Stock Rb25 Injectors + E85 Caltex Fuel.

[methz]

Recently changed over to e85 from caltex.

currently using high flowed rb25 injectors + aeromotive fuel pump.

car has killed 4 injectors so far. replaced them with stock high flowed ones each time.

Had enough so got tune switched back to 98 pump tune last week and car is perfectly fine again.

anyone had this drama before?

are they not e85 compliant?

[GTSBoy]

Hi flowed injectors are a risk at any time.

[methz]

they have been fine for 3+yrs at 450hp so that is not my concern. e85+ hiflowed injectors is though.

[Hanaldo]

How much are they costing you? Have you not considered just getting some ID1000's? I realize that's not what you're asking, but if you want to run E85 and you're killing stock injectors doing it, why not just go tried and proven?

[methz]

yes i will change injector setup to id's i was just curious thats all.. its really odd that its killing them

hi flowed stock injectors cost about $10 each to do..

[The Mafia]

$10?

Maybe that's why they are dying so often?

[methz]

would it make u feel better if i said it cost me $100 per injector to highflow.. and the person charging the $100 really only cost them $10... still doesn't explain why the e85 is killing them..

do newer injectors have different design to the 19yr old rb25 injectors?

[ARTZ]

Aftermarket injectors are usually tested to run other fuels like race fuels and methanol..E85 is known to be somewhat corrosive like this as well.

I guess it's possible the stock ones haven't been tested for such things, times change as do fuels and fuel components to suit. I believe Injectors have changed quite a bit in the last 20years..update to something more modern and I doubt you will have any regrets..

[methz]

yep its on the books, i just thought id test out the stock injectors and see how far they would go.

wasnt sure if i had a ecu fault or wiring or anything else.. why i wanted to know if anyone else has gone thru similar story.

[Birds]

High flow for $10 lol sounds like they're drilling them out with a Makita

[battery]

I have been running stock hi-flowed injectors for around a year now on caltex E85 with no issues.. They are maxed so most likely be upgrading to some kind of 1000cc option soon. Who's doing the best price on the ID1000's these days?

When you say it kills them what exactly happens? does the car just run rough/miss?

[linkems]

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Edited May 28, 2012 by linkems

[methz]

u can get id1000 kits from states for around $950 rail n adapters etc.

yeh it killed 3 in cyclinder 2 then 1 in cyclinder 5 last week.

basically it runs fine... slowly gets worst.. slight miss on de cel and light accel.

then it will completey drop that cyclinder all together at any given time and wont come back and the injector will be dead. replace it with another hi flowed one and away i go again.

switched back to 98 tune 3 days ago done 75kms so far and drives perfect.

[battery]

u can get id1000 kits from states for around $950 rail n adapters etc.

yeh it killed 3 in cyclinder 2 then 1 in cyclinder 5 last week.

basically it runs fine... slowly gets worst.. slight miss on de cel and light accel.

then it will completey drop that cyclinder all together at any given time and wont come back and the injector will be dead. replace it with another hi flowed one and away i go again.

switched back to 98 tune 3 days ago done 75kms so far and drives perfect.

So on average how quickly is it killing them?? i find it hard to believe that they are failing due to corrosion inside of a week or two...

[methz]

car had been tuned on eflex for roughly 2 months. within the last 2-3 weeks is when the first one played up. then it killed 3 within space of 1-2weeks. and i went to powerplay last weekend, and 1 injector i replaced on the friday, lasted me all weekend ( 900kms driving + 27psi ) then got home and it died the next day. then went to my tuner n got tune switched over 3 days ago.

[ARTZ]

Do you normally run boost that high?

[methz]

yeah around 1.8bar have for along time. whys that?

[ARTZ]

I dunno just had a crazy idea that an increase in boost may be causing it somehow..dont matter, its not...

[WMDC35]

how much fuel pressure? maybe fuel pressure plus the 27psi is too much?

[methz]

nah i run same boost on pump 98 tune aswell so i dont think that would be the answer.