E85 carbies?

[Taz]

Just a quick question - has anyone here converted their carbies over to E85? Ive got a couple of 40 dellortos im about to put on and seeing as how theyre already on the big side for the 32, i was thinking to going over to E85 if theres a kit out there or they can be custom modified at a carby shop?

[yno26galant]

Best bet is to stay away from it. Highly corrosive and will deff eat away at the plastics in the carby. Why do u want to go e85? Ive been told on non boosted cars Theres no real big advantage on running e85 especially carby

[Taz]

At some point down the road ill be putting twins onto them, but i was just curious if it has been done before on a carby 4g32. Ive heard theres a lot more additives in todays E85 that cut right down on corrosion in rubber and plastics over the older stuff, and being a weekend racing application it wont see many miles put on it so i wasnt too worried about that aspect.

[Scorpma82]

The e85 is better and less ckrosive compared to yesteryears, but unless ur running a boosted engine, then the gains are going to be minimal for the cost required to run them

Also, trying to run e85 on the weekend for racing and regular driving during the week....the car will never be properly tuned..... The two fuels have too different characterists with things like burning rate, combustion temperature, fuel economy, air/fuel ratio etc

My advice would be to tune the car to a readily available performance fuel (PULP for eg)...and stick to that....it will save u a heap of headaches

[Taz]

Hey scorp as I said earlier the car won't be driven around town. One of the only points of it having rego is so I can drive it to the track. Beyond that I might take it out for a few weekend drives every so often, but it will still be on E85 I'm not fussed about that.
Just wondering if there was/is a readily available way to convert them over without spending a fortune on an all custom job nobody has done before. I'll take it no one here has done it yet?

[Scorpma82]

The process is exactly the same I believe....the engine/carb just has has to be tuned/jetted accordingly via (preferrably) carby specialist with a dynometer/oscilliscope/gas analyser

[Taz]

Has to go to a tuner for the twins when theyre put on anyway, so ill just take it to someone who can do that as well while its there. Id imagine id only need to rejet to the 45s, but we will find out when it goes in i guess
Thanks

[Superscan811]

My triton was running E85 through Motorbike carbs. All it requires is approx 30% more E85 than petrol. This is just jetting. As for eating plastic, rubber, steel etc.. It absorbes water and will actually eat the rust out of your tank and steel lines. It will SLOWLY perish rubber, but you should replace all the rubber hoses in cars older than 30 yrs. Also, for the first 2 months, CHANGE YOUR FUEL FILTERS WEEKLY. the $5 Supa Cheap filters are perfect for this. because a
ll the rust and crap the E85 removed will be deposited into them. I speak from experience on that.

Cheers.

[Sigmaproject]

You guys are lucky. I cant even buy E85 in my area. Even the 100 ethanol blend that United was selling locally is no longer available. Now they just stock the 98 unleaded.

[BIG26L]

From a racing perspective, it is the same as using methanol. You need to drain the tank of E85 and run the car on gasoline after each event for 5-10minutes to flush the E85 out of the system so that it doesn't absorb any moisture and leave gummy deposits in the fuel system.

We do this on my brother's injected clubman race car using 2 fuel maps and an Eflex sensor in the fuel line.

We haven't had any issues yet but it is a lot of mucking around if the car is naturally aspirated, unless of course your running 12+:1 compression ratio's, etc..... For the horsepower gain in a boosted application it is well worth the effort for just changing pumps and injectors.

[Taz]

Either way, ive since sold the carbies and moved to a 4g64T setup ;)

[Belial]

Just found this thread...
If anyone want's some serious carbie conversions or set ups, I know and have used a guy in QLD that does "All out" race carbs but can rebuild/tweak what you have.
I know him from the "Ford V8" scene but a carb is a carb.
Easiest way for you guy's to find him is check his facebook page.
https://www.facebook.com/pages/Zok-Race ... 34?fref=ts