32 Gtr Stock Rubber Fuel Line E85

[endless]

Guys got a question about replacing rubber fuel line on a 32 GTR. Going to replace all the rubber sections with e85 compatible, who has done it and knows approx how many meters of rubber hose required for the job? Yes i'm lazy Cheers in advance

[Hadouken]

lazyness doesnt cut it around here.

So I recommend 20 meters of garden hose

[GTSBoy]

more than 9000

[KiwiRS4T]

If you're so lazy just leave the stock lines alone. They will be fine.

[Missileman]

what about the in-tank lines? the outside ones have inner and outer layer, the inner is impervious to most fuels, ethanol include, but I thought the outer layer was not?

[sneakey pete]

I've not replaced my lines outside of the tank, no issues

[endless]

I'm lazy but not ignorant to all the E85 filter gunk jelly issues i'm see people have. Just want to minimize downtime, order me some gates goodness. Ain't got access to a hoist like some of you lucky buggers

[endless]

Have you checked your fuel filter since Pete?
How long you been running stock stuff for?
Are you sure the factory rubber hose has never been replaced on your 32?

So so many variables involved it's not really as simple as that

Was only planning to change external rubber lines as they would have suffered the most exposed to the elements.

[MagicMikeZ32]

Do it once, do it right.

Buy shit, buy it twice.

[endless]

Yep all i want to know is how many meters of gates barricade to buy. Lol love this forum such entertainment!

[GTSBoy]

Well, how much do you reckon? There has to be <1m at the rear and <1m at the front. So if you bought 2m you'd hardly be bankrupting yourself and probably not wasting much.

[endless]

Trying to avoid the gamble hence the thread. Just don't want to be midway and run short is all cos gotta order the stuff online!

[Jordy32]

Buy 5m, you'll be fine

[KiwiRS4T]

Yep all i want to know is how many meters of gates barricade to buy. Lol love this forum such entertainment!

From the Gates website:

" 85 percent Ethanol with 15 percent gasoline is not an aggressive fuel with respect to rubber compounds"

Just make sure you change your filter early and then again before much longer.

[STATUS]

Factory lines are fine, if they have been replaced then go e85 hose just to be sure but the factory nissan stuff is fine.... mine sat for months on end and had been running e85 for years all on the oem hoses.

Probably done 100-150 E85 conversions with no issues on nissans with factory OEM hose

[Hadouken]

I'm going on to 4 years on oem hose. No issues here.

[endless]

Interesting. Glad i made this thread then. Cheers lads!!

[sonicz]

I believe the cause of problems like the black goo with e85 was too high a fuel temperature, not stock rubber parts being deteriorated. I,e having an in-tank fuel pump and flowing a lot of fuel raises the temperature of the fuel to the point its almost boiling and during the spray pattern something burns of wrong and sticks to the injector. Out of tank pumps with cooler flowing fuel did not have this goo problem as much. I dont think it was ever a case of rubber melting.

Rust on the other hand...Has anyone opened up their engine after years of e85 and checked for rust?

[scotty nm35]

How do you explain one injector only out of 6 having black gunk on it?

How does your explanation of hot fuel causing gunk to come out of suspension explain why the injector tips build up, and not the internal filter?

My fuel system has been hot, damn hot many times at the track, and on the dyno, I have never had an issue other than having to re-prime the fuel system to start. Never any rust either. I guess the Hydroscopic nature of the fuel doesn't matter at all seeing it's only in the tank for a month or two in my case, in fact it makes sure there is no water in the tank at all.

Not having a go, but all these misconceptions aren't helping unless you have some kind of proof, as evidence I have seen first hand rules them all out.

[sonicz]

No offense taken scotty, I am never bothered about things like people "having a go" or not.

I don't claim to know any of this for a fact, just throwing out bits of information which may end up being helpful to some. I can only guess as to why one of the 6 injectors is doing it, maybe it had a slightly different spray pattern to begin with, or maybe it was just in the right place at the right time. Maybe in the same way you get vortexes within certain areas of a swimming pool, maybe you get the same within the fuel rail and the location matters, not just for streams but for temperature difference as well.

As for why the tip and not the filter, well the tip is where the action happens, and the fuel gets atomized, experiences a pressure change, temperature change, mixes with a new environment etc. Prior to that its all pretty uniform stuff, kind of like how a Volcano only starts to smoke and clog up at the tip and not as its making its way through the earth.

The only reason I brought this up is I was personally curious as to what the reason was injectors were dying out with e85, which happened to me on a number of times, and there is 100s of theories and the exact number of counter theories to those theories, but what I came across that was most striking was that the people, all other factors identical, people with inline fuel pumps were having the issue much more than than people with external fuel pumps.

All the components and materials were identical, the only variable changed was fuel temperature at the injector tip, which was always higher with the in take pumps, and it coincided more with the goo. I haven't confirmed any of this it just made the most sense to me so I thought I would share it.