Stock LS7 on engine dyno with BS3
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TECH Junkie
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From: Clayton, North Carolina
Stock LS7 on engine dyno with BS3 We did some power runs last night on a stock crate LS7 with dyno headers and a Big Stuff 3 controller....
rpm----tq---hp
3000--455--260
3500--467--311
4000--504--383
4500--526--451
5000--529--503
5500--512--537
6000--480--548
6100--472--548
6200--463--547
6300--454--544
6400--445--543
Kurt
rpm----tq---hp
3000--455--260
3500--467--311
4000--504--383
4500--526--451
5000--529--503
5500--512--537
6000--480--548
6100--472--548
6200--463--547
6300--454--544
6400--445--543
Kurt
Last edited by Reckless; Jan 16, 2006 at 07:31 AM.
Originally Posted by 427
We did some power runs last night on a stock crate LS7 with dyno headers and a Big Stuff 3 controller....
rpm----tq---hp
3000--455--260
3500--467--311
4000--504--383
4500--526--451
5000--529--503
5500--512--537
6000--480--548
6100--472--548
6200--463--547
6300--454--544
6400--445--543
Kurt
rpm----tq---hp
3000--455--260
3500--467--311
4000--504--383
4500--526--451
5000--529--503
5500--512--537
6000--480--548
6100--472--548
6200--463--547
6300--454--544
6400--445--543
Kurt
Bill
TECH Regular
Joined: Nov 2004
Posts: 415
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From: Reno, NV
Ohhhh, baby!
Excellent job, Kurt and John and company. Am I excited? WoooHooo!!!
And thanks for sharing your knowledge, and the extra detail items to make this installation simple.
Can't thank you guys enough. Rides in the Ultima at the speedway when we (the GTR and I) come visit...
__________________
-- Scott
'76 Chevy Lifted 3/4 Ton Built 350 4x4
'96 Chevy Impala SS LT1-4L60E Bolt-Ons, Moog, Hotchkis, BMR, Bilstein's
'05 Ultima GTR - 2200# mid-engine with a 548HP LS7. Pix at http://www.ihp.com
Excellent job, Kurt and John and company. Am I excited? WoooHooo!!!
And thanks for sharing your knowledge, and the extra detail items to make this installation simple.
Can't thank you guys enough. Rides in the Ultima at the speedway when we (the GTR and I) come visit...
__________________
-- Scott
'76 Chevy Lifted 3/4 Ton Built 350 4x4
'96 Chevy Impala SS LT1-4L60E Bolt-Ons, Moog, Hotchkis, BMR, Bilstein's
'05 Ultima GTR - 2200# mid-engine with a 548HP LS7. Pix at http://www.ihp.com
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Verdad Gallardo TECH Regular
Joined: Nov 2004
Posts: 415
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From: Reno, NV
Originally Posted by 98blackSS
Scott, you should have Kurt slip in a nice bump stick while he's got it in his hands 
That said, you know how it is...more is better! At least, that is my usual line of thinking regarding HP. So, it's still in the back of my mind to turn this into a fire-breather at some point...maybe six months...maybe two years...
A buddy with a GTR has just about all of the parts now and is starting the build of his twin-turbo LS2 (might be an LS6). He plans on making no less than 900 HP and the turbos are good to 1,300. He's headed for the "Silver State Classic" in May.
Maybe you have heard of the Silver State Classic? It's an open-road, timed race over 90 miles of Nevada highway...with no LEOs (!) except for the race officials. They have a dozen speed classes...all the way up to unlimited. There was a guy there a few years ago with a TT LS1 Ultima GTR. It made 1,300 BHP and had a six-speed trans. He took the car to 229 mph in 5th. Backed it down saying it felt like it was getting light. (Please use crow-bar to remove seat from sphincter)
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Joined: Dec 2001
Posts: 922
Likes: 1
From: Lexington Park, MD
That's cool.. Something you could always do later. I'm sure you'll more than enjoy the power as is.. Can't wait to see it sitting in the GTR.
Kurt, snap some pics of Scott's motor with the BS3 setup if you get time.
Kurt, snap some pics of Scott's motor with the BS3 setup if you get time.
Thread Starter
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From: Clayton, North Carolina
The headers are 34 inch 1 3/4 with merge collecters hooked to a 3inch bullet muffler. Only ran the one dyno set. Timing was 27.5-30.0 during the run, A/F was around 12.5 average.
Kurt
Kurt
Originally Posted by John B
Awesome!!! What are the spec's on the headers? Did you try any different headers? How much timing and what was the A/F at these numbers?
Thanks for the clarification Kurt!
Kurt, did the headers have a "D" port design or round at the port. I've read conflicting stories about what should be used with the "D" port exhaust. Any thoughts you can share here?
Kurt, did the headers have a "D" port design or round at the port. I've read conflicting stories about what should be used with the "D" port exhaust. Any thoughts you can share here?
The LS6 heads have "D" shaped ports too...wont the same headers that fit those heads fit the LS7?
I can tell you that I have tried 2 of the 3 on my new Z06 with very different results. First we made installed the Dynatech C6 LS2 headers and LOST about 4 rwhp due to the D port design needed on the LS7
John Page
Twenty First Century Muscle Cars
Authorized Lingenfelter Performance Dealer
John Page
Twenty First Century Muscle Cars
Authorized Lingenfelter Performance Dealer
