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Reply to "Weber Carbs, timing advance"

@panteradoug posted:

You need to set it as Bosswrench suggested. On a dyno. That is to say, pull the engine out and put it on a chassis dyno.

???  How do you run an engine on a chassis dyno ???

But seriously; one of the issues Weber (or IR EFI) owners face is, you'll get the intake perfectly dialed in on the engine dyno, then you have to take apart the linkage and perhaps even remove the carbs/throttle bodies to lift the engine back into the car. I had bracket made that allows me to lift the engine, with ZF attached, back into the car without touching the throttle bodies or the linkage.

Also, when you have your engine tuned on an engine dyno, there's no reason why they can't use your headers. In fact, I had my engine dyno tuned with the full exhaust system for some of the "pulls", just to see how it affected things. Luckily, it didn't!

IMG_7515  

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Last edited by davidnunn
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