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1200cc injectors for e85 and stock 8 ECU...injectors to big for stock ecu??

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Old Jul 29, 2008, 12:18 AM
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1200cc injectors for e85 and stock 8 ECU...injectors to big for stock ecu??

OK... so I have looked into EVERYTHING about e-85 that I can find, and it is time to make the switch!! My only question is.........

CAN I GET AWAY WITH RUNNING 1200cc INJECTORS WITH THE STOCK EVO 8 ECU??

I know 1000cc injectors will work just fine, but ams prices are $400.00 for 1000cc and $400.00 for 1200cc... So i figure why not get the 1200cc, but I want to know if they can tune them on the stock ecu?

My mode list is below.. I have cams and adjustable cam gears so I figure they should be able to do it. I talked to the shop and they said that it probly would work, but he has never done 1200cc for e-85. He said he has done 1000cc lots and that 1000cc tune just like 1200cc. He also said that he has tunned 1200cc for e-85 on the AEM EMS... and that they tune 1600cc on stock dsm ecu which are simular to evo ecu.

So has anyone else done e-85 switch on 1200cc injectors and stock ecu? I did read about one other member using 1150cc and not having a problem.. but that is only one story.... help me out!!
Thanks!!
Old Jul 29, 2008, 05:25 AM
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Link to another EVO running 1,200cc on E85 here.

It should not be an issue to tune the OEM ECU with 1,200 cc injectors. However, unless you plan to upgrade to twin fuel pumps and a much bigger turbo, I would stay with 1,000cc.

Just because you are getting a 'bigger' size injector for the same price is not a good reason to go big. Size your injector to what you need, plus a reasonable margin, and go with the correct size.

Kind of like buying pants, buy the size that fits your waist even though the XXL is the same price.

Old Jul 29, 2008, 05:29 AM
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I'm on 1200cc injectors and e85 w/ stock ecu. It works just fine, you just need a good tuner.
Old Jul 31, 2008, 02:30 PM
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would 1000s with a single 255 be enough for a conservative tuned evogreen?
where the hell is warrtalon.
Old Jul 31, 2008, 03:25 PM
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well I have just decided to go with 1000cc anyway.. better to play on the safe side!
Old Aug 15, 2008, 10:17 PM
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can i run 1200cc on a single walboro on 91oct? and later upgrade to twin walboro when i get e85 tune? don't mean to thread jack

Thanks
Old Aug 16, 2008, 09:25 AM
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Originally Posted by myevo8urcar
...
CAN I GET AWAY WITH RUNNING 1200cc INJECTORS WITH THE STOCK EVO 8 ECU??
Its pretty much what Jim in Tuscon said. It will work, but unless you have plans for a big turbo (something more than an EvoGreen), you're better off with 1000 cc/min.
Old Aug 17, 2008, 01:44 AM
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Originally Posted by bchappy
would 1000s with a single 255 be enough for a conservative tuned evogreen?
where the hell is warrtalon.
I'm currently at 95% IDC with RC 1000's, with a single 255 on a FPgreen with E85
Old Sep 28, 2009, 07:11 AM
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do you need e85 specific injectors? i read that some are no good with e85
Old Sep 28, 2009, 10:41 AM
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You can run bigger than 1000cc injectors with a stock ECU, its just gonna idle rough. I would stick to 1000cc max. I am running 880cc on mine.
Old Sep 28, 2009, 03:55 PM
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Stop posting misinformation, please. I run 1250s on the stock ECU and they don't 'idle rough'....both on pump gas and E85. I know people running even bigger and they idle fine. It matters on the quality of the injector and the quality of the tune.
Old Sep 28, 2009, 07:40 PM
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Originally Posted by maxims4g63
do you need e85 specific injectors? i read that some are no good with e85
I have read this as well, but I haven't seen anyone have issues with any particular type of injector and E-85 usage. Personally, I use FIC 1250cc injectors.

And as l2r99gst mentioned, larger than 1000cc injectors aren't going to automatically cause a rough idle. With proper tuning, they can be made to idle as well as stock (even with cams and other mods).

Finally, just so everyone is aware, the original post/thread is over a year old.
Old Oct 5, 2009, 08:46 AM
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Originally Posted by 97TSiAWD
Personally, I use FIC 1250cc injectors.
the fic blue max? ive heard good things. i was thinking about going 1250cc also.
Old Oct 5, 2009, 10:40 AM
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Originally Posted by maxims4g63
the fic blue max? ive heard good things. i was thinking about going 1250cc also.
Yep. They have worked well for me, and I have heard good reviews from other members. I got them from MAPerformance.
http://www.maperformance.com/fic-blu...i-dsm-evo.html
Old Oct 5, 2009, 10:43 AM
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i have 1000cc injectors now....planning to switch to 1450cc injectors and a inline fuel pump to feed 30psi to my 35r on e85 stock ECU


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