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injector question

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Old Jun 7, 2008, 03:10 PM
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injector question

i am trying to find out how much horse power can 680cc injectors support??? thanks
Old Jun 13, 2008, 03:20 PM
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They should hold about 117hp per injector, so for the evo that would mean a 470hp engine, according to the website below.

Click here, scroll down and read the part about sizing up injectors
Hope this helps and you can refer back to this for future reference.
Old Jun 15, 2008, 09:19 AM
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400-420 whp. No more than that with just pump gas.
Old Jun 29, 2008, 07:31 PM
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Originally Posted by mrfred
400-420 whp. No more than that with just pump gas.

+1
Old Jul 5, 2008, 04:13 PM
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680's were about perfect for my evogreen turbo setup which made 405awhp on 93 octane. IDC's were getting on up there so running race gas and loads more boost was out of the question.

now I have a 35R and quickly outran the single walbro and 880's when I got to 500awhp, so now I have twin walbro's and 1000cc injectors. IDC's are in the mid 80's currently.

I have a BR stage 3 head and BF 272 cams to go in soon, i suspect I might have to go to 1200cc
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