Break-in Secrets
 

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

For reference the above thread has great information.

We have done it this way for 30+ years. I grew up with a guy that for most of his professional career set up motorcycles for American Honda that the magazines would get for testing. He basically blue-printed the bike from axle to axle. His method for break in was warm it and hammer it. A slow break in meant a slow motor.

Lindy

Lindy,

Thanks, I did it right , per your recomendation.

Shane

I've always liked that advice.

Though I admit partly because it aligns with my inability to do any kind of slow break-in. I have a new motor, it is for the race car, and I can't afford to do anything other than hammer it pretty much from the get-go. Run it enough to drive into the trailer, check for leaks, and out and over to the grid.

Wishful thinking can be dangerous, but so far this hasn't bitten me in the posterior. Leakdowns are uniformly good.

Hello Shane.

Thank you and all the others for sharing so much knowledge!

Two years on, could you share how the engine has "aged", specifically oil consumption, etc.
Also, in hindsight, would you have done anything differently?

Thanks in advance,
Ben.

I just changed the oil from Amsoil 10-40, to Amsoil 20-50 I have only added a quart. This engine simply does not burn oil.

I tinker with it frequently, but I do not think I would do anything differently, the cams are a bit lumpy at lower RPMs, and the dual out was a bit loud until I put baffles in the tips.

But, no I wouldn't have done anything different , I like the simplicity and longevity of lower compression, single plug, carbs and distributor.

Little things make a huge difference and when the exhaust, intake, engine is finely tuned you can really get a lot of satisfaction. The engine spins up to stock redline 7K and beyond without worry.

Hope this helps, did you see my video?

please post (again) video of your car & engine set up please...

Thanks for the additional insight Shane.
Yes, I did see the video taken along some gorgeous road (in Hawaii I presume?).

The Video as requested
 

The only other thing I have done since posting this video is I locked out the vacuum plate on the distributor and I have added baffles to the tail pipe.

http://forums.pelicanparts.com/porsche-911-technical-forum/662781-diy-distributor-vacuum-pod-delete-vacuum-lockout.html

http://forums.pelicanparts.com/porsche-911-technical-forum/596812-sound-video-preview-m-k-rarlyl8-headers.html

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Hello Tom, I’m doing some very fine tuning, can you share the details of the modified F11’s? Where did you drill the extra hole and what size?

SmileWavy

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Nice… running at redline… love it…!’
How many miles have you driven the car since 2012 when you mostly? finished your work…?
thx for posting

I didn’t drive the car much until recently, I think total mileage on the motor is 15,000.

Yes, I’m finished…for now. The motor and the car are incredible.

Completely normal...

Yes! and looking at your list of goodies I understand why you get it. I love the quote!

1973 911T with SC CIS stroked to 3.2, 10:1 Mahle, M1 cams, RSR bushings, Koni Sports.
Cars are for driving. If you want art, get something you can hang on the wall!

I miss that sound.

Update - Broke a head stud
 

Dropped the motor this week for broken head stud and maybe a bump in compression.

Dilavar, why did I use them? Because I didn’t know better. Going to replace all 24 with steel.

Stud broke just 3/8” above the deck and I was able to get it out with vice grips. (Lucky)

Not changing anything else. The whole motor is strong, cams/carbs are spot on. I might experiment with a different muffler eventually.

http://forums.pelicanparts.com/uploa...1683684245.jpg
http://forums.pelicanparts.com/uploa...1683684245.jpg
http://forums.pelicanparts.com/uploa...1683684245.jpg
http://forums.pelicanparts.com/uploa...1683684245.jpg
http://forums.pelicanparts.com/uploa...1683684245.jpg

You got enough room to play soccer..

I do, but I prefer just to drink and do things.SmileWavy

Stage 1 cleaning is complete. The road grime is gone.

http://forums.pelicanparts.com/uploa...1683854795.jpg