Don Terrill’s Speed-Talk

Looking like you are extremely close to Larry calculated, very impressive.
Looking forward to some details, appreciate you sharing.

Slide rule says 9.95 @ 134 mph @ 3500 pds and 650 hp

As an Aussie i am ashamed of what this company doe's to small business owners and keeps doing. By now people should know what this company doe's........so stupid is what stupid doe's........if you buy speedmaster it's on you. Support small business like broader, because like he said he put's his he...

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 ...

Great information shared by Larry,Chad and Mike on there results,what it does tell me there are no guarantees as Larry and Chad had opposite outcomes on the dyno. On the 4500 plenum I think the extensions don't hurt area like a 4150 plenum but that is me thinking out loud. I am working on a 4150 SV ...

Anybody have pics of their work? DSC03108_1280x960.jpg DSC03114_1280x960.jpg DSC03116_1280x960.jpg DSC03127_1280x960.jpg DSC03140_1280x960.jpg DSC03142_1280x960.jpg DSC03143_1280x960.jpg DSC03144_1280x960.jpg DSC03147_1280x960.jpg DSC03148_1280x960.jpg DSC03154_1280x960.jpg   Impressive work as alw...

I have run the PSI 1277 springs for years and been happy with them. I just upgraded to a PSI 1.30" diameter spring looking for better stability in the valve train to turn 8000rpm. The springs are not much more expensive but I had to get a custom set of retainers from xledyne which were expensi...

I have run the PSI 1277 springs for years and been happy with them. I just upgraded to a PSI 1.30" diameter spring looking for better stability in the valve train to turn 8000rpm. The springs are not much more expensive but I had to get a custom set of retainers from xledyne which were expensiv...

Any idea what these things flow stock? Dart has 2 numbers. Catalog says 238cfm, tech sheet says 210. Just curious if anyone has ever flowed a set. I went back through my notes Intake 210cfm - 0.500" lift @ 28" Exhaust 138cfm - 0.500" lift @ 28" They are typical sbc ports that bo...

20240103_132344.jpg 20240103_133322.jpg Black line is without drop base lambda was 0.86 and sounded rich coming into the pull. Fitted drop base no other changes is red line. Lambda back to 0 91,engine was not choking on the fuel ,best power run of the day with 1050 carb on a 2" 4hole tapered s...

Great job and keep up the good work. I love seeing somebody who doesn’t just build an engine and think they have a race car. You are going to upset a lot of hobby types who do not understand average power and making a car work. Love following along with this and look forward to you continuing to up...

Any idea what these things flow stock? Dart has 2 numbers. Catalog says 238cfm, tech sheet says 210. Just curious if anyone has ever flowed a set. I went back through my notes Intake 210cfm - 0.500" lift @ 28" Exhaust 138cfm - 0.500" lift @ 28" They are typical sbc ports that bo...

I ran those heads in different configurations for a number of years from 10.6.1 - 11.65.1 compression in my 3620 pound streeter. A few years ago on my dart 383 block those heads made 522 ftlbs @ 5300rpm and 570hp @ 6600rpm. Average CSA was 2.15" still with 1.94" - 1.5" valves. Ported...

<t>I ran those heads in different configurations for a number of years from 10.6.1 - 11.65.1 compression in my 3620 pound streeter. <br/> A few years ago on my dart 383 block those heads made 522 ftlbs @ 5300rpm and 570hp @ 6600rpm. <br/> Average CSA was 2.15" still with 1.94" - 1.5" valves.<br/> Po...

I've seen the old Moroso slide rule has been mentioned here at Speed-Talk every now and then. I was kind of surprised at the amount of merit it gets from folks I wouldn't have thought put any faith into it. Opinions? FWIW, I went back and dug out some old time slips, chassis dyno results, engine bu...