Best injector choice for 6.2?

[bleucrew6.2]

I'm sure I've seen this before, but can't find the info. Should I stick with 6.2 injectors, or use 6.5's? Engine is stock with exception of dual exhaust. A little extra performance would be ok.

[john8662]

How did you do your exhaust system, what mufflers?

Most cases I'd probably stick with a 6.2L injector, if you've upgraded the air supply and especially the exhaust, then you might get away with a Turbo 6.5 injector.

Best bet, 6.2L injector, you'll get the peformance back that the engine is supposed to see, but isn't due to worn injectors.

J

[bleucrew6.2]

John,
2.5" pipes from the manifolds back. "Turbo" mufflers. No H pipe. Intake system is completely stock, including the silencer.

John

[john8662]

You've got a better exhaust system, you could try the turbo injectors. I did with pretty good results, but that was before I plugged up my exhaust system by installing stock mufflers...

[bleucrew6.2]

What characteristics do the 6.5 injectors have? I'm assuming that they can supply a bit more fuel. Would/could the fuel be regulated by the IP, or not? I don't really have the money to experiment with injectors.

[john8662]

They have a higher pop pressure, and have a larger amount of fuel per spray. I really just left the injection pump alone, didn't change the delivery and felt a slight improvement in power.

The guaranteed way to get this right would be the correct body 6.2L injectors for the engine (long or short body depending on year/application).

J