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 1700 Crank on 1500 balance shaft?
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beardydave
V4 Beginner

63 Posts

Posted - 05 Aug 2018 :  18:02:39 Show Profile Reply with Quote
Whats the impact of this?

More vibration im guessing, but is is too much? Car will be a road car, not a track.

melle
V4 Guru

United Kingdom
2563 Posts

Posted - 05 Aug 2018 :  18:11:34 Show Profile Visit melle's Homepage Reply with Quote
The S&R catalogue prescribes a 1500 balance shaft for a >1700 engine, so should be OK. I'm still not sure what the differences are: http://www.saab-v4.co.uk/speedball/topic.asp?topic_id=33271 I have 1700 balance shafts for sale if you insist on using one, but to be honest I wouldn't bother if you have a good 1500 balance shaft.

www.saabv4.com
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TTruckie
V4 Fanatic

United Kingdom
288 Posts

Posted - 05 Aug 2018 :  21:55:22 Show Profile Reply with Quote
I've got a 1500 balance shaft in my tuned 1700 engine and seams fine. A guy who has rallied V4s for years said he always used 1500 balance shafts.
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beardydave
V4 Beginner

63 Posts

Posted - 06 Aug 2018 :  19:32:14 Show Profile Reply with Quote
Sounds ok to me then.

I've got enough to do on that engine without buying more bits.
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Woody
V4 Guru

United Kingdom
2413 Posts

Posted - 06 Aug 2018 :  21:09:49 Show Profile Reply with Quote
The Competitions Dept recommended the 1500 balance shaft to be used in 1500 and 1700 rally variants. See the Tuning Guide.
I used to have a tuned 1730 motor and it too had the 1500 balance shaft.
Just to confirm what has already been suggested.

Edited by - Woody on 06 Aug 2018 21:12:25
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Jon
V4 Beginner

France
77 Posts

Posted - 05 Oct 2018 :  14:23:53 Show Profile Visit Jon's Homepage Reply with Quote
I've never heard of there being separate balance shafts for each size of engine. Knowing Ford, they commonise where thay can.

Jon
http://www.dutton.co.uk/saab/
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melle
V4 Guru

United Kingdom
2563 Posts

Posted - 05 Oct 2018 :  14:30:04 Show Profile Visit melle's Homepage Reply with Quote
http://www.saab-v4.co.uk/speedball/topic.asp?topic_id=33271

www.saabv4.com
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