Gt3stu

Anyone run e85 is it worth it....what are hp gains..and what supporting mods do you need to run it?

JB911

There was some info on Cobb and E85, I think it was available for 997.1 GT3 cars-GT2s and Turbos would surely benefit from it

Roc997

I plan on making the switch to E85 in the next few days. I have a 997 GT3 with factory headers/cats, Custom straight pipe, and stock airbox. The car made 344whp on our dyno last week. I will post up E85 power gains and any other relevant info on the switch as soon as I test it. All tuning will be done via a COBB accessport.

Gt3stu

nice man i made 416whp with dundon catless headers stock muffler,custom tune via cobb n fabspeed intake

Roc997

Wow that's pretty darn good, I will have to pick up headers and an intake. E85 should be good for another 30-40 hp on top of that.

AudiOn19s

I'd be interested to see the results, I'd think e85 on an N/A car is probably only good for maybe 15-20hp tops. That said, i wish someone would make an E85 tune for 996 GT3's.

GoatFarmer

Interesting to see the difference in peak power with small changes. My 100% stock 997.1 GT3 peaked at 367 whp at 7650 RPM.

Modena 1

Subscribed.

The power increase from The headers alone seems legit.

CosmosMpower

Spyerx

I talked a bunch with Mitch at Cobb about this (he does much of the Porsche tuning). Basically you get 101 octane level performance, the fuel if you can find it is about 1/4 the cost, and it is consumed about 30% faster than gasoline.

So if you can get the fuel, it's a good mod.

Gt3stu

made 381whp with just intake so i gained 35whp

flsupraguy

Hey Roc,

Did you ever get results on the gt3 with e85?

Roc997

Unfortunately no solid results as of yet, it has been non stop at the shop here and I have had no time for personal projects. We are in the process of moving to a larger facility and should be up and running there shortly, with the extra space and free time in the winter, I should have actual gains and information very soon.

onelove

I've been bugging Cobb for a 996 accessport but fallen on deaf ears

voodoo

I staffed our booth (Eibach) at Rennsport Reunion and couldn't believe how many 996 questions I received. I didn't see that coming.