Injector Size advice

lt1_fd3s · 10-24-2013, 10:34 PM

Ok, FC people! I need your guidance!!!

TL,DR:
S4 T2, 1/2 bridgeport (stock(ish?) small ports on center iron), Haltech Sprint RE ecu, BW S300 turbo)...

What injector sizes should i plan to run?

Longer version:

Most my rotary knowledge is FD based but I've picked up an FC (87 GXL body with S4 T2 swap) recently to enjoy and help relieve my FD from it's DD duty...

Well, the first day of owning the car I popped the engine and it's now rebuilt with a 1/2 bridgeport with stock (or nearly stock) small ports on the middle iron and BorgWarner S300 turbo... I plan to run at most 14.7 lbs but probably keep it around 10-12, based on the efficiency map of the turbo when I look it up... Ideally, I don't want to see more than 350 HP from the car, just want something to play with and enjoy and not have to worry about breaking any more plates...

Anyway, what size injectors should I run for my secondaries? would 950s be enough for the bridge and turbo? or should I play it safe and run 1600s? Computer is a Haltech Sprint RE. And are stock injectors 550s? or 440s?

Thanks for any help anyone gives...

reese.leblanc · 10-25-2013, 01:08 AM

HopeStock TII injectors are 550s.

1600s should be plenty with an upgraded fuel pump. Personally, I would spring for a pair of the newer EV-14 style injectors. For one, you would know exactly what condition they are in. It's your choice to go with Injector Dynamics or the less expensive versions available through a number of vendors.

this helps!

Pete_89T2 · 10-25-2013, 05:40 AM

Stock T2 injectors are 550's (pri & sec), and I believe the N/A's are 460's, not 100% sure on those though.

Whatever size you need, I'd spring for the ID's as I've heard nothing but good reviews on those. Performance wise, the ID's are supposed to be very consistent, from minimal duty cycles to max.

lt1_fd3s · 10-25-2013, 10:30 AM

thanks for the info... i was thinking the stock were 550 but wasn't too sure... 2nd guessing myself and all..

anyway, i know one of you i could have called up directly and talked to about this... but this also puts more information on the forum for others to find in the future...

omega · 10-25-2013, 10:37 AM

With the Haltech re I would run 1000cc primary's and 2000cc secondarys. Also you are going to need a good pump. I like the id injectors best. Its a lot of injectors but you can always tune down the injectors. I always over engineer my projects . Safety first!

88turboii · 10-25-2013, 04:12 PM

two ID2000's, no secondaries

10-24-2013, 10:34 PM	#1
lt1_fd3s WNC Tour Guide Join Date: Feb 2008 Location: WNC iTrader: (3) Posts: 780 Rep Power: 17	Injector Size advice Ok, FC people! I need your guidance!!! TL,DR: S4 T2, 1/2 bridgeport (stock(ish?) small ports on center iron), Haltech Sprint RE ecu, BW S300 turbo)... What injector sizes should i plan to run? Longer version: Most my rotary knowledge is FD based but I've picked up an FC (87 GXL body with S4 T2 swap) recently to enjoy and help relieve my FD from it's DD duty... Well, the first day of owning the car I popped the engine and it's now rebuilt with a 1/2 bridgeport with stock (or nearly stock) small ports on the middle iron and BorgWarner S300 turbo... I plan to run at most 14.7 lbs but probably keep it around 10-12, based on the efficiency map of the turbo when I look it up... Ideally, I don't want to see more than 350 HP from the car, just want something to play with and enjoy and not have to worry about breaking any more plates... Anyway, what size injectors should I run for my secondaries? would 950s be enough for the bridge and turbo? or should I play it safe and run 1600s? Computer is a Haltech Sprint RE. And are stock injectors 550s? or 440s? Thanks for any help anyone gives... __________________ WNC Tour Guide - Including the Tail of the Dragon - PM for details

10-25-2013, 10:30 AM	#4
lt1_fd3s WNC Tour Guide Join Date: Feb 2008 Location: WNC iTrader: (3) Posts: 780 Rep Power: 17	thanks for the info... i was thinking the stock were 550 but wasn't too sure... 2nd guessing myself and all.. anyway, i know one of you i could have called up directly and talked to about this... but this also puts more information on the forum for others to find in the future... __________________ WNC Tour Guide - Including the Tail of the Dragon - PM for details

10-25-2013, 04:12 PM	#6
88turboii destroy, rebuild, repeat Join Date: Feb 2008 Location: Charleston, SC iTrader: (0) Posts: 395 Rep Power: 17	two ID2000's, no secondaries __________________ 1993 RX-7 Touring MB, stockport 13B-REW, 9.4CR rotors, T04S 60-1/p-trim single turbo 1986 RX-7 Base project track beast

10-25-2013, 01:08 AM	#2
reese.leblanc Doing my own thing Join Date: Feb 2008 iTrader: (2) Posts: 209 Rep Power: 17	HopeStock TII injectors are 550s. 1600s should be plenty with an upgraded fuel pump. Personally, I would spring for a pair of the newer EV-14 style injectors. For one, you would know exactly what condition they are in. It's your choice to go with Injector Dynamics or the less expensive versions available through a number of vendors. this helps!

10-25-2013, 05:40 AM	#3
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD iTrader: (1) Posts: 874 Rep Power: 15	Stock T2 injectors are 550's (pri & sec), and I believe the N/A's are 460's, not 100% sure on those though. Whatever size you need, I'd spring for the ID's as I've heard nothing but good reviews on those. Performance wise, the ID's are supposed to be very consistent, from minimal duty cycles to max.

10-25-2013, 10:37 AM	#5
omega The new Sheriff in town.. Join Date: Sep 2013 iTrader: (0) Posts: 24 Rep Power: 0	With the Haltech re I would run 1000cc primary's and 2000cc secondarys. Also you are going to need a good pump. I like the id injectors best. Its a lot of injectors but you can always tune down the injectors. I always over engineer my projects . Safety first!