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Just an observation (wideband results, stock fuel WS6)

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Old 09-16-2005, 03:15 PM
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Default Just an observation (wideband results, stock fuel WS6)

After having a number of people telling me either (A)- My stock fuel system would not support a 100-shot dry, or (B)- My stock fuel system was more than enough for a 125-shot dry, I went ahead and finished the kit install w/ a 100 jet, strapped on the wideband and with a quick touchup to the PE multiplier I went ahead and logged a few back-to-back WOT pulls with the spray. The result? Even with a 100% stock fuel system, the car would immediatley dip to a mid-10 AFR upon the hit and slowly roll up to a 11.2-11.4 AFR by 6000. I was pretty releived after seeing this!

BTW, I'm running 2* retard on my 'N2O map' (22* total vs. 24* for N/A), does this seem suffiecient for a shot of this size?
Old 09-16-2005, 03:26 PM
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a/f doesn't always reflect the fuel rail pressure....

With that said, I would have said you'd be fine on the stock fuel system anyway.
Old 09-16-2005, 03:29 PM
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Originally Posted by 5.8litrels1eater
a/f doesn't always reflect the fuel rail pressure....

With that said, I would have said you'd be fine on the stock fuel system anyway.
I'm not using anything to alter rail pressure, the idea was whether or not the injectors could keep up with the additional power, or at least that was always my wonder.. thankfully apparently they can
Old 09-16-2005, 03:34 PM
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Didnt 2000's come with 28lbers?
What did the car dyno w/o Nitrous.....

I would think 26 degrees and a 100 dry would be okay
Old 09-16-2005, 03:50 PM
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There is no doubt the stock fuel system will handle a dry 100 shot on a bolt on car. With my dry kit I started running into some fueling issues at about 125 shot. It was still good enough to get the job done though.

I think your timing is on the conservative side too if your running 93 octane. 26* with a 100-125 shot is not out of the question on pump gas.

The 2000 injectors are 26.6s. The smallest of all the 98-02s.
Old 09-16-2005, 04:08 PM
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What will the stock 26lber/stock fuel pump support
400RW/450RW more?
Old 09-16-2005, 04:33 PM
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I would guess around 400-425rwhp, maybe alittle more. With my cam and a dry 50 shot my injector duty was just about 100%, this was pushing 62psi of fuel though, not 58psi like with the stock pump.
Old 09-16-2005, 04:34 PM
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Actually, when I tuned the car on the dyno, it never really wanted more than 24*, yea it would make an extra 2-3whp at 26* but it just wasn't worth it, especially in this murderous S. Fla heat. I have yet to dyno it with the spray, I'm hoping for at least 400whp, maybe 420 if I'm lucky
Old 09-16-2005, 04:44 PM
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GM muscle what did u dyno w/o spray...I'm only at 340RW,u mustve been higher when u hit the 100 dry to cause the inj. to go static.I think 400RW should be fine on a 26lber and stock pump?
Old 09-16-2005, 05:27 PM
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I've never had the car on the dyno but back when I was running a dry only 125, the car should have dynoed around 320rwhp N/A. Now it should be 375-400rwhp N/A. I think that you'll be fine at 400rwhp.
Old 09-16-2005, 05:28 PM
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I think so too
I'll still check it on the dyno but I'm going to buy the 5177/heater/msd switch..
Dont need the purge,I wannna get alittle delay to aid in hook

I'll be adding inj/pum plater when I put heads on the car
Thanx again....




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