Pushing my fuel pump to the limit?

thelonebean

Just a slow 99
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Sep 12, 2019
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289
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California
Hi all, my car was sitting at 471whp with a svt focus fuel pump and a kb boost a pump with 42lb injectors on 91. I’m getting a new tune very soon for my new dw95’s and a pmas hpx maf but I want to get my money’s worth. I have a d1sc laying around I want to slap in instead of my p1sc but I’m not sure if my fuel pump can take it. Last time I checked in a datalog, my fp duty cycle was at 65% at wot high rpm. You guys think there’s room for my d1sc and if so what pulley is safe? I’m thinking 3.6 to 4.0 pulley but I could be wrong. I’m also staying on 91 so no e85 yet. Let me know, thanks in advance.


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Last edited:

01vert

Active Member
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Mar 23, 2004
Messages
1,251
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MA
Your tuner should be able to recommend what pump will work with your new goal. Talk to him before anything
 

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