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.
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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...