jacksojf

My 997.1 GT3 will go in for coolant pipe replacement and welding soon, what else should I consider "while we're in there"? I'll have all the coolant hoses replaced as well. Do I have the plastic impeller water pump? If so, that will be replaced for sure. How about coolant expansion tank and air oil separator? Obviously we'll look at the clutch, altho' I don't expect any real issue there. Don't think the RS flywheel nor exhaust mods are worth it for me. I autocross and do DEs....will replace coolant pipes w/ Sharkworks or BBI products;any other issues to consider? 35k miles on the car.
Thanks,
Jeff

orthofrancis

Rear main seal. I just had mine out and pinned and also replaced the water pump as it was rattling.

Is you LSD still good? The factory ones apparently don't last for more than a few high speed track days.

There are some good threads on how to check it here somewhere.

jacksojf

Thanks for the LSD reminder. So zeroed in on coolant issues I sorta tuned that out. Willl have the RMS looked at for sure.
Jeff

r6elmo

i'd change the drive belt, coils/spark plugs if due, air filter, fuel filter.
LSD you could do there while motor is out, but not completely needed

jacksojf

Appreciate the feedback; had the 40K service last year, plugs, coil packs, etc so that's done. Wish the coolant pipes weren't an issue, but I've pressed my luck too far as it is. LSD seems OK, but will have it checked. Still not sure whether my water pump has the plastic impellers, but at 10 years might as well replace it along with the hoses and coolant.

Jeff

bobaines

If you are considering any performance upgrades I would recommend you look into the ring & pinion from the .2 RS.
I did it a few years ago and I love it. Hard to say it wakes up a car as good as a GT3 but it does make it better.

sin911

If you want to spend some extra cash the 4.0 LWFW really does a trick on the throttle response