The weight saving thread

[cpalma]

hey guys, i stumbled onto the "aluminum face" KEP pp ib the optional selection and it says the same thing in the site - 2.5-3lbs wgt. reduction. It also says with a sprayed on matrix to reduce wear (wonder what that is?)....but if it helps quicker revs why not. Plus 110usd on top of the pp price, check this out:

http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=CFP0003

[Bruce]

Also from the Aircooled.net page:

"We do NOT recommend this if you are planning on burnouts, clutch slippage will hurt the face of the Pressure Plate."

Where's the fun in that??!?

I wonder if this aluminium shoe has the same propensity to wear into a cone shape like the iron one does?  Anyone used one of these clutches?

[Fastbrit]

Anyone used one of these clutches?

Here ya go!

In terms of the pressure plates, Kennedy still do them, and when I bought mine (recently) the 200mm were off the shelf, but the 180mm were special order. I have to say they were really good to deal with and shipped all the bits out top speed.

Be aware that the ali version should only be used with a regular disc like a Dakin or similar, not a puck or a Black Magic etc.

Peter

[benssp]

http://www.thesamba.com/vw/classifieds/detail.php?id=852152 shotgun lightening

[Bruce]

In terms of the pressure plates, Kennedy still do them, and when I bought mine (recently) the 200mm were off the shelf,
Peter

Peter, have you installed this yet?  What's it drive like?

On another board, someone stated that the face is coated with a "Tungsten/Cobalt" coating.  That should wear quite well.

[Peter Shattock]

I have not used the 180mm one yet, but I have used the 200mm one for two races which was 9 burnouts and 9 full passes. I've also done around 500 road mikes. The first meeting there was no problem at all with 2 12 sec passes and 3 in the 11's (the car with me in it weighs around 1560lbs (Phil can you remember as I appear to have lost the weigh in bit of paper the MSA guy gave us) and has around 170-180hp). The second meeting I messed up the first burn out as I did not tape up the button on my Hydraulic handbrake and it slipped the clutch. After each of the 4 runs that weekend the clutch did smell but there was no sign of slip on my data logger so I'm guessing there is not an on going problem as the car ran 2 more 12 sec passes and another 2 11's and was OK with the drive home which is a bout 2 1/2 hours long.

Obviously it will depend on your combination (weight and power / torque) but if you’re in this sort of Ball Park, you should be fine. Interestingly when the pressure plate was first fitted we did try shimming it, and there was more pressure available. From memory it was almost exactly 170 out of the box, and I think we had it to around 200 with 0.5mm shims (I would need to check the actual figures but it was in that order). It was not shimmed when installed, it was just to check what we had, if we needed it.

The motor will be out of the car in 3 weeks time so I'll check to see how the parts are looking and post up here with what I find.

Hope this helps

Peter

[andy M.]

Peter,

your car weighed in at 1346lb if i remember correctly, exactly 30lbs lighter than mine, although not for long....

cheers

andy

[Peter Shattock]

Thanks Andy,

I'll have a look through my stuff tonight, as I've lost a timing slip as well. It doesn't bode well for the Club, if the chief paper shuffler, is loosing all his paperwork!

See you soon Peter

[andy M.]

old age is a terrible thing, it's a good job you're not driving to sweden on your own

[Phil West]

Peter,

your car weighed in at 1346lb if i remember correctly, exactly 30lbs lighter than mine, although not for long....

cheers

andy

Actually his ticket said 1,340lbs although that included the helmet at 3.3lbs so actual car weight was a smidge under 1,337lbs, or roughly 606KG.

Another 6 kilos to break the magic 600 mark!

Cheers
Phil

[Peter Shattock]

Thanks guys, the poor old man actually found his time slip, and the bit of paper with the weights on (1346lbs actually) in my wallet. It’s just a shame there was no money in there, but finding the previously lost bits of paper softened the blow!

So the car is 1343lbs and I weigh in at 155lbs with my suit and helmet etc, so my all up race weigh is around 1498lbs now in race trim (no muffler, fan belt, oil cooler, or heavy old radials) so it will be quite a bit heavier at the stop lights on the street. I think the majority of the weight loss this year has come from revolving parts in the gearbox and engine (wheels as well) so its not just dead weight in the car either, it’s mostly revolving, which is obviously good. I don't think I'll be saving another 10kg though, in fact if anything the car will be heavier next year I suspect.

So Phil you are still the lightest by some margin, but look out Woodentop is coming in 2010 (I think he really is this time too!) and don't forget Heir Marriot, as he will no doubt be scheming over the winter, to take your crown with all his fangled aircraft technology! Not forgetting Greg, as he seams to have weight “problems” these days too!

I'm looking forward to the 2010 weigh in contest already.

Peter

[Phil West]

whoops sorry mate I actually read the ticket with the last digit as a zero but evidently it's a '6'.

Mine ended up at 601kg / 1323lb before me but I'm not skinny like you so mine was 1500 with me in it.  So you've done me by 2 pounds.  Likewise once I put the bigger motor in she's gonna weigh a heck of a lot more.

Plus as you say once Woodie arrives all bets are off - I reckon way lighter than either of ours.  Oh and in theory Jim's tube chassis came out at 1298 (if I remember right?) but that was before the Pauter block which must have added, what, 50lbs?  The Sting was 1330 I think but that's gone now.  Which means I may just have it until Woodencar blow us all away.

[Neil Davies]

whoops sorry mate I actually read the ticket with the last digit as a zero but evidently it's a '6'.

Mine ended up at 601kg / 1323lb before me but I'm not skinny like you so mine was 1500 with me in it.  So you've done me by 2 pounds.  Likewise once I put the bigger motor in she's gonna weigh a heck of a lot more.

Plus as you say once Woodie arrives all bets are off - I reckon way lighter than either of ours.  Oh and in theory Jim's tube chassis came out at 1298 (if I remember right?) but that was before the Pauter block which must have added, what, 50lbs?  The Sting was 1330 I think but that's gone now.  Which means I may just have it until Woodencar blow us all away.

Well as I weigh a hell of a lot more than you two (probably the two of you put together!) I'm going to need something seriously light! I'm going to race just a bonnet on a floorpan I think!

[Fastbrit]

Race driver for rent. Weighs in at 126lbs (57.2kg)...

[andy M.]

at least none of us have gone this far.... yet

andy

[andy M.]

More anorexia, just under a kilo,

andy

[Pas]

I am running a bus master in my 66, definitely lighter.

Hey Chris

Is that an ali or iron master cylinder ?

Cheers Pas

[Chris W]

No its not aluminum.

[bill stipe]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

[Frallan]

Also from the Aircooled.net page:

"We do NOT recommend this if you are planning on burnouts, clutch slippage will hurt the face of the Pressure Plate."

Where's the fun in that??!?

I wonder if this aluminium shoe has the same propensity to wear into a cone shape like the iron one does?  Anyone used one of these clutches?

Some Swedish friends built their own billet pressure face for the Kennedy. I am not sure how they solved the face but not with coating. Probably a separate replacebale riveted steel face.
It worked quite well as proven when they became class winners for several years with their buggy..and the clutch as far as I remember. They did a lot of burnouts, for sure.
These are the same guys that built their own 61.2 mmTerminators from billet plus many more inventions.
The Bug Professors son and father Martin and Ambjörn Karlsson.

[Zach Gomulka]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

I've got one of those in my stash, too. I've heard 3 pounds. I'll be sure to weigh the difference soon!

[Zach Gomulka]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

I've got one of those in my stash, too. I've heard 3 pounds. I'll be sure to weigh the difference soon!

Here we go... Stock "Made in Germany" starter from my '67, weighing in at 5,633.9 grams. Bosch SR15N hitting the scale at a scant 3,130.5 grams... a savings of just over 2.5kg, that's 5 1/2 pounds!!!

[Bruce]

Even better, it comes off the heavy end of the car.  Don't forget to drill a few holes in the flange!

[Lee.C]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

I've got one of those in my stash, too. I've heard 3 pounds. I'll be sure to weigh the difference soon!

Here we go... Stock "Made in Germany" starter from my '67, weighing in at 5,633.9 grams. Bosch SR15N hitting the scale at a scant 3,130.5 grams... a savings of just over 2.5kg, that's 5 1/2 pounds!!!

Thats incredible!!!

[Phil West]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

I've got one of those in my stash, too. I've heard 3 pounds. I'll be sure to weigh the difference soon!

Here we go... Stock "Made in Germany" starter from my '67, weighing in at 5,633.9 grams. Bosch SR15N hitting the scale at a scant 3,130.5 grams... a savings of just over 2.5kg, that's 5 1/2 pounds!!!

Over here we use a Brize engineering starter which is basically based on an early 911 unit, but all newly built.  They come in at 2,577 gms complete.

[Zach Gomulka]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

I've got one of those in my stash, too. I've heard 3 pounds. I'll be sure to weigh the difference soon!

Here we go... Stock "Made in Germany" starter from my '67, weighing in at 5,633.9 grams. Bosch SR15N hitting the scale at a scant 3,130.5 grams... a savings of just over 2.5kg, that's 5 1/2 pounds!!!

Over here we use a Brize engineering starter which is basically based on an early 911 unit, but all newly built.  They come in at 2,577 gms complete.

Really? I'd love to see some more pics/info on that one.

[Phil West]

Bosch SR15N.  Haven't had a chance to weigh it but the starter motor is barely larger than the solenoid.  Came from a swap meet this past weekened.

I've got one of those in my stash, too. I've heard 3 pounds. I'll be sure to weigh the difference soon!

Here we go... Stock "Made in Germany" starter from my '67, weighing in at 5,633.9 grams. Bosch SR15N hitting the scale at a scant 3,130.5 grams... a savings of just over 2.5kg, that's 5 1/2 pounds!!!

Over here we use a Brize engineering starter which is basically based on an early 911 unit, but all newly built.  They come in at 2,577 gms complete.

Really? I'd love to see some more pics/info on that one.

http://www.brise.co.uk/Porsche_starter_motors.html

It's the middle one, for the 911.  Reliable and powerful - mine starts in a flash with this baby.

[Bruce]

Here are the comparison numbers for those starters.
The Brise starter is 550g lighter than the Bosch, but costs $220 more (plus shipping)

[andy M.]

I've had one of the Brise starters in my car now for over three years and it's always been ultra reliable, cranks over a high comp engine really easy and looks cool too, and half a kilo is half a kilo,

andy

[SlingShot]

This blows em all out of the park