Author Topic: Ray Paquet  (Read 2769 times)

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e philpott

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Re: Ray Paquet
« Reply #30 on: September 13, 2021, 10:46:06 AM »
Amen on the valve angles ! You can only sink a valve so far to avoid valve to valve clearance problem , pretty much what ended the Hemi in Pro Stock once the field was leveled in the 80's with 500 inch rule (my opinion), by the time the 500 inch rule came out in Pro Stock the cam lift surpassed what Hemi's could run to be competitive , Harley Davidson Shovel heads had the same problem if you build them up they run into valve hitting the valve compared to what replaced it with the EVO design , but the Hemi like the Cammer when they were designed a .600 lift cam was considered big cam where now it's a street cam lift

allrightmike

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Re: Ray Paquet
« Reply #31 on: September 13, 2021, 02:05:11 PM »
   Would slightly smaller dia. valves alleviate the valve clipping problem?

e philpott

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Re: Ray Paquet
« Reply #32 on: September 13, 2021, 02:24:27 PM »
the valves just face each other too much , wedge motors don't have this trouble , Boss 429 doesn't have this trouble , Cammers don't have much trouble but they only have a designed in 1.3 rocker ratio limiting lift . Sinking the valves in by cutting the seat down is common practice to move the valves away from each other in the Harley Shovel head world and would imagine that's what the Mopar guys did too

1968galaxie

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Re: Ray Paquet
« Reply #33 on: September 13, 2021, 03:26:11 PM »
Good Paquet video - car details

https://www.youtube.com/watch?v=V7_kZyMoagk

shady

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Re: Ray Paquet
« Reply #34 on: September 14, 2021, 08:39:52 AM »
That's Fantastic! Thanks for posting.
What goes fast doesn't go fast long'
What goes fast takes your money with it.
So I'm slow & broke, what went wrong?