Search found 3465 matches

by Dave Koehler
Thu Feb 29, 2024 5:06 pm
Forum: Engine Tech
Topic: best timing setup BBC
Replies: 12
Views: 696

Re: best timing setup BBC

Gear drive
by Dave Koehler
Fri Feb 23, 2024 8:05 pm
Forum: Engine Tech
Topic: Anyone familiar with D/C brand superchargers?
Replies: 4
Views: 460

Re: Anyone familiar with D/C brand superchargers?

DC stands for Dan Cap or Danekas (RIP) for short. I forget what the Cap stood for. Marc Danekas made a "Super blower" with really large diameter rotors for TF but it never caught on. I suspect the fuel systems of the era couldn't keep up. Lucille Lee (RIP) drove Marc's TR3 resin TF in the ...
by Dave Koehler
Fri Feb 16, 2024 2:15 pm
Forum: Engine Tech
Topic: Unusual piston tops
Replies: 11
Views: 956

Re: Unusual piston tops

dried out, flaked off
by Dave Koehler
Mon Feb 12, 2024 10:04 pm
Forum: Engine Tech
Topic: Racing parts sales scams
Replies: 12
Views: 1347

Re: Racing parts sales scams

by Dave Koehler
Mon Feb 12, 2024 9:30 pm
Forum: Engine Tech
Topic: One rod 10 grams heavier on big end
Replies: 22
Views: 1368

Re: One rod 10 grams heavier on big end

4" radius
6500 rpm
10 grams
= 428.1 lbs of force
by Dave Koehler
Wed Feb 07, 2024 7:31 pm
Forum: Engine Tech
Topic: Easiest Way To Pull Press-in Rocker Studs W/O Special Puller
Replies: 9
Views: 2710

Re: Easiest Way To Pull Press-in Rocker Studs W/O Special Puller

Agreed. Rocker balls and rod nuts for the budget win.
by Dave Koehler
Sat Feb 03, 2024 8:28 am
Forum: General Tech
Topic: Giga Press
Replies: 0
Views: 283

Giga Press

Can we get a smaller one for engine parts?

by Dave Koehler
Fri Jan 26, 2024 6:22 pm
Forum: Engine Tech
Topic: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding
Replies: 18
Views: 1049

Re: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding

Seems like I would never get a job done if I had to send most sets back.
"balanced sets" is a relative term and varies widely as to definition.
by Dave Koehler
Fri Jan 26, 2024 10:01 am
Forum: Engine Tech
Topic: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding
Replies: 18
Views: 1049

Re: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding

Agreed, they should be darn close to dead on, but what you may need to take out of the small end of a rod like that should be taken out of the piston in the pin area. Yes this will make them a matched pair . This would just confuse things as it is assumes the pistons are also dead on. It takes a lo...
by Dave Koehler
Fri Jan 26, 2024 9:59 am
Forum: Engine Tech
Topic: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding
Replies: 18
Views: 1049

Re: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding

I am looking at my Scat Pro Comp I-Beam Connecting Rods and hypothetically speaking, if they need to be balanced - weight removed off small and big ends, is it acceptable to grind the following areas: sum-180sbf6200i_rs_xl.jpg Small End - Red arrow - flat machined surface Big End - Orange Arrow - s...
by Dave Koehler
Thu Jan 25, 2024 1:18 pm
Forum: Engine Tech
Topic: the art of a valve job
Replies: 44
Views: 5745

Re: the art of a valve job

Another option is to buy a CNC mill. You can buy a very nice one for much less that $150K It has the advantage of being able to make a 3D shape rather than only a revolved shape. A CNC mill also has the advantage of versatility, if you design a part, it can be producing 24x7. Curious What machine w...
by Dave Koehler
Thu Jan 25, 2024 1:10 pm
Forum: Engine Tech
Topic: the art of a valve job
Replies: 44
Views: 5745

Re: the art of a valve job

I’m in the Philippines at moment setting up a machine for the scooter market. I was shocked how many scooters there are. Heading to Australia in February for the month. Small world. I do some balancing on those little, bitty 1 cyls that they drag race in the Philippines. I thought the first guy was...
by Dave Koehler
Thu Jan 25, 2024 12:57 pm
Forum: Engine Tech
Topic: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding
Replies: 18
Views: 1049

Re: Scat Pro Comp I-Beam Connecting Rods - Balancing/Grinding

On the big end, a little here and there off the edges will do the trick most of the time. Do the small end first. That often brings the big end closer to correct. If you aim for less than a gram take it to close to a gram, then work the big end.Then go back and final dial in the small end. On the bi...
by Dave Koehler
Thu Jan 25, 2024 12:41 pm
Forum: Shop Equipment - For Sale or Wanted
Topic: WTB - AERA Crankshaft Manual
Replies: 1
Views: 273

WTB - AERA Crankshaft Manual

Looking for a 2010 or newer book. What have you?
by Dave Koehler
Fri Jan 05, 2024 7:22 pm
Forum: General Tech
Topic: Machinists stampings on pad?
Replies: 4
Views: 21381

Re: Machinists stampings on pad?

Devil worship