Sr injector impedance? high or low? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

philbro · 01-29-2004, 02:35 PM

i am thinking of go for a top mount set up on my sr is the injector impedance for an sr? are they high or low. please let me know
thanks
phil

TheTicTac · 01-29-2004, 02:43 PM

Why top mount? Sr's are side mount, and they are high imp.

philbro · 01-29-2004, 02:53 PM

in all truthfullness top mount is a bit cheaper and injectors are more readily available. I will be looking at like 330 for the rail and the injectors..opposed to upwards of 500.

TheTicTac · 01-29-2004, 03:20 PM

So your looking for supra or FC injectors or something? Imo I think it's more of a hassle, but I'm always down for DIY so good luck!

Redtop_240 · 01-29-2004, 10:45 PM

Quote:

Originally Posted by TheTicTac

So your looking for supra or FC injectors or something? Imo I think it's more of a hassle, but I'm always down for DIY so good luck!

Are you serious? You dont know this is more efficient than any sidefeed injector available other than the Nismo injectors that cost more for a set of injectors than to buy 50lb. MSD's a fuel rail (top feed) and the clips.....and a walbro 255 HPFP.......LMAO............

Anyonew who looks for perfomance beyond stock I would suggest topfeed fuel rail too..........

-Jeff

TheTicTac · 01-30-2004, 12:14 AM

Quote:

Originally Posted by Redtop_240

Are you serious? You dont know this is more efficient than any sidefeed injector available other than the Nismo injectors that cost more for a set of injectors than to buy 50lb. MSD's a fuel rail (top feed) and the clips.....and a walbro 255 HPFP.......LMAO............

Anyonew who looks for perfomance beyond stock I would suggest topfeed fuel rail too..........

-Jeff

So why are Nismo injectors the most efficient sidefeed?

andrave · 01-30-2004, 12:53 AM

blah blah, merits to both, stock SR are high impedance but if you get low impedance you can just wire up resistors. RX-7 injectors fit the sr fuel rail more or less (550's or 850's) but they need collars, well the 550's do anyway, and 850's are just massive and you need standalone to control. Topfeeds are cheap and reliable and easy to find, easy to replace. Plus you can use a "free" mustang 4.6 fuel rail. they are pretty cheap used.
But then sidefeeds fit the stock rail, and you can keep your stock fuel hoses, and the fuel cools the injector.
I'm going topfeeds, I just sold my sidefeeds, but thats just because my ECU couldn't control the sidefeeds I had...

turboex · 01-31-2004, 08:28 PM

Quote:

Originally Posted by andrave

blah blah, merits to both, stock SR are high impedance but if you get low impedance you can just wire up resistors. RX-7 injectors fit the sr fuel rail more or less (550's or 850's) but they need collars, well the 550's do anyway, and 850's are just massive and you need standalone to control. Topfeeds are cheap and reliable and easy to find, easy to replace. Plus you can use a "free" mustang 4.6 fuel rail. they are pretty cheap used.
But then sidefeeds fit the stock rail, and you can keep your stock fuel hoses, and the fuel cools the injector.
I'm going topfeeds, I just sold my sidefeeds, but thats just because my ECU couldn't control the sidefeeds I had...

Sorry to bring up old post, but is the mustang fuel rail a bolt on deal for an sr20det? thanks

01-29-2004, 02:35 PM	#1
philbro Leaky Injector Join Date: Dec 2003 Location: nj Posts: 91 Trader Rating: (1) Feedback Score: 1 reviews	Sr injector impedance? high or low? i am thinking of go for a top mount set up on my sr is the injector impedance for an sr? are they high or low. please let me know thanks phil

01-29-2004, 02:43 PM	#2
TheTicTac Zilvia Junkie Join Date: May 2002 Location: CA Posts: 449 Trader Rating: (0) Feedback Score: 0 reviews	Why top mount? Sr's are side mount, and they are high imp. __________________ GorgeousGarage L.oose S.ocks D.aisuke !

01-29-2004, 03:20 PM	#4
TheTicTac Zilvia Junkie Join Date: May 2002 Location: CA Posts: 449 Trader Rating: (0) Feedback Score: 0 reviews	So your looking for supra or FC injectors or something? Imo I think it's more of a hassle, but I'm always down for DIY so good luck! __________________ GorgeousGarage L.oose S.ocks D.aisuke !

01-29-2004, 02:53 PM	#3
philbro Leaky Injector Join Date: Dec 2003 Location: nj Posts: 91 Trader Rating: (1) Feedback Score: 1 reviews	in all truthfullness top mount is a bit cheaper and injectors are more readily available. I will be looking at like 330 for the rail and the injectors..opposed to upwards of 500.

01-30-2004, 12:53 AM	#7
andrave BANNED Join Date: Apr 2002 Location: Burton WV Posts: 2,350 Trader Rating: (0) Feedback Score: 0 reviews	blah blah, merits to both, stock SR are high impedance but if you get low impedance you can just wire up resistors. RX-7 injectors fit the sr fuel rail more or less (550's or 850's) but they need collars, well the 550's do anyway, and 850's are just massive and you need standalone to control. Topfeeds are cheap and reliable and easy to find, easy to replace. Plus you can use a "free" mustang 4.6 fuel rail. they are pretty cheap used. But then sidefeeds fit the stock rail, and you can keep your stock fuel hoses, and the fuel cools the injector. I'm going topfeeds, I just sold my sidefeeds, but thats just because my ECU couldn't control the sidefeeds I had...