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removing weight from Engine/ boot area

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Old 05-17-2013, 02:10 AM
  #16  
kos11-12
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Originally Posted by HiWind
+1 .... Sound deadening? A few grams.
Is there a rear under bumper/reinforcement to be drilled/shortened/removed?
I think Bill from the forum mention drilling is only saving a few pounds , probably cutting a whole section of the impact bumper will save more
I think all the little savings would had up at the end ....

Be interested to hear and see pictures of the electric power steering .

Jack,
I suppose you removed the rear wiper & motor and rear folding seats, this lot is about 7 kg ,
what about the rear screen .
Old 05-17-2013, 02:36 AM
  #17  
993James993
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The sound pad weighs at least 4 lbs. My son removed it and weighed the pieces. I should have his data somewhere. The stereo, amp and speakers are easily removed as is the window washer reservoir, the truck carpet and the spare tire and inflator. A G-pipe will improve the sound and lighten up the car as well. Replacing the seats will reduce quite a few pounds, but replacing them is expensive. Not sure of the total savings when you factor in tires, but D-90 wheels are lighter than Cup I's.
Old 05-17-2013, 08:56 AM
  #18  
M3EvoBR
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Originally Posted by KaiB
I run a RSR electric pump...trust me, the steering is sublime!
Do you guys really feel the need for an electric steering ?
I only drove my car a few times, but was fine with it, even with a loose rear end, where I had to exercise quite some steering.
Old 05-17-2013, 09:21 AM
  #19  
KaiB
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Originally Posted by M3EvoBR
Do you guys really feel the need for an electric steering ?
I only drove my car a few times, but was fine with it, even with a loose rear end, where I had to exercise quite some steering.
I can tell you it made a tremendous difference for me - I've been rural and farmed my entire life and am relatively powerful for a crusty old guy.

After a day on the big slicks, I would get to the motel in pain, not sleep well and be stiff the next morning; add this to on-track heat and fatigue and I promise the Cup steering has made quite a difference in my performance.

It also works very well. I miss no steering feel at all. If one sells his RSA rack, cost recovery is almost 50%...and hearing the RSR pump spin up and down with the ignition is 100% cool!!!
Old 05-17-2013, 09:35 AM
  #20  
M3EvoBR
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lol, same here but in different areas... have too many hand injuries, but so far had been fine. I'm sure I don't have enough seat time neither the big slicks yet.
Old 05-17-2013, 10:12 AM
  #21  
NineMeister
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Originally Posted by M3EvoBR
Do you guys really feel the need for an electric steering ?
I only drove my car a few times, but was fine with it, even with a loose rear end, where I had to exercise quite some steering.

On our more advanced 9m Race engine conversions an electric pump power steering conversion is absolutely essential because the engines accelerate so fast that the fluid in the mechanical pump aerates and throws itself all over the engine bay. We have a similar problem with the RS single pulley drive as the belts turn inside out because they do not have the drive capacity to accelerate the alternator/fan at the same rate as the engine; a 9m Racing poly-belt drive fixes that one.


Save weight from engine? Fit a 993 crank, rods & pistons - much lighter than 964 and reducing weight from reciprocal parts of the engine is worth 6x taking weight from the flywheel. Talking about flywheels, with a Motec kit you could run a 9m Superlight RS flywheel instead of the stock RS, that shaves another 2lb off and improves acceleration noticeably. Will only work with Motec, there is no chance of getting a stock Motronic to idle with a Superlight.
Old 05-17-2013, 10:20 AM
  #22  
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Originally Posted by NineMeister
On our more advanced 9m Race engine conversions an electric pump power steering conversion is absolutely essential because the engines accelerate so fast that the fluid in the mechanical pump aerates and throws itself all over the engine bay. We have a similar problem with the RS single pulley drive as the belts turn inside out because they do not have the drive capacity to accelerate the alternator/fan at the same rate as the engine; a 9m Racing poly-belt drive fixes that one.


Save weight from engine? Fit a 993 crank, rods & pistons - much lighter than 964 and reducing weight from reciprocal parts of the engine is worth 6x taking weight from the flywheel. Talking about flywheels, with a Motec kit you could run a 9m Superlight RS flywheel instead of the stock RS, that shaves another 2lb off and improves acceleration noticeably. Will only work with Motec, there is no chance of getting a stock Motronic to idle with a Superlight.
That's a whole new ball game

My steering is unassisted, old fashion spinach power
Old 05-17-2013, 11:21 AM
  #23  
Sire
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Are ther pics of removing en putting in an electric pump and what are the cost?
Old 05-17-2013, 11:29 AM
  #24  
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I will try and track down some pics. There have been a couple of threads on the 993 forum.

Costs:

Pump: Between 750 and 1200
Mount and lines: ~ $300
Wiring: ~$25 (Big fuse etc)
Labor: (if you cannot do yourself) unsure probably around 5 hours all in. (not really sure I did mine over a number of different sessions)

All in: between $1000 and $2000 depending on who does the work.
Old 05-17-2013, 12:07 PM
  #25  
RSAErick
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Originally Posted by M3EvoBR
Do you guys really feel the need for an electric steering ?
I only drove my car a few times, but was fine with it, even with a loose rear end, where I had to exercise quite some steering.
Disclaimer: I've never compared the manual to the electric steering; I've never run on slicks; and 85F in Seattle is considered HOT. So take my comments with a grain of salt (whatever that means).

But I'm a 'svelte' 6'1" 180lbs (which is my way of saying that I'm somewhat tall and skinny - aka wimpy), and I don't find the manual rack to be all that difficult, or require that much muscle, when on the track.

Parking lots are a different situation altogether, where some power assist would be appreciated.

Maybe ignorance is bliss, but I think that the tactile feel of the manual steering is amazingly direct on the track. A perfect compliment to our light front ends. In my eyes, it's hard to imagine it being any better.
Old 05-17-2013, 12:07 PM
  #26  
Sire
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Thnx for quick reply, it sounds like an good investment. How did you or where did you install electric pump in the front?
Old 05-17-2013, 12:22 PM
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jack.pe
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Originally Posted by NineMeister

Save weight from engine? Fit a 993 crank, rods & pistons - much lighter than 964 and reducing weight from reciprocal parts of the engine is worth 6x taking weight from the flywheel. Talking about flywheels, with a Motec kit you could run a 9m Superlight RS flywheel instead of the stock RS, that shaves another 2lb off and improves acceleration noticeably. Will only work with Motec, there is no chance of getting a stock Motronic to idle with a Superlight.
Interesting.. but are 993 rods, cranks and pistons not supposed to be more fragile and not as good quality as the 964 ones?
Old 05-17-2013, 12:30 PM
  #28  
robt964
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>Thnx for quick reply, it sounds like an good investment. How did you or where did you install electric pump in the front?

There are a few other options to the porsche pump. For example I'm using a mercedes unit that is almost identical to the porsche one and a fraction of the cost. I'll post some pics of the installed pump later tonight on my "964 Refurb" thread.
Old 05-17-2013, 12:47 PM
  #29  
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[QUOTE=jack.pe;10466886]...aside from tinware which I am already going to get redone in fibreglass...QUOTE]

Jack - Just wanted to pick up on this point as I have the factory 'crumbling iron oxide' fit for the 2 forward sections and cannot bring myself to apply for a 2nd mortage in order to replace them with steel parts that will just do the same in a few years. (The price suggests to me that there is a diamond encrusted tool in the factory that is used to carefully impregnate the steel with hydrochloric acid. Either that or they are steel plated carbon kevlar with temperature-activated rust camouflage.)

Which ones are you replacing and will there be any duplicates in the production line?

Cheers,

Z

PS/ Anyone know WHY have the aftermarket "gold foil and carbon" crowd overlooked these bits?
Old 05-17-2013, 01:11 PM
  #30  
Sire
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now im curious Mercedes, when i was in the factory i saw they used Mercedes gearboxes. That was in the time of the 996


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