740cc injectors with Stock ECU + SAFC (possible?) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mastaflash05 · 12-04-2004, 10:06 AM

im in need of an injector upgrade and im looking at the nismo 740cc. currently i have stock ecu, safc, and z32 maf. would i be able to tune this large of an injector with the SAFC? anyone on here done it before?

AutoRnD · 12-04-2004, 12:24 PM

HELLL NO!!!!
i've tried safc w/ 550s on stock ecu and it couldnt even handle that

mastaflash05 · 12-04-2004, 03:10 PM

did you get it dyno tuned? i thought you could at least run 550s. i guess im going to be stuck in stock fuel world for a while then.

wootwoot · 12-04-2004, 03:49 PM

i think with a safc you can run 50% larger injectors

Toahk · 12-04-2004, 07:43 PM

well 50% larger than 270 is only 405. Lot of people running 550's and 460's no prob, So I dont know how correct that statement is.

timmybgood · 12-05-2004, 12:03 AM

Quote:

Originally Posted by Toahk

well 50% larger than 270 is only 405. Lot of people running 550's and 460's no prob, So I dont know how correct that statement is.

well he has an SR, so assuming its not S15 the injectors are 370's. and 50% over 370 is 555

240silvia · 12-05-2004, 12:55 AM

good lord!!!!!! 740 injectors!?!?!? Are you running 30psi or something? Damn, get something smaller!

RiversideS13 · 12-05-2004, 01:14 AM

Greddy e-manage can support up to 150% greater injectors with optional injector harness.

only1.3 · 12-05-2004, 02:42 AM

Quote:

Originally Posted by RiversideS13

Greddy e-manage can support up to 150% greater injectors with optional injector harness.

no it can handle 150% with out optional injector harness.

i have 555cc's on my SR20 and i could run bigger right now its all at about -18 and you still have till -50 to lean it out. at idle its -33

mastaflash05 · 12-05-2004, 09:08 AM

Quote:

Originally Posted by 240silvia

good lord!!!!!! 740 injectors!?!?!? Are you running 30psi or something? Damn, get something smaller!

why go smaller? i dont want to get to the point where i max out 555s THEN have to go bigger. id rather get the bigger ones from the start. ill probobly run 20psi or so.

oh, and if i get a tuned ecu for my setup could i run the injectors without anythign else? im thinking about an enthalpy(sp?) tuned ECU.

Toahk · 12-05-2004, 04:41 PM

Quote:

Originally Posted by timmybgood

well he has an SR, so assuming its not S15 the injectors are 370's. and 50% over 370 is 555

good point. 740's still too big though

mastaflash05 · 12-05-2004, 06:43 PM

alright, now i know i need tuned ecu or emanage or something else to control these injectors. im prety sure ill go with a tuned ecu.

im going with this big of an injector because i need something to keep up with these hondas in my area.

NZO · 12-05-2004, 08:07 PM

How are 7xx injectors too big? Too big for what? Maybe too big for stock turbo but anything beyond 350 wheel you want larger than 5xx injectors.

mastaflash05 · 12-05-2004, 08:26 PM

my thoughts exactly. i see people wanting to get rid of their 550s for 7xx's in the classified sections all the time. i would rather just get the larger injectors, be able to at least hang with some of the crazy hp hondas around my area, and be done with it.

12-04-2004, 10:06 AM	#1
mastaflash05 Zilvia Addict Join Date: Dec 2002 Location: Cincinnati OHIO Age: 38 Posts: 769 Trader Rating: (7) Feedback Score: 7 reviews	740cc injectors with Stock ECU + SAFC (possible?) im in need of an injector upgrade and im looking at the nismo 740cc. currently i have stock ecu, safc, and z32 maf. would i be able to tune this large of an injector with the SAFC? anyone on here done it before? __________________ GT3582R SR20 Powered S13

12-04-2004, 12:24 PM	#2
AutoRnD Post Whore! Join Date: Nov 2003 Location: SF BAY AREA, CA Posts: 2,601 Trader Rating: (1) Rides Gallery: AutoRnD Feedback Score: 1 reviews	HELLL NO!!!! i've tried safc w/ 550s on stock ecu and it couldnt even handle that __________________ www.AutoRnD.com Nardi, Enkei, Stance, AME Master Distributors for USA Check Out Our Facebook!

12-04-2004, 03:10 PM	#3
mastaflash05 Zilvia Addict Join Date: Dec 2002 Location: Cincinnati OHIO Age: 38 Posts: 769 Trader Rating: (7) Feedback Score: 7 reviews	did you get it dyno tuned? i thought you could at least run 550s. i guess im going to be stuck in stock fuel world for a while then. __________________ GT3582R SR20 Powered S13

12-04-2004, 07:43 PM	#5
Toahk Zilvia Junkie Join Date: Jun 2003 Location: N. Cali Age: 39 Posts: 434 Trader Rating: (0) Feedback Score: 0 reviews	well 50% larger than 270 is only 405. Lot of people running 550's and 460's no prob, So I dont know how correct that statement is. __________________ formerly Norcal_Drifter http://www.cardomain.com/id/toahk

12-05-2004, 06:43 PM	#12
mastaflash05 Zilvia Addict Join Date: Dec 2002 Location: Cincinnati OHIO Age: 38 Posts: 769 Trader Rating: (7) Feedback Score: 7 reviews	alright, now i know i need tuned ecu or emanage or something else to control these injectors. im prety sure ill go with a tuned ecu. im going with this big of an injector because i need something to keep up with these hondas in my area. __________________ GT3582R SR20 Powered S13

12-04-2004, 03:49 PM	#4
wootwoot Post Whore! Join Date: Jan 2004 Location: sarasota florida biatch Age: 39 Posts: 3,850 Trader Rating: (0) Feedback Score: 0 reviews	i think with a safc you can run 50% larger injectors

12-05-2004, 12:55 AM	#7
240silvia Nissanaholic! Join Date: Jul 2002 Location: Wilmington NC Age: 40 Posts: 2,060 Trader Rating: (3) Feedback Score: 3 reviews	good lord!!!!!! 740 injectors!?!?!? Are you running 30psi or something? Damn, get something smaller!

12-05-2004, 01:14 AM	#8
RiversideS13 Zilvia FREAK! Join Date: Sep 2004 Location: Diamond Bar, CA Age: 43 Posts: 1,545 Trader Rating: (0) Feedback Score: 0 reviews	Greddy e-manage can support up to 150% greater injectors with optional injector harness.

12-05-2004, 08:07 PM	#13
NZO Zilvia FREAK! Join Date: Mar 2002 Location: Reno, NV Age: 42 Posts: 1,424 Trader Rating: (0) Rides Gallery: NZO Feedback Score: 0 reviews	How are 7xx injectors too big? Too big for what? Maybe too big for stock turbo but anything beyond 350 wheel you want larger than 5xx injectors. __________________ sentinelguild.com/nzo/PFCDB/

12-05-2004, 08:26 PM	#14
mastaflash05 Zilvia Addict Join Date: Dec 2002 Location: Cincinnati OHIO Age: 38 Posts: 769 Trader Rating: (7) Feedback Score: 7 reviews	my thoughts exactly. i see people wanting to get rid of their 550s for 7xx's in the classified sections all the time. i would rather just get the larger injectors, be able to at least hang with some of the crazy hp hondas around my area, and be done with it. __________________ GT3582R SR20 Powered S13