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Old 03-23-2010, 09:52 AM   #1
Meister@Torq

 
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L99 Custom Tuning Results - Tune Only

We had not yet posted results of a tune only L99 and finally got around to getting the dyno charts up. Peak gains were 16rwhp and 23rwtq.

The most important numbers throughout the curve show gains of 25rwhp and 26rwtq. These power increases combined with our transmission tuning totally transform the car and make it much more enjoyable to drive. I also feel that if given some more dyno time we could increase the peak numbers to gains of 20+rwhp and some more torque up top.

With all of our custom tunes, each customer is entitled to FREE TUNES FOR LIFE. When we revise our tunes each customer is notified of these updates and sent out the new tune at no additional costs.


Notice the massive increases in torque and HP right from below 2000rpm. This is power you will feel and really make a difference. These gains are typical with our mail order tuning.
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Old 03-23-2010, 10:03 AM   #2
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Old 03-23-2010, 10:18 AM   #3
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What kind of results are you getting out of the LS3?
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Old 03-23-2010, 10:26 AM   #4
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Quote:
Originally Posted by victoryred1ss View Post
What kind of results are you getting out of the LS3?


We have a new improved tune, I will try and get the results up shortly. Peak gains are 10rwhp but more under the curve. We also offer improved fuel economy and throttle response.
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Old 03-23-2010, 12:16 PM   #5
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what adjustments were made tune-wise? Were cam phaser advance/retard adjustments made? Or just fuel/spark?
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Old 03-23-2010, 12:22 PM   #6
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For the L99, it looks like stock 300 HP/ 300 torque, and tuned 320 HP/ 320 torque.
The L99 should be at 325 HP stock/ 325 torque.
you need to do a fuse pull!!!
mine went from 305/300 to 327/342 with tune, then did fuse pull, probably at 350/360
now, soon to be back to dyno with vararam CAI to retest, hoping for 375/ 390.
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Old 03-23-2010, 05:18 PM   #7
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That has got to be one of the worst L99 dyno HP ratings i've seen. Even tuned it's below most untuned L99s.
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Old 03-24-2010, 12:25 AM   #8
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Quote:
Originally Posted by 1camaro70 View Post
For the L99, it looks like stock 300 HP/ 300 torque, and tuned 320 HP/ 320 torque.
The L99 should be at 325 HP stock/ 325 torque.
you need to do a fuse pull!!!
mine went from 305/300 to 327/342 with tune, then did fuse pull, probably at 350/360
now, soon to be back to dyno with vararam CAI to retest, hoping for 375/ 390.
I also gained about 20 peak hp and about 30 hp in midrange after a dyno tune. Dynos read differently, you just want to look at the gains. Also, I hope you're not expecting to make another 20 hp doing a fuse pull after a dyno tune. Not going to happen. I bet 340 to 345 with the VR unit, sae.

Last edited by NHSS; 03-24-2010 at 12:41 AM.
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Old 03-24-2010, 07:07 AM   #9
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All dyno's read differently. We have an EDDY CURRENT loaded dyno unlike an inertia only dynojet which most use thus it reads MUCH lower. The gains are what counts

In our tune we adjust fueling, spark, VVT, transmission and other parameters. We mostly remap the entire ECU
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Old 03-24-2010, 07:44 AM   #10
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the seat of the pants dyno felt MORE change after the fuse pull, so if stock L99 is 325/325 on high octane table and mine was 305/300 on low octane table I noticed a HUGE difference in power gain, you must take my word on it, no one can run to the dyno after every change, I am just trying to be informative, On my local dyno I saw 22HP and 42 torque on the low octane table, and was about to SELL it because it still felt SLOW, but do the fuse pull and It's a keeper, would not sell now.
If you read all the threads on dyno tests you know that each dyno seams to read differently, so if Meister does another modification on same car and same dyno, we get a good reading of the effect of the modification, MY POINT was IN MY CASE the fuse pull made a WORLD of difference, and Meister should check that car, do the pull and re-dyno, just to confirm if it needed to get on high octane table, then we all know that his dyno just reads low compared to averages of L99's on this site that are 325/325 verses his dyno at 300/300.
And I LIKE lifetime offer for tune updates.

Last edited by 1camaro70; 05-05-2010 at 09:30 AM.
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Old 03-24-2010, 02:48 PM   #11
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Quote:
Originally Posted by 1camaro70 View Post
I will retest on same dyno once the Vararam is installed and the computer resets itself (100miles) temps outside will be different, humidity will be different, even though I gained 22 HP and 42 torque with tune, the seat of the pants dyno felt MORE change after the fuse pull, so if stock L99 is 325/325 on high octane table and mine was 305/300 on low octane table and at 327/342 after tune I noticed a HUGE difference in power gain, you must take my word on it, no one can run to the dyno after every change, I am just trying to be informative, On my local dyno I saw 22HP and 42 torque on the low octane table, and was about to SELL it because it still felt SLOW, but do the fuse pull and It's a keeper, would not sell now.
If you read all the threads on dyno tests you know that each dyno seams to read differently, so if Meister does another modification on same car and same dyno, we get a good reading of the effect of the modification, MY POINT was IN MY CASE the fuse pull made a WORLD of difference, and Meister should check that car, do the pull and re-dyno, just to confirm if it needed to get on high octane table, then we all know that his dyno just reads low compared to averages of L99's on this site that are 325/325 verses his dyno at 300/300.
And I LIKE lifetime offer for tune updates.
We already know our dyno reads low. Our shop care made 470 on our machine and 497 on a dynojet. I have been using a Mustang Dyno for 7 years so this is not something new to me.

The fuse pull simply clears the keep alive memory. The car has run premium fuel its entire life and we did a before/after from how the car rolled into the shop. If it has run like this its whole life and brought into the shop then this is real world testing of actual gain. Are you going to go driving the car on the street in stock trim and start pulling fuses?
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Old 03-24-2010, 03:20 PM   #12
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Are you going to go driving the car on the street in stock trim and start pulling fuses?

YES, if it went to the low octane table, it will not go back to high octane table by itself,
check out the sticky with 50+ pages of discussion.

The only low octane in mine was from dealer fillup when new, but no one knew about the low/ high octane problem back then, and after 3500 miles of driving it did not reset.

If you can only get 220HP with your tune, camaro5 members should stay away.

Amazing how you comment about a LOW HP WITH TUNE, and bring up a possible cause, well known in camaro5, as it started here, and people attack you.

Last edited by 1camaro70; 05-05-2010 at 09:29 AM.
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Old 03-24-2010, 04:08 PM   #13
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If a customer comes in for a supercharger install and has 87 octane in the tank are you wanting us to drain it, put in 93 octane and pull the fuse to reset the cam and dyno it because the supercharger setup will be tuned with 93 octane?

I have done like 4 L99's all stock and they all make within 10hp of each other. I will put our tunes up against any tune any day of the week.

There is a knock learn factor so overtime the PCM will learn the new values and end up being close to the high octane table. It will not be stuck on the low octane table forever. The Camaro is a premium fuel car and should not come with 87 from the dealer anyway. The ECM will end up using the high octane table or 99% of it overtime.

Last edited by Meister@Torq; 03-24-2010 at 04:21 PM.
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Old 03-24-2010, 06:40 PM   #14
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THE COMPUTER WILL NOT RESET ITSELF, form low octane table to high octane table.

Thousands of camaro5 members have read about it, Scott found out from GM engineers.

unless new updates to the computer have been made, which there is no evidence of, the V8, L99 computer will REMAIN on low octane table FOREVER without fuse pull.

How do work on L99 tunes without knowing that?

the guy who comes in wanting a supercharger and is using 87 octane, might as well have gotten the V6.
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