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  #1  
Old 05-20-2005, 10:46 AM
Robert Mitchell Robert Mitchell is offline
 
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Location: Gaithersburg, MD
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Default Breaking and breaking in.

During the winter of 2002-2003 I had my 915 transmission rebuilt. The results were fantastic. I was able to shift into any gear at any time. In fact it was quite easy to shift from third to second just after redlining in third.

Little did I know this was a serious money $hift. It turns out the the previous engine builder used boat anchors and other salvaged parts to build my motor. This minor overrev (~8,000 RPM) caused the valves to float and bend and the left bank cam nut to come loose. Apparently the previous engine builder did not properly torque the cam nut.

Well, as it turns out there was another motor in my mechanic's shop that had been there two years awaiting a rebuild. It took him over a year to finish that motor and start on mine. Then mine took another year. Many have said that I may have too much patience

Today I got the call that my car is ready. As soon as it stops raining I will go get the car and begin the break in process. There are at least 182 pictures of the entire rebuilding process at the link below. Skip to about page 17-18 if you are only interested in the mostly assembled pictures.

http://www.tagmotorwerks.com/gallery/32911engine

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  #2  
Old 05-20-2005, 12:50 PM
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APKhaos APKhaos is offline
 
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Great news, Robert.
I was one of those who wondered when the red machine would be back on track, but figured you would be tired of people asking. My experience has been that when what should be a short project takes that long, the owner of the project is usually suffereing cruel and unusual punishment at the hands of the shop involved

The engine looks gorgeous, and I'm sure it sounds even better. Take it easy on the rod bearings for a good few sessions. Bring the max throttle opening and the max revs limit up slowly.
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  #3  
Old 05-20-2005, 01:14 PM
Robert Mitchell Robert Mitchell is offline
 
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Thanks for the kind words and the advice. I'm sure the max throttle will not be a problem but the max revs will be difficult.

After the first year, I must admit that I did get tired of people asking about when it would be ready.
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  #4  
Old 05-20-2005, 02:16 PM
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Trak Ratt Trak Ratt is offline
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Now see, there it is Imagine how the rest of us felt having to keep asking, over and over... Nice photos!
I just googled “patience” and got 10 pages of hits on you address (I think at least half were really your wife’s )!
But the years have pasted and while I remember you saying the car might be too much for you then, it ought to be a good fit now! And your SO gets her own car again
Good luck and welcome to the HP wars!
How about a quick run down on the motor and car
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"That's what's keeping me out of F1.... Too much mental maturity...." N0tt0n

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CHAOS, PANIC, AND DISORDER my work here is done...

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  #5  
Old 05-20-2005, 02:53 PM
Robert Mitchell Robert Mitchell is offline
 
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Actually, the SO is sharing this car Unfortunately for me, she had much less patience with the process.

Motor:

3.2 Liters
ITG Air Cleaners
TWM 46mm Throttle Bodies
31 lb/hr injectors
Ported heads
Crank plugs replaced with threaded plugs
New Webcams 906/Carrera 6 grind (you should hear it idle)
ARP Rod Bolts and cylinder studs
11 : 1 compression ratio
B & B Headers and muffler
Electromotive TEC 3r Engine Management System

The Car:

1974 911 no sunroof coupe
Fairly well stripped (no parking brake even) PO claims 2250lb with 1/2 tank of gas
Recaro SPG seats and 5 point harnesses
Fiberglass front and rear bumpers
Full roll cage welded into both the front and rear suspension mounts
24/31mm torsion bars F/R
22mm Weltmeister sway bars F/R
poly bushings everywhere
monoballs
turbo tie rods
custom valved Bilstein shocks
Big Reds in front and Carrera brakes in the rear
245/40-17 front, 275/40-17 rear on Fiske FM-10 (spare wheels Fiske FM-5 soon to have Toyo RA-1 mounted)
7:31 axle with stock first gear and close ratio gears 2-5 (2-3 raised from stock, 4-5 lowered so that each ratio covers about 30 mph)
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  #6  
Old 05-20-2005, 07:46 PM
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Trak Ratt Trak Ratt is offline
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Sweeeeet
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David

I hope to arrive to my death, late, in love, and a little drunk!

Just because I don't care doesn't mean I don't understand... Homer Simpson

"That's what's keeping me out of F1.... Too much mental maturity...." N0tt0n

Some cause happiness wherever they go; others whenever they go.

CHAOS, PANIC, AND DISORDER my work here is done...

Live without pretending, Love without depending, Listen without defending, Speak without offending
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  #7  
Old 05-21-2005, 10:35 PM
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Charlie Stylianos Charlie Stylianos is offline
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Very sweet!! What cams are you running? Noticed ~7.0mm of lift in those timing pics. Thats going to be a screamer.
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  #8  
Old 05-23-2005, 10:21 AM
Robert Mitchell Robert Mitchell is offline
 
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The cams are a 906/Carrera 6 grind by Webcams.
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2005 997 Grand-Am GS Spec. (The Pumpkin)
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  #9  
Old 05-23-2005, 12:20 PM
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Quote:
Originally Posted by Robert Mitchell
The cams are a 906/Carrera 6 grind by Webcams.
I can smell the race gas from here
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