• 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

Carb Question

Share this page

I believe it was a single Stromberg. I would stick with the Webber, or consider going to a twin SU set up ( thats what i ended up with ) Much better performance and looks better too!
 
Yes, it was a single and the car was equipped with a small catalytic converter.
 
Depends on the market. US Federal and California cars had a single Stromberg 150. But a twin-SU configuration was also used for other markets.
 
Certainly all Spitfires were fitted with twin carbs over here. I have heard that the Waxstat is more trouble than it is worth and personally I would just keep things simple. I am sure you could pick up a pair of the correct SUs through a supplier in the UK.
 
Sorry, you guys. Beginning in 1975, with the 1500 engine, all 50 states had the single carb setup along with the cat.
Applied to both the Spitfire and Midget.
 
[ QUOTE ]
What was the original carb set-up on 1500cc spitfire engine? Considering losing the weber and going original.

[/ QUOTE ]
Bus what are you trying to gain by this? if it is because of the pressure build up in the crank, you will not solve it this way. If it is for performance that is a diffent issue, but in that case, I think you should solve the basic issue of the pressure first.
 
The first priority is the oil pressure issue - the plan first is to try the drain method as suggested, then to mechanic if needed. The carb is a performance upgrade I'm considering for Spring as my new garage is not heated - I'm using the cold weather to accumulate as much knowledge from fellow forum members as possible. My prevoius experience working on cars has been a 55 Belair, 57 Nomad, and several Mustangs but that was 25-35 years ago so bear with me - alot of this stuff is new to me.
 
Bud
Are you considering a performance upgrade because the car doesn't seem to put out enough power?
If so, and given the amount of gas in the block, I think you should have a blow down test run on the engine. Basicaly the mechanic will hook the each cylinder up to a compressor and see if (or rather how long) is take for the air to escape. It is also possible to narrow down where there air is leaking from. Any good mechanic should have the equipment. Lets just hope that your engine is in better shape than mine was /ubbthreads/images/graemlins/mad.gif
Yisrael
 
Yisrael - my days of going 120 mph are over (especially in something the size of a Midget). Right after the holidays the car goes to the mechanic for an engine check over as I have spent to much on parts for both cars recently. The carb question is just something I'm mulling over as both types of carbs (weber & SU) have their pros and cons. Your comments and suggestions are appreciated as I'm learning about the triumph engine.
 
For whatever it's worth, all "Federal" Spitfires from the 1970 model on had a single Stromberg CD150 carburetor. As for catalytic converters, I don't believe they came along until 1977 or so, although it might have been earlier on California cars?

Anyway, I'm confused by the "oil pressure issue"; unless there's a post that I'm missing, I don't see any description of this problem. Bud, help me out here! /ubbthreads/images/graemlins/confused.gif
 
I've had 1973, 1974, and 1978 in Canada, which usually follows the rest of the states - all with single Strombergs.


Adam H.
____________________________________________________________
1972 Triumph Spitfire.
 
[ QUOTE ]
For whatever it's worth, all "Federal" Spitfires from the 1970 model on had a single Stromberg CD150 carburetor. As for catalytic converters, I don't believe they came along until 1977 or so, although it might have been earlier on California cars?

[/ QUOTE ]

1975 was the first year for cats and was required for all cars in the US, both Federal and California.
 
[ QUOTE ]
Anyway, I'm confused by the "oil pressure issue"....

[/ QUOTE ]OK, now I understand. It's actually a crankcase pressure issue. Happens a lot when well-meaning owners "gut" the emissions systems but don't take into account that all that crankcase pressure needs to go SOMEWHERE!
 
Back
Top