CREC Engine 3.0t (2016+) Can they run full E85?

[denokarter]

Hi everyone,
im looking to purchase a 2016 A6 3.0T and im wondering if they can run on E-85 ?
I'm looking to go duel pulley, is it even possible to put a crank pulley on the CREC motor ?
The IE team on their website say they can run E60-E85 but im not sure if thats with their HPFP or not
Also, there is apparently news that 034 is coming out with new CREC engine related products

[ZaubA6]

I'm running a crank pulley only on my CREC. Not sure about the E85.

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[Jake@JHM]

People run our JHM Crank Pullies all the time on CRECs. E85 supporting mods would depend on the software you go with. We have additional CREC products coming soon as well

[ZaubA6]

People run our JHM Crank Pullies all the time on CRECs. E85 supporting mods would depend on the software you go with. We have additional CREC products coming soon as well

I'm running your 179mm, nice looking pulley :)

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[wootwoot]

Hi everyone,
im looking to purchase a 2016 A6 3.0T and im wondering if they can run on E-85 ?
I'm looking to go duel pulley, is it even possible to put a crank pulley on the CREC motor ?
The IE team on their website say they can run E60-E85 but im not sure if thats with their HPFP or not
Also, there is apparently news that 034 is coming out with new CREC engine related products

034 has been coming out with new CREC related products for years now, their development has been very slow. IE has a good CREC tune but from my understanding they have quit developing for the CREC. Jackal has been making rapid advancements on the CREC engine and are worth checking out. They're putting in features that other tuning companies haven't like locking the supercharger clutch to avoid clutch slip issues.

[Speedooooo]

IE has an E85 tune for the CREC. You don't need any upgrades. I ran it fine for over a year and then had some fuel pump issues. I'm back on the 93 tune for a bit. You can also do E85 single pulley with IE.

[Jake@JHM]

I'm running your 179mm, nice looking pulley :)

Sent from my Pixel 6 Pro using Audizine Forum mobile app

Glad you like it! Thanks for the support

[denokarter]

Thanks for all the replies.

I got a reply from IE, they mentioned that going duel pulley on the CREC motor causes the supercharger clutch to slip. The only option is to to weld the supercharger ( not sure what they mean by welding supercharger) but that will throw codes, therefore they do NOT support duel pulley CREC. 034 has mentioned that they do NOT support duel pulley on CREC as well ...but they are working on something soon.

IE did mention that E85 works fine without any HPFP upgrade.

so really at the moment, it looks like single pulley e85 will give you best hp/tq results while running smoothly.

- - - Updated - - -

IE has an E85 tune for the CREC. You don't need any upgrades. I ran it fine for over a year and then had some fuel pump issues. I'm back on the 93 tune for a bit. You can also do E85 single pulley with IE.

What did you do to fix the fuel pump issues, simple replacement of fuel pump?
Cheers

- - - Updated - - -

People run our JHM Crank Pullies all the time on CRECs. E85 supporting mods would depend on the software you go with. We have additional CREC products coming soon as well

Glad to hear you guys are still supporting this platform!

[Speedooooo]

What did you do to fix the fuel pump issues, simple replacement of fuel pump?

I haven't tackled the issue. I ran straight E85 for over a year without any issues and then I started throwing lean codes all the time. A few folks were saying that you need to run 93 after 5-6 tanks of E85 to lube up the system. I swapped back to 93 and the issue went away. I haven't swapped back to E85 yet.

[ActiveMonkey]

Hi everyone,
im looking to purchase a 2016 A6 3.0T and im wondering if they can run on E-85 ?
I'm looking to go duel pulley, is it even possible to put a crank pulley on the CREC motor ?
The IE team on their website say they can run E60-E85 but im not sure if thats with their HPFP or not
Also, there is apparently news that 034 is coming out with new CREC engine related products

1. Can you run straight E85?

Yes, kind of, but mainly yes. I had intermittent issues on IE Single Pulley E85.

2. Can you run Dual Pulley?

Yes, kind of, the CREC motor uses a magnetic supercharger clutch which is reported to have issues on dual pulley setups. Some people weld the supercharger clutch disks but that will throw a CEL, others just run it and see how long their supercharger clutch will last. GAS is coming out with a billet supercharger clutch delete and their most recent update says they expect to ship initial orders mid-January 2024. The bigger issue is finding a tuner who offers a dual pulley tune for it. I've heard IE has a file, but you need to email them and ask for it. Same with Jackal.

3. The IE team on their website say they can run E60-E85 but im not sure if thats with their HPFP or not.

Regarding their HPFP, its for the C7 and B8 & B8.5 folks, not crec. The crec HPFP is different and already higher flowing than the C7 and B8 & B8.5 S4. You do not need to upgrade your HPFP to run E85. I bought an extra HPFP and upgraded it using the Autotech piston, didn't help, saving it for later incase i actually need it. IE has a single pulley E85 file out (I have this) and it works but I had intermittent issues for nearly a year and no one can figure it out. The issue was even present on the IE 93 octane file. After replacing the entire fuel system and doing the back and forth with IE tech support to no avail, I switched to Jackal and poof, no more issues. I'm not saying it was the tune, but it's one hell of a coincidence. In talking with people smarter than me, the leading theory (which is beyond my knowledge base) is that the car was requesting too high of a LPFP duty cycle and it triggers some kind of fuel pump limp mode. If you pull over and turn off and on the car resets and you're good to go again until the issue comes back. I'm building a dual brushless LPFP setup and we'll see if that can flow enough for E85. fingers crossed.

4. Also, there is apparently news that 034 is coming out with new CREC engine related products.

They have been saying that for a while with no news, updates or ETA. It seems like Jackal is the only tuner actively updating and providing news on CREC tunes. So far they've been great.

[Jake@JHM]

1. Can you run straight E85?

Yes, kind of, but mainly yes. I had intermittent issues on IE Single Pulley E85.

2. Can you run Dual Pulley?

Yes, kind of, the CREC motor uses a magnetic supercharger clutch which is reported to have issues on dual pulley setups. Some people weld the supercharger clutch disks but that will throw a CEL, others just run it and see how long their supercharger clutch will last. GAS is coming out with a billet supercharger clutch delete and their most recent update says they expect to ship initial orders mid-January 2024. The bigger issue is finding a tuner who offers a dual pulley tune for it. I've heard IE has a file, but you need to email them and ask for it. Same with Jackal.

3. The IE team on their website say they can run E60-E85 but im not sure if thats with their HPFP or not.

Regarding their HPFP, its for the C7 and B8 & B8.5 folks, not crec. The crec HPFP is different and already higher flowing than the C7 and B8 & B8.5 S4. You do not need to upgrade your HPFP to run E85. I bought an extra HPFP and upgraded it using the Autotech piston, didn't help, saving it for later incase i actually need it. IE has a single pulley E85 file out (I have this) and it works but I had intermittent issues for nearly a year and no one can figure it out. The issue was even present on the IE 93 octane file. After replacing the entire fuel system and doing the back and forth with IE tech support to no avail, I switched to Jackal and poof, no more issues. I'm not saying it was the tune, but it's one hell of a coincidence. In talking with people smarter than me, the leading theory (which is beyond my knowledge base and is unproven) is that the car was requesting too high of a LPFP duty cycle and it triggers some kind of fuel pump limp mode. If you pull over and turn off and on the car resets and you're good to go again until the issue comes back. I'm building a dual brushless LPFP setup and we'll see if that can flow enough for E85. fingers crossed.

4. Also, there is apparently news that 034 is coming out with new CREC engine related products.

They have been saying that for a while with no news, updates or ETA. It seems like Jackal is the only tuner actively updating and providing news on CREC tunes. So far they've been great.

Our clutch delete will be available soon as well. We will offer software for it.

[ActiveMonkey]

Our clutch delete will be available soon as well. We will offer software for it.

Very nice! Any idea on timing?

[Jake@JHM]

Very nice! Any idea on timing?

Not exactly sure on ETA, but it's been in the queue for about 7 months now with prototype done. Even with 9 CNC's it can take a bit with all the different products being made at the same time LOL. Hopefully in the next couple of months

[ActiveMonkey]