First dyno session today
Thread Starter
Racer
Joined: Feb 2006
Posts: 273
Likes: 1
From: Columbia Maryland
First dyno session today
Went to a local car show and they had a dyno there and I gave it a shot.
I have dynatech longtubes, slp high flow cats, bigger H pipe, corsa indy exhuast, and a vararam.
Seemed low to me...
I have dynatech longtubes, slp high flow cats, bigger H pipe, corsa indy exhuast, and a vararam.
Seemed low to me...
Melting Slicks
Joined: Nov 2002
Posts: 2,884
Likes: 260
From: Jamison Pa
St. Jude Donor '11-'25
Looks Good to Me!
It looks good to me. A stock C5 will dyno at about 300 RWHP.
I met a guy at a car show today that swore his Vararam added 50 HP. I tried to explain that it was marketing hype, but he instisted.
How does it run? I'll bet it pulls pretty good!
Bob K.
I met a guy at a car show today that swore his Vararam added 50 HP. I tried to explain that it was marketing hype, but he instisted.
How does it run? I'll bet it pulls pretty good!
Bob K.
Thread Starter
Racer
Joined: Feb 2006
Posts: 273
Likes: 1
From: Columbia Maryland
To do:
Get rid of rattles
Get tune and make sure they remove the rear O2's
Get the exhuast tips straight again (they are looking a bit crazy at the moment)
Thread Starter
Racer
Joined: Feb 2006
Posts: 273
Likes: 1
From: Columbia Maryland
Burning Brakes
Joined: Mar 2007
Posts: 947
Likes: 1
From: Lower Lake Ca
Had mine dyno'd Saturday. It has LT's, stock cats, X-pipe and straight custom cat-backs with a Vortech cold air ram...
324/335 baseline
332/346 tuned
The shop had dyno'd a stock 01 LS1 at 302 HP on a previous date.
324/335 baseline
332/346 tuned
The shop had dyno'd a stock 01 LS1 at 302 HP on a previous date.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Apr 2003
Posts: 3,968
Likes: 0
From: Biloxi MS Theres something happenin' here, What it is ain't exactly clear.....
Had mine dyno'd a few months ago:
No Tune, Vararam, orig. plugs/wires, stock headers and H pipe, Borla cat back, lots of visual mods..
No Tune, Vararam, orig. plugs/wires, stock headers and H pipe, Borla cat back, lots of visual mods..
Safety Car
Joined: Apr 2003
Posts: 3,968
Likes: 0
From: Biloxi MS Theres something happenin' here, What it is ain't exactly clear.....
I've now added Long Tube Headers, Hi-Flow Cats, and an Xpipe. (and 160 degree Tstat is on its way).
Going back for a tune and another dyno session soon.
Going back for a tune and another dyno session soon.
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
I'll post up afterwards and let you evperts analyse the sheet...
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Look and my numbers in my sig, I still have stock maifolds and cats along with the stock crapy LS1 intake manifold. Those numbers kinda sound low but the track tells all
Last edited by Corvette Don; Apr 30, 2007 at 03:29 AM.
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
My SAE numbers w/Ebay Headers and tune are 337.5/34o.2
Last edited by tstar; Apr 30, 2007 at 03:47 AM.
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
Each dyno and car is different, mine was on a DynoJet (plus I have a 2000 and my cam has a tad more lift than the others, dont know if this really helps or not), but yea overall I was happy with those #'s, I know its got to be right cause if I would of got a 2.0 60' at the track I ould have ran about a 12.8 right about where it should be, but I basically had a guy at a muffler shop (this is the 5th car I have taken to him for exhaust work he is friggin awsome) I had him cut the mufflers out (he cut after the axle) and weld in straight pipes with some bad *** dual tips ($160 for the both of them), sounds like a damn Nascar car WOT, I may have to go to TI exhaust after the headers and sell the ones I have now. Prob the best mod I have done for $200.
Last edited by Corvette Don; Apr 30, 2007 at 05:13 AM.
Le Mans Master
Joined: Oct 2004
Posts: 9,369
Likes: 4
From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
Racer
Joined: Mar 2007
Posts: 436
Likes: 0
From: copperas cove tx
I got TPIS long tubes, no cats, and corsa indy. Vararam intake and the smooth coupler. I am at 329 rwhp and 344rwtq. My best time at the track so far is 13.201..... I seem to be shifting too early, I just leave it in drive and go.
Le Mans Master
Joined: Oct 2004
Posts: 9,369
Likes: 4
From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
Pro
Joined: Jan 2005
Posts: 559
Likes: 1
From: Lenexa Kansas
If you are un-tuned, I would think you'd see another 10 easily with a tune. I ran my MN6 99 with Vararam and Z06 Ti with a best of 317 (also hit 305 and 310) at the wheel. And I know the dyno isn't an ego-booster, as my head/cam package registered in tuned at 410 on the same dyno, which is on the low-end for that setup.
Considering stock 99's run somewhere between 300 and 305, you have a good 23-28whp gain, and will most likely get another 10 with a tune. I think you are on target...
Considering stock 99's run somewhere between 300 and 305, you have a good 23-28whp gain, and will most likely get another 10 with a tune. I think you are on target...