Sr20 build question. need help with injector size!!

For discussion of front-drive SR20DE, SR20VE and SR20DET engines!
White-s13
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Joined: Sun Feb 26, 2012 8:06 pm
Car: 92 240sx, sr20

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Ok so im building my sr and im almost done but i am stuck on injectors... im going to be running the ISIS RS3871r turbo but i have no idea what injectors to run. i was going to use the DW 550cc's but iv been reading they top out at like 350hp.. and i have no idea what my setup will make.. I seen that five-0 haS SOME 750cc;s for like $340.. Does anyone use these? I talked to RS-enthulpy and they said that they run rich in boost and lean out of boost. If someone runs these or knows about them and has some advise for me that would be great.


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tEknoS13
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Joined: Wed Jan 17, 2007 4:54 pm
Car: 93' Type X

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Lol, I know I seen a vendor that claims Enthalphy supportss Five-o injectors. Deachwerks 810s.

White-s13
Posts: 11
Joined: Sun Feb 26, 2012 8:06 pm
Car: 92 240sx, sr20

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They do support five-0 and DW but im wondering how good the five-0's are. like has anyone had any problems with them?
Last edited by White-s13 on Mon Feb 27, 2012 3:53 pm, edited 1 time in total.

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tEknoS13
Posts: 1665
Joined: Wed Jan 17, 2007 4:54 pm
Car: 93' Type X

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Theres a few threads that mention them, but haven't heard any inputs from the 240 guys. Just buy DW, they go for like 375 here at Touge Factory. I got my 810s for 390

White-s13
Posts: 11
Joined: Sun Feb 26, 2012 8:06 pm
Car: 92 240sx, sr20

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top feed or side? im stayin side feed

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tEknoS13
Posts: 1665
Joined: Wed Jan 17, 2007 4:54 pm
Car: 93' Type X

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Plug and play. Side feed, no need for tacky fuel rails.

White-s13
Posts: 11
Joined: Sun Feb 26, 2012 8:06 pm
Car: 92 240sx, sr20

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The 810's from touge factory are like $440. and are 810's too big for a 2871r?

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tEknoS13
Posts: 1665
Joined: Wed Jan 17, 2007 4:54 pm
Car: 93' Type X

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I KNOW they aren't that much. Or maybe I got a good deal because I shop there like no other lol. 810s are not too big for a 2871. I have the same setup... Gt2871 .64ar, z32 MAF, DW 810cc injectors, 256/256 cams, and Enthalphy tune. 550s are too small for that setup, maxing out duty cycle. The tune will accommodate for the injectors.

White-s13
Posts: 11
Joined: Sun Feb 26, 2012 8:06 pm
Car: 92 240sx, sr20

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ok. thanks for the info. now i gotta go find a deal.


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