i'm boosting my 2000 itr and i'm using a hondata s100 system. i was gonna run 550 injectors but i can get a decent deal on some 440's. will they be too small for 7-10 lbs of boost? also what is a good asking price for a very slighly(1 month) used vortech 12:1 fmu and inline fuel pump?

 

Which kit are u using?
440's should be good enough for 7-10 lbs, I'm currently using DSM 450's with hondata s200 on my 00 gsr with drag gen 3 pushing 8 lbs.


[Modified by Tegman88, 7:51 PM 11/16/2002]

 

drag gen 3 with hondata s100 and warlboro 255 hp

 

I'm pretty much running the same setup but on a GSR with 450 dsm, 255 lph walbro intank and hondata s200 at 8 lbs. It was dyno'd at 232 whp 175 ft/lb. You'll probably yield a little higher ...good luck!!! make sure you get it tuned right.

 

Are there any advantages to running smaller injectors? I ordered a set of 680cc from Viren, and am wondering if I should just keep my stockers in while I am at 7 PSI...

 

whats your setup? I don't think you need such huge injectors unless you're running high boost on a fully built bottom end.

 

RevHard Stage 2C or MaxRev kit... Still deciding
'99 B18B bone stock for now, 84mm GE sleeved in the future
Walbro 255lph HP
MSD 680cc Injectors
Aeromotive FPR
AEM EMS
Tial 35mm Wastegate
Thermal 3"
Yada Yada...

I plan on boosting 7-8 PSI on my stock block and then upping it to 12+ PSI once I get a fully built bottom end in there.

 

id go with at least 550's that what im gonna run on a kinda similar set up , i was gonna go 720's , but decided ill stick with 550's for now

 

i guess the bigger you go...there's more room to play with later...but i'm happy with my dsm 450cc for now

 

The 440's dont need the resistor box which is nice and should cover 10psi fine, although you may need to jackup your fuel pressure a bit.

If you go any bigger just forget the 550s all together and go way bigger. Then you never have to worry about upgrading.

 

440cc/min injectors will be fine for under 10psi. I ran mine at 12psi with 65psi WOT fuel pressure and that was pretty rich.
-James

 

Heres what i have...
2000 LS
Rev Hard t3/t4
440 injectors
Hi flow fule pump
Vortec FMU
Apexi SAFC

heres my prob... TO MUCH FULE if i could i would deff do like 350's
im geting gass in my oil!!!! and i have the fule cut almost half!! i'm running around 5-6 1/2 spikes on a good day round 7-8psi i ran a 14.06 @99.44 with a 2.16 60ft time so i hope this helps!

i'm close to putting my stock injectors back in and BUMPING the fule up on the SAFC.. just and idea i was told!
later..

 

This might seem a strange question but why do you guys need to run such big injectors.

Escort RS Cosworths 2000 cc 16 V (220bhp) run 330 and only need bigger ones after 300BHP and not that much bigger.

MItsu Lancer EVOS Run 460CC with 280 to 300BHP stock.

 

i agree ,i never can under stand y.....i run all motor 200hp b16 2nd gen j-spec and i use factory type -r injectors........i was gonna up grade to 310's but wont do much ,but over excess the combustion chamber w/ to much gas..i would try to go down in injector sizes also......

 

If you have an electronic fuel controller (aem, hondata, zdyne, afc, etc), and you can get them huge injectors to idle well, why not use them?