DragII

I'm gonna start my car up finally....I am getting hondata in about a month or so, but I went ahead and installed the 440s, and 255lph fuel pump...I don't plan on boosting till hondata is in...but my question is...

will this be ok? as in...will the car still idle, and drive alright?

jinxproof99

you will have to run low fuel pressure. but you already know that. i wasn't that helpful after all.

D-SPEED

wont the stock ecu go nutty with the 440s in there ? it goes into closed or open loop or something ???


[Modified by D-SPEED, 5:01 PM 2/7/2002]

ElectronVTEC

Buy a few sets of plugs. EV.

DragII

gonna kill em fast eh? but it should work though right...just for temporary?

DragII

https://honda-tech.com/zerothread?id=82211

Damn.....I'll be yanking those out this weekend

shamoo

My buddy's LS hatch turbo with a stock ECU and 440's idles fine. He does have an S-AFC though.

DragII

hrm....I need a definate answer...anybody using stock ecu and 440s??

G

If you get a potentiometer, you could use the 440s. You use the potentiometer to reduce the map sensor signal. It is usually @ .80-.90 volts at 20inHg. You want @ .60-.65 volts at idle, then it will act like an AFC in reducing the map signal when you put to -40% or so. I am using 440s with a VAFC and stock obdII ecu.

VTC_CiViC

Well I can't say about a B-series, but on my D16, I use 440's with the stock ECU. I can't idle without the aid of my V-AFC though. Anything less than like -25% and it won't start. I personally idle at -45%, even at full boost (10psi) I'm still at like -12% trim.. dem 440's are big yO!


[Modified by VTC_CiViC, 12:30 AM 2/8/2002]

DragII

thanks for all the input...I'm yanking them till I go hondata next month

dbman96

Yes, that would be best - you need SOME form of fuel control to run 440s.

MackSpeed-616

if you wanna see some fun... come over to my house and watch me swap out my hondata for my stock ecu...

BoostedSi

Ok, i just ordered 440cc for my '00si and should be here tomo. So i just need to adjust the fuel setting at idle only for it to run rite? Do i lower the fuel settings in the narrow and wide open throttle on the vafc at 1000 rpm? or throughout the whole rpm range, or will i not know til i dyno? btw i will be running 15psi. Sorry for all the questions.

VTC_CiViC

15psi with no tuning other than your *** on the seat?? Kinda scarry...

liam821

I am running DSM 450cc injectors (with a 89 CRX Si resistor box) with the help of an apex AFC in my 93 civic SI and it runs good. I currently have the fuel at -40% and it idles normal.

I am taking it to the smog place today though..i wonder if it will pass with the 450's in there? only time will tell.

liam

2000_Civic_Si

With 440cc injectors what is the max boost you reccomend running? I would also suggest getting hondata to contol everything.

VTC_CiViC

I belive they can fuel in the area of 350whp properly tuned