Don Terrill’s Speed-Talk

If it's the drone, look into a 1/4 wave resonator (google it)

Not that I would do this..........

Remove spark plug

Cylinder BDC

Fill with oil

Capture oil when moving cylinder to TDC

How much oil do you have?

I don't see why you couldn't combine the AR with a termination box by extending the pipe a ways into the termination box............

Has anybody ever made something like a throttle plate for the divider so you can adjust on the fly for different rpm?

Lower the tire pressure.

Is there enough clearance for a pin wrench?

Roundybout wrote: ↑Fri Nov 12, 2021 9:29 pm “Any safely built 4-cylinder car is welcome. No weight or rev limiting rule”

That’s interesting to me. No rev or weight limit?
ANY safely built 4-cylinder? Any other rules for the 4?

Use this then:

https://www.cnet.com/roadshow/news/merc ... er-416-hp/

Do you want the X-pipe designed so that the exhaust volume is split 50/50 at the merge?

What would happen if you go bigger on the chamber in the reversion muffler so that it also acts like a termination box?

(you need exhaust pipes and mufflers after it)

https://www.speedwaymotors.com/Dynatech-772-06322-Torque-Booster-3-0-X-3-0-Shell,252671.html Might try experimenting with these. Take the time to call Hendren racing and talk to them, the product I listed is designed by them and licensed for production to Dynatech. So they will talk to you. They we...

Have you attempted installation?

YES

We cannot accept used items................

Somebody here:

http://xlforum.net/forums/

probably knows what would work..........

Has the equivalent of the viscous fan coupler been used on the water pump pulley?

So how are the rods done on a 3 cylinder Harley?

A stock Harley uses knife and fork rods with roller bearings.

How do you do an additional rod?