2.0 LNF Tuning Now Available!

[imaj]

Is the 310+ HP whp?

[Moose GXP]

Originally Posted by imaj Is the 310+ HP whp?

at the engine I would assume. stock is 260 at the engine

[GM Roadster Club]

Originally Posted by imaj Is the 310+ HP whp?

Crank HP

Originally Posted by Moose GXP at the engine I would assume. stock is 260 at the engine

Correct Stock is 260hp at the Crank were at around 310hp.....We have tuned three cars with the same tune and with all applications there were slight variances from car to car......


Martin

[MeanSol]

If this pans out, not only will you have a new customer for the tune, but sign me up for a lifetime membership to your club, lol.
This is the type of power that I have been waiting on, and a price that is not an insult to bang for the buck shopper.
I cannot wait to see some dyno numbers.

[GM Roadster Club]

Hello all,

I'm out of the office for the day, I will answer any new questions when I return....

Thanks,

Martin

[LatinVenom]

Could you answer mine when you can.
Thanks.

[StevieG]

Originally Posted by bradyb $300?????? %$%#@^!#$!@#$!@$!@#$%@!!!! Dyno graphs? 50 HP/80'Ib trq increase from stock dyno? I guess it's time I finally joined the Special Kappa Friends Club .

I joined and I am getting the flash too. Don't know for sure if I will get the Extra ECM or just re-flash mine on the send-in route. for $300 that is the best bargain out there. So much so, that it totally negates our friend BigBlau's bloated arguments about the V-6 now doesn't it...

[bradyb]

Exactly $300 for that much horsepower and torque is awesome, that's the main reason why I bought a forced induction motor. It is just so easy to turn up the boost.

Stevie, I shot you a PM

[Frank I]

Originally Posted by GM Roadster Club Yes 2007 & 2008 model years.....we have Dyno Charts on the way we are compiling charts from a few different pulls. Martin

Martin:

I do not think there was any mention of your ECM mod increasing the RPM limit? Does your tune raise the RPM limit to 7K or above? Thanking you in advance for your response.

Frank I

[bradyb]

How were those numbers derived?

Does 310 crank horsepower include the difference in wheel horsepower multiplied by 115% and then added to 260 crank horsepower:
(263 whp – 219whp)(115%) + 260hp = 310 Crank HP

Or

Is 310 crank horsepower just simply the difference between stock whp and reflash whp added to 260:
(269 whp-219 whp) + 260 = 310 Crank HP

The difference between the two being 263 wheel horsepower versus 269 wheel horsepower. I came up with 263 wheel horsepower just be subtracting the 15% drive train loss from 310 crank hp.

I guess we just need to look at a dynograph right?

[bradyb]

Essentially I'm trying to compare apples to apples:

PCMs for less is reporting:
235 stock whp - 270 reflash whp
263 stock wtrq - 332 reflash wtrq (I'm guessing thats a typo since 332 whp = 381 crank hp)

GMRoadster:
310 crank hp -15% = 263.5 reflash whp
340 crank trq -15% = 289 reflash wtrq

BSR
244 stock whp - 272 reflash whp
255 stock wtrq - 285 reflash trq

Of course dynos are very different, Mustang vs Dynometer , etc...

[folkxrock]

How does this tune compare to Westers? Anyone have numbers for Wester Race tune?

[bradyb]

Originally Posted by folkxrock How does this tune compare to Westers? Anyone have numbers for Wester Race tune?

Westers did not have a 2008 tune yet, that's why we're all freaking out. $200 for PCMs for less and $300 for GM roadster.

[folkxrock]

Originally Posted by bradyb Westers did not have a 2008 tune yet, that's why we're all freaking out. $200 for PCMs for less and $300 for GM roadster.

Yeah, I know this about the 2008's but I still want to compare the numbers. I thought the Westers tune (for the 2007) produced better numbers, but I could not find the info on the forum when I did a search.

[GM Roadster Club]

Originally Posted by bradyb GMRoadster: 310 crank hp -15% = 263.5 reflash whp 340 crank trq -15% = 289 reflash wtrq Of course dynos are very different, Mustang vs Dynometer , etc...

What you are going to have to break it down to is a % in increased hp over stock. The GMRoadster numbers are very conservative, I'll tell you that. I have 3 more cars lined up for the dyno this Saturday, one is also an automatic. I do not want to base the numbers off of one car, I want to prove that it is consistent across the board. I have been tuning the HHR SS, Cobalt SS, Sky Redline, and Solstice GXP. So far results are similar between the different models. This motor is a little rocket for what it is.

Steve
GMRoadster Tuner