linkage kit. Nick Williams 90mm, Callies crank, Compstar 6.200,Total Seal Rings,Comp lifters and a whole lot of other stuff.
Originally Posted by cary et performance
I will have some results this week. We are going to dyno all week and try to come up with a killer "LS7" substitute. I hope we find what were looking for.
Were also going to try and get our proto 4 barrel manifold in there as well.
I will post results as soon as I get them.
starting with a 4 inch stroke, Diamond/ETP pistons, 11.3 to 1 comp, 238 246, .650 lift 114lsa. stock ls7 rocker arms, hoping to get the new Yella Terra/ETP rockers this week. LS7 factory manifold wtih ETP-fuel rail and throttle linkage kit. Nick Williams 90mm, Callies crank, Compstar 6.200,Total Seal Rings,Comp lifters and a whole lot of other stuff.
Were also going to try and get our proto 4 barrel manifold in there as well.
I will post results as soon as I get them.
starting with a 4 inch stroke, Diamond/ETP pistons, 11.3 to 1 comp, 238 246, .650 lift 114lsa. stock ls7 rocker arms, hoping to get the new Yella Terra/ETP rockers this week. LS7 factory manifold wtih ETP-fuel rail and throttle linkage kit. Nick Williams 90mm, Callies crank, Compstar 6.200,Total Seal Rings,Comp lifters and a whole lot of other stuff.
Nate
Last edited by Nate_Taufer; Aug 7, 2006 at 10:28 PM.
etp results I will post a full sheet as soon as I get a chance, I figured I would share preliminary results.
26 degrees of timing and 12.7:1 AFR. Still need to do some tuning, but we ran this on a FAST XFI system and we'll spend more time on it when it gets in the car with a MAF and stock computer.
peak hp 630 @6700 627@7000
peak torque 565 @ 5100
average hp from 4000-7000 550
average tq from 4000-7000 527 tq@4000- 509 @6700 501
stock rockers, comp R lifters, PSI 1225 valve springs, steel valves 134 grams on the intake, .010 preload. NO valve float or any signs of instability at all. We ran it all the way to 7400 rpm.
This is not a dyno queen, but from all the results we have independantly gathered, we are very happy with the results. It idles real nice at 850rpm. It is a very streetable combo.
26 degrees of timing and 12.7:1 AFR. Still need to do some tuning, but we ran this on a FAST XFI system and we'll spend more time on it when it gets in the car with a MAF and stock computer.
peak hp 630 @6700 627@7000
peak torque 565 @ 5100
average hp from 4000-7000 550
average tq from 4000-7000 527 tq@4000- 509 @6700 501
stock rockers, comp R lifters, PSI 1225 valve springs, steel valves 134 grams on the intake, .010 preload. NO valve float or any signs of instability at all. We ran it all the way to 7400 rpm.
This is not a dyno queen, but from all the results we have independantly gathered, we are very happy with the results. It idles real nice at 850rpm. It is a very streetable combo.
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Originally Posted by cary et performance
I will post a full sheet as soon as I get a chance, I figured I would share preliminary results.
26 degrees of timing and 12.7:1 AFR. Still need to do some tuning, but we ran this on a FAST XFI system and we'll spend more time on it when it gets in the car with a MAF and stock computer.
peak hp 630 @6700 627@7000
peak torque 565 @ 5100
average hp from 4000-7000 550
average tq from 4000-7000 527 tq@4000- 509 @6700 501
stock rockers, comp R lifters, PSI 1225 valve springs, steel valves 134 grams on the intake, .010 preload. NO valve float or any signs of instability at all. We ran it all the way to 7400 rpm.
This is not a dyno queen, but from all the results we have independantly gathered, we are very happy with the results. It idles real nice at 850rpm. It is a very streetable combo.
26 degrees of timing and 12.7:1 AFR. Still need to do some tuning, but we ran this on a FAST XFI system and we'll spend more time on it when it gets in the car with a MAF and stock computer.
peak hp 630 @6700 627@7000
peak torque 565 @ 5100
average hp from 4000-7000 550
average tq from 4000-7000 527 tq@4000- 509 @6700 501
stock rockers, comp R lifters, PSI 1225 valve springs, steel valves 134 grams on the intake, .010 preload. NO valve float or any signs of instability at all. We ran it all the way to 7400 rpm.
This is not a dyno queen, but from all the results we have independantly gathered, we are very happy with the results. It idles real nice at 850rpm. It is a very streetable combo.
Nate
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Originally Posted by Nate_Taufer
cary did you read post #4 of this thread? I think that cam is horribly mismatched to the short runners of the carb style intake. I would look at something in the 105-107 lsa range.
Nate
Nate
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Originally Posted by sscam68
Maybe you should ask why they did what they did instead telling them they are wrong.
At least you won't come off so foolish.
At least you won't come off so foolish.
Nate
post number 4 vs. post number two Nate,
This was not run with a four barrell manifold. It was a factory LS7 manifold. As I said on my first post, we were going to try and run a 4v intake manifold, but we didn't.
This was not run with a four barrell manifold. It was a factory LS7 manifold. As I said on my first post, we were going to try and run a 4v intake manifold, but we didn't.
Originally Posted by cary et performance
Nate,
This was not run with a four barrell manifold. It was a factory LS7 manifold. As I said on my first post, we were going to try and run a 4v intake manifold, but we didn't.
This was not run with a four barrell manifold. It was a factory LS7 manifold. As I said on my first post, we were going to try and run a 4v intake manifold, but we didn't.
Ls7-4.00
Originally Posted by Nate_Taufer
Cary I still think you should tighten up that lsa to 110-111 or so. I think power would pick up nicely.Nate
This is an every day driver. Idle quality and drivability is a concern. Yes, it may pick up a little down in the low and mid, but we already hit 570 ft. lbs messing around with the tune. I have run a lot of different camshafts with all of our cylinder heads, they do not like that much overlap. I see it a lot.
Justin,
This was on a DTS Engine dyno. Chassis dynos are good for drivability and tweeking, but there are way too many variables for A/B testing. One of the biggest reasons I did this project was to prove out valve train and manifold issues that seem to come up. We didn't have any.
