Dyno Results are In!
Thread Starter
Intermediate
Joined: Jun 2005
Posts: 25
Likes: 0
From: Lithia Florida
Dyno Results are In!
Went in today for a Dyno Tune by RevXtreme in Tampa, FL-I have mixed feelings about my results.
I did not get a base line before mods...
Here are the Mods
Vortex Rammer Cold Air Induction, LS6 Intake manifold, Dynotech Long Tube header, Hi-flow cats & X-pipe, Corsa Indy exhaust, Thunder Racing TR-224-112 cam, Fidanza Alum Flywheel and SPEC Stage 3 clutch.
After breaking in the new clutch, I went in for the tune! The results were 369.5 rwhp and 361.3 ft/lbs of torque. The car runs so much better than before, I guess for the money spent I expected more power. The car is smooth throughout the rpm range, idles great and is very responsive. but I did not acheive my goal of 400 rwhp.
any thoughts on what happened ? did I expect to much? is the results typical for the parts chosen?
Please let me know what you think?
I did not get a base line before mods...
Here are the ModsVortex Rammer Cold Air Induction, LS6 Intake manifold, Dynotech Long Tube header, Hi-flow cats & X-pipe, Corsa Indy exhaust, Thunder Racing TR-224-112 cam, Fidanza Alum Flywheel and SPEC Stage 3 clutch.
After breaking in the new clutch, I went in for the tune! The results were 369.5 rwhp and 361.3 ft/lbs of torque. The car runs so much better than before, I guess for the money spent I expected more power. The car is smooth throughout the rpm range, idles great and is very responsive. but I did not acheive my goal of 400 rwhp.
any thoughts on what happened ? did I expect to much? is the results typical for the parts chosen?
Please let me know what you think?
Race Director
Joined: Dec 2003
Posts: 12,599
Likes: 1
From: Texas
I think that is about right. I had work done and was a little let down too. Like you, for the money spent I expected more power.
Complete cam specs would be good so we could get an idea of the power it should produce. I went with MTI's G1 cam 228 232 .588 .575 113. It was larger than the stealth I wanted to go with so off the bat I was expecting bigger numbers.
If you are interested I'll post up what mods I did and what I pulled, its getting late though and the bed is calling me, I can't pass up my "window" or I may never get to sleep.
Complete cam specs would be good so we could get an idea of the power it should produce. I went with MTI's G1 cam 228 232 .588 .575 113. It was larger than the stealth I wanted to go with so off the bat I was expecting bigger numbers.
If you are interested I'll post up what mods I did and what I pulled, its getting late though and the bed is calling me, I can't pass up my "window" or I may never get to sleep.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I also think you are just about where you should be. About 330 HP without the cam, but with the headers and then 30 or so more with that cam. EG went with a much bigger cam and was at 384 HP so I think your goal of 400 cam only may have been too much. A set of AFR's will likely put you to your goal.
Can you post your dyno sheet with the AFR?
Can you post your dyno sheet with the AFR?
Team Owner
Joined: Sep 1999
Posts: 20,054
Likes: 44
From: Swansea IL
Here's a base line for you, I just dyno'd my 03 Z06 the only mods I have are a Blackwing, Bassani x-pipe and B&B PRT's:
I'm out looking for a tuner to lean me out some and hope to be at 375RWHP with just bolt on's.
Tom
I'm out looking for a tuner to lean me out some and hope to be at 375RWHP with just bolt on's.
Tom
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Melting Slicks
Joined: Nov 2003
Posts: 2,555
Likes: 5
From: Fredericksburg VA
On my 99 LS1 I had LGM headers, LS6 intake, Shaner Ported Tbody, custom 3inch exhaust with SLP cats and a custom Xpipe back to some borla Stingers. We used a twin cone Volant CAI and Jeff Creech custom tuned the PCM.
My car was making a solid 335HP and 353Ft.# torque on a Road race tune.
My new setup has some ported heads and larger valves (2.02/1.57) and a thunder racing 224/224 cam package. We're hoping for 400WHP.
Mike
My car was making a solid 335HP and 353Ft.# torque on a Road race tune.
My new setup has some ported heads and larger valves (2.02/1.57) and a thunder racing 224/224 cam package. We're hoping for 400WHP.
Mike
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by VetteGuy1999
Went in today for a Dyno Tune by RevXtreme in Tampa, FL-I have mixed feelings about my results.
I did not get a base line before mods... Here are the Mods
Vortex Rammer Cold Air Induction, LS6 Intake manifold, Dynotech Long Tube header, Hi-flow cats & X-pipe, Corsa Indy exhaust, Thunder Racing TR-224-112 cam, Fidanza Alum Flywheel and SPEC Stage 3 clutch.
After breaking in the new clutch, I went in for the tune! The results were 369.5 rwhp and 361.3 ft/lbs of torque. The car runs so much better than before, I guess for the money spent I expected more power. The car is smooth throughout the rpm range, idles great and is very responsive. but I did not acheive my goal of 400 rwhp.
any thoughts on what happened ? did I expect to much? is the results typical for the parts chosen?
Please let me know what you think?
I did not get a base line before mods...
Here are the ModsVortex Rammer Cold Air Induction, LS6 Intake manifold, Dynotech Long Tube header, Hi-flow cats & X-pipe, Corsa Indy exhaust, Thunder Racing TR-224-112 cam, Fidanza Alum Flywheel and SPEC Stage 3 clutch.
After breaking in the new clutch, I went in for the tune! The results were 369.5 rwhp and 361.3 ft/lbs of torque. The car runs so much better than before, I guess for the money spent I expected more power. The car is smooth throughout the rpm range, idles great and is very responsive. but I did not acheive my goal of 400 rwhp.
any thoughts on what happened ? did I expect to much? is the results typical for the parts chosen?
Please let me know what you think?
Ed
Pro
Joined: Aug 2004
Posts: 575
Likes: 0
From: Richmond Hill Ontario
First basic rule. Dyno the car before doing any mods. I, myself am guilty and have learned my lesson. Without this, you have no baseline for comparative purposes.
Second, a stock C5 6 speed LS1 will make 300 to 310rwhp in most cases. Based on your mods I'd say you're on target. Did you get a baseline pull with your mods before tuning? I'll bet that the tune didn't make that big of a difference. That's because you're not really getting that much more air in the engine, even with the cam. The heads are the key to making power (being matched to the right cam). When you get more air in the cylinders this requires more fuel and that's when you make power. Put a good set of heads on your engine (even ported LS1's and you'll probably get your 400rwhp.
Take a look on some of the forum vendors sites (look under tuners) to see the packages they have and the power levels achieved and you'll get a better understanding of what's required. The engine is basically an air pump so the more air you can feed it, the more power it can make (adding more fuel). There are limitations for a naturally aspirated motor based on it's cubic inches however.
Hope this helped.
Second, a stock C5 6 speed LS1 will make 300 to 310rwhp in most cases. Based on your mods I'd say you're on target. Did you get a baseline pull with your mods before tuning? I'll bet that the tune didn't make that big of a difference. That's because you're not really getting that much more air in the engine, even with the cam. The heads are the key to making power (being matched to the right cam). When you get more air in the cylinders this requires more fuel and that's when you make power. Put a good set of heads on your engine (even ported LS1's and you'll probably get your 400rwhp.
Take a look on some of the forum vendors sites (look under tuners) to see the packages they have and the power levels achieved and you'll get a better understanding of what's required. The engine is basically an air pump so the more air you can feed it, the more power it can make (adding more fuel). There are limitations for a naturally aspirated motor based on it's cubic inches however.
Hope this helped.
Thread Starter
Intermediate
Joined: Jun 2005
Posts: 25
Likes: 0
From: Lithia Florida
I am simply learning alot as I go thanks to all here at the forum. I scanned my DynoJet sheet, but I can't figure out how to get it on the screen, SAE corrected was not explained to me, although the sheet reads as follows
Run type: RO Run Conditions: 107.05 degrees F , 30.09 in-Hg, Humidity 7% SAE: 1.00
Max Power 368.52 Max Torque 362.26
the sheet went to my galleries? where ever that is?
Run type: RO Run Conditions: 107.05 degrees F , 30.09 in-Hg, Humidity 7% SAE: 1.00
Max Power 368.52 Max Torque 362.26
the sheet went to my galleries? where ever that is?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Originally Posted by VetteGuy1999
the sheet went to my galleries? where ever that is?
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Something not to forget here is "power under the curve". Big cams can make big (peak) numbers. However, you almost always sacrifice the low end, for those bigger numnbers over a relatively narrow rpm band. Drivability, and torque, is generally sacrificed. Note that on the high horsepower cars, the max torque number is almost always significantly below the power number, and occurs fairly late (compared to stock) in the rpm band. It kind of depends on how and where you drive. A significant increase "under the curve" will enable the car to feel, drive, and accelerate very strongly all the way through the rpm band, rather than always hanging out at 6500 rpm (not that that's not fun also! 
). It really is too bad you didn't get a baseline on your car. I would suspect that you raised your entire curve. Don't think you failed because you didn't get some huge number. And don't forget that SAE correction and smoothing I mentioned before. Without those, the spikes are what is read as peak power and torque numbers. Those spikes are not what you are driving with. Your numbers are very much in line for where they should be with what you've done. Enjoy that beast! 
). It really is too bad you didn't get a baseline on your car. I would suspect that you raised your entire curve. Don't think you failed because you didn't get some huge number. And don't forget that SAE correction and smoothing I mentioned before. Without those, the spikes are what is read as peak power and torque numbers. Those spikes are not what you are driving with. Your numbers are very much in line for where they should be with what you've done. Enjoy that beast!
Drifting
Joined: Sep 2002
Posts: 1,947
Likes: 0
From: Howell MI.
Need Heads
volumetric efficiency is all in the heads
I have ETP heads and a smaller cam
5.3 heads small
Now ET Performance has 11 degree heads that flow 30cfm better than mine
Heads should be good for 30-40 rwhp over the stock LS1 head
I have ETP heads and a smaller cam
5.3 heads small
Now ET Performance has 11 degree heads that flow 30cfm better than mine
Heads should be good for 30-40 rwhp over the stock LS1 head
Last edited by blktie8; Sep 12, 2005 at 12:13 PM.