Search found 428 matches

by HDBD
Sat Mar 30, 2024 4:20 pm
Forum: Engine Tech
Topic: Anyone know of a source of springs for distributors
Replies: 8
Views: 412

Re: Anyone know of a source of springs for distributors

Try ASE industries in Los Angeles.
Years ago the owner was rebuilding distributers and vacuum advance cans. Or Mr Gasket Part #
928G
by HDBD
Sat Feb 24, 2024 9:23 am
Forum: Engine Tech
Topic: Cam Spec.’s for GM’s new 1000 HP pump gas engine
Replies: 81
Views: 9535

Re: Cam Spec.’s for GM’s new 1000 HP pump gas engine

Curious what lifters they use?
by HDBD
Fri Feb 23, 2024 5:54 pm
Forum: Engine Tech
Topic: BB Chev in Motorhome, Exhaust smog plugs
Replies: 17
Views: 3822

Re: BB Chev in Motorhome, Exhaust smog plugs

I was a manufacturer of the tubes. The plugs must be 1/2" x 18 with the insert tubes left in and the plugs flat on the ends to seal against the flat flange of the tube inserts.
by HDBD
Sun Feb 18, 2024 11:06 am
Forum: Engine Tech
Topic: Valve Seat Materials
Replies: 5
Views: 739

Re: Valve Seat Materials

I don't have any personal experience with the seats other than their standard offerings. I did attend their webinar and they interested me. That said they are not that expensive and if changing seats anyway why not? Pulling the heat out of these builds is important. The application is similar to con...
by HDBD
Fri Jan 19, 2024 9:13 am
Forum: Engine Tech
Topic: the art of a valve job
Replies: 44
Views: 5928

Re: the art of a valve job

My day job is purchasing cnc machines and designing machine changes. I get it. A small Hermle would work, maybe a mazak or a much retrofatal. And 5 axis fadal. All verticals with a rotary trunion.
by HDBD
Wed Jan 17, 2024 3:13 pm
Forum: Engine Tech
Topic: the art of a valve job
Replies: 44
Views: 5928

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 HDBD
Sat Nov 11, 2023 8:10 pm
Forum: Engine Tech
Topic: 4150 zinc metering block repair.
Replies: 16
Views: 2249

Re: 4150 zinc metering block repair.

There is Zinc solder available if you look hard enough for the real OCD (me).
by HDBD
Mon Nov 06, 2023 2:49 pm
Forum: Engine Tech
Topic: Neway cutters and seat concentricity
Replies: 34
Views: 8151

Re: Neway cutters and seat concentricity

maybe a solid pilot might help ? https://goodson.com/collections/pilots anyone make a good carbide pilot for the neway cutters ? rgds sdo Yes, rottler But now you have a great pilot and a less than great cutter. With new guides and being saddled with Neways I would rough with stone first. I am not ...
by HDBD
Mon Oct 30, 2023 3:54 pm
Forum: Engine Tech
Topic: LS lifters
Replies: 11
Views: 1470

Re: LS lifters

My next logical question would ask what about morel and compcams lifters? Are they also considered in that same replacement bucket?
by HDBD
Sat Oct 28, 2023 1:18 pm
Forum: Engine Tech
Topic: LS lifters
Replies: 11
Views: 1470

Re: LS lifters

Are Topline Hylift equivalents contenders? I thought they were considered high quality?
by HDBD
Tue Sep 05, 2023 3:46 pm
Forum: Engine Tech
Topic: Engine choice for roadster
Replies: 55
Views: 10653

Re: Engine choice for roadster

How about a restored V12 Columbo Ferrari.
by HDBD
Wed Jul 19, 2023 4:10 pm
Forum: Engine Tech
Topic: Machine shops in the Pacific Northwest.
Replies: 18
Views: 1523

Re: Machine shops in the Pacific Northwest.

Mike, pm me. I know a former Boeing jig bore operator in Auburn that has a fully equipped shop and does some very high end work.
Don
by HDBD
Sat Jul 15, 2023 5:29 pm
Forum: Engine Tech
Topic: Giving a harley a decent exhaust?
Replies: 42
Views: 2928

Re: Giving a harley a decent exhaust?

There were a few cvo first in about 2000. Very nice bikes.
by HDBD
Wed Jul 12, 2023 11:00 am
Forum: Engine Tech
Topic: Giving a harley a decent exhaust?
Replies: 42
Views: 2928

Re: Giving a harley a decent exhaust?

Harley engines don't fire the cylinders in evenly spaced intervals. Due to the crankshaft design, it's not "front cylinder/rear cylinder/front cylinder/rear cylinder", it's more like "front cylinder/rear cylinder - pause - front cylinder/rear cylinder - pause". Does you software ...
by HDBD
Tue Jul 11, 2023 8:54 am
Forum: Engine Tech
Topic: Giving a harley a decent exhaust?
Replies: 42
Views: 2928

Re: Giving a harley a decent exhaust?

The thundermax ECU neuters the efi and changes alpha n, the stock ecu, to speed density which eliminates all load based algorithms. Now 3d becomes 2d just like a carbed voes bike. Throttle position vs rpm.