2.0 LNF Tuning Now Available!

[LatinVenom]

The true base is 216 - 219 RWHP = 260 BHP
Also the % is more like 17% and not 15% loss.
GM Roadster has the better figures, which means the Dyno was probably calibrated properly.
He said 310 + so if you use 312 - 315 with the 17% loss it gets pretty close to the 260 BHP.
The gain for either tune is about the same regardless of the starting stock Dyno RWHP figure.

[Yamatr3]

Originally Posted by GM Roadster Club 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

So, do you have any dyno sheets yet?

[GM Roadster Club]

Martin will post the results shortly. I have compiled all of the data. He will not be releasing low ball figures vs. best result figures. What he will be posting is the median stock pull vs. the median tuned pull. The numbers still look awesome!

I have these cars pulling upwards of 361 torque at the crank on average! Power kicks in as soon as you touch the gas, this car comes alive!

I saw as much as 321 crank horsepower too.

We dyno'd all 8 cars on 91 octane pump gas, completely stock cars even stock airfilter etc, and in 111deg. outside temperatures. The actual temperature coming in the intakes was 135deg so whatever numbers you see from Martin will be conservative.....very much so. Most people will probably see significantly more power because the computer reduces power output at those intake air temperatures.

People with 93 octane should expect ~2% more power, and people in colder climates will expect even more power. There should be no one out there pulling the temps that we do, but I test these cars to the extreme when I make a solid tune. I don't want to tell you one thing, and then have you experience far less, "I" want to experience any heartbreak first hand, and then let you have all the fun.

Steve-GMR Tuner

[Yamatr3]

Sounds great, looking forward to seeing them!

[GM Roadster Club]

Ok the moment you have all been waiting for, our official Dyno numbers. We tuned and dyno'ed 8 cars total over a two week period. We saw some freakish results with a few of the cars making more power then the other 6 with the same tune. We made sure that all the cars that were tested ran 91 Octane fuel and no major modifications (Intercooler, Charge Pipes, Hi-Flow CAT, Etc.). All the cars were bone stock except for the occasional Cold Air Intake.

This dyno chart represents the median gains of our results. We did not choose the higher numbers simply because we do not believe in mis-leading anyone. Also take note both days that we ran Dyno pulls the outside temperature was 111deg. So individuals in cooler climates can expect higher gains under the same tune.



We saw the average Car pull 214 Wheel HP and on our tune the same car pulled 255 Wheel HP (41WHP Increase). Stock Torque was 247Lbs and on tune was 299Lbs (52Lbs Gain).

On the same car that relates to 308 Crank HP and 361 Crank Torque.

Again, please remember that we tested under probably the most extreme conditions known....Unless we parked a Dynojet in the middle of Death Valley in July!

Thanks,

Martin

[LatinVenom]

Martin,
To be honest I think you need to post the whole spectrum from the lowest to the highest.
This way people can visualize how it is not quite the same from car to car.
The median is where most cars should fall, but you will have those that will fall to the lower scale and others that will swing to the higher side.

[GM Roadster Club]

Originally Posted by LatinVenom Martin, To be honest I think you need to post the whole spectrum from the lowest to the highest. This way people can visualize how it is not quite the same from car to car. The median is where most cars should fall, but you will have those that will fall to the lower scale and others that will swing to the higher side.

OK to make this simple the least gains we saw were 24Whp and the most we saw was 52Whp.....Any way you look at this people are going to see varied results depending on there climate and location.....this is just a set of hard numbers and most cars will fall in this range...

Thank you for the question,

Martin

[Bagpypr]

Originally Posted by GM Roadster Club OK to make this simple the least gains we saw were 24Whp and the most we saw was 52Whp.....Any way you look at this people are going to see varied results depending on there climate and location.....this is just a set of hard numbers and most cars will fall in this range... Thank you for the question, Martin

All I can say is !WOW

oops, I was so excited I spoke backwards. What I meant to say was WOW!!!

[LatinVenom]

But what this tells me is the car with that low number has a problem and should be investigated by the owner with the dealer.
Was that car Dyno stock less than 210 RWHP.
Was the turbo able to hit the 21-22 psi.
Could the ECM programming from the factory be faulty, etc.
Could it have injectors problems, or fuel rail pressure problems.
As an owner I want to know if a have one of those defective cars.

[GM Roadster Club]

Originally Posted by LatinVenom But what this tells me is the car with that low number has a problem and should be investigated by the owner with the dealer. Was that car Dyno stock less than 210 RWHP. Was the turbo able to hit the 21-22 psi. Could the ECM programming from the factory be faulty, etc. Could it have injectors problems, or fuel rail pressure problems. As an owner I want to know if a have one of those defective cars.

Don't we all....Only way to really find out is get your baby on a dyno and see what it makes stock.... if your in the 214-230 range your ok..Trust me...I have dyno'ed 14 of these cars in total and have seen that on the same dyno on the same day they sould all come close to the same...If your car makes a significantly lower number your in trouble....

Martin

[richm]

Originally Posted by LatinVenom As an owner I want to know if a have one of those defective cars.

In Phoenix, our SKY-SOL club has had a couple of "Dyno Days" for our roadsters, often doing before-and-after comparisons immediately after tunes or intake and exhaust upgrades. In two cases that I am aware of, we ended up not doing the mods or tunes because of problems we found with the cars. One was just knocking real bad, possibly due to bad gas, and another may have had catalytic converter problems (still working with the dealer on that one). If the car isn't throwing any codes, however, it may difficult to get the dealer to act, so having a dyno sheet to show them (plus other stock dyno sheets run on identical vehicles on the same day and under the same conditions) may help.

By the way, I know that Martin is working with auto mechanic schools to try to arrange less expensive dyno days for local SKY and Solstice clubs everywhere. Until now, it has been costing $50-100 per car to do the dynos, but it looks like we may be able to significantly knock that down, at least in major cities that have these schools.

[Deep-GXP]

What i have gathered so far.
Correct me if i am wrong.



GM Roadster Dyno Chart - http://www.gmroadster.com/images/stories/dyno_lg.jpg
GM Roadster Tune Cost - $300
ECU through GM Roadster - $400
GM Roadster Update Costs - $75, includes return shipping
Available on HP Tuners - NO
Keep Stability Control - ??
Keep Competition Mode - ??
Rev Limiter - ?
Top Speed Limiter - ?
Tune and BTF Upgrade - ?

HP: 308
TQ: 361

Average Car pull of 214 Wheel HP and on our tune the same car pulled 255 Wheel HP (41WHP Increase).
Stock Torque was 247Lbs and on tune was 299Lbs (52Lbs Gain).
On the same car that relates to 308 Crank HP and 361 Crank Torque.
Least gain seen was 24Whp and the most we saw was 52Whp.



Answered Questions:

GXP 2007 and 2008? (yes Both Years)

Where did the tune come from? (Our own in house tuner)

Is this a computer swap or reflash via hand held tuner? (Either ECM Swap / Mail but no not a Hand Held Unit)

Any customer feedback available? (Coming early next week)

Are the stock airflow sensors being used, if so how are they performing? (Yes, They are capable of reading up to 255kPa and we are operating with in that range)

Do you need to purchase upgraded hose clamps? (No but you will need to tighten the factory ones)

Timeslips, G Meter 0-60 or 1/4 mile times? (Have not gotten out to the track yet, also there are a lot of variables when it comes to track times)

[GM Roadster Club]

Originally Posted by Deep-GXP What i have gathered so far. Correct me if i am wrong. GM Roadster Dyno Chart - http://www.gmroadster.com/images/stories/dyno_lg.jpg GM Roadster Tune Cost - $300 ECU through GM Roadster - $400 GM Roadster Update Costs - $75, includes return shipping Available on HP Tuners - NO Keep Stability Control - Yes Keep Competition Mode - Yes Rev Limiter - 6300 until more data can be collected on long term effects of a higher rev limiter Top Speed Limiter - Raised to 220mph Tune and BTF Upgrade - As of today no HP: 308 TQ: 361 Average Car pull of 214 Wheel HP and on our tune the same car pulled 255 Wheel HP (41WHP Increase). Stock Torque was 247Lbs and on tune was 299Lbs (52Lbs Gain). On the same car that relates to 308 Crank HP and 361 Crank Torque. Least gain seen was 24Whp and the most we saw was 52Whp. Answered Questions: GXP 2007 and 2008? (yes Both Years) Where did the tune come from? (Our own in house tuner) Is this a computer swap or reflash via hand held tuner? (Either ECM Swap / Mail but no not a Hand Held Unit) Any customer feedback available? A few people from Phoenix who have the tune posted already Are the stock airflow sensors being used, if so how are they performing? (Yes, They are capable of reading up to 255kPa and we are operating with in that range) Do you need to purchase upgraded hose clamps? (No but you will need to tighten the factory ones) Timeslips, G Meter 0-60 or 1/4 mile times? (Have not gotten out to the track yet, also there are a lot of variables when it comes to track times)

Thanks,

Martin

[LatinVenom]

I have an announcement to make PLEASE.
I am calling ALL the Supporting TUNER vendors to participate in my plan, and together with BTFRacing will give the Solstice\SKY membership, a performance solution that when weight against performance vs $$$ spend will be a win win situation, not only for the owners but also for the Tuner Vendors.
Here is the PLAN.
I will be sending a GXP Turbocharger(GM KO4) to BTFRacing, this Stock turbocharger will get the new upgraded wheel and it will also be Swain Tech.
Once BTFRacing is finish with it, the upgraded turbocharger will be offer for a period of 15 days, to each Supporting tuner Vendor on the forum.
Starting with PCMForless if Alvin\Bryan want to take advantage of this offer and ALL others.
They can have the upgraded turbocharger and for 15 days they can develop tunes for our 2.0 LNF motor. I would like for them to develop tunes 1st using ALL stock hardware except for the Upgraded turbo of course, then they can add what ever extra components they would like to certify with their tune.
Next PCMForless will send the Upgraded Turbocharger to GMRoadster (Martin) and the same scenario of 15 days etc.
From there I would like for Dejon (Dave) using Lyndon's Westers tune and his Dejon IC to incorporate the BTF Turbo upgrade with this tune and any additional pieces they would want to test and offer to the membership.
I will also make the offer to Lyndon if he feels the need to test it in his own facilities in Canada.
I would also like to have Vector Motor Sports another of our Tuner Vendors participate, however they will need a couple of cars to be able to incorporate their tune with BTF Turbo upgraded wheel.
Finally I would like to challenge Hahn from Hahn Racecraft to send his IC with the BTF Turbocharger upgraded wheel, so those members that would like to have his IC, the tuners can also offer this combination.
I also do not want to leave RPI out of the equation, so if they would like to participate on this PLAN they are also welcome to have the BTF Turbo upgraded wheel turbocharger.
After ALL Tuners that want to take advantage of this PLAN are done, then the last one will return the Turbocharger back to BTFRacing for inspection and then finally back to me.
I truly hope that ALL the above mentioned Supporting vendors take advantage of this plan.
I am using the 15 days or 2 weeks for each tuner so they have ample time to develop tunes for different years(07/08/09) and also 5 speed vs automatic.
If they feel 15 days is not long enough we need to come up with a reasonable time table so, tunes can start been offer to our membership ASAP.
My expectations are that after this is done we will have tunes that will give our cars the stock power of a LS1(350 BHP), LS2(400 BHP) and the LS3 (430 BHP).
Thank you.
PS:
BTF the turbocharger is been FDX to me this coming Monday, once I have it I will then ship it to you, for the Upgrade of the Wheel and also the Swain Tech coating.

[GM Roadster Club]

I will have to find a Car that is willing to participate, but if I do Count us in......

Martin

Originally Posted by LatinVenom I have an announcement to make PLEASE. I am calling ALL the Supporting TUNER vendors to participate in my plan, and together with BTFRacing will give the Solstice\SKY membership, a performance solution that when weight against performance vs $$$ spend will be a win win situation, not only for the owners but also for the Tuner Vendors. Here is the PLAN. I will be sending a GXP Turbocharger(GM KO4) to BTFRacing, this Stock turbocharger will get the new upgraded wheel and it will also be Swain Tech. Once BTFRacing is finish with it, the upgraded turbocharger will be offer for a period of 15 days, to each Supporting tuner Vendor on the forum. Starting with PCMForless if Alvin\Bryan want to take advantage of this offer and ALL others. They can have the upgraded turbocharger and for 15 days they can develop tunes for our 2.0 LNF motor. I would like for them to develop tunes 1st using ALL stock hardware except for the Upgraded turbo of course, then they can add what ever extra components they would like to certify with their tune. Next PCMForless will send the Upgraded Turbocharger to GMRoadster (Martin) and the same scenario of 15 days etc. From there I would like for Dejon (Dave) using Lyndon's Westers tune and his Dejon IC to incorporate the BTF Turbo upgrade with this tune and any additional pieces they would want to test and offer to the membership. I will also make the offer to Lyndon if he feels the need to test it in his own facilities in Canada. I would also like to have Vector Motor Sports another of our Tuner Vendors participate, however they will need a couple of cars to be able to incorporate their tune with BTF Turbo upgraded wheel. Finally I would like to challenge Hahn from Hahn Racecraft to send his IC with the BTF Turbocharger upgraded wheel, so those members that would like to have his IC, the tuners can also offer this combination. I also do not want to leave RPI out of the equation, so if they would like to participate on this PLAN they are also welcome to have the BTF Turbo upgraded wheel turbocharger. After ALL Tuners that want to take advantage of this PLAN are done, then the last one will return the Turbocharger back to BTFRacing for inspection and then finally back to me. I truly hope that ALL the above mentioned Supporting vendors take advantage of this plan. I am using the 15 days or 2 weeks for each tuner so they have ample time to develop tunes for different years(07/08/09) and also 5 speed vs automatic. If they feel 15 days is not long enough we need to come up with a reasonable time table so, tunes can start been offer to our membership ASAP. My expectations are that after this is done we will have tunes that will give our cars the stock power of a LS1(350 BHP), LS2(400 BHP) and the LS3 (430 BHP). Thank you. PS: BTF the turbocharger is been FDX to me this coming Monday, once I have it I will then ship it to you, for the Upgrade of the Wheel and also the Swain Tech coating.