sr20 fuel injector capability

[Options13]

i recently bought an sr for $2500, it got 155-160 comp through all 4 cylindersso its a health running motor, and i wanna keep it that way. SOO
its on a stock ECU, stock 370cc injectors, is this ok when i have
Toda Racing Cams 264's
Toda Adjustable Cam Gears
Toda Valve Springs
Tomei Rocker Arm Stoppers
s14 T28 Turbo
its an s13 head on an s14 block
any advice would be great, i just need to know if i should buy an SAFC and upgrade to 550cc injectors before i think about putting this sr in

[jspaeth]

i recently bought an sr for $2500, it got 155-160 comp through all 4 cylindersso its a health running motor, and i wanna keep it that way. SOO
its on a stock ECU, stock 370cc injectors, is this ok when i have
Toda Racing Cams 264's
Toda Adjustable Cam Gears
Toda Valve Springs
Tomei Rocker Arm Stoppers
s14 T28 Turbo
its an s13 head on an s14 block
any advice would be great, i just need to know if i should buy an SAFC and upgrade to 550cc injectors before i think about putting this sr in

SAFC no. Injector upgrade yes.

You will probably max out the stock MAF and injectors.

Cheaper route, go Z32 MAF (used), 550s or 740s, ROM tune.

Or, get a standalone like PowerFC (you can get DJetro and eliminate the MAF sensor) and get it tuned

[Options13]

damn! shitty! i may have to just convert back to stock cams, do you know cams in an s14 sr20det will fit on an s13 sr?

[lazysk8er2]

yea u def need to tune for the cams...not sure but i dont think they are interchangable

[Options13]

yeah the dude who sold me the motor was telling me i'de be fine on 370cc injectors and stock ecu.. oh well i'll just sell all that shit and convert back to stock, i don't have 1 grand to spend on an ecu.. i wish i did

can anyone tell me if the sr20 s13 and s14 stock cams are interchangeable?

[jspaeth]

S14 SR has variable valve timing.

[lazysk8er2]

yeah the dude who sold me the motor was telling me i'de be fine on 370cc injectors and stock ecu.. oh well i'll just sell all that shit and convert back to stock, i don't have 1 grand to spend on an ecu.. i wish i did

can anyone tell me if the sr20 s13 and s14 stock cams are interchangeable?

im a little confused is the stuff installed? cuz if your gonna build the head do it right the first time with springs, retainers, new valves and all the works not just random things. also send it out to the machine shop too if you can.

i doubt you need an adjustable cam gear unless you know how to use it.

370cc injectors are stock. and you can get an enthalpy rom tune for less than 400 bucks now which is ok for you since your not doing an all out build.

motor is good for 400 hp with stock internals just put an hks head gasket and arp studs and your good buddy.

[Options13]

OK so, if i send my ECU out to enthalpy, and get it tuned i'll prolly get get it tuned for 550cc i'll be good?

and it already has an apex head gasket

[lazysk8er2]

like jspeath said if you really want get the 550cc injector and a z32 maf and you can turn the boost up to about 15 lbs for a safe running car. make sure you include all the upgrades on your motor.

it all depends on what your goals are.

[Options13]

for now i'de be happy with 300whp, but i may just sell this head and go back to stock, i personally don't think im ready for it

[lazysk8er2]

u can make 300 hp with what you have now just get the ecu tune and just use what you got....obviously get a boost controller and youll be fine for now.

[Options13]

hmm, im thinking of just getting a ROM tune on my ecu for z32 maf and 550cc injectors, would i need a boost controller even if i just wanted to run stock boost? isn't that already programed into the ecu?

[lazysk8er2]

no the ecu doesnt control boost...if you have no boost controller it will run off the wastegate which is roughly 7lbs.

i suggest look around the forum for similar setups theres ample info on here and in the stickys. gl with your build