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Author: Subject: Crankshaft Question
liam.mccaffrey

posted on 24/3/20 at 09:54 AM Reply With Quote
Crankshaft Question

Bit naughty as its not really 7 related. Is anyone aware of any production v8s with a flat plane crankshaft??





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softfeet

posted on 24/3/20 at 10:43 AM Reply With Quote
The Lotus Type 918 engine fitted to the Esprit V8 had a flat-plane crankshaft.
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coyoteboy

posted on 24/3/20 at 10:55 AM Reply With Quote
any ferrari I think?

No others from normal production V8s as it makes no sense for a normal production engine.

Why do you want a flat plane, out of interest?

[Edited on 24/3/20 by coyoteboy]






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liam.mccaffrey

posted on 24/3/20 at 11:00 AM Reply With Quote
Don't need one just having a discussion in the office about don groffs fabricated v12 he made from 2 x 1jz engine.
linky
We were wondering how feasible it would be to do a v8 from 2 x inline 4s. Flat plan crank would make it easier we figured.





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liam.mccaffrey

posted on 24/3/20 at 03:01 PM Reply With Quote
Found out that the Ford Mustang post '16 has a flat plane crank on the 5.2 Modular V8





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bigrich

posted on 24/3/20 at 03:38 PM Reply With Quote
Tvr ajp V8 has a flat plane crank







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steve m

posted on 24/3/20 at 04:19 PM Reply With Quote
Liam,

That link to the home built v12, amazing stuff, and it sounded superb!

steve





Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at




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liam.mccaffrey

posted on 24/3/20 at 04:23 PM Reply With Quote
Steve
I got onto this stuff as a result of finding out about a bike engineer called Allen Millyard. He is worth a google if you haven't seen his work.
Fabri-cobbles bike engines together to make transverse 6s, huge v twins (5l) and v12s etc. Unbelievable quality of work !!





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steve m

posted on 24/3/20 at 05:18 PM Reply With Quote
Liam

I will google Allen, sounds like an interesting guy
I really enjoy seeing stuff like this being built, way way way out of my intelligence and skill levels !!

steve





Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at




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liam.mccaffrey

posted on 24/3/20 at 05:34 PM Reply With Quote
He has a column just starting in Classic Motorcycle Magazine on grafting an extra 2 cylinders on to some 4 cylinder 80s kawasaki bike.
He is literally cutting up the crankcase with a hacksaw!! Crazy





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steve m

posted on 24/3/20 at 06:12 PM Reply With Quote
Just watched a couple of vids of his bikes, very nice and unusual stuff, I wouldn't even know were to start, let alone were to cut first !





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coyoteboy

posted on 25/3/20 at 04:32 PM Reply With Quote
I had wondered about the option of using a production V8 crank with two bike barrel sets too. I kinda concluded it would be easier to mate the two output gears from the bike shafts to a layshaft - otherwise you end up with having to put spacers in for the big ends, get your bore/shaft alignment perfect, re-cam for the crank layout etc. IT's not a huge penalty to have a final drive shaft with no complex additions.






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Simon

posted on 25/3/20 at 11:07 PM Reply With Quote
Allen Millyard is an absolute legend. No tech drawings as such, all worked out in his head and all done in his standard ish size garage
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steve m

posted on 26/3/20 at 07:04 PM Reply With Quote
Are there any vids, of him actually doing an engine enhancement, as all ive found is the end result





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