fuel injector upgrades for blacktop20v?

choi0706
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fuel injector upgrades for blacktop20v?

Postby choi0706 » Sun Feb 03, 2013 9:31 pm

I know the 1jz are direct fit.. but what else is direct fit, thats more available to find here in USA?

2jzgte injectors? looking to run E85 on a blacktop 20v

ga_goosh
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Re: fuel injector upgrades for blacktop20v?

Postby ga_goosh » Mon Feb 04, 2013 6:43 am

im not sure but the sr20ve and the sr20vet injectors might fit. they are 350cc for the non turbo and 440cc for the turbo model. they are bottom feed instead of side feed tho.
Nissan SR20ve & SR20vet injector.
Image

yes the 2jgzte injectors will fit they are rated at 550cc i think the 2jzge uses different type of injectors.

the nissan sr20det injectors (370cc) will fit too but are a little shorter then the 2jzgte injectors.
nissan sr20det injector
Image
Last edited by ga_goosh on Mon Feb 04, 2013 6:55 am, edited 1 time in total.
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drift warrior fab
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Re: fuel injector upgrades for blacktop20v?

Postby drift warrior fab » Mon Feb 04, 2013 6:53 am

I've got a set of 1j injectors I was going to use on my sc setup, but decided to go another route. hit me up. 9094358206

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Re: fuel injector upgrades for blacktop20v?

Postby yoshimitsuspeed » Mon Feb 04, 2013 10:33 am

http://www.clublexus.com/forums/perform ... ams-3.html

3SGTE
1JZ
2JZ

You can also click through the pics at witchhunter and when you find one that looks compatible search the part no and see what it comes out of and get more info on it.
http://witchhunter.com/injectordata1.php

There is also this which can be helpful.
http://users.erols.com/srweiss/tableifc.htm

choi0706
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Re: fuel injector upgrades for blacktop20v?

Postby choi0706 » Mon Feb 04, 2013 5:45 pm

so 2jz stock 550cc will fit? directly..

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Re: fuel injector upgrades for blacktop20v?

Postby gaijin_rokurunner » Mon Feb 04, 2013 7:04 pm

2tz-fze.....previa s/c van injectors are a direct swap into 20 valves and are available here in the states i believe they are 425-450cc...sr20 are side feed but they dont fit properly.
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Re: fuel injector upgrades for blacktop20v?

Postby yoshimitsuspeed » Tue Feb 05, 2013 9:11 am

choi0706 wrote:so 2jz stock 550cc will fit? directly..

Why are you looking at such big injectors?
E85 shouldn't need more than 30% more fueling. I would expect a good bit less.
Stockers are 310cc right? 310*1.3 = 403
440s would give you plenty of margin. And are available in a number of cars.
23250-46040 23250-46100 23250-76020 Those are all high impedance as I believe the BT is stock. Looks like the 3S 440s along with the 2JZ 550s look like they are low impedance. 23250-74090 23250-46060
Impedance shouldn't stop you if you are controling them with aftermarket engine management but it will be something you will need to be aware of when setting them up.
Bigger injectors will just make it harder to control fuel down low and will give you no benefit.

choi0706
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Re: fuel injector upgrades for blacktop20v?

Postby choi0706 » Tue Feb 05, 2013 10:43 am

my tuner suggested 500min.. and some have suggested doubling the the factory flow to run e85..

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Re: fuel injector upgrades for blacktop20v?

Postby yoshimitsuspeed » Tue Feb 05, 2013 5:44 pm

I guess you are kind of right on the cusp.
I bet the 440s would be enough but probably on the low side.

http://www.dsmtuners.com/sub.php?page=e85calculator

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Re: fuel injector upgrades for blacktop20v?

Postby yoshimitsuspeed » Tue Feb 05, 2013 5:47 pm

I'm curious what your build is. You running super high compression?

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Re: fuel injector upgrades for blacktop20v?

Postby death_blossom » Tue Feb 05, 2013 11:42 pm

yoshimitsuspeed wrote:I'm curious what your build is. You running super high compression?

at 500cc, it sounds like he might be running a turbo. otherwise, 500cc is way too much for any n/a built engine
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Re: fuel injector upgrades for blacktop20v?

Postby yoshimitsuspeed » Wed Feb 06, 2013 8:04 am

death_blossom wrote:
yoshimitsuspeed wrote:I'm curious what your build is. You running super high compression?

at 500cc, it sounds like he might be running a turbo. otherwise, 500cc is way too much for any n/a built engine

Before yesterday I would have agreed with you but if you use either of the calculators on the page I linked to they suggest at least a 460 or more. Since the injectors I know of jump from 440 to 550 then the 550s might be the best choice.
That is based off one of the calculators just entering the stock injector size and the other calculator entering the HP. I entered 180 HP then used a very good BSFC which the BT has. Whatever the case both calculations were for 100% E85 at very near stock power levels. Like I said in my earlier post I'm pretty confidant the 440s would be enough but if you could find 550s then why not be on the safe side with some room to grow if you ever needed it.

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Re: fuel injector upgrades for blacktop20v?

Postby choi0706 » Wed Feb 06, 2013 8:55 am

na fully built bottom/top.. I have orionengineered works' custom pistons 83mm