Lighten Up the Rear

[Pillow]

I was wondering is anyone has removed the heater blower motor from thier engines? The process should be simple except the tubing from the fan shroud to the heat exchangers. Does anyone know where to get the two side vents necessary for this conversion? Or if they even fit SCs?

The air blower was introduced on the SCs and should have continued on through the last of the Carerras.

Also has anyone removed that useless cruise control unit? I never use mine so might as well get rid of it... I am not even sure if it works?


Thanks,

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Adrian Pillow
1979 911 SC
1966 VW Microbus
PCA - Peachstate Region

[RarlyL8]

My car has been stripped of everything not needed. The heating system is set up the same as for an earlier car. You can get the fan/shroud vents at a swap meet or new (I purchased new, not a lot of $$). The SC is running SSIs so all the heater plumbing is the same as with older cars. This system works perfectly, blows very hot in the winter.

[CamB]

There was an excellent post on the rennlist board on this:

http://forums.rennlist.com/scripts/rennforums/ultimatebb.cgi?ubb=get_topic&f=1&t=000034

Hey, I found it!

Cam

[wckrause]

I read that thread, including Roland's post.

I'm interested in adding fans. I want to add the Carerra footwell blowers to my SC. I drive the car all winter in Minnesota, and I need all the defrost I can get at idle. Roland mentioned it briefly in his post. Can somebody describe where the Carrera blowers are located and what they look like?

Apologies for jumping on your topic.

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Bill Krause
'79 911SC Euro

[This message has been edited by wckrause (edited 06-20-2001).]

[Yargk]

How much weight savings does back dating the heating provide?

Keith
79 930

[Doug Zielke]

Last winter, when doing routine maint, I had the blower and hoses out of the car. Not much weight at all. Now, all the a/c crap...that *is* another story. If you don't live in a hot climate, you can *hit-can the whole system to the tune of 75 lbs.

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'81 SC Coupe (aka: "Blue Bomber")
Canada West Region PCA
The Blue Bomber's Website

[Bill Verburg]

If you want a weight reduction that you can immediately and unequivocally feel, change front and rear bumpers to fiberglass. Losing 55 lbs from the extremities of the car does wonders for its handling.
Not so good in parking lots though.

[RarlyL8]

.............and if you REALLY want to lose weight drop the fan, A/C, and bumpers. I did, and won't look back!
(Also no sunroof, manual windows, mirrors, etc. It all adds up.)

[Yargk]

Yeah, bumpers, I know. My new bumpers will actually be sent to me this friday When I do my motor swap the A/C will go away as well. I was just wondering how much the back dated heating would help in all of this. Is it fifteen pounds or more?

Keith
79 930

[Tlook]

Speaking of bumper weight--I also removed the rear for fiberglass--which was aftermarket--I missed the 'original' right away--including fit and finish. There was a BIG difference in the change of 'ass swaying' after fiberglass was installed. I'm now having an original bumper at a Glass shop where there using it to make a mold, and make an original looking bumper--but out of fiberglass--minus the bumperettes of course. Any one interested, let me know, and I'll shoot some pictures of the finished product. Probably get the duplicates for under a 100.00

S in VA

[JohnC]

speaking of rear weight. what's the difference in lbs between a fiberglass turbo tail('78) and a factory rubber/steel tail?

[Pillow]

Thanks for the info guys! The Rennlist thread really gave some great details.

I anticipate the heater blower removal will save 7 pounds. The removal of the cruise control probably 10-15 pounds.

I have already deep sixed the A/C... The compressor is heavy! Have not taken the time to remove the front stuff yet though.

I have been contemplating removing the muffler all together and replacing it with a Supertrapp setup that runs from the cat pipe out through the stock drivers side outlet. this would be the lightest exhaust I can think of and does not sound that bad with a loss of 60ish pounds. Many track people run SSIs with a Supertrapp coming off each outlet and they sound great!

In the future I also would like to do fiberglass RUF style front and rear bumpers.

Currently I have a fiberglass whale tail and it seems very light considering its size. I would think a steal deck lid would be much heavier than a fiberglass tail.




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Adrian Pillow
1979 911 SC
1966 VW Microbus
PCA - Peachstate Region

[Pillow]

Thanks for the info guys! The Rennlist thread really gave some great details.

I anticipate the heater blower removal will save 7 pounds. The removal of the cruise control probably 10-15 pounds.

I have already deep sixed the A/C... The compressor is heavy! Have not taken the time to remove the front stuff yet though.

I have been contemplating removing the muffler all together and replacing it with a Supertrapp setup that runs from the cat pipe out through the stock drivers side outlet. this would be the lightest exhaust I can think of and does not sound that bad with a loss of 60ish pounds. Many track people run SSIs with a Supertrapp coming off each outlet and they sound great!

In the future I also would like to do fiberglass RUF style front and rear bumpers.

Currently I have a fiberglass whale tail and it seems very light considering its size. I would think a steal deck lid would be much heavier than a fiberglass tail.




------------------
Adrian Pillow
1979 911 SC
1966 VW Microbus
PCA - Peachstate Region

[Eric Coffey]

OK, if you are on the hunt for serious power-to-weight:

*carbon bumpers, doors, fenders, 1/4 panels, decklid/tail, and hood.
*Fuel-safe fuel cell.
*carbon Sparco racing seats.
*Carbon "935" manual side mirrors.
*Lexan door, rear, and 1/4 glass.
*manual windows, and locks.
*935 suspension.
*935 Ti/magnessium hubs.
*935 Ti differential (a mere $10,000)
*935 Ti axles.

*Remove ALL A/C,heat, and "power" componants, fog lights, radio, speakers, door panels, center console, dash kneebars, ashtray, rear seats, rear seat sound pad/liner, front and rear seat belts (replace with 5-point system), rear deck, rear deck sound pad/liner, all carpet, engine sound pad, rocker panels, and the list goes on and on and on.....


-Eric

[RarlyL8]

Then you end up with a rattle trap race car.
We drive STREET cars. What I have done to reduce weight is as far as you should go. Any further and the car begins to sound and drive too harsh, interior looks funny, and non-glass windows scratch and haze up.

[Yargk]

I'm trying to walk the line between heavy luxury race car (you didn't think those existed, did you?) and light bare bones street car. Since I've corner balanced my car I've found it weighs 2900 pounds. Without A/C and with new bumpers that should drop to 2715. Beyond that I'm not sure. I've thought of carbon deck lids and hoods as well as even a carbon sun roof (GT racing has one ). However I know I don't want carbon fenders. I'm looking for things that are reversible, I suppose. I know I'll add weight with the roll bar, oh well. I need to rip out the sound pad too...

Keith
79 930

[Roland Kunz]

Hello

The footweel frontblower units came with the 930 and the 911 convertible. They are retrofitable to all 911 from 69 on. Maybe to the earlier too but then you have to close the lower heat slider.

Electricity is done via the heat switch contact and a relay. The blowers have a single inline fuse. They are not as efficient as the rear blower unit but better then nothing. The main difference is the heat flow at idle and low speeds.

Ther wight is aprox.2 kg and it is in the middle between the axles.

Grüsse

[pwd72s]

Another weight loss clinic for your enjoyment:

http://www.early911sregistry.org/jCalzia.html

[Doug Zielke]

Tlook,
I'd be very interested to see your "original-look" fiberglass bumpers. Be sure to post some pics when you get them. Thanks!

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'81 SC Coupe (aka: "Blue Bomber")
Canada West Region PCA
The Blue Bomber's Website

[Clark Griswald]

This guy sells stock looking front and rear bumpers made from fiberglass. He calls them bumper "blades".

http://www.rennspd.com/

They use the stock bellows and valance, and give a totally stock appearance. The weight savings approaches the full fiberglass Ruf style and other units.

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Chuck Moreland '86 Cab - "Sparky", '77 Targa - "Sweet Pea"

[This message has been edited by Clark Griswald (edited 06-21-2001).]