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ADIDAS Samba Member
Joined: October 11, 2004 Posts: 30 Location: Belmont NC
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Posted: Mon Oct 16, 2017 6:20 pm Post subject: piston/cylinder options |
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I have a 1973 beetle with the stock 1600 engine which is disassembled. The crank and cam are both stock along with the 85.5mm pistons and cylinders. Are there any slightly larger slip in pistons/cylinders for this stock engine. The carb is the stock single solex unit which will be reused as well. Thanks |
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76760 Location: Sneaking up behind you
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Posted: Mon Oct 16, 2017 6:28 pm Post subject: Re: piston/cylinder options |
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They make 87 and 88 cylinders that will fit in with no machining. The 88s are thin so I wouldn't sue them. The 87 only increase the displacement to 1641 so their not really wroth it.
Performance is a slippery slope. it gets expensive real fast.
You can't just change one thing. _________________ 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 |
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sb001 Samba Member
Joined: May 19, 2011 Posts: 10399 Location: NW Arkansas
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Posted: Mon Oct 16, 2017 6:28 pm Post subject: Re: piston/cylinder options |
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Yes 87mm and even 88mm thin wall slip in cylinders are available. However some folks on here will tell you 87mm is the highest you can go for slip-ins, a few will say to not even use those. I have only ever used 85.5mm so I cannot give an opinion on quality/ reliabilty. _________________ I'm the humblest guy on this board.
1969 autostick sedan, family owned since new
1600 SP engine
Solex 30 PICT 3 carburetor
Bosch 113905205AE autostick distributor |
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andk5591 Samba Member
Joined: August 29, 2005 Posts: 16754 Location: State College, PA
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Posted: Mon Oct 16, 2017 6:36 pm Post subject: Re: piston/cylinder options |
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Same here - stock or go for a real bore increase (like 1776 or 1914). Just ponder this.....If power goes up proportionally to displacement increase, you may pick up may 1-1.5 HP with a slip in..... _________________ D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them... |
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mukluk Samba Member
Joined: October 18, 2012 Posts: 6985 Location: Clyde, TX
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Floating VW Samba Member
Joined: April 28, 2015 Posts: 1596 Location: The South Zone
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Posted: Mon Oct 16, 2017 7:58 pm Post subject: Re: piston/cylinder options |
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You could always just keep the cylinders you have, and stroke the crank instead. A 74 or 76mm crank with 85.5 cylinders makes for a fun little stroker engine and a great way to get your feet wet in the shallow end of the engine building pool. _________________ "It's time you started treating people as individuals, rather than mathematically predictable members of an aggregate set, regardless of how well that works." |
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ach60 Samba Member
Joined: May 14, 2001 Posts: 4139 Location: Santa Maria
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Posted: Mon Oct 16, 2017 9:02 pm Post subject: Re: piston/cylinder options |
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ADIDAS wrote: |
I have a 1973 beetle with the stock 1600 engine which is disassembled. The crank and cam are both stock along with the 85.5mm pistons and cylinders. Are there any slightly larger slip in pistons/cylinders for this stock engine. The carb is the stock single solex unit which will be reused as well. Thanks |
You need to find an Automotive Machine Shop in the greater Charlotte area that has experience with Air Cooled VWs.
You need this because your heads will need a valve job, and you can have the heads cut for 88 thick wall pistons & cylinders at the same time.
That way you can use the Machine in head, slip in case, 88 mm Thick wall Cylinders.
You'll also need to determine if your case needs machine work too.
If the main surfaces of the case are pounded, or beat up, or have ridges that catch your finger nail,
or if the case came apart because of too much end play, then you'll need machine work on your case too.
Here's some videos showing VW basic machine work
Flycutting VW head for bigger cylinders
Link
VW Case Align Bore
Link
Cutting VW Case for bigger cylinders
Link
_________________ Good Luck
Al |
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gt1953 Samba Member
Joined: May 08, 2002 Posts: 13843 Location: White Mountains Arizona
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Posted: Tue Oct 17, 2017 7:29 am Post subject: Re: piston/cylinder options |
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ADIDAS
What is the vehicle going to be used for. With that in mind build the engine for that purpose. Large or stock. Stock engines are forgiving. _________________ Volkswagen: We tune what we drive.
Numbers Matching VW's are getting harder to find. Source out the most Stock vehicle and keep that way. You will be glad you did.
72 type 1
72 Squareback
({59 Euro bug, 62, 63, 67, 68, 69, 73 type ones 68 & 69 type two, 68 Ghia all sold}) |
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