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Looking for opinions on injector sizes from you fellow NA freaks.

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Old Jan 15, 2003 | 12:56 PM
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Default Looking for opinions on injector sizes from you fellow NA freaks.

Here's the deal. It looks like I'm going to end up with 84.5mm bore 12.1ish compression. I have Crower 63403 bumpsticks installed, and Hondata S200 for a brainbox. Now to the point. The nearest Hondata tuner is 80 miles away, so when I get the motor back in the car and broken in, I will NOT wish to have to tune...get new injectors and tune again...so I'm looking for opinions on injectors for this application...what you fellas think? Stock good enough? No? What to go with?
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Old Jan 15, 2003 | 12:58 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (TimoneX)

330cc's
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Old Jan 15, 2003 | 03:28 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Spade)

RC 310's would take care of it...
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Old Jan 15, 2003 | 03:36 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (All Motor Rex)

310 should be ok.
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Old Jan 16, 2003 | 09:27 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (tominos)

Thanx for the input guys.
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Old Jan 17, 2003 | 03:18 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (TimoneX)

Many people have done well with RC 310's and 370's, so for your setup they should do the trick. I suggest RC highly. -HIT


[Modified by HookUpsImportTek, 3:53 AM 1/23/2003]
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Old Jan 17, 2003 | 03:44 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (HookUpsImportTek)

I just did a B20 Non VTEC with ~11.8:1 62404 cams with DSM 290cc injectors, and had a bad problem under 1500 RPM with it running real rich. I even lowered the fuel pressure down to 25 PSI. Even an S-AFC could not fix it, especially since the AFC will not go below 1000 RPM.

However could be an isolated case.
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Old Jan 17, 2003 | 05:44 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Westrock2000)

Hmmm...yeah I'm running rich down low now with stock injectors, but I have an untuned Hondata S200 and Vafc for brains. The DSMs require resistor packs or something do they not?
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Old Jan 17, 2003 | 06:28 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (TimoneX)

I believe thats only for the larger injectors off of the turbo'ed eclipses. I think there like the 360cc's or something.
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Old Jan 17, 2003 | 07:53 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Westrock2000)

I would suggest 310cc Injectors and an Adjustible FPR and AFC for tuning.

Suprdave
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Old Jan 17, 2003 | 08:29 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Suprdave)

Have the FPR(B&M), have the Vafc, and Hondata S200. I just don't wanna get to tuning and come to the conclusion my stock injectors won't cut it.
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Old Jan 17, 2003 | 08:52 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (TimoneX)

You can always raise the Fuel Pressure to compensate...

310s are gonna be be good to an excess of 210whp. It depends on if your staying 1.8L or going 2L.

Suprdave
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Old Jan 17, 2003 | 11:20 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Suprdave)

always have more fuel than you need. by at least 20%
370-440cc is my recommendation
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Old Jan 17, 2003 | 07:53 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (sgT)

Thanks for offering input sgT, I'll take that under advisement.
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Old Jan 17, 2003 | 08:19 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Westrock2000)

I believe thats only for the larger injectors off of the turbo'ed eclipses. I think there like the 360cc's or something.
450's in the turbo DSM's.

I think I'd go with 370's in your case, too. Right now I'm running 310's, which seem fine but I dont know what my duty cycle is on the injectors. I'd rather be using 370's, instead of 310's @ close to 100% duty cycle, understand?

(Note: That was just a comparison about duty cycles and injector load. I dont know what I'm running. )
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Old Jan 17, 2003 | 08:32 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (sneakychaos)

Hmmm...just saw someone selling some DSM 450cc injectors too. You guys think I should jump on them? They're easily adapted to GSR use correct?
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Old Jan 17, 2003 | 08:53 PM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (TimoneX)

440cc is what i am using. 225whp 2L with spec b's
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Old Jan 18, 2003 | 12:03 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (CART fan)

I agree, I would use 440's. If you are running higher rpms you'll need to have a bigger injector so that you can run less injector duration.

Nice power figure, Cart Fan.
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Old Jan 18, 2003 | 07:35 AM
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Default Re: Looking for opinions on injector sizes from you fellow NA freaks. (Rocket)

Thanx Robert. I think I'll go 4 it.
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