550's?

[fastaseagle]

Do you guys think 550's with a255 fuel pump is a large enough setup fpr a 20g, s-afc will be controlling everything and a logger. i know i will have to richen things up but will i be pushing the injectors to the max... they say they can handle 400hp?

 

[Red97Eclipseboy]

I'd do at least 650's.

 

[UPGRADED2G]

yes it can. as long as you have a good FMIC/getting a good one, then you will be safe up to 16-17psi. The reason I am saying this is because I know someone who has been doing this for the past year. a AFPR wouldn't hurt either. However 400hp is just not attainable on 550s. You will have to get at least 650s to get even close to 400hp.

 

[LRS95TSI]

u def need to go with at least 650's my buddy had an evo3 with 550's and was close to 100% duty cycle. save urself in th elong run and get some bigger injectors.

 

[Burnett03]

u def need to go with at least 650's my buddy had an evo3 with 550's and was close to 100% duty cycle. save urself in th elong run and get some bigger injectors.

not true. He wont need 650's. its a better choice, yes but 550's will get him there. On race gas it wont really matter what size his injectors are since he can lean it out far on race gas. On pump gas if he wants to run in the 20psi range id say he'll need bigger. My 550's went 12.8 on a 50 trim with the aid of water injection. Duty cycle in high 80%

 

[UPGRADED2G]

I just took a look at your mod list and I definately think you should go with those 650s. I just got a set from FP to go with my TO4B vtrim. Im hoping to pull a low 13s and from what I see, those 650s and some good tuning should dip you into the 12s.....good luck with that.