This TR6 has come in for a Nissan Differential swap and Richard Good axles.

This car is so red it burns my retinas. The distributor has been to Advanced Distributors and the carbs were refurbished by Gary Martin, both prior to coming to us. It’s here for the final details to help those two (distributor and carbs) work perfectly together.

But seriously, it doesn’t have to be a TR6.  It could be any car.  I just have TR6 pictures with our Laser Alignment tool to show you.  I’d be glad to explain to you how it works if I had that ability.  Chip has that ability, so you should talk to him.  He really understands this alignment stuff.  You can blindfold him and push him out the garage door and he will go in an absolute straight line… it’s amazing.

So, bring your sportscar to the car chiropractor of Richmond.  Just imagine it how it will drive after a few slight adjustments…

TR6 – all lined up.

Another TR6

Back on March 1, 2013, we introduced this Green TR6, and it’s time for an update.  This car is getting Toyota calipers to replace the stock front calipers, and new rotors as well.  New coolant hoses will go in, and tube shocks are replacing the original lever shocks.  The exhaust needs some repair, and the differential is leaking, which gives me a great opportunity to show the TR6 differential mounts that result in many inquiries  because of their propensity to crack. Alas, pictures seem to communicate the changes better than words, so peruse the pictures below for an idea on the progress.

New Sway Bar Links.

Here, I was trying to show all the differential oil that has leaked out and sprayed the underside of the car. The differential pinion seal is leaking in this car.

Photo of the four differential mounts while the differential is removed. The ones in the top portion of the photograph are towards the rear of the car. The lower ones are towards the front of the car. The front mount on the passenger’s side (the American passenger’s side, that is) of the car is generally the one that goes first. The cracks can be either visible on the bottom radiating out from the center or on top next to the body where they are hard to see. To be clear, these are not cracked… just showing what the mounts look like.

TR6 Half Shaft with Lever Shock Below

We are replacing the old lever shocks with tube shocks. This brace is part of that package. It’s not finished, as Chip will weld in another brace to guard against fore/aft stresses.

The car will get new coolant hoses and clamps.

We’re replacing the Triumph calipers with Toyota calipers.

Customer mentioned a rattle or sound from the exhaust. When Chip removed the exhaust, the tube on the left fell off.

The “stumble” previously mentioned (in the first post on this car) should respond to a distributor rebuild (by Advanced Distributors) and the carb work that Gary Martin is doing for us. Should any of these repairs or modifications spark a question, contact us and we’ll give you as much information as we can. Thanks for visiting.

A couple of months ago, I accusingly told Chip we needed to rename the place “Red TR4A Motorsports”. I guess now we should rename it “TR6 Motorsports”, because the shop and parking lot are full of ’em. These things come in cycles, I suppose.

This fine TR6 comes to us in a green color good for an extra 2 mph in top speed or 1 mpg in fuel mileage depending on your driving or drinking (separately) habits. Fine as it is, it occasionally needs attention. Here at UK Motorsports, we pay attention. According to the owner, the troubles are:
–stumbles a bit below 2000 rpms (ignition, carburetion, both?)
–check valve clearances, cylinder pressures, head torque
–oil and filter
–vibration in the dash

Chip will also give it the once over to check for other common TR6 maladies and make recommendations from there. This one is in very nice shape already… (see below)

Well Preserved TR6

If you’ve been keeping up with the incremental improvements to the TR6, the new cylinder head is on with everything else and it’s back under power.  Now, we have to reschedule an appointment with the dyno to see the improvement.

Chip has installed the new cylinder head on the TR6 in preparation for another dyno run.  He also painted it black to match the rest of the motor.  Once he gets the new numbers, we’ll report back.

As part of the TR6 tuning process, Chip has sent an old TR6 head out to be cut down slightly and flowed.  Once he swaps the head onto the motor, he can report the difference on the dyno between the old and new.  We’ll have the exact specs for the new head so everyone can evaluate it to see if it’s worth it for their particular situation.  Pics of the head as it came back from the machine shop.

The machine shop reported some nice improvement on the flow bench, so we’ll see what it gets us at the wheels.

Chip noticed some squeaking in the front end of the project TR6 and decided to replace some bushings in the front end with Richard Good Nylatron bushings.

Above are the offending squeakers.

This photo shows the new bushings install on the lower control arm.  Chip also inverted the control arm to lower the car a bit.  This car will also get Spax shocks on the front and new springs.  After all of that, we can get it off the rack and note any improvement.

Thought I’d introduce another tool Chip is using to tune the TR6.  It’s a software program that plots the Air/Fuel mixture ratio using a sensor mounted in the exhaust.  This little tool helps to see how close we are getting to complete combustion.  If anyone is wondering, we are currently a bit rich, so we can lean it out a bit.  Our formerly weak ignition (see the previous article discussing Distributor Phasing) needed more fuel, whereas the properly functioning ignition requires less.  We like efficiency.