Don Terrill’s Speed-Talk

FWIW I think your 93 octane is the same as our down under 98 RON. If your cam installed straight up will have intake valve close 51* ABDC @.050”. My 383 engine is 11.4:1 static and cam that intake closes 48* ABDC @.050”, timing 34*. Never heard a ping with our 98 RON fuel. If your heads aren’t porte...

For reference

No harm. It just might be hit and miss and take several tries as you don’t know what the jets flow after drilling. The carb doesn’t care about number stamp or hole size, just the flow and pressure differential.

1000 M/D (limited time) and ya I know it was too big Maybe not as too big as first thought. Wished I would have gotten a few more runs as I would have like to run my modified 600 Holley VS I have. It works really good on intakes like this. Last time I ran it on this 358 with a different set of head...

1980RS wrote: ↑Sun Aug 14, 2022 8:11 pm 1000 M/D (limited time) and ya I know it was too big

Maybe not as too big as first thought.

It's a simple time/area thing. Without changing capacity to make more power you either gotta cram more air in per rev or turn more rpm, or both. Once you get much above 110% ve it's far easier to turn more rpm that to improve ve%. To go from say 6500 to 7000rpm peak power requires about 8% more tim...

I've been following this build with great interest and what has been acheived with valve size, mcsa and cam. Impressive and challenges some accepted norms. Steve, Tony, educate me on a cam of roughly 266* @.050" operating range and the heads being used that have 1.94" int valve, average 2.10 mcsa a...

I've been following this build with great interest and what has been acheived with valve size, mcsa and cam. Impressive and challenges some accepted norms. Steve, Tony, educate me on a cam of roughly 266* @.050" operating range and the heads being used that have 1.94" int valve, average 2.10 mcsa an...

Look to the marine sector if it’s aluminum protection you’re after

https://www.amazon.com/Aurora-Alumetron ... B00460QZ0O

Might be worth giving these guys a call if you haven't already

https://allcarbs.com/?v=920f83e594a1

https://blp.com/cart/index.php?main_page=index&cPath=65

But the actual stretch is so much more important than the torque applied. I have to agree with you there Tom. It’s the tension the bolt is under due to it’s stretched condition that provides the necessary clamping force, not the twisting force applied to tighten the bolt. Just look at LS critical b...

You have to get your head around flow and think distribution. https://www.felpro.com/technical/tecblogs/size-and-position-of-coolant-holes-on-gaskets.html Fun fact: coolant flow through a radiators core must go turbulent to ensure heat transfer from wall of tubes to the fins. Laminar flow would make...

Picture of said plugs?

Oil coming down from the top will mist (atomize) a bit through being caught in intake air and burn different than oil coming up from the bottom.

Scroll down to “notes on airflow” https://jonkaaseracingengines.com/shop/cylinder-heads/kaase-p-51-cylinder-heads/ Thanks for that, great insights. A statement from a very smart guy from a now defunct forum looks at it the same but from a different perspective “please consider thinking about an eng...

For anyone interested, Have ran car over last few weeks. Had a run tonight. New 255/60/15 R series radials. Backed up cam timing 4 degrees so cam is straight up 109 - 109 . Car responded with a mph increase to where it should be . I have my 950 hp (750) back on as well,still rich will be taking som...