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My Dyno Run

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Old Jan 18, 2007 | 10:29 AM
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Default My Dyno Run




Not to bad I don't think. They felt too that the numbers were a little conservative (maybe 5-7 more?) and also in their professional opinion (which they were very good to work with) at 50 mph with the Vararam I could be at 340 HP. They seemed like very straight shooters there and no reason to BS me, I am doing all of my own work.

Everyone in the shop was surprised at the numbers, especailly the torque numbers. I kind of felt that was where I was close to and they were skeptical when I said my guess before the run, which is understandable as I am sure a lot of folks come in there with unrealistic expectations. The torque numbers surprised me a lot though.

Mods: shorty headers, X-pipe, custom exhaust with walker bullets - less cats, vararam and I shed 33 pounds in weight too.

Investment: $931.00 and money left over for shocks, sways, shifter, sound system, hps brakes and rotors. The car is just a blast to drive.

Future mods: LS6 intake, cam, heads, ported TB, and learn how to do my own tune.



Thanks

Brad

Last edited by Brad@RevXtremeAutoSports; Jan 18, 2007 at 01:41 PM.
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Old Jan 18, 2007 | 10:54 AM
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Good #s. Most stock C5s are 300-310 rwhp.
Did you get a sheet with RPM instead of MPH?

They felt too that the numbers were a little conservative (maybe 5-7 more?)
Don't understand this. The #s are what the #s are.

Vararam will NOT get you 20 rwhp even at 150 mph. Sorry.
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Old Jan 18, 2007 | 01:08 PM
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Originally Posted by Phantom2007
Good #s. Most stock C5s are 300-310 rwhp.
Did you get a sheet with RPM instead of MPH?

Don't understand this. The #s are what the #s are.

Vararam will NOT get you 20 rwhp even at 150 mph. Sorry.
Tell that to my old 2000 that dynoed at 325 hp with ONLY a vararam and a predator tune(which did nothing).
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Old Jan 18, 2007 | 03:43 PM
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Numbers looks good for a 98 LS1.
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Old Jan 18, 2007 | 03:57 PM
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Originally Posted by gpracer1
Tell that to my old 2000 that dynoed at 325 hp with ONLY a vararam and a predator tune(which did nothing).
Vararam adds NOTHING on the Dyno as the design supposedly gets added power form RAM effect at speed (unless the Dyno was in a 100mph wind tunnel) They always state this when asked about Dyno #s with the Vararam.
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Old Jan 18, 2007 | 05:34 PM
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Actually, you are pulling in lets say 70 degree air instead of 180 degree underhood air. On top of that, I think the vararam has a bigger opening and better flowing filter even at 0 mph.
That alone is good for 20.
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Old Jan 18, 2007 | 09:58 PM
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Originally Posted by gpracer1
Actually, you are pulling in lets say 70 degree air instead of 180 degree underhood air. On top of that, I think the vararam has a bigger opening and better flowing filter even at 0 mph.
That alone is good for 20.
Uh... Dyno Pulls almost always done HOOD OPEN so the under hood temp is not a factor.

The air flow to the air box in all intakes is through the front so when the car is moving the cooler outside air is flowing into the intake NOT underhood high temp.

On a stock motor you can do any intake you want including ZO6 airbox lid and the most you'll get is 3-5 rwhp.
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Old Jan 18, 2007 | 10:02 PM
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Are you kidding me?
I did a vararam on my last car, and on my 01 I did a Honker. Both made about 23 hp.

Where does this cold air come in on a stock vette?
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Old Jan 18, 2007 | 10:09 PM
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Stock Vette. Look down over the intake infront of the radiator and you see several opening to daylight. That;s where the air comes from.

Vararam, Honker, NO DYNO TUNE 23 HP NO WAY.
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Old Jan 18, 2007 | 10:15 PM
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Originally Posted by Phantom2007
Stock Vette. Look down over the intake infront of the radiator and you see several opening to daylight. That;s where the air comes from.

Vararam, Honker, NO DYNO TUNE 23 HP NO WAY.
For what its worth, with just a Vortex ram on my 99 LS1 prior to other mods, it put down 308. My tuner old me LS1's are all over the board out of the factory HP wise - some 300 stock and some 325.
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Old Jan 18, 2007 | 11:15 PM
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Originally Posted by gpracer1
Actually, you are pulling in lets say 70 degree air instead of 180 degree underhood air. On top of that, I think the vararam has a bigger opening and better flowing filter even at 0 mph.
That alone is good for 20.
Put a hood seal on it and you'll get another 20. That and some 3" chrome exhaust tips and you'll be up right up there with the Z06's.
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Old Jan 18, 2007 | 11:42 PM
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Nice Brad

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Old Jan 19, 2007 | 03:33 AM
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Nice Numbers. Where in Tampa you at bro? I live across from St. Pete Derby across Gandy bridge.
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Old Jan 19, 2007 | 09:51 AM
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My torque surprised me as well - more than a stock 2002 Z06! (See sig)
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Old Jan 19, 2007 | 11:56 AM
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Nice numbers Brad.

Last edited by dark_phantom; Jan 19, 2007 at 01:22 PM.
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Old Jan 19, 2007 | 12:29 PM
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Originally Posted by Phantom2007
Stock Vette. Look down over the intake infront of the radiator and you see several opening to daylight. That;s where the air comes from.

Vararam, Honker, NO DYNO TUNE 23 HP NO WAY.
Sorry, not true. The stock C5 inlet is restrictive, partly because GM was forced to design the intake to work under severe conditions, like driving through 6" deep standing water at speed. Anyone who has modded these cars over the years knows this as general information.

Any of the better quality aftermarket intakes, from Blackwing,Halltech,Hurricane,Vortex Rammer,Vararam to the Honker will show 10-20 rwhp over the stock intake, especially with a tune.
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Old Jan 19, 2007 | 02:54 PM
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Originally Posted by Brad@thecorvetteshow
Not to bad I don't think. They felt too that the numbers were a little conservative (maybe 5-7 more?)
I wonder if your shorties are limiting you? Just did mine last week ('01) and got 333HP/348TQ SAE with just a Halltech and Borla's. Don (Slohawk) thought I'd get several more horsepower than that, except my plugs are fouled (62K miles). I was planning to change them when I finally get around to installing my LG LT's. Should be interesting to see what numbers with new plugs/wires and the LT's installed!!
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To My Dyno Run

Old Jan 19, 2007 | 03:21 PM
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Originally Posted by SeaLawyer
I wonder if your shorties are limiting you? Just did mine last week ('01) and got 333HP/348TQ SAE with just a Halltech and Borla's. Don (Slohawk) thought I'd get several more horsepower than that, except my plugs are fouled (62K miles). I was planning to change them when I finally get around to installing my LG LT's. Should be interesting to see what numbers with new plugs/wires and the LT's installed!!
According to Phantom2007, thats impossible.

Im putting on LG LTstreet system on this weekend myself, jet hot coated from end to end.
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Old Jan 19, 2007 | 04:36 PM
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Originally Posted by gpracer1
According to Phantom2007, thats impossible.

The tune is the Key word here. No Intake alone is going to get you 20+ hp.

Im putting on LG LTstreet system on this weekend myself, jet hot coated from end to end.
Now that's good idea. We're putting LG Streets on my son's FRC this weekend as well. Got them for the $895 deal with the X and Free shipping. Polished front to back. They really look good for the $.

He's putting down 340 with dual cone intake, L6 intake manifold and Corsa Catback with a tune.
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Old Jan 19, 2007 | 04:52 PM
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They looked so good I almost didnt want to jet hot coat them. But according to jet hot, the coating will make some power also. Between 2-3% . Also should keep the tunnel and engine bay and related parts from getting so hot in the AZ heat.
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