Engine timing

mork

Member +
I've recently replaced the cambelt and timed it all to tdc, but was wondering if it's correct to have it at 10deg before tdc when running? I have a strobe light, but haven't ran the car yet cos I'm waiting for the cam cover to come back from the polishers. Cheers guys.
 

Iain@CRD

Lifer
Crankshaft pulley set to 0, 4E on your timing belt pulley point up, Rotar arm pointing to 1 and marks on the exhaust and inlet cam setup as long as you tensioned the cams, i.e a 12mm iirc bolt through the inlet service hole.

When the engines running you time it to 10 btdc.
 

dac69er

Super Moderator
cam timing you set it to 0 degrees. the ignition timing you set to 10 degrees while running and at the correct rpm.
 

xtech

Fresh Recruit
guys...........i got a 5E high compression motor...stock pistons.
Running TD04H stock injectors with AEM FIC

so what i want to know is.....do i set base timing at stock 10 or drop it to around 15 degrees what you think?
 

ramses974

Member +
guys...........i got a 5E high compression motor...stock pistons.
Running TD04H stock injectors with AEM FIC

so what i want to know is.....do i set base timing at stock 10 or drop it to around 15 degrees what you think?

i prefer running at 10 deg stock ... meanwhile some people would add some degre to perform the car ...
Good to see another high compression guy, how much boost do you run ?
 

xtech

Fresh Recruit
Had made adjustments to the wastegate to get it pushing 11psi at 3k before manifold leaks brought it back down to 7psi an no boost till 4k.
 

dark_knight

Member +
ideal timing for the best power & mpg combination

i'm currently running 15.1 degrees on a not-so-stock setup; 4e-fte motor with a ct9b @ 0.75bar, fmic, relocated intake, stock exhaust mani feeding a high-flow 2.5" kakimoto exhaust system. at the time of getting my ignition timing, i had ~95 deg C coolant temp with the engine idling at 825rpm.
 
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