TTI Dyno Day
Yeah, that's a misread. It was 341, not 391. I remember looking at the sheet and thinking the 4 looked a lot like a 9.
Oh, and for the record Steve's 04 GTO is FI, not NA.
I think everyones numbers were just a hair low from what they were expecting, humidity was around 70-75% which i didnt think about untill i looked at the graph.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo True, but the SAE corrected numbers that were provided, takes this into account, right? My numbers were within 5hp of my last dyno pull at TTi that was about 6 months ago. I thought the air was pretty good! If we were running at Bremerton on the Dyno Day, I checked weather conditions and then calculated the DA using baro and humid, and it was like -1500ft. 
Teching In
Joined: Nov 2007
Posts: 0
Likes: 0
From: marysville wa
The flywheel is flexing and moving around..It is a AFT alcohol funny car clutch and it's just to big and heavy.There is only about .050 clearance between the outside of the ring gear and the bellhousing.When the car was built it was the only clutch out there that would hold it.Now there are better,lighter setups out there.
We are going to go from a 164 tooth flywheel to a 142..Then we will have lots of room.
We are going to go from a 164 tooth flywheel to a 142..Then we will have lots of room.
TECH Enthusiast
Joined: Mar 2005
Posts: 701
Likes: 0
From: Arlington, WA
I just took a look at my file and it recorded 50% humidity, 30in barometer, and 52*F...for a total SAE correction factor of .95, which means it had to correct DOWN by 5% from the raw number. It was GREAT air.
I was the first one to dyno that morning at a little after 9 am, an my graph claimed about 73% humidity, so i guess i should've waited till a little later in the day lol--Whats up with Steve's turbo Goat only making 369? did i miss something
It's an original 112 Maggie on an otherwise bone stock ls1. Bone stock numbers on an 04 GTO are around 270/280, so his 370/400 is up 100hp and 120tq with just the standard low boost. I've always heard to expect about a 40% improvement with a Maggie and that's right in the ballpark.
This is the point of the SAE correction. It shouldnt matter, you would have gotten the same numbers.