Don Terrill’s Speed-Talk

A low power 302, you could just get a 305 or better still a 307. Not necessarily low power but that's subjective really. I'm thinking more the advantage of the larger bore which the 305 or 307 don't have. Maybe a 2.02/1.60 valved Vortec head (modest flow but certainly enough for the smaller cubes)....

First of all, with a full length TPI will maximum power come after 5500 RPM? Some of the joy with the TPI is the incredible strength from low rpm, there are other manifolds for higher RPM. How large is the engine going to be? A 400 definitively needs larger ports than a 350. If we stay at 350 or 35...

There was story going around a few years ago, something I read in a newspaper about an artist who painted and sold his work at local flea markets and such. Just an honest guy cranking out one individual piece and then another. Years later, this same artist was on a tour of China for some recreation....

I use the Drag Times DA calculator for my correction factor. Is this reasonable? its better and more accurate to use Air Density OnLine's Calculator ( even though it sometimes calculates wrong Vapor Pressure value ) it calculates the Density Altitude Feet closer than DragTimes or Richard Shelquist ...

this is what ETAPRO5 software calculates for your 12.75ET and 105.93 MPH :   Wow! That's a lot of data to digest. A couple of questions come straight to mind though. On that 12.75 run you say 217 RWHP. And that's averaged over the run correct? That looks to be about a 33% drivetrain loss which incl...

As for the Moroso calculator. One example I have is as follows: 86 IROC: 3650 lbs., McCreary Road star tires @ 26", 3.27 gear Engine 2007 353: 4.020” x 3.48” 670 Holley RPM Air Gap Vortec heads. Comp XR276HR (in 2 106 ICL) 10.05:1 Cranking pressure 185-190 May 11 2009 Chassis dyno Max power: 2...

As for the Moroso calculator. One example I have is as follows: 86 IROC: 3650 lbs., McCreary Road star tires @ 26", 3.27 gear Engine 2007 353: 4.020” x 3.48” 670 Holley RPM Air Gap Vortec heads. Comp XR276HR (in 2 106 ICL) 10.05:1 Cranking pressure 185-190 May 11 2009 Chassis dyno Max power: 28...

bob460 wrote: ↑Sun Apr 07, 2024 6:08 am Seen that video the other day........Man Why would you not check lash before you do your first pull.........

Yeah. The outcome could have been far worse.

Progression Ignition... Did you manage any A to B testing with the Progressive compared your best results ignition-wise? This came back to me while watching this 406 dyno test on the Unity MotorSports Garage channel. If you do/have seen it, what are your thoughts on the results? https://www.youtube...

Did you manage any A to B testing with the Progressive compared your best results ignition-wise? This came back to me while watching this 406 dyno test on the Unity MotorSports Garage channel. If you do/have seen it, what are your thoughts on the results? https://www.youtube.com/watch?v=_MMCnP8570U...

This Holley Street Dominator was my intake on the late 70's early 80's 400 SBC street terror I built while in college. Does anyone have an opinion on how that old tech stacks up today? After 50 pages, it may have been covered here but I missed it. 50! https://www.youtube.com/watch?v=G_KBV8JBnLY&...

Progression Ignition... Did you manage any A to B testing with the Progressive compared your best results ignition-wise? This came back to me while watching this 406 dyno test on the Unity MotorSports Garage channel. If you do/have seen it, what are your thoughts on the results? https://www.youtube...

vortecpro wrote: ↑Tue Apr 02, 2024 11:06 am Next the rear suspension will have to be addressed.

Any details here you care to share?
I see a wheels up launch so there's something going on that's peaked my 3rd gen Camaro interest!

For a street application I prefer to install an Annular Booster. How would that make it lacking in a drag strip application? I only ask because my 25 year original Barry Grant 750 VS came equipped with annular boosters. It's proven to be an excellent street carburetor however it proved to be slow w...

Update: Preliminary carb tuning has delivered a new best 1.43 60 foot, in 1700 DA on a fair track. This was accomplished with a 750 DP in place of the original 850 DP, the 750 did lose MPH over the 850, but the 750 ran harder to the 330 foot slowing down from 330 foot on. So working with the 850 to...