Weight savings in a 1991 turbo

[strokher racing]

I have a 1991 911 turbo, and was wondering what people do to these cars to drop weight. I have a fiberglass deck and wing, but would prefer to stay away from glass body panels. Other than that let me hear what you have done! Weights would be great as well. Lots of information on the older cars, but have not seen much on mine.

[WPOZZZ]

The same things should work on the 965. Remove sound insulation, ac system, stereo system, carpet in cabin and trunk. Replace heavy electric seats with lightweight racing seats, replace battery with a Braille battery...

[stup]

Fit shorter performance Headers/exhaust
Remove air injection/pump etc (if this is possible in your country with emmision regs etc)

[onboost]

Originally Posted by stup

Fit shorter performance Headers/exhaust
Remove air injection/pump etc (if this is possible in your country with emmision regs etc)

Ha, ha.ha, ha... obviously you haven't seen his motor! That stuffs' long gone!!

[rsrmike]

The stock dual mass flywheel is a good one to reduce weight. Of course you need a different ignition to run one on a c-2 turbo...

Sounds like that may be long gone too...

You could always graft on a non-sunroof roof panel, if you have a sunroof...

[DDDD]

Originally Posted by WPOZZZ

The same things should work on the 965. Remove sound insulation, ac system, stereo system, carpet in cabin and trunk. Replace heavy electric seats with lightweight racing seats, replace battery with a Braille battery...

DEKA makes a generic Battery that they sell under such names as Braille or Big Crank. The Braille costs $200 and the equivalent Big Crank is about $60.

By the way, all DEKA batterys are much stronger than odyessy batteries in the same size range and also much cheaper.

http://forums.vwvortex.com/zerothread?id=2353060

I run the "Big Crank" Deka in my car, I got a 17 lbs battery with as much juice as the 26 pound odyssey. It is a little confusing, but the Braille battery website tells you the real output of the Deka batteries in question, and the generic cheaper websites like Big Crank under-report the output by about 50%. The bargain DEKA batteries are all the same output as the Braille/DEKA. Same exact thing.

[AFM744]

No kidding on the Dual-Mass!!! I just pulled mine off the longblock the other day... 'bout broke the garage floor when it came off!!!

It sure isn't going back on. Bring on the gear-chatter, I hate slow-revving engines.

[AFM744]

In more general comment to the thread, I'm not going to try to strip my car to a track axe, but I am going to try to remove the heaviest stuff farthest from its polar moment of inertia. In engrish that's the stuff furthest from the middle. The PC925 I put in my last car is still going strong 4yrs later so I'm inclined towards that. Definitely a LWFW. The above-mentioned removal of smog. I already have a full B&B.

[DDDD]

Here is my list of weight savings.

Spare tire 35 lbs
lower door pockets 6 lbs
tool kit/compressor/floor mats 10 lbs
zork pipe weighs 2 pounds total/replaces muffler system
B+B headers weigh maybe 15 lbs less than stock.
Back seat tops 15 lbs.
Air conditioning 75 lbs.
Full size battery 35 lbs
Deka replacement battery 17 lbs
rear bumper with shocks and pads 45 lbs
front bumper with no shocks or lights 25 lbs
Fog lights/front bumper shocks/washer fluid tank and system 34 lbs (with no fluid in the tank!)
rear speaker deck 12 lbs (replace with carpeting)
rear insulation behind seat, top piece 8 lbs, bottom piece 17 lbs
rubber tray tail unit 28 pounds
rear engine lid 10 lbs
modern C2 diverter valve set up from intercooler subtracts about 8 or ten pounds

I know that doesn't all apply to your situation, and came off an 1976 930, but it is good information to get out there in cyberspace.

[strokher racing]

I am not real big on the small battery. I have ran them in my cobra, and they just simply dont have much reserve in them. Ya smog is gone in my car lol.

[strokher racing]

The AC system weighs 75 pounds?

[DDDD]

Originally Posted by strokher racing

The AC system weighs 75 pounds?

Rear condensor and bracket
front condensor and bracket
compressor unit with clutch which also is parasitic drag on your engine pulley system
front blower fan
20' worth of hoses
undercar grille to protect aforementioned front condensor
Evaporator unit in smuggler's box

I think the freon even weighs several pounds, not that it ever stayed in my system for more than a month...

The sad part is I didn't even remove the fan in the smuggler box or the blower under the dash because I use that loop for air circulation in the cabin.

Even a single condensor system probably weighs 60 lbs or more, especially if you remove the things I didn't. Out of me and two other guys who did this locally, we all got over 60lbs from AC removal.

[DDDD]

I just did a quick charge on my little DEKA today since the car has been sitting for like three months.

With a 1.5 amp charger, it juiced up in about four hours to full capacity.

If I drive the car every couple weeks, I don't bother charging it.

[911nut]

I'm going after the low hanging fruit but a stripped out 965 has no appeal to me:

* Rarlyl8 muffler in place of the cat and stock muffler (someday) saves approx. 50 lb. Currently I have a cat bypass installed so I'm halfway there.

* No Air pump and associated plumbing saves 20 Lb.

* Drain 7.5 litre reservoir 17 lb.

* Westco battery in place of stock battery 30 Lb.

* No spare or tools 50 lb.

So now I'll save approximately 170 lb. and the car still has the stock appearance.

[strokher racing]

Dang didnt know the AC system weighed that much. What is the 7.5 reservoir? I dont want to gut my car, but I am going to shed a few pounds. Not enough hp to push it around

[strokher racing]

I have a burns 4 inch muffler on mine. That thing weighs nothing!

[911nut]

The A/C in my SC was 70 lb but it had hoses running everywhere and two condensers.
I think I read on Rennlist that the 964/965 A/C is around 55 - 60 lb.
I'd remove my radio before I'd remove my A/C.

[DDDD]

Originally Posted by 911nut

The A/C in my SC was 70 lb but it had hoses running everywhere and two condensers.
I think I read on Rennlist that the 964/965 A/C is around 55 - 60 lb.
I'd remove my radio before I'd remove my A/C.

The radio weighs only a few pounds, but so do the speakers. If you have four speakers and the radio removed, it may be 12-14 lbs...

I kept the tunes, just removed the whole rear speaker deck and will put down some black carpeting instead. The radio is just as loud and clear thru the door speakers, IMO.

[jeff91C2T]

Originally Posted by rsrmike

The stock dual mass flywheel is a good one to reduce weight. Of course you need a different ignition to run one on a c-2 turbo...

Sounds like that may be long gone too...

You could always graft on a non-sunroof roof panel, if you have a sunroof...

Just went through a full service on my 91 Turbo (mainly a trans refresh). You can get a light weight flywheel that has the proper spacing for the pick up so no need for a different ignition. And on another side note the disk I went with based on others experience was the spring centerd version to help with noise and saving wear and tear on the rest of the drive train. This did require a different throwout bearing then stock but it all goes together well.

Cheers,
Jeff

[AFM744]

Jeff, is the Patrick the only LWFW that bolts on to our car?