2007 Z06 LS7 HPE Heads & Cam Results
12-14-2006, 04:47 PM
#41
Originally Posted by NEVRLIFT
Those are some big numbers for a 402. I don't think I've seen one with 550rwhp yet but I could be wrong. Engines with those type of numbers are usually for drag racing mostly.
12-14-2006, 04:59 PM
#42
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Originally Posted by Ron@Vengeance
Congrats on your #s!!!! They seem right in line with your mods... We have completed several LS7 Z06s and they tend to make 540 to 560 with mods similar to yours minus the heads... I can definately see the heads picking up another 10 or 20 with some cleanup.
Again, congrats!!!!!
EDIT: Here is one of our Cam packages for reference.. Should be cool to see the difference the added compression/head work adds under the curve !!!!
Again, congrats!!!!!
EDIT: Here is one of our Cam packages for reference.. Should be cool to see the difference the added compression/head work adds under the curve !!!!
12-14-2006, 05:24 PM
#43
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Originally Posted by Beast96Z
Not really. Rapid motorsports has done it a few times with hydraulic cams. There are also various members who have done it with hydro's. A local guy just hit 535 rwhp with cathedral heads low 240'ish cam, and a unported FAST in a tame street application 402.... and so on. It's not uncommon these days.
The same builder last month did 580 RWHP with a 422ci LS2, LS7 heads and LS7 intake with the same 230 ish cam.
He also just built a 416ci with L92 heads and L76 intake, same sized cam, he ported the heads to flow 350cfm, it put down 526 RWHP this week.
.
Last edited by Quickin; 12-14-2006 at 05:40 PM.
12-14-2006, 08:23 PM
#44
Originally Posted by Quickin
My buddy's 422ci dynoed 535 RWHP 3 1/2 years ago with LS6 heads and FAST 90/90. Cam was in the 230's.
The same builder last month did 580 RWHP with a 422ci LS2, LS7 heads and LS7 intake with the same 230 ish cam.
He also just built a 416ci with L92 heads and L76 intake, same sized cam, he ported the heads to flow 350cfm, it put down 526 RWHP this week.
.
The same builder last month did 580 RWHP with a 422ci LS2, LS7 heads and LS7 intake with the same 230 ish cam.
He also just built a 416ci with L92 heads and L76 intake, same sized cam, he ported the heads to flow 350cfm, it put down 526 RWHP this week.
.
12-14-2006, 08:33 PM
#46
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Originally Posted by Beast96Z
Not really. Rapid motorsports has done it a few times with hydraulic cams. There are also various members who have done it with hydro's. A local guy just hit 535 rwhp with cathedral heads low 240'ish cam, and a unported FAST in a tame street application 402.... and so on. It's not uncommon these days.
12-14-2006, 08:58 PM
#47
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I knew this guy, Nelson Piquet, he had a 1.5 litre BMW turbo that made 1500 hp back in the early 80's. It just wasn't a very good daily driver.
This head and cam package was what I thought would meet (and it does) what I wanted in a fast street-driven, emission-legal, similar-to-stock manners C6 Z06 (1500 rpm-5000 rpm, the majority of the time). It was not intended as a max effort attempt. I just posted the recipe and results for your information as there has been very few LS7 results posted so far or with complete disclosure of what was actually done.
This head and cam package was what I thought would meet (and it does) what I wanted in a fast street-driven, emission-legal, similar-to-stock manners C6 Z06 (1500 rpm-5000 rpm, the majority of the time). It was not intended as a max effort attempt. I just posted the recipe and results for your information as there has been very few LS7 results posted so far or with complete disclosure of what was actually done.
12-15-2006, 02:14 AM
#48
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When comparing Dyno run at shop A to Dyno shop B you need to set the Dyno's to SAE adjusted RWHP.
Looking at the dyno sheet that was listed up for GTOVAN's Z06 it was not adjusted.
Now if HPE is way above sea level and LG is at or close to sea level then the numbers will be different (even with the same vehicle and same type of dyno).
Now if both car's would have been dyno'd the same day on the same dyno within a realitivly close time to negate for heat and air density (humidity etc) then you could compare them to each other and see the differences.
GTOVAN its sounds like a real kick in the *** and I hope you enjoy it... Now to get your MTI 455 up to above your LS7's level...
Looking at the dyno sheet that was listed up for GTOVAN's Z06 it was not adjusted.
Now if HPE is way above sea level and LG is at or close to sea level then the numbers will be different (even with the same vehicle and same type of dyno).
Now if both car's would have been dyno'd the same day on the same dyno within a realitivly close time to negate for heat and air density (humidity etc) then you could compare them to each other and see the differences.
GTOVAN its sounds like a real kick in the *** and I hope you enjoy it... Now to get your MTI 455 up to above your LS7's level...
12-15-2006, 08:51 AM
#49
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Originally Posted by Bring the Noise
Looking at the dyno sheet that was listed up for GTOVAN's Z06 it was not adjusted.
GTOVAN its sounds like a real kick in the *** and I hope you enjoy it... Now to get your MTI 455 up to above your LS7's level...
GTOVAN its sounds like a real kick in the *** and I hope you enjoy it... Now to get your MTI 455 up to above your LS7's level...
Actually the 455 makes as much or slightly more than the LS7 but the high stalled auto doesn't dyno as well. But since you mentioned it, it is getting a cam change similar to the LS7 LSK lobes 243/247 110+3 .65x" lift from a 243/243 LSK lobes on a 114+0. Want to bring the power curve down the rpm scale a bit and get some more torque to get the pig (comparatively speaking) moving.
Last edited by gtovan; 12-15-2006 at 11:19 AM.
12-15-2006, 01:59 PM
#51
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looks like vengences cam car makes as good torque and about the same hp numbers. I'd say your cam is mismatched pretty badly.
still not bad numbers, I'm sure its still hellafun to drive.
still not bad numbers, I'm sure its still hellafun to drive.
12-15-2006, 02:13 PM
#52
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Originally Posted by 383ss
looks like vengences cam car makes as good torque and about the same hp numbers. I'd say your cam is mismatched pretty badly.
still not bad numbers, I'm sure its still hellafun to drive.
still not bad numbers, I'm sure its still hellafun to drive.
12-15-2006, 03:38 PM
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Originally Posted by LostCauseZ06
hope HPE didnt offer you any sort of warranty... if they did go ahead and throw it out the window cause they wont honor it..
.
12-15-2006, 03:45 PM
#56
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Originally Posted by Quickin
what didn't they cover for you?
.
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Last edited by LostCauseZ06; 12-15-2006 at 03:50 PM.
12-15-2006, 05:01 PM
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Numbers are good, but I think the cam could stand to be changed. Not for the sake of higher numbers or anything, just for something thats designed around LS7 heads instead of LS1/6 heads.