hopefully can do some lg super pro long tubes soon.
pre/post LGM tune numbers
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
pre/post LGM tune numbers
just took my 08 coupe to LGM for a dyno tune. i was VERY skeptical about how much power you could pick up on a car like mine that had basically nothing but a halltech and a ported TB.
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
Drifting
Joined: Jun 2002
Posts: 1,682
Likes: 3
just took my 08 coupe to LGM for a dyno tune. i was VERY skeptical about how much power you could pick up on a car like mine that had basically nothing but a halltech and a ported TB.
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
Congrats!!!! Get a cam in that thing so we can match them up!!!! Nice numbers!!!!!!
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Drifting
Joined: Jun 2002
Posts: 1,682
Likes: 3
Lg has better midrange, but Kooks and AR excel on the top end where YOU will be racing....
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
For reasons i would rather not mention, AR is not an option.. Kooks are good but from what i have seen from several ls3 + BIG cam dynos dont offer anything over the LGM headers.. plus the facth for what my price is to purchase and install the LGM headers, i would be a fool to not jump on them. LGM is local, and any issues i have with the product or fitment( which i dont expect to have) i can just drive over to them. Cant say the same about AR or kooks.
Melting Slicks
Joined: May 2007
Posts: 2,415
Likes: 154
just took my 08 coupe to LGM for a dyno tune. i was VERY skeptical about how much power you could pick up on a car like mine that had basically nothing but a halltech and a ported TB.
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
Burning Brakes
Joined: Jan 2005
Posts: 941
Likes: 38
From: Franklin Lakes, NJ
2 degrees ? I agree there would be some variation, but I would think there would be a little more allowance than that. I could see 10deg oil temp being worth 2hp or something like that.
Melting Slicks
Joined: May 2007
Posts: 2,415
Likes: 154
i have seen 18 HP with 20 degrees difference. it take a lot of HP to turn the oil pump and when the oil is cold it take a lot more. a favorite trick of tuners is to do the first test cold then the after tune test hot to show a greater HP increase
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
first dyno was straight off the street. so unless my oil temp was low after a 30 minute freeway beating of the car... i doubt that was it.plus. the car did 4 back to back pulls at 398.. and then consistantly raised in HP as they tuned.
Burning Brakes
Joined: Jan 2005
Posts: 941
Likes: 38
From: Franklin Lakes, NJ
Sounds like a worthwhile test for someone to document further. Certainly seems like what you saw was worst case.
In any event, I suppose it is fair to say that the "accurate" hp is with warmed up oil. i.e., there may be inconsistency and comparison problems, but one can't really point at an end result and question it as inflated due to high oil temps.
Instructor
Joined: Nov 2007
Posts: 136
Likes: 0
From: Greenville SC
just took my 08 coupe to LGM for a dyno tune. i was VERY skeptical about how much power you could pick up on a car like mine that had basically nothing but a halltech and a ported TB.
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
let the car cool and dynoed..put down 398/386.. I thought that wasnt bad. Then the tuning started.
after a dyno and several back to back pulls the car put down 414/398 consistantly.. i was very pleased that for just a tune i picked up 16 rwhp...
thanks LGM!!
Click here for dyno graph
But I guess thats why they say "got to pay to play"
I was thinking about the same mods but if Im going to lose my warranty
might as well get a supercharger to make it worth my while.
Good luck with any future mods.
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
I hope the loss of your entire powertrain warranty is worth 16hp. But I guess thats why they say "got to pay to play" I was thinking about the same mods but if Im going to lose my warranty might as well get a supercharger to make it worth my while. Good luck with any future mods.
Except to say you (and some others) are spooked by some fear factor postings here of GM going after tunes. I have yet to hear anybody losing their powertrain warranty from a tune, have you? How do you know the OP doesnt have good relationship with his dealer, or knows how to go back to oem tune and/or spare ecm, or does not give a rat's *ss about his warranty?
Last edited by siffert; Jun 24, 2009 at 01:11 AM.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
I hope the loss of your entire powertrain warranty is worth 16hp.
But I guess thats why they say "got to pay to play"
I was thinking about the same mods but if Im going to lose my warranty
might as well get a supercharger to make it worth my while.
Good luck with any future mods.
But I guess thats why they say "got to pay to play"
I was thinking about the same mods but if Im going to lose my warranty
might as well get a supercharger to make it worth my while.
Good luck with any future mods.
are you really this ignorant? get out of my thread..
if the motor goes. i will build it.. if the tranny goes.. i will build it.. i didnt buy a vette to ***** foot around like an old man. If i wanted that i would have bought a BMW and then gone on about how refined it is. i wonder what will impact my power train warrenty more. the LG headers im planning this year.. or the big nastey LG cam that will go in shortly after the headers?
Advanced
Joined: Apr 2009
Posts: 66
Likes: 1
LOL, I love this thread. Warranty lol. I dropped off my Brand New white C6 M6 coupe at LG motorsports last month. It was with them for 4 days and I got the following installed....
Vararam Intake
LG Super Pro Headers, 1 7/8" runners because I am dropping in a 416ci
G6X3 cam
COMP 921 SPRING KIT
COMP PUSH RODS, Seats, Seals, Retainers, and a Katech Timing
Chain
LG GT4 Catback exhaust (catless) with quad 4" tips
UNDERDRIVE PULLEY SET
HYPERTECH 160 DEGREE POWERSTAT
Final tune numbers (500whp 455tq) thank you very much, 98 degree day too. Bigger numbers coming soon.
when I get back, I am doing 3.90 gears, 416 bottom end, and Intake manifold with hopefully a 102mm TB.
Vararam Intake
LG Super Pro Headers, 1 7/8" runners because I am dropping in a 416ci
G6X3 cam
COMP 921 SPRING KIT
COMP PUSH RODS, Seats, Seals, Retainers, and a Katech Timing
Chain
LG GT4 Catback exhaust (catless) with quad 4" tips
UNDERDRIVE PULLEY SET
HYPERTECH 160 DEGREE POWERSTAT
Final tune numbers (500whp 455tq) thank you very much, 98 degree day too. Bigger numbers coming soon.
when I get back, I am doing 3.90 gears, 416 bottom end, and Intake manifold with hopefully a 102mm TB.
Last edited by superscout03; Jun 24, 2009 at 06:42 AM.