Need advice: Stop with a big tune-up or do more?

[Track944s]

With a longtime '88 944S that will be a track car. I have replaced plugs, wires, oil cooler connections, belts , rollers, water pump, rubber hoses, low temp thermostat, cleaned and powder coated the valve cover and intake manifold, a camshaft , and that plastic chain guide. Down below we put in a Lindsey oil baffle and replaced all rod bearings and bolts. With 200,000 miles, I may need to go further into the engine so I'm looking for recommendations on what items would I be stupid not to replace?

With good compression and no smoke, should I replace valves, lifters, springs? Should I have the rings replaced and the cylinder walls honed? Should I replace the main or any other parts? Are there areas of the trany that need replacing at this point (though no known issues) with a clutch having 50,000 miles on it..replace?

Thanks for for your input and feedback and I'll let everybody know how it turns out.

[9FF]

With good compression and no smoke, should I replace valves, lifters, springs?*Should I have the rings replaced and the cylinder walls honed?

-With good compression/leak-down test ok, leave them alone.

Should I replace the main or any other parts?

-Mains are worth doing while your in there.

Are there areas of the trany that need replacing at this point (though no known issues) with a clutch having 50,000 miles on it..replace?

-No visible leaks or issues in tranny, drain and fill with Redline or Swepco.

-You can check the wear of the clutch using the inspection hole. If it's in spec leave it alone.

[Track944s]

Thanks for the feedback, and the reminder about Redline/Swepco fluids. Do you have a preference (or is there a 100 post thread that talks through it)? Also, I have not taken the engine out to do bearing rods and oil pan baffle. Can the main be replaced without taking the engine out, or is this torture waiting to happen?

[9FF]

It seems that if you mention the word "oil" in any car forum your post will automatically change topic and exceed 100 posts. IMO you cannot go wrong with Redline or Swepco in our transmissions. I use Redline MT90, always have and am very happy with how it performs.

As to chaining the mains with the engine in the car, I really don't know. But then I take mine out to do the sump and rod bearings as I try to avoid that sump gasket fiasco working under the car.

[Track944s]

Thanks for all the feedback. Based on the feedback and our tolerance for the amount of work at this round, we are going to do some head work then put all back together. One follow-on question: on the S models, what do the camshafts look like at TDC? The factory manual seems opposite the pics on this BBS. I am good with the crank indicator, but knowing which cylinder's lobes are "up" at TCD is what I am confused by.
The factory seems to indicate that #4 lobes are facing up while the BBS pics say #1 lobes are facing up....Any help would be appreciated.