OK i've been using the stock TPI fuel pump in my 87 for the past 5 years with the LT1- no issues at all.....it only recently occurred to me that the fuel pump is now 25 years old! Since i am swapping out the rear axle in the next few weeks i thought it would be a good time to dig out the fuel pump and replace it....the question is should i look for a higher flow rate pump? future plans include either a bigger cam/rockers...or maybe a procharger.....i really don't want to have to do this again for obvious reasons......so any thoughts? thanks pat

 

Walbro 255 it, and call it good

 

what kind of flow rate do they put out in comparison to stocK?

 

don´t forget the fuel preassure regulator if the stock don´t can handle the new pump

 

Trust me the stock **** can handle the piece perfect, no fuel pressure regulator needed man. Next time comment when you know for sure.

 

okey so the stock regulator can handle a walbro 255 pump? maybe ot but the ls1 engine does require a new regulator? i did mixed it up with the ls1 and lt1 engine.

 

ok so the walbro is the way to go? i installed one in my son's 3000gt and it failed 6 months later.....replaced it with a Denso...no problems yet...

 

if you go forced induction a external fuel pressure reg. with the 1:1 rising rate is a good idea .