Don Terrill’s Speed-Talk

dfarr67 wrote: ↑Wed Feb 08, 2023 8:58 am

digger wrote: ↑Wed Feb 08, 2023 5:22 am IMO You dont need a fancy torque wrench for head bolts/ studs

Agreed- but I have to do better than +-10lbs.

Unless you get the crappiest PRC one then you’ll be good

IMO You dont need a fancy torque wrench for head bolts/ studs

composite gasket with stud torqued sub yield always retorque

it will depend what you are trying to achieve

swirl

Higher octane rating gasoline then the motor needs usually results in a slight drop of horsepower. False. The octane has no impact on power aside from allowing more power if the engine was octane limited previously. Take a 10.5:1 compression 383ci SBC making 450-500 hp NA on premium pump gas. Swap ...

Looks half as good as a conventional x pipe

So the crappier the chamber the less it matters?

Heads started at 65cc after chamber work and a lite mill when they were new. Compression was 11.5:1. After, I milled them .010. the chambers ended up around 63. I "estimated" that based on .006/cc. No point in wasting time cc'ing them again to know if it was +/- .2 cc different. It's just not that ...

Essentially, yes, that's what I am saying. I've done this scenario numerous times over the year. Build engine, max compression pump gas for example. Engine gets run for years. Comes back for freshen up. Hone, re ring, bearings, etc. Say for example, a 406. 11.5:1 with flat tops, and 64cc. Mill head...

One thing Comp has, is a serious advertising budget. In 2006, HOTROD magazine did a multi page article on my cam balancing system. Before it went to print, Someone high up at Comp Cams heard about it and called HOTROD's publisher. They threatened to pull their advertising, and it almost got the wri...

rfoll wrote: ↑Mon Jan 16, 2023 5:04 pm For the discussion at hand it's a matter of how much is enough. The original question was about retarding the cam 4 degrees. It took 3 days and 2 pages to get an answer.

What was the answer?

Debate all you want, I told you what to do. It'll work. I've done it 50 times since the mid 90's. But listen to guys with "opinions ". Good luck, hope it works out for you. 👍. Quench works the opposite of what everyone on here thinks. Making it "tighter" isn't better or more "efficient" because it ...

Every ARP rod bolt set I’ve seen includes the torque values to be used when a stretch gauge is not available. If this was not an acceptable method ARP would not include this. The ARP main stud and head studs commonly use a torque value, again if ARP felt that it was mandatory to use an angle tighten...

Bolt tensioning using torque is almost useless. Unless the components have been tested and verified regarding tensile,lubrication, and friction. Almost never possible with aftermarket components. Angle torque or stretch are the only methods that should be considered in critical areas such as an eng...