View Full Version : 500awhp injector upgrade

07-01-2012, 07:51 AM
hey guys! so my build is ALMOST done. all i need is injectors and an ems. so, right now i have a brand new denso TT supra fuel pump in my 185 build. my goal is 500awhp and i have the supporting mods. a strong built engine with parts such as forged pistons, acl bearings, metal head gasket etc. the ems im getting is going to be flex fuel, so i need SIDEFEED injectors than can handle full e85 when i need them on a STOCK 205 rail at a goal of 500awhp. im looking for something affordable...not an arm and a leg. any input would help :)

07-01-2012, 01:51 PM
ditch the sidefeed injectors. use a st165 fuel rail with ID2000 injectors. BTW the single supra pump will not be enough.
i've never seen large sidefeed injectors. that and all sidefeed injectors cost way more than top feed. just my thoughts on this.

07-01-2012, 04:13 PM
500awhp on 4x injectors? Minimum on time will be a problem. Research carefully

07-01-2012, 04:23 PM
Especially on E85. Sorry to say I don't think you can hit 500awhp on side feeds, and is an especially dangerous thought with the stock rail.

Take your time, do it right. :)

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07-21-2012, 06:05 PM
checkout Wolfkatz everything you'll need

07-27-2012, 02:59 PM
Not to mention the 205 fuel rail won't work with the 185 head.

07-27-2012, 10:14 PM
Youre going to be hard pressed to get an OEM supra pump to give 500awhp also. Most guys running that much HP have multiple pumps.

Injectors? Youre going to want/need 1200cc or more for breathing room.

07-28-2012, 10:21 AM
He will need more than 1200cc with e85. Need to go with top feed setup and ID2000 OR FIC 2150 injectors. You also need to go with a larger pump for 500awhp on e85.

07-28-2012, 03:09 PM
The ID2000/FIC2150 injectors are really the only option for E85... nothing else comes close to having a predictable pulse width under 1ms like those injectors... Figure, a lean idle pulse width on e85 for that size injector needs to be around .6ms

07-30-2012, 11:16 PM
Oh yeah, forgot about E85.

07-31-2012, 06:05 AM
ok, so it sounds like ill need to get rid of the rail i have right now and just go with top feed. oh, and also, i have a 205 head on a 185 block. and it seems like a 165 rail is reccomended? will it flow enough? and will it fit on a 205 head? and it sounds like a single TT supra fuel pump wont be enough. can i run 2? one inline of the other?

08-01-2012, 12:56 AM
Just get a top feed st205 rail.

08-01-2012, 06:12 AM
ok, cause right now i obviously have a side feed. will a top feed 205 rail support my power goals on e85?

08-05-2012, 03:18 PM
Yes. There are some from China on eBay and ATS sells one.