Jump to content
SAU Community

Recommended Posts

In regard to the more fuel argument, even if you do get more fuel in there, the cylinder's the same size so the exhaust gases would be the same volume (unless more volume of air was in there) or would it be less because you know have more fuel and less air?

I never was that good at understanding engines :blink:

If you put more of anything in the front, you get more out the back.

So, Can you run higher compression on E85? Would it yield more results?

Hypothetically, Say you were building and engine and you plan to run it on E85, a stabler fuel should allow for more compression, yielding more power. Especially down low, and off boost.

Of course, I've no idea what I'm talking about.

Furthermore, I guess there's no going back to 98pulp after you build a high comp engine. And on the track, most engines are on boost rather than off. So it's prolly not viable.

But is it possible?

So, Can you run higher compression on E85? Would it yield more results?

Hypothetically, Say you were building and engine and you plan to run it on E85, a stabler fuel should allow for more compression, yielding more power. Especially down low, and off boost.

Of course, I've no idea what I'm talking about.

Furthermore, I guess there's no going back to 98pulp after you build a high comp engine. And on the track, most engines are on boost rather than off. So it's prolly not viable.

But is it possible?

Very possible - we intend on running more compression with the F6 we are building atm, aiming for around 850rwhp on E85.

Very possible - we intend on running more compression with the F6 we are building atm, aiming for around 850rwhp on E85.

i think its more of a reality then a posibility, just look at the compression ratio alcohol / methanol cars run.. over 11:1

So, Can you run higher compression on E85? Would it yield more results?

Hypothetically, Say you were building and engine and you plan to run it on E85, a stabler fuel should allow for more compression, yielding more power. Especially down low, and off boost.

yep for sure.. the higher effective octane rating of E85 means you can squander that advantage either

with higher boost at the top end, or much higher compression to gain more torque everywhere although

at higher compression I guess this would diminish the ultimate boost limit at the top.. where the headline

power figure is made.

Now what you really want is a variable compression ratio engine! that would be the best, especially

if you combine with variable cam timing.

compare the flexibility of a hawk's wing to the relatively fixed wing of a plane! smart variability should be the ultimate

goal of every machine..

i think its more of a reality then a posibility, just look at the compression ratio alcohol / methanol cars run.. over 11:1

Is that N/A or boosted tough.

E85 would be awesome if you were turbocharging a normally N/A car. No need to reduce compression.

ok so i have a rb25+t turbo conversion, with higher comp ratio,

what would i have to do to run this fuel, apart from a tune, bigger injectors?

the car already has the usual mods, bosch 023 pump, Fmic, full exhaust, and getting a remap soon,

thanks, sorry if it has been covered, but 20 pages is a lot of reading lol

put on decat today and run it up again

I cant believe the results mate, amazing!!!

340rwkw out of a .68 housing. Thats GT35R territory.

Cant wait to get mine on the road and tuned on this stuff.

I cant believe the results mate, amazing!!!

340rwkw out of a .68 housing. Thats GT35R territory.

Cant wait to get mine on the road and tuned on this stuff.

Yeah still blows me away....You wont be dissapointed thats for sure

who's up for running E85 for power cruise ? where is the nearest outlet? I was thinkin bout pushing my beast to 400rwkw for power cruise and with standard rb25 cams im going to need to be running e85...

Anthony,

There are two Enhance service stations that sell e85 that are about 15 mins from WSID: Coner of Rawson and Ferndell, South Granville, and Hume Highway, Carramar (south side, just west of Meccano lights).

Anthony,

There are two Enhance service stations that sell e85 that are about 15 mins from WSID: Coner of Rawson and Ferndell, South Granville, and Hume Highway, Carramar (south side, just west of Meccano lights).

thanks charlie..

was good meeting you yesterday, thanks for saying hello!

who's up for running E85 for power cruise ? where is the nearest outlet? I was thinkin bout pushing my beast to 400rwkw for power cruise and with standard rb25 cams im going to need to be running e85...

I am if i can get my engine run in properly before hand.

I have 2x 20L drums that will be filled with E85 that i will be taking just incase.

who's up for running E85 for power cruise ? where is the nearest outlet? I was thinkin bout pushing my beast to 400rwkw for power cruise and with standard rb25 cams im going to need to be running e85...

im keen...need to add a 2nd set of injectors though...and maybe another fuel pump.

who's up for running E85 for power cruise ? where is the nearest outlet? I was thinkin bout pushing my beast to 400rwkw for power cruise and with standard rb25 cams im going to need to be running e85...

/nods

okay.. im going to do the switch back to e85 on the second week of feb.. i went to the united servo in newcastle and asked them about e85, the guy had no idea what i was on about and gave me the nsw area managers number.

Im going to be ringing him up and hassling him :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Sounds like you've got an interesting adventure ahead here with local support if you have trouble! My guess is that, unboosted, you will be OK with a small upgrade like -9. What will happen is that once the stock ECU sees more airflow than it expects it will add a heap of fuel and pull a heap of timing to be safe because it can't understand how it could get that much air without there being an issue. You will see clouds of black smoke and it won't pull hard through the midrange and top end. So, overall it will be a bit frustrating but should be OK. If you are still nervous set the base timing back 2o through the CAS, but it will be even more sluggish everywhere. As said above through...this is not my guarantee your engine won't be blown into a million pieces, leaving you looking for very hard to find parts A better idea is get a computer with logging ASAP, wire in a wide band O2 sensor and a use remote tuner. I've done multiple cars this way and while it is not as good as a specific tune on a dyno they can get it 90% right. I'd suggest if you can afford an R33 GTR these days you can afford an ECU and tune. And if you can't afford that you sure won't be able to afford the rebuild if it goes bad in the meantime,.  
    • Yeah it would be nice if someone took the time to put that sort of information together, but there are a lot of variations in looms. I think you are making this way hard for yourself if you just want to get it running....sourcing an SR20 with the right wiring will be a billion times easier than matching the RB loom to an S15 chassis. If you do end up going this way, you just need to trace every wire in the loom with a multimeter, 95% of them will go to a location you can confirm at the ECU.....and then post it up for the next person who needs it  
    • Just top it up with water, and keep a general idea of how much you added. It is normal for water to be pushed into and pulled out of the reservoir through the cap, and it should not be more than half full or it will be likely to overflow when hot. Any decent mechanic can do a pressure test of the cooling system to confirm if you have a leak. Keep in mind if it is only leaking a little and when hot it may well evaporate before you see it hit the ground
    • I'd ask the shop what they used and use that. Mixing coolants is sometimes OK, sometimes not, and you have know the details of each coolant to know whether it's a good idea or not.
    • Is it alright to top up with just another green coolant?
×
×
  • Create New...