fuel system upgrade

[Bill_L]

At what point do you start to need fuel system upgrades?

Can you do injectors and a boost fooler without it?

Can you do a fuel box and injectors or just the box with stock injectors?



What combo can you get away with before you need upgrades? I know there are large debates on which type of upgrades to do on the fuel system.



I looked at the kits from Jannetty Racing and wasnt sure what all I would need since they have a lift pump kit and a pusher pump kit as well as install kits for each.

 

[LSMITH]

Bill, the rule is as long as you have some pressure to the injection pump you are doing OK regardless of what you have hooked up or put in. I personally would not be real comfortable unless I was seeing 5 or 6 PSI at WOT and 2500 RPM or so. I have seen a TST Pmax 3 Comp version with 275 injectors to the tune of 375HP or so running 8 PSI at WOT with the only fuel system mod being banjo bolts. Let your fuel pressure gauge determine how much more you spend, it will be a lot less than you think. Hope this helps.

 

[csutton7]

Bill---this has been thrashed alot---and I think most think that the stock system can handle around 325hp or so with maybe doing the bored out banjos or better yet doing Brandon's -06AN lines and above that you may want to redo the supply lines to something larger---there are guys who've done very little and are running around 400hp and others who've gone extreme(yes that's me)---good luck---I think anytime you can remove restrictions it will help and not to mention relocating the stinking transfer pump----chris