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Here is a nice comparison of the advantages of running E85 on a setup that desperately needed it.
Stock SR20VE (completely un-opened)
Tubular LOG manfiold (RESTRICTION)
GT3076R w/3" DP and Exhaust
ID1000cc Injectors
Walbro 255
Nothing was touched other than converting from pump 93 octane to pump E85 from a station across the street from the shop. I then setup an alternate map to be used for E85 and set the alternate injector size to 650 (current was 900) and imported the primary fuel and timing tables from the pump gas map into the alternate E85 map.
As you can see, boost pressure increased about 1.5 psi and AFR was right on par. This was literally before any ignition timing adjustments were made or the car was leaned out on E85.
This example just goes to show you what some extra cooling from the E85 and the higher octane of the E85 will allow you to net on a restrictive high compression engine!
![](http://www.j-k-tuning.com/NismoTronic/Dynos/Rob%20E85%20SR20VE.jpg)
![](http://www.j-k-tuning.com/NismoTronic/Dynos/Rob%20E85%20SR20VE%20AFR.jpg)
Stock SR20VE (completely un-opened)
Tubular LOG manfiold (RESTRICTION)
GT3076R w/3" DP and Exhaust
ID1000cc Injectors
Walbro 255
Nothing was touched other than converting from pump 93 octane to pump E85 from a station across the street from the shop. I then setup an alternate map to be used for E85 and set the alternate injector size to 650 (current was 900) and imported the primary fuel and timing tables from the pump gas map into the alternate E85 map.
As you can see, boost pressure increased about 1.5 psi and AFR was right on par. This was literally before any ignition timing adjustments were made or the car was leaned out on E85.
This example just goes to show you what some extra cooling from the E85 and the higher octane of the E85 will allow you to net on a restrictive high compression engine!
![](http://www.j-k-tuning.com/NismoTronic/Dynos/Rob%20E85%20SR20VE.jpg)
![](http://www.j-k-tuning.com/NismoTronic/Dynos/Rob%20E85%20SR20VE%20AFR.jpg)
![](http://www.j-k-tuning.com/NismoTronic/Dynos/Rob%20E85%20SR20VE%20BOOST.jpg)