Don Terrill’s Speed-Talk

For aluminum i shoot for the moon. 400 rpm or more left a nicer finish for me. Spray it with some hydraulic fluid or wd40

Hood scoop?

Who would have thought a bigger hole would flow more?

swampbuggy wrote: ↑Wed Apr 24, 2024 9:56 pm My question is simply this, how fine / restrictive is the norm for filtration in the Scavange lines from the pan to the Dry-Sump pump ? Thanks Mark H.

The finest mesh cones we had made were 500 on each pickup.

1980RS wrote: ↑Sat Apr 20, 2024 2:37 pm WOW! how in the hell would you seal the bottom of the intake port like that???

Make sure the mating surface is square.. thats about it.

Just look at it long enough...

Either way.. port energy is some MADE UP BS to sell a BS computer program to chose a cam with an arbitrary lobe center.

I wonder how many automobile manufacturers utilize this important equation.

DD49CF24-2C89-4064-9210-6E069EA0604A.png Something seems wonky here. I’ve never see an engine fall off dramatically and level off like that without something being wrong. If the air is reaching a critical velocity from being undersized, it will start falling off and remain falling off. Are they sur...

Tom68 wrote: ↑Mon Apr 22, 2024 7:34 pm Standard cam for DV's?
Then it's all about curtain area.
Both the ports are probably too big for a small cam.

Big ports don't need big cams. DV showed us nothing again.

Methanol

Is US pump e85 actually e *up to* 85? Changing by season and location? I don't know how a carb would deal with that variability in fuel. In a pinch while leaving a popular cruising spot :wink: :wink: I stopped at a gas station to fill up because it was the only one close enough with e85. 5 gallon f...

You would gain with 850s but not for money spent. You would Def be happy with a pair of doms and see better improvement. I went through same thing with 900 plus hp sbc. Braswell told me when I went from 865 hp to the 935 setup that his 850s would still do the job. I ran it 3 times, about 7 passes. ...

Edelbrock Super Victor 2970, ported at Chopper Air Port. This one is for 400+ cubic inches, running a set of AFR 220s (2.5 sq. in. MCSA, ported by Weingartner), pushing 8000 RPM with 450-500 HP of nitrous... IMG_9610.JPG IMG_9635.JPG IMG_9690.JPG IMG_9691.JPG IMG_9694.JPG IMG_9695.JPG IMG_9702.JPG ...

Cool.. when will you have some results?

To get a better understanding of this situation with stick shift and maybe help the OP. Engine is not yet assembled. What is the better choice in this situation: Leave compression as is and choose camshaft IVC that will help prevent combustion issues but likely shift torque curve up in rpm but make...