I am changing out the timing chain and sprocket, thought it would be a good idea since I'm about to push more power through and the chain is about 60k miles.
Upon close inspection before removing, I noticed the cam was advanced by one gear tooth. 40 teeth / 360 means it was advanced 9 degrees.
This is why my car was such a torque beast and also seemed to flat line at 6000 rpm.
After some consideration, I question if I should leave it advanced with the turbo installed. Knowing the advanced exhaust would help spool up the turbo better. The advanced intake timing should also reduce wasted fuel during overlap, IIRC.
Question is if this is a good or bad idea. It would seem ideal to have lots of torque due to cam degree then have extra power in upper rpm from the turbo, best of both worlds. But I question how safe it may be, due to increases in compression and other possible unknowns I am over looking.
Any advice?
3100 v6 1996 GPse with stock camshaft
Upon close inspection before removing, I noticed the cam was advanced by one gear tooth. 40 teeth / 360 means it was advanced 9 degrees.
This is why my car was such a torque beast and also seemed to flat line at 6000 rpm.
After some consideration, I question if I should leave it advanced with the turbo installed. Knowing the advanced exhaust would help spool up the turbo better. The advanced intake timing should also reduce wasted fuel during overlap, IIRC.
Question is if this is a good or bad idea. It would seem ideal to have lots of torque due to cam degree then have extra power in upper rpm from the turbo, best of both worlds. But I question how safe it may be, due to increases in compression and other possible unknowns I am over looking.
Any advice?
3100 v6 1996 GPse with stock camshaft
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