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Rhythm Thief
Firing on two.
Joined: March 10th, 2010, 12:37 am
Posts: 1927
Location: Alone in my polytunnel with my pitiful competition onions
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 VW Beetle 1500 pistons I'm toying with the idea of trying to mate a pair of VW 1500 pistons and barrels with a 2CV engine. Does anyone know if this will work, or is it up to me to pioneer this (and no doubt fail expensively  )? The 1500 engine has a stroke of 69mm, as against the 2CV's 70mm, but I'm not sure about the diameters of the barrels. Can't find much on Google either. Any thoughts? Incidentally, I don't feel the need for more power particularly, but since when was a project like this about "need"?  EDIT: Hmmmm, maybe I should have put this in "Technical".
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| March 20th, 2010, 9:53 pm |
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Neil
super slot
Joined: November 28th, 2008, 11:14 pm
Posts: 8797
Location: Cornwall, UK
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Re: VW Beetle 1500 pistons moved!  I posted this the other day in Harry's 652 thead:  Quote: Antony from Bandung West Java sent these pictures of his 1985 FAF - he had recently rebuilt his 602cc 2CV engine by using the pistons/sleeves from a 1500cc VW to upgrade his egnine size to 750cc. Sounds like good ole Citroenist ingenuity to add a few horsies to this rare 2CV derivative.
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| March 20th, 2010, 10:14 pm |
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Rhythm Thief
Firing on two.
Joined: March 10th, 2010, 12:37 am
Posts: 1927
Location: Alone in my polytunnel with my pitiful competition onions
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Re: VW Beetle 1500 pistons That's where I nicked the idea from.
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| March 20th, 2010, 10:28 pm |
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Neil
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Joined: November 28th, 2008, 11:14 pm
Posts: 8797
Location: Cornwall, UK
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Re: VW Beetle 1500 pistons Rhythm Thief wrote: That's where I nicked the idea from.  
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| March 20th, 2010, 10:29 pm |
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terpineol
Firing on two.
Joined: May 14th, 2009, 6:31 pm
Posts: 210
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Re: VW Beetle 1500 pistons
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| March 20th, 2010, 10:31 pm |
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Rhythm Thief
Firing on two.
Joined: March 10th, 2010, 12:37 am
Posts: 1927
Location: Alone in my polytunnel with my pitiful competition onions
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Re: VW Beetle 1500 pistons Wow. Less than £150 for four barrels and pistons. Cheaper than 2CV stuff .
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| March 20th, 2010, 10:48 pm |
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Joolz
Firing on two.
Joined: January 5th, 2009, 5:48 am
Posts: 1687
Location: Haven't a clue
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Re: VW Beetle 1500 pistons Because I like maths  I can tell you that a 1500cc 4 cylinder engine with a stroke of 69mm should have a bore of about 83mm. Compare that to a 602 2 cylinder with a 70mm stoke which should have a 74mm bore, although I haven't double checked that with haynes. Incidentally, using 83mm pistons with the 2cv's 70mm stroke would give a capacity of 761cc. HTH 
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| March 21st, 2010, 12:39 am |
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Rhythm Thief
Firing on two.
Joined: March 10th, 2010, 12:37 am
Posts: 1927
Location: Alone in my polytunnel with my pitiful competition onions
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Re: VW Beetle 1500 pistons Joolz wrote: Because I like maths I can tell you that a 1500cc 4 cylinder engine with a stroke of 69mm should have a bore of about 83mm. Compare that to a 602 2 cylinder with a 70mm stoke which should have a 74mm bore, although I haven't double checked that with haynes.Incidentally, using 83mm pistons with the 2cv's 70mm stroke would give a capacity of 761cc. HTH You're absolutely right. I wonder how the chap in the link in Neil's post above managed to mate them to the crankcase?
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| March 21st, 2010, 2:23 am |
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Russell
Firing on two.
Joined: November 29th, 2008, 10:05 pm
Posts: 9259
Location: West Sussex, U.K.
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Re: VW Beetle 1500 pistons I assume the crankcase is modified? I can't see it being a simple swap but I also wouldn't have though it'd be beyond the capabilities of a good machining firm.
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| March 21st, 2010, 9:12 am |
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Sean
Firing on two.
Joined: April 22nd, 2009, 11:06 pm
Posts: 3684
Location: Ecosse
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Re: VW Beetle 1500 pistons I had a look at this years ago, there is also the issue of the gudgeon pin and deck height as well as the head head, studs and push rod tubes none of it impossible if you have a machine shop and too much time on your hands saw an engine once that used porche pistons think it was based on the visa, more meat on the barrel for increase in bore, but then you have to have the nickasil coating re done or have the barrel sleeved sean
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| March 21st, 2010, 11:24 am |
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