Don Terrill’s Speed-Talk

144 ve? Sounds optimistic

Runners will stay divided, we will use the stock length and 2nd harmonic.
Juhana, get a speed control. Scr is best.

I think they are good for a street application or a tow truck. Plenty low and mid range torque. With a 700r and 3:27 gears traction in first will be an issue.

I would think creating a curved roof on the intake port at the angle TPI meets the heads intake runner would make the resonance wave at that enlarged point, taller and slower, becoming misshapen…and probably dissipate the top… A larger resonance wave is slower than a small one so that part of the a...

Tom68 wrote: ↑Sun Apr 14, 2024 8:40 pm

Carnut1 wrote: ↑Sun Apr 14, 2024 6:58 pm I feel in order to increase mass flow the csa has to go up around turns. What this does to the resonance I am not sure. Thanks

It will at least be more important than the resonance.

I like how you think. Thanks

I feel in order to increase mass flow the csa has to go up around turns. What this does to the resonance I am not sure. Thanks

Thanks for the offer Bill. At this time I have no plans to cut one up unless I ruin the one I have!

Excellent. Thanks

https://youtu.be/2Papuv13AU8?si=TUi3ZJ-cZUkp8zNW I have a TPI project comimg in soon so I dug out this long dead project for some testing before the parts get here. Shortblock will be a low mile L98 so it will be cast pistons. Most likely get a custom cam ground after all the flow work has been sort...

Funny but true, Mikey was quite the driver way back when I built his Mustang but he texted me this week stating how well this engine worked out and he has never needed more than half throttle. I think that is hysterical, It is a tall Bronco on 40" tires and 5:13 gears!

I enjoyed all of it! My son and I built a swirl port special a few years back that runs way harder than it should. Some mild port and chamber work, 1.6 exhaust valves, hyd roller cam, 9.3 compression, headers, rpm intake, 4180 hoĺley. Now after seeing Charlie's testing I've got some ideas to make i...

Doober wrote: ↑Wed Mar 20, 2024 1:19 am Gotta say I enjoyed your videos on these... I'm guessin' these won't be ideal at that port volume for something like TPI unless it was a mite bit over 350ci

At 240cc and over 300 cfm they will need some compression and cubes! Thanks

Not for a while. Thanks

F-BIRD'88 wrote: ↑Tue Jan 16, 2024 10:10 pm Medication. Seeing what happens now if the fin/ vane/ ramp is at the 8 o'clock position would be interesting to me..
Great videos.

I do quite a few videos on changing ramp clock positions and recording air and dykem flow patterns. 8:00clock happens. Thanks

I am very busy so I don't give Speedtalk the time I used to. Thanks