Flex Fuel & Header Combo
Thread Starter
Intermediate
Joined: Apr 2019
Posts: 47
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From: Texas
Flex Fuel & Header Combo
Hello all
I’m looking to add a flex fuel kit and long tub headers to my 19 Z06. I was wondering if this combo would work with the stock fuel system. I’ve read that I may need to upgrade and get a low side fuel pump because I could possibly run into fueling issues. Any help would be appreciated
I’m looking to add a flex fuel kit and long tub headers to my 19 Z06. I was wondering if this combo would work with the stock fuel system. I’ve read that I may need to upgrade and get a low side fuel pump because I could possibly run into fueling issues. Any help would be appreciated
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Joined: Mar 2004
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From: South Florida
With a 2019 Z06 you don't need a low side solution as it has the ZR1 low side pump from factory. But a tuner that knows how to squeeze more out of the low side and high side pump will help stretch your Ethanol Content %. That said, E60 should be easily obtainable with those mods without upgrading the low side or high side on the 2019.
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You will be able to run E50 which even if you could run full E85 it would make the same power. Do that with an aeroforce gauge to see the e content and our gauge pod to mount behind radio, and you're set! We do this combo a lot and usually see 85-90 rwhp gain over stock and most add in our expansion tank to ensure no air pockets.
https://cordesperformanceracing.com/...ideband-mount/
https://cordesperformanceracing.com/...-zo6-ice-tank/
https://cordesperformanceracing.com/...ideband-mount/
https://cordesperformanceracing.com/...-zo6-ice-tank/
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Cordes Performance Racing aka "CPR"
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Cordes Performance Racing aka "CPR"
Owner of AZ's premier LSX/LTX motorsports shop
http://cordesperformanceracing.com/
www.facebook.com/cordesperformanceracing.com
joe@cordesperformanceracing.com
480-359-5914
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Joined: Feb 2009
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From: Mesa Az
Thread Starter
Intermediate
Joined: Apr 2019
Posts: 47
Likes: 4
From: Texas
Thread Starter
Intermediate
Joined: Apr 2019
Posts: 47
Likes: 4
From: Texas
If I decided to do the lower pulley as well wouldn’t I need to upgrade my cooling bricks since I would be spinning the supercharger harder? And would I gain about the same amount of power with just flex fuel and headers as opposed to flex fuel, headers & lower pulley?
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From: Mesa Az
Stock bricks will be perfectly fine. With a pulley I typically see another 30-40 rwhp gain.
Drifting
Joined: Aug 2015
Posts: 1,421
Likes: 253
Hello all
I’m looking to add a flex fuel kit and long tub headers to my 19 Z06. I was wondering if this combo would work with the stock fuel system. I’ve read that I may need to upgrade and get a low side fuel pump because I could possibly run into fueling issues. Any help would be appreciated
I’m looking to add a flex fuel kit and long tub headers to my 19 Z06. I was wondering if this combo would work with the stock fuel system. I’ve read that I may need to upgrade and get a low side fuel pump because I could possibly run into fueling issues. Any help would be appreciated
I decided to just stick with 101 u leaded. Exhaust tips stay super clean. Clean injectors and similar power to E50 from what I have read on here. Now the price is t all that much more either lol.
Drifting
Joined: Oct 2012
Posts: 1,280
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From: Germany
I was about to do the same but had seconds thoughts on the whole E85. Unless you buy the expensive stuff in a barrel it is pretty dirty. Clogs injectors and apparently gums up other things.
I decided to just stick with 101 u leaded. Exhaust tips stay super clean. Clean injectors and similar power to E50 from what I have read on here. Now the price is t all that much more either lol.
I decided to just stick with 101 u leaded. Exhaust tips stay super clean. Clean injectors and similar power to E50 from what I have read on here. Now the price is t all that much more either lol.
Drifting
Joined: Aug 2015
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Safety Car
Joined: Mar 2004
Posts: 4,048
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From: South Florida
Been running pump E85 for years and so have my clients, never even run a tank on 93. Never had any issues. Although in FL and TX the pumps always have fresh E85. Not sure where the stigma's came from about dirty and gummy. That hasn't been my experience.
Safety Car
Joined: Mar 2004
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From: South Florida
Because the fuel volume required to run full E85 on the LT4 would have raised production costs due to needed the whole system beefed up. Additionally they met the performance goals on pump gas. It was answered somewhere on this forum by Tadge I think.
Drifting
Joined: Aug 2015
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I was told this by reputable Chevy service manager who does a lot of track cars and races himself at a high level. He ran e85 in his ZR1 and had to clean injectors once a year. I think he was running full e85. Perhaps mixing to e40-50 or isn’t as much of an issue. He said they don’t have the quality control on pump E85 like they do regular fuels. I did some searches and found lots of similar stories across a lot of platforms.
I just decided it wasn’t worth the hassle mixing and having to bring jugs to the track etc. tracks have pump 101. Decided I’d rather spend couple hundred bucks per track day and keep things simple.
