fuel system dilema
 

Ok i'm really not sure what i should do..

i have a turbo system similar to the bnr stage 3(i have the knightsports), so i'm wondering what fuel setup i should do..

I want to run stock 550cc primaries and upgrade the secondaries to 1300cc but in my current location they only have 1000cc and then they jump to 1600cc

The reason why i don't want to upgrade to 1600cc requires a new fuel rail, a fpr, and new lines.

QUESTION:
I'm wondering if
2 x 720cc for primaries and
2 x 1000cc for secondaries will be fine
for 11psi on the knightsport turbos ???

since people use 4 x 850cc (flow rate is 3400) and 2x720 + 2x1000 also = 3400 would this setup be ok?
feel free to pm me or reply to this tread, thanks in advance.

I have a complete secondary rail for sale with 1200cc injectors.

https://www.rx7club.com/showthread.php?t=449194

For more fuel flow, you have 3 choices: (1) rewire the stock FP wiring to get about 2 more volts to the pump, upgrade the pump, or both.

cewrx7r1
thanks for the info
and thanks for the offer on the fuel rail, i'll keep it in mind once i make up my mind

I am totally confused by that statement....what do you mean at your current location they only have 1000cc? Yank your injectors, send them off to RC Eng and they'll bore them out to 1300cc.

I sincerely doubt you'll need any kind of fuel upgrade to run those Knightsports at 11 psi.

If you do get larger injectors, you must have a standalone ecu to set them up properly. You will also need an upgraded fuel pump.

sorry for the confusion, what i mean is that i'm in thailand looking for parts, and all i find is 1000cc injectors

thanks for your opinion on ks turbos, i just wanna make sure the fuel system can support them .. oh, i'm also running a pfc.