I recently had a 3 day visit from Dart 270 to Australia,So i pre assembed a spare slant race engine so we could do a couple of days of engine dyno work.This was the fist time i had engine dynoed a N/A slant in about 10 years.
First run it pulled 333 HP & 330 ft lb & after the first cam change it made 347 HP & 344 ft lb. That was as good as it got as we ran out of cams & heads & Lou had a plane to catch.I now have a couple more cams & things to try wich will happen soon.
The engine runs 3 x 45 webers & 100 oct gasoline.

More to come :

Cameron

niiiiiiiiiiiiiiiiice!

Thanks for posting the info Cameron.

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Official Cookie and Mater Tormentor.

Thats quite the spare engine.......

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Yeah....Im the one who destroyed this rare, vintage automobile.....

It sounds like I need to assemble some of my spares!
Can you give us more details, like compression and cam specs?
DD

Amazing. Makes me really want to start collecting parts for a race slant that I can swap back and forth with a mild daily driver slant.

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'74 Duster w/ HEI ignition, beat to snot suspension, A904, 8.25" 3.55 SG rear, still being tuned up and gets 17 MPG

Know how they always build a better idiot? That's me

Cameron, Lou was telling me about this particular test this morning, and my jaw dropped, quickly replaced with a big smile. He was clearly a kid in the candy shop! Congrats, we certainly would enjoy some more details without giving away your secrets!

MJ

That's excellent. Congratulations!

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DynoDave
1970 Plymouth Duster
1972 Dodge Charger Rallye
1977 Chrysler Cordoba
WPC # 12304

I am now back in VA from my second trip to NZ and Oz...

Had a great time in Sydney, Australia with Mr. Turbine.

The most notable part about that engine was the super fat torque curve - over 320 ft-lbs from 3500 to 5700.

I cannot emphasize enough how useful engine dyno tuning can be. We did cam swaps in <1hr and head/cam swaps in ~2hrs with 2 guys working. Adjustable cam sprocket made cam timing changes happen in 15 min. 5 cams, 3 heads, carbs, cam timing, ignition....

Lou

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Home of Slant6-powered fun machines since 1988

Numbers like that are why Cameron and family are regarded as Slant gurus in Australia.

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Richard (aka Fingers)

Tried another cam last weekend & gained a little more,354 @ 5900rpm.
1 more flat tappet on the way & then its time to test a roller.
To answer 1 of Dougs questions comp is 12 to 1.

More to come

I've always heard that the 3 sidedraft Weber setup was the unbeatable combination on a slant.