History of a Lola T492 Sports 2000 chassis?

[911thillclimber]

I have an army of techies thinking this one through now.

The engine is not right still.
Had to cancell the car for Shelsley, but ran the 911 (ironically with the same type of engine as the Lola).

The carbs are now out of the question zone. My old webers are on another 911 engine and run PERFECTLY!

The one or two cylinders on the one side of the engine in trouble are always the errant ones, the other 4 are perfect and always are.

Narrows it to 2 cylinders.

Screwing the idle mixture jets in fully/dropping out does not change the engine note. Do this on the others and the engine speed drops dramatically which proves that those two are not being sparked or not getting fuel. (or both)

The old carbs are now proven to work on another 911 engine, so they were not the cause of this problem. Reasonable to presume the near new ones are ok too.

This leads to the ignition side or the state of the cylinders themselves.

The exhaust valves are correctly clear at TDC
The engine pulls strong at 6000 rpm so presumably all 6 are alive at high revs.

I hope this is just a lead/plug top cracked or similar.

Now have some extra tools in the form of lead checkers and Colour Tune (remember them?)

Will have a good go at:

Fuel delivery overall
Leads/plugs
Mixtures

I can't get to a rolling road for 2 weeks, hence the colour tune....