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Old 09-12-2007, 10:06 PM   #1
Dyno Flash
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Default '05 Sleeper LGT GT35 511 whp on pump and meth

This was a really nicely sorted car and was a lot of fun to drive, a lot of luxury and a lot of power and speed in a super comfortable machine

The modifications carfeully tested and chosen by the customer included a

Perrin Gt35 turbo kit
Turbo XS fmic
blow through MAF
Tial BOV
3" exhuast
fuel rails and adjustable fuel pressure regulator
PE injectors
TGV deletes
AP1 tuned by Dyno Flash
Cooling Mist Alchy kit
LGT stock inatake manifold

Stock long block, cams etc

This car really had excelent driveability with the blow through MAF and the PE injectors it was no problem on start udle and crusing around on partial TPS.

We eventually MAXED out the MAF sized in the TX's fmic pipe at 511 whp (26.5 psi of boost) and from there I detuned it slightly and lowered the boost a bit for a safe daily driver with plenty of head room left on the MAF. After I road tuned the car and put it back on the dyno at 24 psi of boost and it put down a respectable 450 whp with a very safe and conservative tune.

I was impressed with the low end TQ on this car and I query to what extent the LGT manifold effected the low end TQ vs the stock STI manifold I am more familair with. (I have not had a lot of LGT's with this level of modifcation or with a customer this motivated to push thelimits power wise).

But for the maxing out of the MAF I am sure we could have poured in some race gas and reached 550 plus whp with more boost.

Without a doubt a strong runner. I have always seen that the Perrin kit was a bit lower power than the UR GT35 for example due to the turbo back housing this car seemed to really make good power with the Perrin kit.


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Last edited by Dyno Flash; 09-12-2007 at 10:37 PM.
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Old 09-12-2007, 10:12 PM   #2
norexyet
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f'n sick. nice tune Al

what trans is he running??
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Old 09-12-2007, 10:12 PM   #3
brickhoss
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Old 09-12-2007, 10:13 PM   #4
WeldingHank
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flippin sweet. someone should do this with an Outback XT. now THATS a sleeper.
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Old 09-12-2007, 10:14 PM   #5
anthonywrx
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pics of the car!
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Old 09-12-2007, 10:16 PM   #6
dmross
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Pics of the car/engine bay? You out there owner?
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Old 09-12-2007, 10:16 PM   #7
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daaamn....thats a nice dyno there, i really want to do something like that with my lgt......if i wanted to retain a topmount (perrin/avo) whats the most power from what turbo that you think you could get?
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Old 09-12-2007, 10:31 PM   #8
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Quote:
Originally Posted by anthonywrx View Post
pics of the car!
+12345
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Old 09-12-2007, 10:37 PM   #9
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Here is a short video of the car on the dyno I will get some pics up later when I get back to ICS later this evening

http://www.youtube.com/watch?v=u-UWFERYR_A
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Old 09-12-2007, 11:49 PM   #10
wuuusaa
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sick numbers, suprised u didn't say bro. lol
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Old 09-13-2007, 12:21 AM   #11
VideoGameWrx
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ahhh sleeper!

EDIT: post #555!
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Old 09-13-2007, 12:35 AM   #12
lethal.adv
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SICK F-ING LGT!

Quote:
Originally Posted by ol'skoolwrx View Post
sick numbers, suprised u didn't say bro. lol
listen to 0:11
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Old 09-13-2007, 12:43 AM   #13
wuuusaa
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Quote:
Originally Posted by lethal.adv View Post
SICK F-ING LGT!



listen to 0:11
ok i was lying a little bit or maybe alot
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Old 09-13-2007, 12:44 AM   #14
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wow i want an lgt like that
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Old 09-13-2007, 01:00 AM   #15
EPskate
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damn al, nice job
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Old 09-13-2007, 02:23 AM   #16
Skully
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what transmission is in this car? im guessing he did a 6spd swap?
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Old 09-13-2007, 02:31 AM   #17
socalLGT
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Not to be a hater, but way to make the graph look great by starting the run at 4k rpm, compressing the vertical scaling and splitting the hp and tq on to separate graphs. Post up a dyno chart with hp and tq on the same graph and AFR (and not with AFR taking up as much vertical space as the hp/tq) curves.

It's a sick car and a good tune, no need to embellish it by messing with the presentation of the numbers.
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Old 09-13-2007, 03:00 AM   #18
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The stock clutch setup had no problems with this? I am surprised.
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Old 09-13-2007, 09:42 AM   #19
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Quote:
Originally Posted by socalLGT View Post
way to make the graph look great by starting the run at 4k rpm, compressing the vertical scaling and splitting the hp and tq on to separate graphs.


Nice !!
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Old 09-13-2007, 09:51 AM   #20
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Excellent job, nice LGT~
Good job Al
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Old 09-13-2007, 10:34 AM   #21
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that car is sick!
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Old 09-13-2007, 10:49 AM   #22
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Something for me to strive for, very nice.
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Old 09-13-2007, 11:03 AM   #23
Dyno Flash
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Quote:
Originally Posted by socalLGT View Post
Not to be a hater, but way to make the graph look great by starting the run at 4k rpm, compressing the vertical scaling and splitting the hp and tq on to separate graphs. Post up a dyno chart with hp and tq on the same graph and AFR (and not with AFR taking up as much vertical space as the hp/tq) curves.

It's a sick car and a good tune, no need to embellish it by messing with the presentation of the numbers.
"Not to be a hater" - (but since I cant resist I will anyway - this is what your post says to me)

What ever

You obviously lack experience with tuning high whp cars with larger turbos


On a GT35 R car you start a dyno run later as the car has no power till after 4,000 rpms - this does not effect the power reading in any way what so ever

On my own Gt42 equiped car I start dyno runs at 5,000 plus as peak boost is not till 7,000 and the red line is at 10,000

Its called the "power band" of a car which shifts when you have a larger turbo

If we were tuning a deisel truck I would start the pulls at 500 rpms and end them at 1,800 rpms

Anyway

For refernce I tune the low rpm zones of operation on the road after the dyno session
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Old 09-13-2007, 11:29 AM   #24
socalLGT
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C'mon Al. I've never claimed to be a tuner, although I did tune my own car with an SZ55, which is a decent sized turbo. I do however work part-time at my friend's tuner shop so I see plenty of cars on the dyno. You are welcome to start your runs anywhere you want, and obviously when you click the green button has no bearing on the peak numbers or the look of the meat of the power curve. However, what it does clearly change is the overall look of the graph. Compressing the vertical axis and the rpm band of the run makes your graph look a lot smoother and the powerband look longer, even though it's really only 2K rpm long. As I said before, the car is sick and the tune looks great, I just questioned your need to make it look better than what it is.

The "standard" for Dynojet graphs is to start sampling the run at 2000 rpm and present torque and horsepower on the same graph along with AFR, with the whp/wtq curves taking up the bulk of the space. That's how you show most of your graphs, so why the difference with this one other than to make a short powerband look better than it is?
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Old 09-13-2007, 11:47 AM   #25
Dyno Flash
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Quote:
Originally Posted by socalLGT View Post
C'mon Al. I've never claimed to be a tuner, although I did tune my own car with an SZ55, which is a decent sized turbo. I do however work part-time at my friend's tuner shop so I see plenty of cars on the dyno. You are welcome to start your runs anywhere you want, and obviously when you click the green button has no bearing on the peak numbers or the look of the meat of the power curve. However, what it does clearly change is the overall look of the graph. Compressing the vertical axis and the rpm band of the run makes your graph look a lot smoother and the powerband look longer, even though it's really only 2K rpm long. As I said before, the car is sick and the tune looks great, I just questioned your need to make it look better than what it is.

The "standard" for Dynojet graphs is to start sampling the run at 2000 rpm and present torque and horsepower on the same graph along with AFR, with the whp/wtq curves taking up the bulk of the space. That's how you show most of your graphs, so why the difference with this one other than to make a short powerband look better than it is?
So I guess what you are suggesting is that I should strive to present my dyno sheets so they look worse by starting the pulls at a earlier rpm point - even though a particular car may make no power that low? That makes no sense to me. I am unware of any industry "standard" on this point. As I said above the starting point should be tailored to the car you are running. A car which spools at 7,000 rpms should not be started at 2,000 rpms.

For example he is my own car's dyno sheet which I started at 5,500 rpms




The way I dyno a car with a large turbo is to start the green button before the turbo makes boost so my starting point varies with the power band of the car - this is the way I do it and have always done it.


Obviously if this customer builds his motor he is going to have a longer power band with a highefr rev limit say at 8,000 - 8,500 rpms it will be right back on boost every time he shifts

If you watch the video you can see how cleanly and smoothly the car does the pull and its the same way on the road as well - that is the main thing as we dont drive dyno sheets

Al

Last edited by Dyno Flash; 09-13-2007 at 11:53 AM.
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