| Author |
Message |
krusher
Samba Member
Joined: September 24, 2002
Posts: 7652
Location: europe
|
 Posted: Wed Mar 22, 2006 10:58 am Post subject: Stroking a 36hp |
 |
|
Hi, In my barndoor at present I have a oval 36hp engine, then OG bus engine is sitting siezed in my garage I would like to rebuild this engine for the bus with some modification for a little extra power, so am lookinf at stroking it a little. I know okrasa made a 69.5mm crank for there TSV and empi mad a 6mm over stock stroked crank, but I have little to no chance of getting one of them.
I remember reading somwhere a 356 crank is a possible, does anybody know details.
 |
|
| Back to top |
|
 |
RIS
Samba Member
Joined: December 18, 2003
Posts: 3043
Location: Youngstown, Ohio
|
| Posted: Wed Mar 22, 2006 5:13 pm Post subject: |
|
|
If you know of a GOOD crank grinder they should be able to weld and offset grind your current crank for more stroke, if you can find rods with a smaller big end diameter you can gain more stroke when offset grinding.
_________________
Richard Sedoris - VW Performance & Machine - Youngstown, OH
http://rismachine.tumblr.com/
YouTube: https://m.youtube.com/channel/UCfTBCG4I61iVm_ROc8OAuOQ
Instagram: @rismachine |
|
| Back to top |
|
|
GDOG57
Samba Member
Joined: March 19, 2006
Posts: 1065
Location: Gilbert,Arizona
|
| Posted: Wed Mar 22, 2006 7:01 pm Post subject: |
|
|
A porsche 356B crankshaft has 74mm stroke and should work.You will have to use porsche 912 rods also.Pistons from a '84 or so Harly-Davidson sportster,Kolbenschmidt 77mm.This will net you 1378cc. You might also want to port and pollish heads and use 1600 valves.Hope this helps you out.  |
|
| Back to top |
|
|
sammyphsyco
Samba Member
Joined: August 07, 2005
Posts: 1093
Location: Terry Cloyd's neighbor
|
| Posted: Wed Mar 22, 2006 7:56 pm Post subject: |
|
|
| GDOG57 wrote: |
| Pistons from a '84 or so Harly-Davidson sportster, |
Which year, that was a transitional era for HD from trouble head to evo.
http://www.aircooledresearch.com/ This guy sells B piston's in 88.5 mm for 90$, piston's only no cylinders. Says he builds sroker 36 hp's.
_________________
| sammyphsyco wrote: |
| Your just jealous the voices are talking to me |
|
|
| Back to top |
|
|
GDOG57
Samba Member
Joined: March 19, 2006
Posts: 1065
Location: Gilbert,Arizona
|
| Posted: Wed Mar 22, 2006 9:52 pm Post subject: |
|
|
| 1984 |
|
| Back to top |
|
|
krusher
Samba Member
Joined: September 24, 2002
Posts: 7652
Location: europe
|
| Posted: Thu Mar 23, 2006 12:50 am Post subject: |
|
|
| GDOG57 wrote: |
| A porsche 356B crankshaft has 74mm stroke and should work.You will have to use porsche 912 rods also.Pistons from a '84 or so Harly-Davidson sportster,Kolbenschmidt 77mm.This will net you 1378cc. You might also want to port and pollish heads and use 1600 valves.Hope this helps you out. |
Interesting combo, thats 74 is a hefty stroke, is there alot of clearencing required and is that harley piston the equiverlant of a B stroker?
how much wider would this engine be?
Thanks |
|
| Back to top |
|
|
GDOG57
Samba Member
Joined: March 19, 2006
Posts: 1065
Location: Gilbert,Arizona
|
| Posted: Thu Mar 23, 2006 6:19 pm Post subject: |
|
|
| Yes the case must be clearanced.The engine does not get much wider,no cutting involved.The pistons are like having "B" strokers.For more info on a motor like this contact:Steve Daniel at Daniel's machine shop in Augusta Maine.Sorry i dont have his phone number |
|
| Back to top |
|
|
|
