E85 Flex Fuel Conversion looking for advise.
Thread Starter
Intermediate
Joined: Apr 2021
Posts: 41
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From: Texas
E85 Flex Fuel Conversion looking for advise.
I have a 2012 GS Z16, with cai, cam, headers, x-pipe, trunnion kit, and heads have not been done. I'm currently at 452hp at the wheels. I'm looking to get the most horsepower I can with this conversion, is it realistic to get over 500hp, maybe close to 550hp? I've been doing some research should I go with a 50lb or 60lb injector? Looking for some advise on this. Thank you in advance.
Safety Car
Joined: Sep 2007
Posts: 4,009
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From: South Florida
If you want 500 at the wheels youre gonna need to go up on the came side and do the heads. I’m guessing your car has a relatively small cam in it currently? Stay away from e85, won’t even get you 10hp on your combo.
Instructor
Joined: Oct 2011
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From: Sioux Falls, SD
Burning Brakes
Joined: Jan 2019
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From: Dallas, Tx
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Instructor
Joined: Oct 2011
Posts: 102
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From: Sioux Falls, SD
Some day it will get a blower on it, so that's why I decided to put that cam in there. With the stock stall the car drives just fine on the street, no bad street manners. I think peak power occurs about in the same spot as stock(6K). Our local drag strip isn't the known for impressive times, but the best it's ran is 11.50@124 with a 1.82 60' in 2800 DA. The stock stall is really hurting it at the strip though, feels a little lazy leaving, can only leave around 1200rpm. It picked up 19 rwhp and 13 rwtq when i switched to e85, but I also put the rod modded manifold on at the same time...
Burning Brakes
Joined: Jan 2019
Posts: 1,212
Likes: 215
From: Dallas, Tx
Some day it will get a blower on it, so that's why I decided to put that cam in there. With the stock stall the car drives just fine on the street, no bad street manners. I think peak power occurs about in the same spot as stock(6K). Our local drag strip isn't the known for impressive times, but the best it's ran is 11.50@124 with a 1.82 60' in 2800 DA. The stock stall is really hurting it at the strip though, feels a little lazy leaving, can only leave around 1200rpm. It picked up 19 rwhp and 13 rwtq when i switched to e85, but I also put the rod modded manifold on at the same time...
Instructor
Joined: Nov 2019
Posts: 226
Likes: 59
From: Farmington, MI
I have a 2012 GS Z16, with cai, cam, headers, x-pipe, trunnion kit, and heads have not been done. I'm currently at 452hp at the wheels. I'm looking to get the most horsepower I can with this conversion, is it realistic to get over 500hp, maybe close to 550hp? I've been doing some research should I go with a 50lb or 60lb injector? Looking for some advise on this. Thank you in advance.
- RED = baseline, pump 93 octane
- BLUE = changed intake, pump 93 octane
- BROWN = changed intake, pump E85
Car has Halltech CAI, Mamo MSD intake, fixed stock heads, 60# injectors, BTR stage 2 cam, Kooks LT headers and Corsa exhaust. E85 gave +11whp and 18-19 tq over 93 octane.
Have you considered an MSD intake?