but seams a little low especially the tq's
Finaly got her dynoed!
Thread Starter
Instructor
Joined: May 2008
Posts: 117
Likes: 0
From: Orange Park Florida
Finaly got her dynoed!
I installed a Magnaflow catback, Halltech Killer Bee and Beehive awhile ago along with a 160 degree thermostat. It seemed to run OK but my fuel mileage has dropped. I had it dynoed and tuned today and here are the numbers:
Baseline 383.2HP 335.4TQ AF 10.3
After tune 390.5HP 379.5TQ AF 13.0
We also removed the dreaded skip shift and reset the fans.
I am pretty happy with the numbers.
Baseline 383.2HP 335.4TQ AF 10.3
After tune 390.5HP 379.5TQ AF 13.0
We also removed the dreaded skip shift and reset the fans.
I am pretty happy with the numbers.
Racer
Joined: Jun 2009
Posts: 298
Likes: 58
From: Apache Junction AZ
I installed a Magnaflow catback, Halltech Killer Bee and Beehive awhile ago along with a 160 degree thermostat. It seemed to run OK but my fuel mileage has dropped. I had it dynoed and tuned today and here are the numbers:
Baseline 383.2HP 335.4TQ AF 10.3
After tune 390.5HP 379.5TQ AF 13.0
We also removed the dreaded skip shift and reset the fans.
I am pretty happy with the numbers.
Baseline 383.2HP 335.4TQ AF 10.3
After tune 390.5HP 379.5TQ AF 13.0
We also removed the dreaded skip shift and reset the fans.
I am pretty happy with the numbers.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
I installed a Magnaflow catback, Halltech Killer Bee and Beehive awhile ago along with a 160 degree thermostat. It seemed to run OK but my fuel mileage has dropped. I had it dynoed and tuned today and here are the numbers:
Baseline 383.2HP 335.4TQ AF 10.3
After tune 390.5HP 379.5TQ AF 13.0
We also removed the dreaded skip shift and reset the fans.
I am pretty happy with the numbers.
Baseline 383.2HP 335.4TQ AF 10.3
After tune 390.5HP 379.5TQ AF 13.0
We also removed the dreaded skip shift and reset the fans.
I am pretty happy with the numbers.
Thread Starter
Instructor
Joined: May 2008
Posts: 117
Likes: 0
From: Orange Park Florida
The baseline was done after adding the Varam and Magnaflow and it was running pretty rich. Tuning was done with HP tuners and my tuner is fairly conservative. The pulls were also done in Florida with high temps and extremely high humidity.
They may not be the best numbers I have heard but they seem reasonable to me.
They may not be the best numbers I have heard but they seem reasonable to me.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
The baseline was done after adding the Varam and Magnaflow and it was running pretty rich. Tuning was done with HP tuners and my tuner is fairly conservative. The pulls were also done in Florida with high temps and extremely high humidity.
They may not be the best numbers I have heard but they seem reasonable to me.
They may not be the best numbers I have heard but they seem reasonable to me.
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Joined: Nov 2007
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From: Bethesda MD
390 is fine unless others are dynoing over 400 at the same dyno.
I see you are at 13.0. Did you try a slighter richer A/F and a little more timing? I've seen several tuners post that the LS3 likes to be a bit richer with more timing.
I see you are at 13.0. Did you try a slighter richer A/F and a little more timing? I've seen several tuners post that the LS3 likes to be a bit richer with more timing.
Man I need a dyno tune
Racer
Joined: Jun 2009
Posts: 298
Likes: 58
From: Apache Junction AZ
You tweak the fuel & timing to whatever makes the motor happier. On mine, more fuel & more timing produced slightly less power & occasional ping. Ended up with some ign. advance & a leaner mid-range fuel to end up with 403RWHP & 400# tq. with 13/1 AF. Any other fuel or ign. adjustments lost ground. Every motor can be different.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
With a m6 401/401 would be the norm. Looks like the tune is still lacking, maybe low octane gas? These numbers will vary + or- 10, so he's still in the normal range, just he's on the low side and we all want to on the high side.
Thread Starter
Instructor
Joined: May 2008
Posts: 117
Likes: 0
From: Orange Park Florida
I tend to be pretty conservative with my cars. I don't race anymore so I am more interested in overall performance, economy, and longevity. A stock baseline was never done. The 335TQ was after adding the mods with a pig rich AF. I am sure the stock TQ #'s would have been higher.
Past experience has shown me that there can be a difference in dynos even the same make and model operating down the street from each other. I might add long tubes at some point and it will be interesting to see the gains from that mod using the same tuner and dyno.
Past experience has shown me that there can be a difference in dynos even the same make and model operating down the street from each other. I might add long tubes at some point and it will be interesting to see the gains from that mod using the same tuner and dyno.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
I tend to be pretty conservative with my cars. I don't race anymore so I am more interested in overall performance, economy, and longevity. A stock baseline was never done. The 335TQ was after adding the mods with a pig rich AF. I am sure the stock TQ #'s would have been higher.
Past experience has shown me that there can be a difference in dynos even the same make and model operating down the street from each other. I might add long tubes at some point and it will be interesting to see the gains from that mod using the same tuner and dyno.
Past experience has shown me that there can be a difference in dynos even the same make and model operating down the street from each other. I might add long tubes at some point and it will be interesting to see the gains from that mod using the same tuner and dyno.
Last edited by BOB EAGAN; Sep 4, 2009 at 09:42 AM.
