How much boost...
 

...are dsm 450cc injectors good for? If I am using an SAFC and no other fuel system mods (fmu, aftermarket fuel pump)?

How much boost will the 450cc injectos be good for WITH an upgraded fuel pump? Thanks!@ ;D

Re:How much boost...
 

you dont need the fuel pump at stock fuel pressures...what motor is this on, and is it stock

Re:How much boost...
 

Well,
i'm not asking how much boost my particular engine can HANDLE, i'm just trying to get a feel on whether or not i'll ever need to purchase injectors again after this. I'm shopping for 450s now (they seem to be the most popular choice here) and I have an SAFC installed already. I have a 93 civic dx with a D15 of course and the only changes i'll be making to the engine are an upgraded headgasket (no thicker, just tougher). I'll be using an rbh5 turbo with hf manifold.

I don't think i'll ever be getting into T3/T4 territory, but I may get a better flowing (newer) turbo in the future. I just don't like pissing money away by buying parts I know i'll be upgrading later.

Okay i'm done, sorry for the long post.

Re:How much boost...
 

450s can put out fuel for more boost than that motor can handle stock, thats why i asked. but the afc will be your limiting factor really, not the injectors/motor. also, you dont need a stronger headgasket really.

Re:How much boost...
 

with the afc hack I'd say 11psi at the most

Re:How much boost...
 

I seriously doubt I'll need more than that. Unless of course I get additcted to boost.

Re:How much boost...
 

The headgasket is not necessary. The headgasket will probably be the only part of that motor that will survive boost. :-\

Re:How much boost...
 

Those injectors will flow a certain cc at a certain pressure. How much power they will make, depends on the efficiency of your motor, RPM, boost pressure, FPR..

It's not just an amount of boost they will handle, it's much more than that.

Re:How much boost...
 

everyone is ADDICTED to boost once they boost

Re:How much boost...
 

Amen. ;D ;D ;D