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questions on injectors

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Old 08-07-2010, 05:09 PM
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Default questions on injectors

doing 383 N/A build with 150-200 shot on it have a walbro 255 already i am shooting for 450RWHP then the shot on top of that once i get tranny and rear end beefed up a bit. will 42# injectors be enough or do i need to go bigger. or can you have too big of injectors??
Old 08-07-2010, 05:54 PM
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Too big of injectors make idle tuning a little harder. Are you doing a wet or dry shot?
Old 08-07-2010, 05:58 PM
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it will be wet
Old 08-08-2010, 04:16 PM
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Which model exactly? A green top which is called a 42# is actually 50# or so at the stock 4bar fuel pressure. If thats what youre talking about that should be just fine.
Old 08-08-2010, 06:56 PM
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Originally Posted by Cheatin' Chad
Which model exactly? A green top which is called a 42# is actually 50# or so at the stock 4bar fuel pressure. If thats what youre talking about that should be just fine.
Yep. A greentop would work with either a wet or dry..... If it is a dry shot you will need a bigger fuel pump too....
Old 08-10-2010, 07:01 PM
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You're pushing it with a 255lph with an engine that could make 450+ to the tire AND a 200 shot . It can can be done but I wouldn't do it on my car...




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