I just read in another post to ignore the factory recommended break-in period for GT3RS or GT3. What is the concensus among other GT3 owners, did you exceed the factory recommended break-in of 2,000 miles at under 4,200 RPM's or follow the owner's manual. Those who drove your cars hard immediately were there any issues or do you believe it improved your car's performance. I have about 300 miles on my car and have stayed with the limits outlined in the owners manual. Thanks for any responses and Merry Christmas.

 

That must be tough to follow for such a long mileage period, my M5 was only 1,200 & you could take it to 6,000.

 

I always thought that all 911's engines were dyno'ed after building and ran for 30 minutes whereby the maximum rpm were checked before putting into a car and sent to the buyer. So I'd think that the more important way to drive was to rev the engine up and down the rev limit instead of taking it at low rpm for extended type of running like cruising at set speed down a highway. I think the new factory recommendation is to avoid guys redlining the engine upon startup before the oil gets to operating temp and blowing up a tight new engine.

 

Coincidence that another reply mentioned an M5 because I to have an M5 and I babied my motor as recommended. I now now and been told you got to let her rip and loosen that motor up. My car has dyno'ed consistently lower than others.
My GT3 I let it rip from the beginning. I did not do anything stupid but I sure rev'ed and shifted at 7000 to 7500 rpm. The car has dyno'ed strong for stock (363 rwhp) and after FVD headers, 384 rwhp.
These cars are meant to be run hard. I know of individuals who have tracked the GT3 with only 200miles.
A little example, you build a race motor and it goes out and you run it ***** out. Maybe not a valid consideration but close enough.
Loosen that baby up!

GT3Ranger

 

I was on the track at 105 on my odometer. Car runs strong. Just vary the rpms.

 

I bought mine to be driven hard. I didn't do anything "crazy" but I also just couldn't hold back. No problems to date... Enjoy it whatever you decide.

 

The tolerances of these motors are so close that you don't need or want to baby them.

Make SURE you're up to operating temps before hitting it hard and change the oil at about 500 miles.

tw

 

Also good advise... +1

 

I second running it hard right off the factory floor, (after the engine reaches regular operating temps.)

 

My GT3 went to Sebring, Homestead and Daytona while it still had paper plates and never missed a beat. I always bring the car to normal operating temperature, engine oil, transmission, running gear, brakes etc. before running it hard. I don’t have any proof, but I suspect that GT3Ranger is on the right track that these motors take a set and end up producing more power if you run them hard from the beginning. Proper maintenance is vital, I did my first oil change at 500 miles and will do my third oil change next week at under 3000 miles.
Manny

 

My UK dealer said no run in just be sensible and warm the engine up properly.

I took it steady (below 7k) for the first 200/300 miles and then the odd hard rev. Did a track day at 450 miles and now its done 800 miles.

Its running like a dream!!

Bob

 

I have had a 996 and 997 GT3. I did the break in on both as called for on long 100 mile+ back road drives with lots of shifts at 4200 RPM's. The 997 now has 12000+ miles and never burns a drop of oil just as the 996 never did. This includes track days.

 

Curious to know the dyno numbers of a car that has been driven hard with little or no miles compared to a car that went through the break in process (keep revs below 4000, etc)

 

My 996 GT3 was told to wait 1000 miles for break in, under 5000 rpm. Told the same for RS and followed that, as far as i know......my brother took it for about 20 minutes.

No problems ineither car...rs has about 1200, strong as an ox. 996 strong as well.

 

Well I did not know about the limitation until after the first week of owning the car so the first week was allot of 6 & 7000 rpm shifts. Always after a good warm up however. Tracked the car for the first time with 1200 miles on it. The motor is dyno'ed at the factory so you can't hurt it. I just think they are also considering other drive train components like the transmission so that parts get used to each other. I did have an RMS leak but can't say it had anything to do with that because others who i have talked to with RMS leak had followed the manual. Its a race car