What injectors for more RPMS out of a TSP224R?
 

So have a pre 2002 engine so smaller then 24lb injectors and would like to turn an extra 500-1000 rpm out of my engine if possible and was told it was going to be my injectors that would limit me. Everything is up to date in my signature, and currently tweaking the tune as it is. Looking for any help direction or suggestions.

Would these work:
48lb injectors

RPM's
 

you only need to change inj if your running out of fuel in the upper
rpm range . what is you cams top rpm ? where does your eng
quit making power ? have you dynoed it to see what you have know ?
don't waste your money on something you may not need. at the most
you prob can use 27lb inj from a 350 LS1.

That probably would have worked and thanks for all the further question to think about, never though about injectors until the week I started this thread.:hail:

based on 4000ft altitude I didn't need to go much bigger, but I move every couple of 3-7 years, so bigger isn't bad. Not exactly sure on cams max out put did see a dyno somewhere someone's engine topped at around 7,200, wether or not that's the case for my engine I won't know till I raise the limiter, which Jason@bb is working on.

Ended up getting stock 8.1L 36lbs@4bar(5.3stock psi) injectors from fuel injection connection, and a very good price, I thought. :guns:

RPM's
 

call TSP and ask what the red line is ? prob 6200-6500
cam determines RPM's not inj's did you install new springs also ?

do you have the part number for them?
how much did they cost?

These are stock 8.1L truck injectors. Part number is there. It's what I'm running on my truck.
Attachment 97349

I also have a set of 2008 non flex fuel LY6 injectors that came with my nnbs intake I can get the part number for that later.

I have some 42# injector I could sell u. I've put down 480+rwhp with them spinning to 7200. Pm me if interested. ill let them go cheap since I'm going turbo now.