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| Joined: | 10-31-2013 |
| Location: | Denmark |
| Posts: | 67 |
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This summer I bought my first JH. it is a black 1974 model with a 2.0 lotus 907.
just a few weeks ago I found a 2,2 ptr 907 lotus engine, I thought what the h… and bought it.
My question is now which ways to go.
The original engine has strombergs ( it´s a us model) and it starts , idles , and runs very clean without any hasitation. ( It works well). only it does not feel like 140 BHP.
Is there anything i can do to this engine in terms of ignition setting / valve timing that would improve it?
I guess I will use this winter to build the 2.2 engine, bottom end is done.
cylinderhead is done , at least valve springs looks brand new.
How can I tell which cams are in there, they have no numbers stamped.
The timing wheels have 6 holes each and the only marking is "inl end EXH" on both sides of them. And there is a dot in the casting but only one one side of the cam wheel.
What about carbs. It came with a set of strombergs, 2 sets of 40 mm webers and one set of 40 mm Dellortoes( they all need to be refurbished.
Would 40 mm carbs be enough or should i go for 45mm.
Which cams should I put in there , and should I do something about the ignition.
I measured the stroke to 76mm and the comp ratio to 9,35.
I would like to end up with a drivable engine with tourqe and some power:-)
I know this is a lot of questions, but I hope some of you can point me in the right direction .
BR
Kim