190 or 255 pump?

[sexystover]

hey all, before you ask yes i did search but couldnt find a definite answer.

my current setup is an hx35 with stock 12cm^2 housing, open t3 manifold , FMIC, gm maf, MAFT, FIC 750s on 12psi

im looking to get a fuel pump soon so i can turn the boost up but this is a budget build so i dont want to spend un needed money.

i have read and been told i can run a 190lph on stock FPR which would help save money, however some people have told me i will need a 255lph for the hx35 to even reach its maximum potential. but then i would have to get an AFPR and such.

also how far can i take this setup on the MAFT before link is necessary? i have an innovate LC-1 wideband and autometer boost gauge so im making sure everything is "safe" while driving but obviously i have no way to monitor knock


just looking to be pointed int he right direction instead of throwing money out the window

 

[ed1380]

To max out the hx35 you do need the 255, but you can run the 190 with stock fpr for now, and just keep the boost lower.

 

[92AWDHX40]

Grab you a 255 with a afpr when you can, and you should be all ready for just about anything youll need in that area.

 

[GsxAZman]

Well with that type of setup you obviously have more control with link than maft. At least get yourself some type of cheap logger. Or does your wideband do that? I know zeitronix has logging software w the unit but not sure about the lc1. Get a cheap palm logger if you cant afford anything fancier right now..

 

[sexystover]

well im not going to buy things twice , i know i will EVENTUALLY get link but for now since the cars my daily i want to just do what i can to keep it safe , i watch my wideband constantly and am at 10-10.5:1 at WOT on the stock pump with the 750s, i know i can lean it out a little but id rather be safe then sorry

 

[miguelmcv]

Go with 255, otherwise just re wire your stock pump and it will do almost what the 190 will do on stock wiring.
Obviously the 190 will bit it but not for much, but saying that you don't want to buy twice, just rewire your stock pump and will flow way more, doing this will save you money and time to log and see what exactly you need.

Edit, rewiring your stock pump will flow way more so you might need to log your injectors and see if you need bigger pump or bigger injectors..

 

[sexystover]

I have 750s installed already so now I just need a decision on a pump

 

[onefast2gdsm]

If i were you id just get the 255. Why buy it twice. The 255 isnt even that much more. Plus diwn the line youd want to get a afpr anyway so get both over and done with. Just my 2 cents.