E-85 on a stock 370z?

Whjaxn17 · 06-27-2020, 10:59 PM

Quote:

Originally Posted by JeffP-Z

Stupidity in reality....but I was looking to take advantage of the marginal HP gain I would have expected. But as I may have already said, I leaped before I looked...bad plan! I was getting beat out there by guys with much better builds and thought it was a quick easy way to make more HP. I am too impulsive sometimes and it got the better of me this time. Add this to experience category and keep on keeping on. Fortunately I am a persistent SOB and wont quit till I get this right. I am on a mission to learn as much as I can now and will try to STFU and read more and understand better.

It's only worth ~10whp NA. I see you've mentioned going TT since I answered and it's worth way more power there, or at least allows for more w/ a comparable safety margin. I'm not sure what you should expect to pick up boosted on E85 over 93 or 91, but Spooler or Hotrodz might could share some experience.

redondoaveb · 06-27-2020, 11:21 PM

Quote:

Originally Posted by Whjaxn17

It's only worth ~10whp NA. I see you've mentioned going TT since I answered and it's worth way more power there, or at least allows for more w/ a comparable safety margin. I'm not sure what you should expect to pick up boosted on E85 over 93 or 91, but Spooler or Hotrodz might could share some experience.

If he's going to run 91 and e85, he'll pick up a lot more hp on e85. He'll be able to run a lot more boost on e85. With my supercharger, I get knock above 13psi on 91 and I can run 17psi on e85 with no knock and could go higher. My 91 hp number is 480, my e85 number 680. 91 octane sucks!

jchammond · 06-28-2020, 04:28 AM

Jeff; Just don’t forget the most important part...the tuning aspect from Ecutek,UpRev or whatever else is capable.
As mentioned earlier by another member; you burn a richer mixture with the increased ethanol content, with wot pulls getting in the single digit AFR’s.
Factor about 30% more fuel consumption over gasoline.
The HP gains N/A aren’t huge, but the torque gains will be more a bit more.
You got some great guy’s who’ve jumped on this thread to help, so I’d definitely be taking it all in

Also, there’s a difference in weather the e85 comes out of the ground or out of a barrel....you want consistency

06-28-2020, 04:28 AM	#63 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 59 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684396	Jeff; Just don’t forget the most important part...the tuning aspect from Ecutek,UpRev or whatever else is capable. As mentioned earlier by another member; you burn a richer mixture with the increased ethanol content, with wot pulls getting in the single digit AFR’s. Factor about 30% more fuel consumption over gasoline. The HP gains N/A aren’t huge, but the torque gains will be more a bit more. You got some great guy’s who’ve jumped on this thread to help, so I’d definitely be taking it all in Also, there’s a difference in weather the e85 comes out of the ground or out of a barrel....you want consistency Rusty, Ghostvette, redondoaveb and 1 others like this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

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