Elliotw44

When I picked up my RS it has only 67 Range 1s. But I know that it was tracked frequently. overrevs != track time. It will only tell you if the engine has been in the given ranges and when it was. Doug actually has a great video about this.

fayraree

yes I watched his video. I guess people knew what they were doing so didn’t money shift while tracking. I guess based on the normal distribution curve, one might expect people to make mistakes but that’s great if there aren’t any.

horror stories like this keep me up at night:

https://www.pistonheads.com/gassing/...=230&t=1751835

Bxstr

Nothing wrong with getting it checked. Also, wouldn't call you ignorant at all for not knowing that you don't need one on the Mezger. Even on the 9A1 DFI engine it's less common than on the M96/M97 motors, but still is a good idea to get done like you did. But I'd assume everything would come back clean. Luckily that car already has lines pinned. Plugs and coils are a great idea to do. As mentioned, over revs and track time definitely are independent of each other. Over revs mean someone shifted early on a GT3. Range 1 is 9k. Redline is 8400. Plenty of heavily tracked 997 GT3's with clean DME's. Plenty that haven't been on track where someone shifted early. Enjoy the car.

my first 911

I bought my 08 GT3 from Doug 1.5 years ago with about 35,000 miles on it. I put 5,500 miles on it so far and that's with only having 6 months a year of acceptable weather. Your mileage is a perfect! Enjoy it in good health!

Robocop305

Well, Hartech which is a highly respected engine builder said in that post that those are polishing marks and not bore scoring. He mentioned that he has never seen a Mezger GT3 or Turbo engine with bore scoring. Nothing to worry about here.

lamacan

i spend a lot of time in the UK but mainly live in the US. and the funny thing is, a lot of the respected UK shops don't really insist on preventative repairs for a lot of the "problems" we worry about in the US with the same intensity. yes, they acknowledge they exist and happen, but they don't really catastrophize things in the same way. i think a lot of the US shops invent solutions to rare problems so they can sell things.

fayraree

Thought I’d ask this group who have bought GT3s recently. What’s a reasonable price for a compression/leak down test?

I got quoted $1,300-$1,400 for a compression/leak down test by switchcars (independent PPI shop didn’t have availability to do it) which includes new plugs and coils. Is that reasonable? I thought the test was going to be around $250, but no idea what it entails.

cbracerx

Test requires removing the heat shields, coils and spark plugs. Then each cylinder is compression tested with a gauge inserted into the spark plug opening and the engine is turned over with the starter to “pump up” the compression to the max value - one at a time for each cylinder.

Leakdown requires a hose attached to each cylinder, the engine rotated by hand to TDC for that cylinder and then locked in place, The cylinder is pressurized and the % leakdown read on the gauge. If significant, the tech listens for the source of the leak (worn/broken rings or bent valve). It’s time consuming,

I don’t think this estimate is out of line.

fayraree

understood, did some more homework and found it should be around $700-800 just for the labor. $250 plugs/coils kit from FCP Euro. So maybe just $300 off which is additional profit on parts and labor. Thank you!!!

Bxstr

You also should find out if they’re using genuine plugs and coils or OEM (beru coils for instance). There could be the price difference.

zdet

Agreed. Genuine parts (spark plugs and coils) online are over $650. In my experience, Doug is more than fair, including when it comes to shop time and parts.

fayraree

I checked and unfortunately they’re using the same parts as the FCP Euro package but just adding $100!

RAudi Driver

The leakdown test should cost way more than the compression test. A compression test will take a fraction of the time a leakdown test will and it's easier to do.

This subject warranted a new thread.

zdet

But aren't they also installing them? It's $100 that improves the car on a ~$150k deal....

RAudi Driver

The shop should not charge an install fee for those new parts. It's just a reassembly of the parts where that price is already baked into compression/leak down test price.

And here we go. Oh well, probably a good thing that this for sale thread gets derailed.