Maybe someone had it done already, to run a cosworth on E85. It`s also good for a few more bhp, so it must be worth a try

Any Ideas??

 

hello

what do you mean by E85? - i'm not sure what E85 is

 

LHD220Turbo- then why reply?



MannheimAlex- E85 will work on anything as long as you have a suitable fuel system and mapping. It's particularly good on turbocharged cars as it's more knock resistant than typical pump fuel.

 

i think denis from tdi was going to run his escos on e85
cheers james

 

The irony being your signature is spot on. The answer is pretty simple by the looks of things; he posted asking the OP what E85 is.

 

I think Dennis from TDI was also going to fly his car to the moon

 

why do you always have to be so bolshy? i replied because i didn't know what it is

clearly some are here to learn

why don't you enlighten me rather than post pathetic replies? no doubt you'll come back with another sarcastic comment or not reply at all.

 

If you are running E85 you need about 1.5 times as much fuel compared to running petrol.
You may need larger injectors and fuel pump.
For more info see: http://en.wikipedia.org/wiki/E85_in_standard_engines

 

I knew it needs more fuel, but bigger injectos re not really big problem. Maybe it is the mapping that is difficult?!?

Btw. E85 is mix of ethanol and gasoline ^^

 

Mapping of an engine for E85 is not more or less difficult than mapping it for petrol.
However, once mapped for E85 you cannot switch back to normal petrol!
The only way to do that would be to have an ecu with 2 mappings inside, 1 for petrol, 1 for E85 and a switch on the dashboard.

 

i'm gonna try this next year, you need ca 30% more fuel than with gasoline.

e85 is simply 85% ethanol and 15% gasoline, the reason for the 15% gasoline is cold-start issues.

my mapper told me that my engine would see about 70-80 hp more with e85 (it's now at 375 hp @ the hubs.)

im gonna have 2 programs for the ecu, one for regular gasoline and one for e85

 

E85 isn't easily available in the UK or i'd be considering it!

 

lhd220 turbo, don't take any notice, ignore people like that.
E 85 is readily available in certain parts of the uk at Morrisons, E85 has been played with by certain people, there are also cars that run E85 AND std unleaded, as thier ecu's contain not 1 but 3 maps, as std, so just a switch flick.
Yes it does give benefits, but it's not as clear cut as it seems, it has been used on turbo cars running aftermarket 3d systems, and fully mapped to suit each fuel.
One of the cars that this was done is is for sale as well, a 924 turbo.
tabetha

 

Hi Chris; long time no speak!

it'll be interesting to see if e85 was more readily available through the UK, i wonder how many people would use it

i guess you ECU supports multi maps?

Matt

 

Yes mine as std is 3 maps, all mapped for £280 for all three, by same people who have done the E85 testing, and who designed the ecu as well.
tabetha

 

You'd want high compression on a YB before you went E85 really, 8:1 really isnt enough to excite E85

I know a couple of lads running it on vauxhall turbo engines, and they are getting good results.

 

on what car?

 

It has worked well on I think 7.6:1(?), but was a few mods to ignition that are not std.
Going to find out a bit more.

 

It works better with high compression, you'd be running out of the ability to add iginition advance at high rpm at that CR

 

That's a bit of a broad statement. It depends on the complete spec of the engine. The facts are, if you're running an engine on pump fuel which can't run more than say 12 degrees of advance, putting it on E85 will allow you to run more advance but quite possibly not to MBT still (which is fine).

 

I think higher compression would`nt be a big problem, cos e85 has a higher octane rating, so it starts knocking a bit later.

 

The question then is what is better?

7:1 engine on 98RON hitting det at 14 deg?
8:1 engine on 98RON hitting det at 10 deg?

7:1 engine on E85 hitting det at 18 deg?
8:1 engine on E85 hitting det at 14 deg?

 

you missed my question

 

On any performance turbocharged car!

 

Has anyone done E85 conversion to a Cosworth? Does fuel lines need changing etc. for E85 as it's basically alcohol and it should corrode stuff easier than basic pump gas. On top off that, car might need bigger injectors as it requires around 30% more E85 than pump gas to achieve right mixture. Atleast the performance gain should be pretty good, biofuel Saab's usually make 20-30 hp and 30-40 nm more with E85 than on normal gas.

 

how does E85 affect rubber seals, gaskets, etc

 

Some people claim ethanol corrrodes them and they should be changed, and some people claim that it doesn't.

Anyone know exactly what material Cosworth fuel lines are, aren't the lines going from fuel pump to fuel rail mostly some metal and small portion just before fuel rail looked like it was plastic which I've heard should be fine with E85?