The Bumpin' Pumpkin - The tale of one 964's rebuild
09-30-2009, 12:45 PM
#76
A lower cost (and more readily available) alternative is to source 993 wheel carriers. My understanding is that these are also made of aluminum (not sure what the key design differences are), but they reduce unsprung weight by 18kg per side. This is mentioned on page 154 of "Porsche 911 - Celebration of a Legend"
18 kg per side? Looks too much to me.... the part can't be that heavy...! Presumably there's a missing comma...
10-01-2009, 05:51 AM
#77
Racer
Thread Starter
I also think they meant the different between the 963 and 993 RS wheel carriers, not the stock 993 wheel carriers. At any rate, they are very light compared to the stock 964 wheel carriers.
10-01-2009, 02:10 PM
#78
At any rate, they are very light compared to the stock 964 wheel carriers.
are they also very expensive?
P.S. I really LOVE your car!!! Please keep us updated
Last edited by anto1150; 10-01-2009 at 06:02 PM.
10-16-2009, 11:53 AM
#83
Racer
Thread Starter
Not sure about the stock 993 parts, but the 993 GT2 Evo parts are pricey...
10-20-2009, 01:16 PM
#84
Absolutely amazing
Road sleeper, this is an incredible build... Can you disclose the workshop you use. I live in KL and own a C2 964 Tiptronic. Couldnt find a C2 Manual for love nor money, and there were only a few tatty C4s around at the time, hence the purchase of the Tiptronic. So after looking at the work done on yours, I assume the workshop would be up for a manual conversion for me.. other threads have put me off the idea but based on your comments it looks like your guys would be up for it.. pls let me know
10-25-2009, 01:26 PM
#86
There have been several discussions re the wheel carriers aka uprights.
here's one
just a note on terminology, all 964 used steel uprights, all 993 used aluminum, there are 2 versions of the aluminum 993, normal which can be identified by long steering arms and 993RS(which was also used on the GT2 and GT2 EVO) which canbe identified by short steering arms. The RS arms alos have their own special outer steering arms
here's one
just a note on terminology, all 964 used steel uprights, all 993 used aluminum, there are 2 versions of the aluminum 993, normal which can be identified by long steering arms and 993RS(which was also used on the GT2 and GT2 EVO) which canbe identified by short steering arms. The RS arms alos have their own special outer steering arms
11-23-2009, 12:57 AM
#88
Racer
Thread Starter
Indeed. I've been tied up with traveling and such so I haven't had time to post the videos I've been intending to post.
A brief update: The car has about 2,000km on it and is running very well, save for 2 engine cut-outs due to 1) a lost distributor plug, and 2) the first SARD fuel pressure regulator failing.
I have not, as of yet, given the car a run above anything higher than ~90kph, because we haven't done final tune on the engine maps, and because I cherish my driving license. The car will go up to Malaysia on the 11th of December for a Porsche Club Singapore track day (final tuning will be done then), and we'll hopefully see what the engine is capable of.
In terms of driving around town, the engine (and the car as a whole) is quite driveable. The engine idles very smoothly for a 3.8l with ITBs and aggresive cam profiles. It is also surprisingly tractable for such a large displacement engine, you can let the clutch out gently and the car will move off without stalling. However, there is a lack of torque in the rev range below 3,500 rpms, which makes heel-toeing a very thought intensive process, though I suspect this is due to the amount of air that moves through the ITBs.
A couple of negative points:
- Strong fuel smell in the cabin - This could be due to the original fuel tank filler neck... I have not had the chance to check the part number and see if it is the "leak proof" version
- Lightweight a/c heats up - Something needs to be done about the plumbing, in particular to introduce a fresh air vent as the heat build up in the front bonnet area makes it very difficult for the a/c to cool the air it is taking in, especially if it is being recirculated
- Ergonomics - Recaro bucket seats and Schroth harnesses are fantastic for holding you in place, but they are bad for 1) carting women around (especially those in skirts), 2) getting in and out of without being somewhat flexible (see point 1), and 3) ones posterior and lower back on drives longer than an hour or two.
- Sound - A note to those of you considering removing your insulation material to make your cars lighter... With none in mine, it is difficult to have a conversation (unless you are shouting) once the car is moving. This is due largely to the engine noise, though there is a lot of rattling, clinking and knocking from the various road debris hitting the underside of the car, the body noise under flex, etc.
Anyway... on to the fun stuff...
A brief update: The car has about 2,000km on it and is running very well, save for 2 engine cut-outs due to 1) a lost distributor plug, and 2) the first SARD fuel pressure regulator failing.
I have not, as of yet, given the car a run above anything higher than ~90kph, because we haven't done final tune on the engine maps, and because I cherish my driving license. The car will go up to Malaysia on the 11th of December for a Porsche Club Singapore track day (final tuning will be done then), and we'll hopefully see what the engine is capable of.
In terms of driving around town, the engine (and the car as a whole) is quite driveable. The engine idles very smoothly for a 3.8l with ITBs and aggresive cam profiles. It is also surprisingly tractable for such a large displacement engine, you can let the clutch out gently and the car will move off without stalling. However, there is a lack of torque in the rev range below 3,500 rpms, which makes heel-toeing a very thought intensive process, though I suspect this is due to the amount of air that moves through the ITBs.
A couple of negative points:
- Strong fuel smell in the cabin - This could be due to the original fuel tank filler neck... I have not had the chance to check the part number and see if it is the "leak proof" version
- Lightweight a/c heats up - Something needs to be done about the plumbing, in particular to introduce a fresh air vent as the heat build up in the front bonnet area makes it very difficult for the a/c to cool the air it is taking in, especially if it is being recirculated
- Ergonomics - Recaro bucket seats and Schroth harnesses are fantastic for holding you in place, but they are bad for 1) carting women around (especially those in skirts), 2) getting in and out of without being somewhat flexible (see point 1), and 3) ones posterior and lower back on drives longer than an hour or two.
- Sound - A note to those of you considering removing your insulation material to make your cars lighter... With none in mine, it is difficult to have a conversation (unless you are shouting) once the car is moving. This is due largely to the engine noise, though there is a lot of rattling, clinking and knocking from the various road debris hitting the underside of the car, the body noise under flex, etc.
Anyway... on to the fun stuff...
11-23-2009, 01:01 AM
#89
Racer
Thread Starter
Video #1 - It's ALIVE!
This is a clip of the first time we started the car up and managed to get it to start and stay on. It is loud because we are running straight pipes right off the headers, and the engine note is a bit coarse because the Motec was loaded with a base map for a modified 911 SC (this has since been dyno tuned to suit the 3.8l with its ITBs, aggresive cams, and Fabspeed RSR exhaust).
I'll write more later, but keep an eye on the straight pipes, especially on the overrun...
Enjoy!
http://www.youtube.com/watch?v=bHcU_tcs2Xo
I'll write more later, but keep an eye on the straight pipes, especially on the overrun...
Enjoy!
http://www.youtube.com/watch?v=bHcU_tcs2Xo
11-23-2009, 12:55 PM
#90
Racer
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Roadsleeper.
Screw that clip
Part II - OMG< OMG OMG
That car sounds fu$#ing awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
http://www.youtube.com/watch?v=TvKqGzFvXHw&NR=1
Screw that clip
Part II - OMG< OMG OMG
That car sounds fu$#ing awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
http://www.youtube.com/watch?v=TvKqGzFvXHw&NR=1