thewhitewarrior

hi, just need to know what size injectors ill need for around 500 bhp, and do the later v5-v6 sti injectors fit in the v1-v2 sti fuel rails, thanks phil.

Shaun

I run 1150cc injectors, but these are Newage fitment. Not sure if injectors that big are available for side feed.

thewhitewarrior

blimey they are big, what bhp is that with?

Scoobyslammed

I run 800cc v-port injectors . . .
Bought them from

http://www.andyforrestperformance.co...7A93/oben4.gif


Also had my Turbo in inlet pipe from Andy... Ring him or email him... I'm sure he'll advise you after running through your spec

thewhitewarrior

thanks for that there about what i was thinking, would 850's be ok?

Shaun

800cc's at standard fuel pressure will be close if not on the limit. I had to change from 800's when going over 500bhp, but that was at standard fuel pressure and the standard Spec C pump. Had I even ran with my current Bosch pump on standard fuel pressure I may of been ok.

Jay_

I run 850's upto 485bhp comfortably.

Scoobyslammed

There was plenty left out of the 800cc V-ports... I was advised by Andy Forrest these would be fine for my spec
I run uprated fuel pump and Cossie FPR with parrallel fuel rail mod...

stevebt

iTrader: (8)

I'm still on 740cc with no raised fuel pressure or any probs

thewhitewarrior

good, good, i have a walbro pump and uprated fpr so should be fine, now where to get some 850's from and quick?

Midlife......

iTrader: (2)

I'd ask Mark Aigin at Lateral Performance

Shaun

jimes

850cc Red Fuel Injectors - Subaru Impreza Skyline RX-7 on eBay, also Injection Fuel Systems, Performance Tuning Parts, Car Tuning Styling, Cars, Parts Vehicles (end time 11-Jan-09 11:29:42 GMT)

screechy

iTrader: (4)

I have 1000cc top feeds on my 97 type r but have a parallel rails that also converts to top feed injectors.

Running 530bhp with the injectors at about 75 - 80 % capacity. Had some 850cc Deatschwerks injectors on there before but maxed them out at 480 bhp.

Also using a bosch in-tank pump.

Midlife......

iTrader: (2)

Mark Aigin at Lateral Performance can flow test the injectors to make sure they are up to the job....... why compromise ??

Shaun

stevebt

iTrader: (8)

Thats strange as I'm running 740cc deautchworks injectors with no probs, altho mine are flow tested and matched ??

screechy

iTrader: (4)

Just checked and they were also the 740cc injectors but they were not tested or mapped. Given the chance again I would go to Mark @ Lateral.

Midlife......

iTrader: (2)

ZEN Performance - Performance upgrade solutions for Japanese cars - Subaru & Mitsubishi Specialists

Area 52 Autosport

740's should be sufficient for 500, 850's will have room to spare (with the right fuel system). We flow test and match our injectors.


Jase.

Pavlo

I ran 850s up to 600hp, so I would say you have a problem with your fuel system installation (ie power supply, restrictive fittings)