TR6 '76 TR6 stromberg mods

[wangdango]

Can someone tell me if it is possible to remove ALL the polution/smog/etc bits from the carbs/engine, and what sort of mods/changes need to be made with the needles, etc? For example, do you need the vac advance, etc.......Step by step advice would be fantastic!!
thanks
Ed

 

[tomshobby]

I removed everything. The only thing I did was to leave the top rear ports nearest to the air cleaner open.

But, because I made some engine mods I did have Jag needles installed.

BTW, the '76 does not come with a vac advance, it does have a vac retard though and I did leave it connected.

 

[jjw]

Hi,

As long as your area doesn't have required emissions tests or under-hood inspections, you can pull all the anti-polution bits off and the engine will run just fine ...maybe even better. No change required to needles.

I also believe '76 TR6s had an air pump (my '74 doesn't)... that and all its associated plumbing can come off without issue.

Vacuum advance/retard is there for both emissions and *street* driveability. IMHO its best to leave that alone unless you're doing other modifications.

Just a comment... if by doing this you're expecting some kind of improvement in power (and I've talked to many that think this way), think again. It would be nice if things were that simple, but to get even marginal increases in HP/torque you're looking at tweaking compression, valve timing/lift/duration, improved air flow, etc...

Enjoy...

 

[poolboy]

The only thing I did was to leave the top rear ports nearest to the air cleaner open.

That's worth repeating.
At idle they are vents (vacuum breakers, if you will) for the float chamber even if you remover the Anti Run-on Valve hoses.