Search found 861 matches

by Steve Simmons
Fri Dec 06, 2019 9:11 am
Forum: TABC Chat
Topic: Tire circumference with the illusion of speed and handling
Replies: 12
Views: 222

Re: Tire circumference with the illusion of speed and handling

It's also worth noting that a large tire will introduce a lot of rotating mass as well as unsprung weight. From a performance standpoint, it's better to stay with a lighter tire and change the rear end gearing.
by Steve Simmons
Thu Dec 05, 2019 7:39 pm
Forum: TABC Chat
Topic: Tire circumference with the illusion of speed and handling
Replies: 12
Views: 222

Re: Tire circumference with the illusion of speed and handling

It's a pretty big tire for a 2.5" rim. Model A's don't usually go around corners very fast, but TCs do, and you may find that such a large tire will introduce a lot of sidewall flex. This can make the car less stable in the corners as well as being more likely to wander at highway speeds. Higher inf...
by Steve Simmons
Thu Dec 05, 2019 10:04 am
Forum: TABC Chat
Topic: TC front brake cylinders
Replies: 4
Views: 83

Re: TC front brake cylinders

I hope you start a thread about your car. It sounds fascinating.
by Steve Simmons
Thu Dec 05, 2019 8:47 am
Forum: TABC Chat
Topic: TC front brake cylinders
Replies: 4
Views: 83

Re: TC front brake cylinders

I'm not aware of any aluminum cylinders but I've had mine sleeved with brass in the past. Works a treat. Many miles later they are still in perfect condition.
by Steve Simmons
Sun Dec 01, 2019 11:57 am
Forum: TABC Chat
Topic: TD oil pump to TC conversation
Replies: 6
Views: 109

Re: TD oil pump to TC conversation

My apologies, I misunderstood. I thought you wanted to use the later horizontal pump with integral filter. I've never done what you're talking about.
by Steve Simmons
Sun Dec 01, 2019 11:27 am
Forum: TABC Chat
Topic: Tire circumference with the illusion of speed and handling
Replies: 12
Views: 222

Re: Tire circumference with the illusion of speed and handling

You also have to account for "squish". The most accurate way to measure is to mark the tire and roll the car exactly one revolution, then measure the distance it went. This is how we used to calibrate cycling computers to be accurate to 1/10 MPH or better. Simply entering the tire circumference with...
by Steve Simmons
Sun Dec 01, 2019 11:24 am
Forum: TABC Chat
Topic: TC9849 EXU Restoration
Replies: 10
Views: 260

Re: TC9849 EXU Restoration

The tub is a mixed bag. The upper wood is pretty good but the lower wood is rotten. The car came with all the repair pieces necessary to fix the tub but I'll be honest, a woodworker I am not. The chassis is a ton of fun for me but everything that sits on top is not something I'm looking forward to. ...
by Steve Simmons
Sun Dec 01, 2019 9:20 am
Forum: TABC Chat
Topic: TD oil pump to TC conversation
Replies: 6
Views: 109

Re: TD oil pump to TC conversation

I just asked a similar question recently. The responses are here:
viewtopic.php?f=2&t=1124
by Steve Simmons
Sat Nov 30, 2019 5:40 pm
Forum: TABC Chat
Topic: Tire circumference with the illusion of speed and handling
Replies: 12
Views: 222

Re: Tire circumference with the illusion of speed and handling

I regularly tour with a friend who has fitted 5" tires. I run the original 4.5" Dunlops. The difference in our RPM at 60 MPH about 3-400 as I recall. When I'm at 4K he's at about 3.6K if memory serves. You could change your rear end gearing for a lot less than a new gearbox. Both 4.875 and 4.625 are...
by Steve Simmons
Sat Nov 30, 2019 3:30 pm
Forum: TABC Chat
Topic: TC9849 EXU Restoration
Replies: 10
Views: 260

Re: TC9849 EXU Restoration

Duncan, I wonder if these two cars were on the line at the same time. When finished, we'll have to meet somewhere in the middle and line them up while leaving 16 car lengths between them. :) If yours was before this one instead of after, we could line it up now, this one entering the line as a frame...
by Steve Simmons
Sat Nov 30, 2019 3:05 pm
Forum: TABC Chat
Topic: Brake light switch options?
Replies: 22
Views: 3062

Re: Brake light switch options?

All switches made today are silicon compatible. Harley probably labels theirs as such so that Harley owners will only buy from them.

I forgot to mention that the last switch I put in my daily driver BGT is a Duralast from Auto Zone. It has been on for a lot of miles now and still works as new.
by Steve Simmons
Sat Nov 30, 2019 1:33 pm
Forum: TABC Chat
Topic: Resources?
Replies: 1
Views: 52

Re: Resources?

Yes sir, the new forum software kind of wiped out the old menu so that's on the "to do" list. Also the entire resources section needs to be re-organized. There is still an "additional files" area that should be merged into it.
by Steve Simmons
Sat Nov 30, 2019 10:36 am
Forum: TABC Chat
Topic: Brake light switch options?
Replies: 22
Views: 3062

Re: Brake light switch options?

What I've noticed is that the modern Lucas replacements don't last no matter what type of fluid. The contacts break down and it requires more and more foot pressure to engage. The only cure for that I've found is either a relay or LED lamps as Duncan noted. My TC has LED rear lamps and has been runn...
by Steve Simmons
Fri Nov 29, 2019 9:26 am
Forum: TABC Chat
Topic: Brake light switch options?
Replies: 22
Views: 3062

Re: Brake light switch options?

The type of fluid would have no effect on the switch, since the fluid never touches it. If the car has been converted to a hydraulic switch, it should still have no effect since they are compatible with all common fluids. I have hydraulic switches on three cars (MGA, MGB, MGC) all with silicon fluid...
by Steve Simmons
Wed Nov 27, 2019 11:38 am
Forum: TABC Chat
Topic: MGTF performance issue
Replies: 5
Views: 156

Re: MGTF performance issue

Definitely sounds like a fuel issue to me. Have you checked the flow of the pump? If I have my facts straight, it should deliver 1.3 US pints per minute and hold a pressure of 1.5 psi. I suspect something else is going on though. If you have an A/F meter, see if the AF ratio is staying within an acc...
by Steve Simmons
Wed Nov 27, 2019 11:28 am
Forum: TABC Chat
Topic: TC9849 EXU Restoration
Replies: 10
Views: 260

Re: TC9849 EXU Restoration

I started on the front end. After sand blasting the axle I had a bit of a surprise. A chunk of plastic-like filler popped out of one of the ends, and a metal-like filler has been applied all over the axle. It's in more places than the photos show, including along the bottom of the main upper ribs. I...
by Steve Simmons
Tue Nov 26, 2019 11:13 pm
Forum: TABC Chat
Topic: TC9849 EXU Restoration
Replies: 10
Views: 260

TC9849 EXU Restoration

The newest addition to my list of projects is TC9849 EXU. It hasn't seen the road in 40-50 years, and came to me disassembled down to the smallest nuts and bolts. The previous owner bought it this way 40 years ago. I plan to contact the owner before him and see what history I can find. In all those ...
by Steve Simmons
Tue Nov 26, 2019 10:46 pm
Forum: TABC Chat
Topic: New springs alter TC rear axle location.
Replies: 17
Views: 187

Re: New springs alter TC rear axle location.

I would endorse most of the modifications you're doing. I've done several of them myself. But the thought of drilling holes in an original piece of metal that will confuse the next owner bothers me, so I do personally draw the line there. I doubt TC1030 is any worse than the new build I started last...
by Steve Simmons
Tue Nov 26, 2019 3:21 pm
Forum: TABC Chat
Topic: New springs alter TC rear axle location.
Replies: 17
Views: 187

Re: New springs alter TC rear axle location.

Because I don't like the idea of drilling holes in a 70 year old car to account for incorrect reproduction parts. I like to think of myself as a caretaker of a piece of history, so I want to respect that history and not modify it needlessly. Not that my car is bone stock or anything, but I draw the ...
by Steve Simmons
Tue Nov 26, 2019 3:03 pm
Forum: TABC Chat
Topic: New springs alter TC rear axle location.
Replies: 17
Views: 187

Re: New springs alter TC rear axle location.

Personally I would be more inclined to modify the spring or replace it with a correct one than to drill permanent holes in the axle support.