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Mine is a fairly mild set up and it makes like 720hp
with a single 1050. I could use a bigger cam and more
carb at 405ci

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Just wanting to know what some of the most impressive W9 combos that you know of, made? Can be RP or standard, as long as you can still find some of this stuff and it works in a drag race application. I don't want some one-off pieces that you can't find anywhere like some of the W8 stuff. I'm going to be in the parts collecting stage of my car again soon, and I would just like a proven combo to start tracking down pieces if I come across them. I don't want to re-invent the wheel. Thanks!

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What one off stuff? Other than valve covers what is unique to a W8 vs. W9? I've seen WOO/RP/Alcohol stuff make over 900HP. 700-800HP w/ Nascar W8's is very obtainable, CFE's will get you over 900HP.

Mike Gray

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Just wanting to know what some of the most impressive W9 combos that you know of, made? Can be RP or standard, as long as you can still find some of this stuff and it works in a drag race application. I don't want some one-off pieces that you can't find anywhere like some of the W8 stuff. I'm going to be in the parts collecting stage of my car again soon, and I would just like a proven combo to start tracking down pieces if I come across them. I don't want to re-invent the wheel. Thanks!

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800 HP? ET calculator says 9.40's @ 2900 lbs. I could handle that! What bore and stroke do you have Mike? Are your heads CNC ported?

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4.125 bore with a 3.79 stroke
EDIT
Yes they were CNC'd then I touched them up after that

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some recently dyno'd a W9 combo at a bit less than 1000 HP:
https://board.moparts.org/ubbthreads/show...e=6&fpart=1

From what I understand the W9 is a lighter update on the W8 and likely with the Raised Port version could have more potential.

I imagine the bucks and the details behind that type of motor is pretty high.

Greg

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Thats a W-8. Yes the W-9 is a light version of a
W-7 and W-8 combined with some differences... the
W-8 makes more power.

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I seen a 435 inch W9RP make 825..but it was a nitrous motor..but had some very good parts in it..I seen the heads and they were really nice.. to pretty to put on a motor..LOL

I was told that a max effort W9 could make 900hp..

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900 ain't chop liver, but a 9 has nothing for an 8.

As you well know.

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We put together a W-8 15* NASCAR take off...

4.185 x 3.79, 13.8 comp, 420 cast intake, 4150 carb, about.760 lift @ the valve. Very mild stuff.

No lightweight parts...the engine is built for oxide. Made 861 @ 8100 and 635 @ 6400 on a very accurate inertia dyno.

A W-8 is not "exotic".

A max N/A single 4 cast intake W-8 will make 1000+.

I have yet to see a W-9 make that kind of steam and probably never will.

What I find hard to believe is not one company is casting a new W-8!!!

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Jim..Looks like you have a happy dyno there 861..with that kind of compression,carb,and cam..boy that is hard to believe..

My old 16 degree W-8 would make 880hp on BES's dyno..with dominator,16.1,and 950 lift cam..and old technology..so I think your probably around the 800 to 820 range..

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We put together a W-8 15* NASCAR take off...

4.185 x 3.79, 13.8 comp, 420 cast intake, 4150 carb, about.760 lift @ the valve. Very mild stuff.

No lightweight parts...the engine is built for oxide. Made 861 @ 8100 and 635 @ 6400 on a very accurate inertia dyno.

A W-8 is not "exotic".

A max N/A single 4 cast intake W-8 will make 1000+.

I have yet to see a W-9 make that kind of steam and probably never will.

What I find hard to believe is not one company is casting a new W-8!!!

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Jim..Looks like you have a happy dyno there 861..with that kind of compression,carb,and cam..boy that is hard to believe..

My old 16 degree W-8 would make 880hp on BES's dyno..with dominator,16.1,and 950 lift cam..and old technology..so I think your probably around the 800 to 820 range..

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I hope not.

This dyno seems to be real close to a number of cars that have made laps, including Emilio's blue Duster that won Pinks All Out. We've talked to a half dozen guys that run #s right on this dyno.

We have a good 15* head. It flowed just over 400cfm @.800 with good mid #s and speed, on MBEs bench, a done up 420 intake and a big 4150.

Time will tell. The Dart its going in will be finished and at ATCO in the fall. Its a big tire backhalf, with a good 3sp that we will gear and converter for N/A before we spray it next year.