Don Terrill’s Speed-Talk

Roots, Screw, or Centrifugal (Procharger, Vortech, ESS)? Roots style blowers like upstream fuel, like a plate under the hat. Screw blowers can also be run this way. Holley, Fueltech or Haltech systems can run a few injectors (or a whole set of '8) at a reduced fuel rate and let the ECM trim the fuel...

The bottom pic in your post shows the valve/shuttle pointing backwards as the pintle sticks out the end of the valve body. One cutaway cutaway diagram two more cutaway versions 62-67 Nova cutaway If you use google, insert "before:2023" and then type in your search, you can get a lot of ima...

BLSTIC wrote: ↑Sat Apr 20, 2024 12:07 am 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.

Here are the specs for E85 in the US. It's blended in the tanker at the fuel depot/terminal. YMMV.

Sound bouncing off the ground from single wall exhaust pipes back up into the floor, rear of cab, and front of box can also be excited by the reflected sound to cause "drone." Even large glass windshields can get excited by pressure pulsations (exhaust) or structural vibrations (uninsulate...

For the OP, here's a screenshot from an ET Predictor based on Pat Hale's Performance Racing Atmosphere calculations. (a modified version of SAE J1349) I believe Larry's program uses Pat's CF calculations. I also use some formulas off of epi-eng.com for water vapor calcs and such. The screenshot has ...

What was the original engine in the truck?
What’s the fuel pressure at full load at 5600?
A 1/4” fuel line doesn’t usually feed a V8 with a redline over 4500rpm.

Any opinions about how to best track the cooling system efficiency for the GSX-R750 engine? You need to know 3 fundamental quantities: A water pump map of flow vs RPM, (SAE-2004-32-0084 does have pump flow rate for a 600cc bike engine in an FSAE car, otherwise pull the pump off and drive it externa...

I don't think a gixxer 1000 is allowed in Extreme Kross Kart. The other two numbers for runs 128 and 130 are the 750.

It makes a different sounding 6hp mini-bike engine as seen in the video. Not a threat to modern engine design...

As long as you don't do silly things like clearance the rockers for valve retainer clearance you should be fine. I don't see that that block is main priority oiling. I'd install an oil pressure cut-off switch to minimize badness when a rocker lets go and the lifter leaves its hole. You're using rest...

A lot of drag cars, including my brother, use 16v batteries, whether AGM or LiFePo. AGMs in my experience, are not light, in fact they can be heavier than FLA batteries. Pick your poison in the link below.

https://www.summitracing.com/search/par ... volts/16-v

I wonder what's with the 1050 having the highest manifold Vac, implies it's the most restrictive. Something isn't right with the sensor. I'm not taking it at face value. The highest flowing showing the highest restriction and lowest cfm least restriction. Hopefully the tech will fix that too. Same ...

I believe he’s referring to the moment on the valve stem due to the valve head returning cocked. Anyways, the OP’s valve head is 1.84” and not 2.18” so there is that… Either way, the tensile or bending on the stem is going to be due to the impulse at impact, which is a function of the cam lobe and v...

Manley 2.35 stainless intakes in 440-1s modified to emulate 572-13s will last a bit over 1000 laps before the head of the valve cracks. This is with an Isky solid roller with .460/.450 cam lift using 1.7 rockers at 7-7200rpm and a World block at 572 cid. BTDT, didn't get the prize. For the OP, that'...

Ok, cool, so the rest of the story is that you input an incorrect shift setting with a new bullet.
Found your combo, nice set of parts.