I'm trying to get a handle on the power output for the EVO Stage 4 GT package. I was under the impression there is different programming for different octane levels. Further I thought the "640 HP" was reserved for the 94 octane program. I was scanning the Evolution Motorsports website and noticed that 640 HP is claimed with the 91 octane program. Can someone set me straight on the various octane programs available and thier corresponding output levels? Is anyone achieving 640 HP / 670 TQ with the 91 octane program?

EVO 996TT Tested By K&N Engineering
Stage 4 GT Upgrade

Rear Wheel Power

640 HP / 670 TQ
(Pump 91 octane fuel)

Thanks, Mike

 

Those numbers are based at the crank, not the flywheel. Based on a 15% loss that would mean 545ish to the wheels on 91.

 

For the Stage 4GT Package, The HP/TQ has a 15% loss factor, and 10% uncertainty factor, meaning it is uncertain what your car will actually produce. You see it varies state to state, town to town, and believe it or not, varies by various ethnicities.

My GT2 dyno'd 631RWHP and If I remember 601-610RWTQ. I have programming issues as well, that I hope gets resolved within the next two to three weeks.

Thanks

Ryan

 

Ryan:

What is the highest horse power ethnicity? Knowing this, I might have to change mine.

Craig

 

Its out of this world...... Martian

 

Shank,

Do you still have a dyno sheet on the 631rwhp run? If so, can you post it? What other mods did you have on your car at the time. 631 rwhp is significantly higher than I've ever heard for that package. I'm wondering if other mods had an impact on this and if it was just a very short spike of power given your issues with the kit. I appreciate any info.

 

Nelson, you can find the dyno posting in this thread......

STAGE 4GT GT2 - 631RWHP, 645RWTQ


Hmmm, looks good doesn't it? Wonder why i'm still pissy and *****ing still. I need a drink.


L8R

 

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Damn Rights you're sounding *****y guy! Suck it up!
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Well if the 91 octane program is putting out 640 HP (544 2WHP) & 670 TQ (570 2WTQ), What are the official numbers for the 94 octane program?

 

My stage 4GT has a similar graph as yours but not as much peak hp and tq. I thought it might be the different load characteristics of the GT2 as your power builds a bit sooner in the rev range but since both our runs were on 2wheel dynos I'm still a bit confused. Do you have the scargo intake? I understand that Todd has enhanced the fuel injectors in subsequent kits but have not seen it in person yet.

 

I don't have the scargo intake, nor injectors.

Zippy, I do not have the race program, I'm on a 91/93 octane program.

RS

 

I hope that was just a slip of the tongue, for a porschephile you shouldnt make a mistake like that. tisk tisk

 

My best run on stage 4 gt was 559 to the wheels.

 

Great numbers. What octane was the ECU programmed for?

Mike

 

100 octane running 1.4 bar.