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TVR 2500M Triple Weber 40 DCOEs

MatthewsTVR

Freshman Member
Offline
I have a question for the TVR/Triumph guys out there. I own a 1974 TVR 2500m and it has three weber 40 DCOE carburetors on it. These carbs look great, but the problem is that there is a stumble in the acceleration of the car. I have to take off very slow until the RPMs are higher in range. It is sort of manageable if I toggle the choke while driving...It definatly feels like a lean out situation (not enough gas or too much air). The problem never really goes away though.

I have made sure that all of the jets in the carbs are clean and I recently put a fuel regulator on the car which helped a little.

Has anyone else experienced this problem? I need help with this aggrevating problem, I can't find the solution!

Any help or suggestions would be great!

Thank You in Advance,

Matthew
 

ralph_s

Jedi Trainee
Offline
Can't answer your question, but am envious of the triple webers!!
Two years ago, attended Jonh Twist's MGengineering 3 day seminar and spent some time w/ Carl Heideman @ Eclectic Motor works. They've done several triple carb convesions and I'm sure they can help w/ your problem. I'd recommend you email Eclectic Motor Works. They are really good people.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
They'll ask what comes after the "40 DCOE" first, then you will learn about "progression ports" under the brass caps just outboard of the idle screws.
 
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