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868rwhp/1233rwtq

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Old Oct 3, 2003 | 04:47 PM
  #1  
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Default 868rwhp/1233rwtq

I'll have photos tonight or tomorrow, but I thought you might like to see last night's dyno chart. At a DA of 7200 ft., it made 868rwhp and 1233 ft-lbs (unadjusted for DA) on a 150 shot. Adjusted performance would be ~930 and 1320.
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Old Oct 3, 2003 | 05:38 PM
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Default Re: YS-Trim/NOS Dyno Results

interesting. you have as many ft-lbs of tq as there are feet in the 1/4 mile. very nice, and we would all love to see those numbers on the graph!

also what are your thoughts on the correction factors and forced induction motors? i know TSP dynoed their 03 duramax and the stock dyno numbers were way off at only 3300' of elevation (dont know the DA).
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Old Oct 3, 2003 | 05:55 PM
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Default Re: YS-Trim/NOS Dyno Results

It is very difficult to produce reliable chassis dyno data at these power levels, particularly at 5500 ft. elevation at a DA of 7200 ft. We ruined a set of MT Drags last night, the rubber was balled-up all over the tires.

I've sent PSJ the dyno chart and asked him to host the chart and upcoming photos.
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Old Oct 3, 2003 | 05:56 PM
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Default Re: YS-Trim/NOS Dyno Results



How have you kept the heads sealed up?

what fuel used?

how much timing for that pull?

and anything else you could share about the combo .

Awesome.
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Old Oct 3, 2003 | 06:05 PM
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Default Re: YS-Trim/NOS Dyno Results

We changed to 9/16" ARP studs torqued to 135 lbs., receiver grooved block, O-ring'd heads, .050 SCE copper gasket with lots of copper coat (per Eastside Dyno).

We ran 108 U/L, with 22.5 degrees advance.

Absolutely no sign of any cylinder pressure loss or coolant loss or any lifting of the heads.

The car's major specs are shown on the Boosted List.
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Old Oct 3, 2003 | 06:15 PM
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Default Re: YS-Trim/NOS Dyno Results

That is AMAZING!

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Old Oct 3, 2003 | 06:17 PM
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Default Re: YS-Trim/NOS Dyno Results

Whoa! Very nice.
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Old Oct 3, 2003 | 06:21 PM
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Default Re: YS-Trim/NOS Dyno Results

well done! great numbers
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Old Oct 3, 2003 | 06:25 PM
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Default Re: YS-Trim/NOS Dyno Results

We ruined a set of MT Drags last night, the rubber was balled-up all over the tires.
Yeah, I HATE when that happens, lol.

Nice numbers!
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Old Oct 3, 2003 | 08:20 PM
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Default Re: YS-Trim/NOS Dyno Results

Totally Awesome!!!!!
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Old Oct 3, 2003 | 11:28 PM
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Default Re: YS-Trim/NOS Dyno Results

high altitude sucks

Congrats on the numbers, when are you guys expecting to go to the track? Got a real beast there!
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Old Oct 4, 2003 | 01:24 AM
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Default Re: YS-Trim/NOS Dyno Results

Awesome #'s...
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Old Oct 4, 2003 | 06:38 AM
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Default Re: YS-Trim/NOS Dyno Results

Awesome!!!!!
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Old Oct 4, 2003 | 08:22 AM
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Default Re: YS-Trim/NOS Dyno Results

When are you hitting the track?

Who built the motor for you?

Cheers,
Chris
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Old Oct 4, 2003 | 08:32 AM
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Default Re: YS-Trim/NOS Dyno Results

Will make some runs today in Denver, the slowest track in the US! Probably run mid-9s up here in nose bleed country.

Dragon Race Engineering of Broomfield, CO, built the engine and car. We are turning our attention to the rear chassis and will have it narrowed by Madman.
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Old Oct 4, 2003 | 11:47 PM
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Default Re: YS-Trim/NOS Dyno Results

congrats glad things are working out for you
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Old Oct 5, 2003 | 08:28 AM
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Default Re: YS-Trim/NOS Dyno Results

Thanks, Ken. We retorqued the heads to 145 last night and installed 300 jets. Will make some runs today.
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Old Oct 5, 2003 | 12:39 PM
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Default Re: 868rwhp/1233rwtq

Maybe I'm not getting something, but since when do nitrous cars and/or blower cars use the same correction as NA cars?
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Old Oct 5, 2003 | 02:10 PM
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Default Re: 868rwhp/1233rwtq

they dont, but it is a complicated matter. since you have to correct somehow since he would have certainly made more power at sea level but not as much since the barometric pressure with intercooled forced induction motors are not using the same air as a N/A motor ofcourse. wow, that was a long sentence. again i will point to a stock forced induction motor like our duramax turbodiesel. at 800 feet of elevation our truck made a normal 235 rwhp hp (allison automatic tranny) but when TSP at 3300 feet of elevation dynoed their same year and combo duramax, it made a silly over 300 rwhp number (flywheel is 300 hp) and there is a sickly 25-30% drivetrane loss easily on HD trucks. the dynojet is a great tool, but the numbers arent std and arent accurate for different parts of the country and different motor types.
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Old Oct 5, 2003 | 08:03 PM
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Default Re: 868rwhp/1233rwtq

Sorry for the ignorance, but what is your set up?

Greg
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