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Vintage_vw_Bug Samba Member
Joined: April 20, 2014 Posts: 19 Location: California
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Posted: Sun Oct 12, 2014 1:02 pm Post subject: Building a stock 1600 w/ all new parts |
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O.K. so I am currently getting ready to build a new 1600 engine for my bug, what i want to know is if i should get any type of machining or balancing done? I don't feel right just throwing everything together right out of the box and expecting it to work perfectly. any advice would be appreciated.
here's a list of what parts i have so far
Autolinea engine case
mofoco cylinder heads stock spec.
mahle pistons 85.5
weight matched connecting rods Empi (made in china) should I be scared?
stock crank
stock dished cam |
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bugguy1967 Samba Member
Joined: January 16, 2008 Posts: 4341 Location: Los Angeles, CA 90016
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Posted: Mon Oct 13, 2014 4:33 pm Post subject: |
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Your crank, pulley, rods, pistons, flywheel, and clutch need to be sent out for balancing. The crank journals need measuring before assembly, among other parts. Is your crank a German original or some new one?
Your case needs checking and parts need mocking up to make sure things fit properly too. |
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vwracerdave Samba Member
Joined: November 11, 2004 Posts: 15303 Location: Deep in the 405
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Posted: Mon Oct 13, 2014 4:53 pm Post subject: |
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Everything must be cleaned, inspected, measured, and fondled with love. Nothing can be taken out of the package and bolted on. It is worth the cost to have the rotating assembly balanced. _________________ 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
Featured in Dec. 2001 HOT VW's Magazine page 63
Watch my racing video's http://www.youtube.com/user/okvwracer/videos |
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Brian Samba Moderator
Joined: May 28, 2012 Posts: 8340 Location: Oceanside
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Posted: Mon Oct 13, 2014 6:08 pm Post subject: |
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vwracerdave wrote: |
...and fondled with love. |
Lots of fondling. _________________ Wash your hands
'69 Bug
'68 Baja Truck
'71 Bug
'68 Camper
Only losers litter |
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bugguy076 Samba Member
Joined: December 11, 2007 Posts: 1068 Location: Dover, PA.
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Posted: Tue Oct 14, 2014 4:02 am Post subject: |
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You can gain HP even using all stock parts by balancing and smoothing out all casting blemishes on the intake and exhaust ports in the heads and end castings. You are not porting them, just cleaning them up. I would use stainless steel valves for longevity.
Even a stock enigne needs to have all the deck heigth to be as close to the same as possible so compression is even in all cylinders.
If you pay attention to every part of the engine, the gains can be a longer running, more powerful engine than you thought possible out of stock parts. |
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