Jump to content
SAU Community

Recommended Posts

Hey guys

Been trying to find out how practical a e85 conversation would be for my na r34

Like wether it's worth the money or not

I have found stuff on turbos but nothing for na

I'd like to get a bit more power out of it whilst I'm on my ps and im getting it ready for a turbo later on

Cheers

Link to comment
https://www.sau.com.au/forums/topic/450784-e85-on-rb25de-neo/
Share on other sites

Is your car stock now?

The only thing you would need is a Nistune chip and a tune which could come to $1000 - $1500

I would think that would give you a noticeable increase in power but not a massive one. A well made set of extractors would help but maybe not worth it if you are going to turbo it later. You should probably also get a more modern ethanol friendly fuel pump ($180).

If you do go ahead ideally you would do a before and after dyno run but to save money you could just measure your 80 to 120 time in third gear before and after.

it has a 3 inch cat back now and i will be putting on a hi flow cat soon

so i wouldn't i need to replace any of the fuel pipes or injectors? iv seen that ethanol doesn't mix with rubber very well

and are thoughs 255l/h pumps on eBay any good?

it has a 3 inch cat back now and i will be putting on a hi flow cat soon

so i wouldn't i need to replace any of the fuel pipes or injectors? iv seen that ethanol doesn't mix with rubber very well

and are thoughs 255l/h pumps on eBay any good?

I would avoid ebay due to many fuel pumps being cheap copies and then sold as a big name brand like walbro.

Best to buy from a established dealer like Kudos motorsports etc.

I have seen plenty of e85 conversions done on the cheap, minimal gains but the other benefits can be a bonus. Should even work out cheaper to run.

Simply running 30% larger injectors will do the trick on the stock ecu. Might be a bitch to start in the dead of winter though. Injector pulse width adjustment boxes are a cheap option also, but they need to be 'tuned'. (Like injected gas systems) or even bumping the fuel pressure is an option...

It can be great fun playing with ethanol via simple methods, but I suggest you get a wideband fitted at least, just to check your wot mixtures. $130us for the WB o2 unit is hard to beat.

  • 2 weeks later...

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

    • Yeah i have R34 with factory small box and now RB25DET NEO swapoed and iam planning to upgrade to big box.  So i would be good as long as i do not change diff? 
    • Based off what you’ve said here, I think I’ve figured out a good bit of what I’ve done wrong -  So on the line going from the PCV valve to carbon canister, there’s a T joint that is pretty much right next to that lower port - I hadn’t noticed that the hose in the diagram was curved to attach onto the carb, so I was putting that line for the lower port onto the PCV line / carbon canister line instead. I’m going to have a flick through the manual again tomorrow and should hopefully find a diagram that’ll show me where that T joint should be connected to. Timing also 100% needs to be sorted out as well, should be able to tackle that tomorrow as well. Definitely feel like I should be on the right track now though. 
    • The screw is for idle (pilot circuit) mixture adjustment. Else, I'm confused ~ the diagram shows 2 carby ports, and the intake manifold port, but you're suggesting the "2nd port on the back of the carb that isn’t mentioned in the diagrams" ...yet, both carby ports are shown...que?... ...in any event, that port should be connected, but if not (like it is now), it's unlikely to cause a backfire out the carby (it would introduce false air and give you a fast/lean idle) ...sounds more like timing issues/spark plug wire routing responsible for the backfiring.    
    • That's fair, I can see both points. I get enthusiastic when I see the FS section has a new post and want to see what interesting thing someone is selling. Then I get deflated it's a bump of a 10 year old post. Ha ha
×
×
  • Create New...