Don Terrill’s Speed-Talk

I have been using Pipemax for over 20 years. Learned so much from his programs. In program it asks for ex port length so it may calculate pipe length, so pipe length is from flange. Try changing port length and it will give a different pipe length. I remember you from moparts forum, which I m no lon...

Have you tried searching e bay? They are always having small block valves, but you are looking for big stuff.

yes that is very unique. I am far from an expert here, but I would love to play around with that. By your numbers you are pretty much optimized. I agree with 3 x 2 bbls, for better distribution mostly, and a little more flow. Some more port flow also, Any more cam timing and it will need to RPM high...

way back when I was still working we used to wrap bacon on the turkey as we were smoking it. need I say delicious!

Is there an RPM where you should seriously consider using Titanium valves. 150 gm intake valve going over 8000rpm should I be looking Titanium?

TI valve I am considering is 94 gm I know it would be much easier to control that than a 150 gr valve.

Opinions wanted ....

I would use Marine Tex. I have used it for years. There are other good epoxies, but my experience is with Marine Tex.

I would try epoxy, use a good epoxy and when cured file or shape it smooth.

just wondering where i can get this program

Per Billy Godbold, fast opening exhaust lobes are more header sensitive and can take a lot of work to make power with. He said a lot of their Sprint Car customers use them. I'm glad I scrolled all the way back to this thread's resurrection as I was going to post the very same thing. I got to ask hi...

First thing you need to figure out is, what's the job of the exhaust profile ? 1: Evacuate the cylinder 2: Cause a low pressure area under the intake valve, to start intake flow, during overlap. 3: Don't reduce pressure too much, during power stroke. 4: Control heat. What else ? what I am speculati...

Resizing the rods for 3 tenths is asinine, and there is zero guarantee (or possibility) your mic will match theirs. My take is you had no bearing issues despite the rod failure, I would be looking to replace the bearings with the exact sizes and brand that you had used previously. I believe you sai...

The concept of "fast" or "slow" exhaust cam lobes does not appear in any of my engineering textbooks. May I ask; "What is the definition of a fast or slow lobe? Do we have velocity or acceleration numbers to go along with a definition? If we are speaking of valve lift per u...

I do not have the resources to spend on a dyno. I do use a few desk top dyno programs to help figure out trends or tendencies, I use dynomation and pipe pro 450. I have learned much from pipe pro, it set me straight many times. just recently started with dynomation. I run a wedge chambered Mopar BB,...

From what I have witnessed ... the lower the compression ratio the exhaust lobe should be faster and shorter; high compression needs an exhaust lobe slower and longer. Almost the same around .200" lobe lift. Now a definition of what is high compression and what is low compression is needed. My...

Funny this is 9 years later from my original post I am still posing this question. I have read every post from David Vizard, everything from Harold Brookshire (rip) and comments along the way from Mike Jones . Funny thing is they all have differing views. I have been racing since the early 70s not a...