Ive been having mixed answers on what size injectors i should get, Basically the setup will be gsr engine around 12psi, 350whp. Ive just got so many mixed answers about this im not sure what to get? I was originally going to get precision 650cc high impendence injectors..

 

Rule of thumb is take the injector size and add all 4 together, then divide by 5. This would be an estimate of what the injectors can handle. For your application you should be safe running anything over 550cc and you would still have room to add boost later without changing them. I've never used and aftermarket company (always dsm or rx7) so i can help you there. Here are some OEM options if you have access to them.

1988 RX-7 (Purple top 195500-1370) - saturated/high imp. - 550cc
1989-91 RX-7 (Purple top 195500-2020) - saturated/high imp. - 550cc

hope this helps

 

alright, i guess i will just stick with precision 650's unless informed otherwise.

 

Just curious why not get some ID1000's and you will have plenty of room to grow later on down the road.

 

im not going any higher than 350hp though, i dont see the reason to go that big

 

650s will be just fine for your setup. ID1000s are good but cost more and if you dont plan to ever need bigger ones then dont spend $ that you dont have to.

 

alright cool, thanks for clearing things up for me.