Injectors

Discuss the RB20, RB25 and RB26 series engines.
LeD ippen
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I wanted to know if i could run 750cc injectors for around 300 whp and be okay or is that to big of injectors? this is on a rb20

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Yellow4g63
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Joined: Mon Jan 20, 2003 6:07 pm
Car: 95 Nissan RB20 240SX RB20
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Yes u can what kind of injectors? you need to get the lag time info for the injectors when ur adjusting the K in nistune.

LeD ippen
Posts: 127
Joined: Mon Feb 25, 2008 3:25 pm
Car: 1993 Nissan 240sx SE

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I am going to buy some deastchwerks but just wanted to know if i can go that big. just like to buy once and not have to upgrade later

Yellow4g63
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Search around I'm not sure if there 750 is a quality injector. I'm running 800cc on mine. Just stay away from blow through with the lightning maf and you will be good lol.

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StricNyne
Posts: 3725
Joined: Thu Oct 30, 2003 1:11 pm

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i ran 1000cc for like 200hp (long story). but basically a bad timing map) a lot of people were telling me it would get s*** gas or not idle but with my haltech it idles at 900rpm and kicks a**, and thats with a super rich cold start fueling map

Cjmartz2k
Posts: 1845
Joined: Sat May 19, 2007 1:39 pm
Car: Hunting for a '89 GTR now
Location: Okinawa, Japan

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StricNyne wrote:i ran 1000cc for like 200hp (long story). but basically a bad timing map) a lot of people were telling me it would get s*** gas or not idle but with my haltech it idles at 900rpm and kicks a**, and thats with a super rich cold start fueling map
Agreed. I heard that all the time over on skylinesaustralia and it made me want to punch babies in the face every time I heard it. Does a 900hp vehicle use any more gas at idle than a 200hp car? No. Then why would they be any different. If you have good quality injectors that idle good in a 900hp car, they will do the same in a 200hp car. End of story. If anybody wants to argue otherwise, send them this way and I'll inform them of what kind of internet only knowledge retard they really are. ;)

LeD ippen
Posts: 127
Joined: Mon Feb 25, 2008 3:25 pm
Car: 1993 Nissan 240sx SE

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Yellow4g63 wrote:Search around I'm not sure if there 750 is a quality injector. I'm running 800cc on mine. Just stay away from blow through with the lightning maf and you will be good lol.
What injectors do you suggest? I trying to get something around 750cc. I'm shooting for 450whp later on with around 75-80% duty cycle. I want to run blow through with n62 maf but i dont know if it gonna last like that and i can't go map setup with nistune. well not yet

Yellow4g63
Posts: 3718
Joined: Mon Jan 20, 2003 6:07 pm
Car: 95 Nissan RB20 240SX RB20
91 Nissan NX2000 VE power
95 Nissan 240SX Stock
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Try RC injectors, SARDS, only 2 that come to my mind. Anyone else care to chime in on injector experiences?

Cjmartz2k
Posts: 1845
Joined: Sat May 19, 2007 1:39 pm
Car: Hunting for a '89 GTR now
Location: Okinawa, Japan

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+1 for RC injectors.

Also Nismo/Tomei (same same) makes good injectors but they ain't cheap.

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StricNyne
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i run precision, no beef with them at all !!

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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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hate precisions...they are a pain to tune for, especially the 880's; non linear spray pattern.
I've run rc 550cc injectors in my 20, worked great...super idle and part throttle driving characteristics.
I currently run greddy/denso 720cc injectors in my 30, and they were also on my 20.

All running on a tuned stock ecu...blowthru z32 et al.


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