garage19
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| posted on 21/4/08 at 02:04 PM |
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Propshaft angle? BEC
Do you front engined BEC guys mount the engine with the output shaft directly inline with the diff input?
If so this means that the engine is quite far over in the nearside of the engine bay??
I am about to drop a zzr1100 engine in my brother in laws chevette and am just wondering if i can centralise the engine to help with exhaust clearance
and run the first part of a two piece prop at a bit of an angle instead of straight??
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matt_claydon
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| posted on 21/4/08 at 02:08 PM |
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Nothing wrong with an angled propshaft, as long as the sprocket adapter and diff input flange are perfectly parallel. I believe most BECs have the
engines well over to the passenger side.
Plenty of photo archives here to check out!
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garage19
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| posted on 21/4/08 at 02:11 PM |
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I know you are supposed to run them a few degrees off to help the bearings but how many degrees max?
Can anyone point me to any photos?
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David Jenkins
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| posted on 21/4/08 at 02:21 PM |
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I don't know about the max angle, but I have seen 3 degrees as a recommended value.
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garage19
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| posted on 21/4/08 at 02:36 PM |
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Sorted that engine yet David? I could do with a ride in a locost to get my enthusiasm for mine back.
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matt_gsxr
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| posted on 21/4/08 at 02:37 PM |
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popular question!
link
My conclusion from all that is:
1) Make face of diff parallel to face of prop-adapter.
2) Put diff to centre bearing perpendicular to diff.
3) Minimise the angle if you can, but 5degrees is alright.
Generally your degrees of freedom when putting the engine in are pretty limited. What I mean is the height is fixed, and the exhaust manifold to
top-rail is always a worry.
Oh! just re-read the question, I guess top-rail isn't an issue! Make sure those headlamps don't fall out though, I used to have one of
those chevettes (first car)
Matt
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David Jenkins
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| posted on 21/4/08 at 03:18 PM |
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quote:
Originally posted by garage19
Sorted that engine yet David? I could do with a ride in a locost to get my enthusiasm for mine back.
Very, very, VERY nearly!
Just got to assemble the filter box and spray some VHT paint on the exhaust manifold where I've welded the sensor boss.
I may be bothering you very soon...
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ReMan
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| posted on 21/4/08 at 05:16 PM |
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Chevette!
Is it Fibreglass?
850kg standard, how much can you get it down too?
V8's are more common in those 
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ChrisGamlin
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| posted on 21/4/08 at 06:44 PM |
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This is mine, not set up with a huge amount of science because I was restricted to where I could put the engine, but works fine.
 
Prop Angles
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Coose
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| posted on 21/4/08 at 07:43 PM |
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+/-7 degrees per UJ. Make sure that the UJ's aren't straihgt as this will cause flats to wear on the UJ bearings. Also, I don;t think
it's *that* critical that the flanges are perfectly parallel - they never are on a live axle set-up!
Spin 'er off Well...
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Jon Ison
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| posted on 21/4/08 at 08:37 PM |
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My engine runs parallel to the chassis rails so the output flange and diff flange are far from parallel.
7 years & 15k (recorded) hard miles later no problems to date.
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