Lightening any and everything …

[BFB]

There’s a lot of threads on lightened flywheels and a few on lightening reciprocating parts but those seem mostly to be about balance things out. So i thought a thread on what you’ve done or seen done to lighten parts n pieces might be interesting, whether it worked or didn’t or even good or bad ideas.
I’ll start with a couple pics i found, i know i have pics of other stuff but not on this device..

3297 grams is about 7.25lbs

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"how am i supposed to torque the rear wheel nut to 250 ft lbs??? " - clonebug
An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
Most experts aren't.

[vwinnovator]

cool stuff, but when is too light TOO light??

[FarmerBill]

[vwracerdave]

richardcranium is back.

Is has been determined by many VW engine builders the last 40 years that a 12 1/2 Lb. flywheel works the best for a street driven VW engine. Anything less doesn't allow the engine to be driven smoothly on the streets. It also has an effect on shifting as the synchro's have a difficult time keeping up, and will cause them to wear out sooner. If you remove too much PP material, it will overheat and warp with aggressive clutch use.

Those lightened flywheels were an old school Formula Vee trick back when they raced stock 1200cc.
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2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK

[QRP]

[BFB]

[Vanapplebomb]

Richard, don’t be surprised that a lot of people have a negative reaction to your posts.

Also, why did you change your forum name?
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

[vwracerdave]

[BFB]

[Glenn]

Moderators Note: "DON'T post personal attacks"

Remember it's easier for me to simply delete the entire topic than clean it up.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare

עַם יִשְׂרָאֵל חַי

[BFB]

Here’s something cool. and some of you will probably remember seeing this in a thread a “few” years ago…

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"how am i supposed to torque the rear wheel nut to 250 ft lbs??? " - clonebug
An interesting thing happens in forums where everyone starts parroting the same thing and "common knowledge" takes over.
Most experts aren't.

[Glenn]

Stupid questions:
Is any of this practical? Meaning does it last more than 1 rpm?

What are the application for this extreme machine work?

Porsche 917 key

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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare

עַם יִשְׂרָאֵל חַי

[Chickensoup]

Bad chemistries brah simple math.

Example 1: Dude 1 insults dude 2 for no real reason expecting himself to be crowd surfed and worshiped = bad outcome

Example 2: Dude 1 gives dude 2 helpful criticism from the heart based off words of knowelege hoping to better the life of a brother = good outcome.

Choose your master.
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-'85 c10 5.3 LS, cam, heads, long tubes, x pipe, 3 inch spin tech's
-'01 e46 325ci *tree modded
-'05 B5.5 TDI Wagon 17in sport rims ;EGR + BSM + ASV Delete, Stage-2 Tune, straight pipe
'65 Tourist Delivery Build
'66 RIP

[Vanapplebomb]

Lately, my focus has been on valve train. My next build I am looking at hollow stem 8mm valves, or solid 7mm valves. Also light pushrods (aluminum) and valve springs. Currently looking at a set of Comp Cams beehive springs. I would love to find a light conical spring, but those are harder to come by. Several out there, but haven’t quite found one that fits the bill. A bit harder to fit without cutting the guide boss…which I refer not to remove material from unless I absolutely have to. I am pretty confident I can run an 86B cam up to 7k rpm with a beehive spring that actually has the same or less seat load than the stock springs. With conical springs, I could probably go as low as 90Lbs on the seat and easy rev to 7k rpm with no issues.
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

[Chickensoup]

[DerrickfromNC1]

[vwracerdave]

[Howard 111]

One modification that's overlooked most of the time is lightening the wrist pins. It's a cheap and easy modification that takes weight off of a place that really matters, yet doesn't take away from the durability. I've always run them in all drag, and hot street cars, and run them in my current turbo street Ghia.

There are venders, or any machine shop can do it.
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1973 Karmann Ghia
Turbocharged, Fuel Injected
http://www.thesamba.com/vw/forum/viewtopic.php?t=531270

[raygreenwood]

Probably the most effective "lightening" I have seen......ditch the unused seats, the spare tire....and the make the driver dump 30 pounds. The effects are amazing!


Ray

[Dan Ruddock]