240sx preprogrammed for larger injectors; true? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

shinrekka · 04-20-2005, 08:12 PM

I read, I believe on this forum, that the 240sx ECU is preprogrammed for larger CC injectors then it comes with stock. Now i cant find the post nor am i positive it was true. But if thats true, on a low boost application like my SOHC KA, maybe i can get a little more out of it then i thought with out spending alot of money. I work in an Autoparts store so i get the 5-finger discount on pretty much everything in stock. I have a 300ZX twin turbo feul pump and feul filter, now the twin turbo Z runs 370CC injectors and the post i read, said the 240 is programmed for 330CC injectors or something, so if it is, can i use 300ZX injectors and they will pump out 330CC's of feul with out straining? And am i right about 300ZX injectors bolting in?

SR240DET · 04-20-2005, 08:26 PM

hahahhaha you made me laugh...... no but seriously... the ecu is programed for the 270cc or what ever the stock is.... for low boost you can run a FMU and upgrade your fuel pump with stock injectors.... i forgot what disk... i think its like 8:1 runs a 14.0 - 12.0 A/f on about 230hp ish... good luck.. and do a lil more research... there is alot of good info here... ka-t.org and freshalloy.com

edit: 12.0-12.4:1 via Vortech 8:1 FMU and upgrade fuel pump... then you should be set... thats the fuel setup on for 6psi on a T3/T4 .48 ar stage 3 wheel turbine .50 ar compressor

skatanic28 · 04-20-2005, 08:42 PM

the 95/96 370's should drop right in, but you would be running pretty damn rich without any sort of fuel adjustments (safc, retune, etc).

v8blakdak · 04-20-2005, 08:45 PM

im a leaky injector

SR240DET · 04-20-2005, 09:00 PM

Quote:

Originally Posted by v8blakdak

im a leaky injector

and a troll

nlzmo400r · 04-20-2005, 09:21 PM

the vg30dett injectors from the 300zx tt are the same as sr20 injectors (not including s15s, which are 444cc). These are side feed and bolt right in to the existing rail. The stock 240sx injectors are only 270cc,dont even waste your time with them and chance blowin shit up,just upgrade to the 370cc (vg or SR injectors) and get an safc ($200 or so) and you'll be fine. The 240 was never 'programmed' to run any bigger injectors, so whoever told you that is either stupid, lying or both.

projectRDM · 04-20-2005, 09:47 PM

Quote:

Originally Posted by skatanic28

the 95/96 370's should drop right in, but you would be running pretty damn rich without any sort of fuel adjustments (safc, retune, etc).

SRs maybe. Not KA. Verify your post before you confuse these kids.

skatanic28 · 04-20-2005, 10:18 PM

misread your post, i was talking about dohc ka rails, into which only the 95/96 z32tt injectors drop in. no clue about the sohc setup though.

Andrew Bohan · 04-21-2005, 02:45 AM

i had also heard the KA ecu was programmed for bigger injectors. weird.

SR240DET · 04-21-2005, 07:17 AM

Quote:

Originally Posted by i'm driftaholic

i had also heard the KA ecu was programmed for bigger injectors. weird.

there was a story out there that some dude from canada droped some 370cc injectors in.... but idle was really rich and later on when he blew his engine he found out that it ran really lean at WOT but he never really told anybody it ran lean... so people from that part of canada told everybody you can run 370cc injectors with no tuning.....

nissantuner22 · 04-21-2005, 09:12 AM

That does sound familiar.

*fliprayzin240sx* · 04-23-2005, 03:54 PM

im hearing from a KA-T guy that dohc ka ECUs will push SR 370s.

skatanic28 · 04-23-2005, 03:59 PM

Quote:

Originally Posted by fliprayzin240sx

im hearing from a KA-T guy that dohc ka ECUs will push SR 370s.

with an safc/emanage/etc itll do just fine. with no correction.....rich as hell.

04-20-2005, 08:12 PM	#1
shinrekka Zilvia Member Join Date: Oct 2004 Location: Long Island Posts: 251 Trader Rating: (0) Feedback Score: 0 reviews	240sx preprogrammed for larger injectors; true? I read, I believe on this forum, that the 240sx ECU is preprogrammed for larger CC injectors then it comes with stock. Now i cant find the post nor am i positive it was true. But if thats true, on a low boost application like my SOHC KA, maybe i can get a little more out of it then i thought with out spending alot of money. I work in an Autoparts store so i get the 5-finger discount on pretty much everything in stock. I have a 300ZX twin turbo feul pump and feul filter, now the twin turbo Z runs 370CC injectors and the post i read, said the 240 is programmed for 330CC injectors or something, so if it is, can i use 300ZX injectors and they will pump out 330CC's of feul with out straining? And am i right about 300ZX injectors bolting in?

04-20-2005, 08:26 PM	#2
SR240DET Zilvia FREAK! Join Date: Mar 2002 Location: orida Posts: 1,488 Trader Rating: (0) Feedback Score: 0 reviews	hahahhaha you made me laugh...... no but seriously... the ecu is programed for the 270cc or what ever the stock is.... for low boost you can run a FMU and upgrade your fuel pump with stock injectors.... i forgot what disk... i think its like 8:1 runs a 14.0 - 12.0 A/f on about 230hp ish... good luck.. and do a lil more research... there is alot of good info here... ka-t.org and freshalloy.com edit: 12.0-12.4:1 via Vortech 8:1 FMU and upgrade fuel pump... then you should be set... thats the fuel setup on for 6psi on a T3/T4 .48 ar stage 3 wheel turbine .50 ar compressor Last edited by SR240DET; 04-20-2005 at 09:00 PM..

04-20-2005, 08:45 PM	#4
v8blakdak Leaky Injector Join Date: Feb 2004 Location: michigan Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	im a leaky injector __________________ -"HELL...LUMBERG FUVKED HER"

04-20-2005, 09:21 PM	#6
nlzmo400r Zilvia FREAK! Join Date: Oct 2003 Location: louisiana Posts: 1,248 Trader Rating: (0) Feedback Score: 0 reviews	the vg30dett injectors from the 300zx tt are the same as sr20 injectors (not including s15s, which are 444cc). These are side feed and bolt right in to the existing rail. The stock 240sx injectors are only 270cc,dont even waste your time with them and chance blowin shit up,just upgrade to the 370cc (vg or SR injectors) and get an safc ($200 or so) and you'll be fine. The 240 was never 'programmed' to run any bigger injectors, so whoever told you that is either stupid, lying or both. __________________ 'my drinking team has a racing problem' [email protected] - gt32 .6bar

04-21-2005, 09:12 AM	#11
nissantuner22 Zilvia FREAK! Join Date: Mar 2004 Location: Gainesville, Fl Age: 36 Posts: 1,056 Trader Rating: (-1) Feedback Score: -1 reviews	That does sound familiar. __________________ Current Project: Operation: N/A SR: 93 Silvia Q SR20DE Engine with go fast goodies. , "Common problems 240sx's suffer from are curbs, trees, ditches, and other immovable objects."thx247 "on the tounge... there is no guardrails."- citizen

04-20-2005, 08:42 PM	#3
skatanic28 Zilvia Junkie Join Date: Oct 2002 Location: ny Age: 37 Posts: 443 Trader Rating: (0) Feedback Score: 0 reviews	the 95/96 370's should drop right in, but you would be running pretty damn rich without any sort of fuel adjustments (safc, retune, etc).

04-20-2005, 10:18 PM	#8
skatanic28 Zilvia Junkie Join Date: Oct 2002 Location: ny Age: 37 Posts: 443 Trader Rating: (0) Feedback Score: 0 reviews	misread your post, i was talking about dohc ka rails, into which only the 95/96 z32tt injectors drop in. no clue about the sohc setup though.

04-21-2005, 02:45 AM	#9
Andrew Bohan Post Whore! Join Date: Apr 2003 Location: Location: Location Posts: 8,330 Trader Rating: (2) Feedback Score: 2 reviews	i had also heard the KA ecu was programmed for bigger injectors. weird.

04-23-2005, 03:54 PM	#12
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	im hearing from a KA-T guy that dohc ka ECUs will push SR 370s. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

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