• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!

    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

Tr-Carb Conversion

Sorry Bill. Probably a poor choice on my part. Let's agree on collectable.

I used obsolete in the context of:

no longer in production = shrinking market = no incentive for manifold company to develop new products.
 
The nice part about RG's triple manifold though is the artwork like craftsmanship. They really are a thing of beauty. When I was assembling/rebuilding my TR6 and its engine, my manifold sat in the display case of the local LBC shop where I was working. It never failed to draw attention and I think I might have sold a few for RG just by displaying it.
 
["and tapered-head grade 8 metal lock nuts were my fix"]

Bill- Where??? can I purchase such???
 
OK gang. Final pictures posted. Tomorrow is another day for tweaking and tuning the timing. Carbs seem to be just right.

All of the story here:https://www.74tr6.com/triplecarbinstall.htm

tricarbconv 063 (Custom).jpg


tricarbconv 064 (Custom).jpg


tricarbconv 068 (Custom).jpg


And master technician, Erik of Her Majesty's Service.

tricarbconv 066 (Custom).jpg
 
Your car is TOO clean. You can eat off your engine. Lookin real good. Will be interested in your take on preformance vs. the old carbs.
 
DNK said:
["and tapered-head grade 8 metal lock nuts were my fix"]

Bill- Where??? can I purchase such???


Nut and bolt specialty store. Basically, they are a grade 8 all-metal locking nut that have the outer end slightly tapered. Makes for better clearance when that header pipe turns right in on the stud.
 
Paul's machine will be a good one for those wondering what a third carb will do on a mild engine. Myself included since I went from stock to gonzo in one fell swoop.
 
Well, I couldn't wait until tomorrow to play with the timing. My wife was out to dinner with her gal pals, so after a golf dinner tonight I decided to play with this a bit.

Unfortunately, my new Sears & Sawbuck timing light bit the dust, so it was back to basics. I knew where it was before and that I had a bucking and hesitation if I really lugged it down and tried to accelerate back up to speed.

By that, I mean that I will drive the car on a level road and let it go down to 1200 to 1300 RPM in 3rd gear or about 1000 in 2nd. At that point I attempt to gradually throttle back up to 40MPH. When I can do this without a skip or miss, for lack of a better word, I know that the car is running well and that's an ideal timing setting. For my car, it's anywhere from 12-16BTDC, depending on fuel quality. I think that I was at 13-14 and now I'm up to at least 16. I have no ping and the car pulls like a tractor, which is what the engine was designed to do.

Now for performance versus the twin carbs. I always ran very smoothly and accelerated very well. It now goes like a bat outta hale!!! I'm very happy with the conversion.

It was not cheap, nor is it for everyone, but I feel that I got my money's worth. Jeff Palya did a superb job on the carbs. They needed very little adjustment to set them up. I do not feel that he could do much better with the alignment issues unless he had my car there to set it up. Every car is different and he did just fine with the preliminary assembly.

Erik at HMS is one of the best techs that I have ever met. I would not hesitate to recommend his services to anyone and I wish him well as the new (full) owner of HMS. Many of the Cape Cod Club know of his quality work and honest dealings with his customers.
 
Mabbott,

I had these on when I had my twin carbs also. I just washed them and re-oiled them with K&N red filter oil. The chrome filter kits are made by K&N. Available at big 3.
 
Paul, when are ya gonna shave the head and add a cam???And aluminum flywheel. That's when it runs like that proverbial bat.
 
Quick questions, if I may, on the timing. Was that initial advance, on the dampener? Any vacuum, retard or advance? Any alteration to the advance curve? What compression are you running with what rocker arm ratio?
 
Brosky said:
Mabbott,

I had these on when I had my twin carbs also. I just washed them and re-oiled them with K&N red filter oil. The chrome filter kits are made by K&N. Available at big 3.


Thank you for the K&N info......
 
Mabbott,

I just noticed that you are new to the forum, so let me welcome you here.

I also notice that you are in MA. As you can see, I'm in RI.

Where are you located and do you belong to any of the NE clubs yet?
 
Bill, I plan on doing that as soon as I get the divorce papers all ready to be signed, because that's about where that idea would take me at this point in time.

Not that my wife gives me grief about the car. It's just that today, she said to me, in a kind of warm and fuzzy way, "we are going to actually drive the car this year, right dear?"

No more majors for a while.
 
Back
Top