E85 Question!

[Michael's R33]

Hi guys I currently have a standard bottem end 33 gtst

Mod list in

Pfc z32

Bosch 044

660cc injectors

Op6 highflow

Tuned at 250kw injectors currently hitting 64% duty

Question is do I have enough headroom for e85 with these injectors or do I need to go bigger also what else needs attention before I head down this path

[Ben C34]

You need 40 percent more fuel flow with e85.

[omnigear]

1k or more for inj?

[Michael's R33]

Thanks ben ill look into getting bigger injectors other than that will the o44 on its own flow enough?

[Hadouken]

044 will be fine. Mine is pumping 340kw on e85 and id 1000 injectors. You should get them

[GTSBoy]

044 is not rated for E85 and will die an early death. Best not to take the risk and put an ethanol compatible pump on it on a "just coz" basis.

[Hadouken]

That's abit broad. What is an early death? 2years? Thats mine Thus far and cars are still spot on.

[Hadouken]

Afrs*

[SiR_RB]

Just chuck in a walbro e85 pump and 1000cc injectors

Done

[Piggaz]

That's abit broad. What is an early death? 2years? Thats mine Thus far and cars are still spot on.

Not sure if it was coincidence, but my primary feed pump got a bit lazy after I put the engine back together. It was sitting around for 10 months between when I popped the engine and got it back together. I only picked it up because the fuel pressure was falling and afr's were leaning out before the secondary feed pump came online. If you have a look for if, 500 working hours the 044's are rated at on E85 fuel.

[Hadouken]

Hmmmm... That's interesting piggaz. I'll see how mine is going this time around. I've been away for 6 months so it's just been sitting.

But if I see the Afrs leaning then I'll remove it.

[wolverine]

660cc should be fine with an E85 safe fuel pump to supply a hiflow turbo.

[Dose Pipe Sutututu]

Depends how much power you want, but I would say 660cc injectors won't get you far.

I'm using 875cc injectors and I'm at 92% duty cycle with a Hypergear SS2 turbo.

But if you're getting the E85 itch just drop in 1000cc injectors and a Walbro 450 E85 pump.

[GTSBoy]

That's abit broad. What is an early death? 2years? Thats mine Thus far and cars are still spot on.

The word from Bosch is 500 hours.

[Hadouken]

Crikey. 500 hours is much less broad.

[scotty nm35]

I imagine just being submerged in the fuel isn't the issue, the bronze bush bearings will fail after a while without the lubrication of the petrol. Stick to pumps designed for ethanol/methanol and you will be fine.

[Simon-S14]

044 is not rated for E85 and will die an early death. Best not to take the risk and put an ethanol compatible pump on it on a "just coz" basis.

044 would have to be one of the most reliable pumps to use on E85.

040 on the other hand die left right and centre on e85

[SargeRX8]

Yeah the 040 doesn't seem to like any ethanol content. My pump is 2 maybe 3 years and its probably not running up to spec.

[Blackkers]

660 is definitely on the short end of the spectrum for that turbo on E85. It might restrict your boost to around 18psi. Hard to say

I use 1000cc injectors and 81% duty cycle with a 21U highflow 306rwkw. But my fuel pump isn't the best.

You could bump fuel pressure up perhaps. but I'd be looking into a set of top feeds

[STATUS]

run a little e85 safe 2 stroke oil in with each tank to save your Bosch pumps.

This is the shizzle here https://www.motul.com/system/product_descriptions/technical_data_sheets/136/original/Micro%202T_GB.pdf?1290086772