Thread: SR20VE+T E85/93 Comparison (Log manifold/GT3076R/NismoTronicSA)

Bingo.

Great minds think and reply on the same level lol

This is interesting. Would I need to do any prep work for the switch to E85, or can I just drain the tank and fill it up with E85?

I've already got a Walbro 255lph, aeromotive fpr, AN -6 fuel lines connected to the hard lines on the firewall, and an inline filter with a screen. However, I've done nothing to the lines on the fuel tank.

The lines are fine, just make sure you have enought injector. At least 33% more than you'll need for your goals on pump.

I have read many times on this forum that a log manifold on a sr20ve is bad and will not make power but looky what we have here.

Good to know.

10 hours on fuel filter?!? Does E85 eat away at the standard fuel filters material?



E85 cools the engine, heat is main issue with logs/bad flowing manifolds.

What we normally do is disconnect the return line from the regulator and then run a line from the regulator to a gas can and start the car and let the car pump all the fuel out of the tank. You can get it down to where you hear the pumps start to change pitch (meaning it is running out of fuel).

Then simply put 5-10 gallons of E85 in it and start tuning! You need to make sure you double check your AFR after your first fill up with E85 and make sure it doesn't lean out on you (if you had a bunch of left over gas in the tank when you tuned it).



The only reason this made any kind of power is because of the E85, if you look at the pump gas tune you can tell it is definitely struggling to make decent power at the boost level it is at.

E85 does wonders on cars with flow restrictions in the turbine side of things and definitely helps the engine to be over all more heat efficient.

I've been running E85 for years with zero issues. Definitely made a big difference with my car.

So it is safe to just fillerup with e85? I thought it ate away at the old rubber and caused metal gas tanks to rust?

After having an SRT4 with E85, 28psi of boost on a 50 trim with just a very basic setup, it was making 450whp and over 500ft lbs of torque I just couldnt deny the facts. Tried to retune that same setup and boost level on 93 pump gas and just kept getting knock, that was with an 11.2:1 a/f ratio on pump, I would have had to take away soo much timing or lowered the boost to the point it wouldnt have made anywhere near the power. With the e85 i tuned it to 12.0-12.5:1 even under boost up top and zero knock.

Lets just say Ill be using e85 for street use with a 2.2L 12.5:1 comp 6262 VE and see how that goes

Vadim, as for the filter question, most fuel filters are made of a paper type material. E85 will eat away at that very quickly. Might look into an e85 compatible filter that will last a while. I know they make the inserts for the Weldon and other inline fuel filter units. Most e85 vehicles do not use any type of fuel filter other than whats on the inlet of the fuel pump.

Also if you have any original rubber hoses, you might want to consider changing them out with new fuel line. Most new fuel hose that is available now a days is e85 compatible.