200mph
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| posted on 9/4/03 at 01:35 PM |
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Engine mounts - G1 and G2
Could someone maybe clear something up for me please. The book says that the
distance between G1 and F1 along tube C should be 5 inches for the crossflow engine,
but all the diagrams show the seven inch distance (presumably because Champion used
the BMC engine). Obviously tubes G1 and G2 need to be altered if the should end up
five inches from F1 and F2 repsectively.
Should the gap be 5 inches for my crossflow engine?
Thanks to anyone who can help
Mark
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Simon
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| posted on 9/4/03 at 02:59 PM |
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I don't have the book to hand, but I'm assuming the G1/2 tubes are the inner lower engine bay tubes.
If that's the case, IIRC the book says you can vary their position according to your engine choice.
Though my chassis is 4" wider than the book, these tubes were positioned for a 1.8 CVH engine (which I subsequently threw into a skip, and
replaced with a Rover V8).
The positioning, is therefore, entirely (but within reason) up to you.
Hope this helps.
ATB
Simon
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200mph
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| posted on 9/4/03 at 04:36 PM |
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I suppose they are variable within reason, but depends on the type of engine mounts used.
However, they should ideally lie in a position where the engine mounts would spread the load
most effeiciently, perhaps 50/50 with tubes F1 and F2? Not really sure, perhaps someone with
more knowledge/expreience could let me know
cheers
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craig1410
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| posted on 9/4/03 at 09:58 PM |
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Hi,
I'm with Simon on this one having just recently fitted my G1 and G2 tubes. I basically left them out until I had an engine handy to use as a
template to see where they should best be placed. Ideally (IMHO) you want to have them under the engine mounting area of the engine block whilst still
leaving plenty of space for engine ancillaries such as starter motor and alternator etc.
My chassis is 4" wider like Simon's (we're both using RV8's) and I could have placed my tubes parallel to the centreline but
opted for a slight angle instead since it looked like it might offer better support to tube C around the footwell area that way.
Also, I elected not to place the frontmost end of G1 and G2 as close to F1 and F2 as it shows in the book so that I could weld the acute angle better.
It is about 0.5 to 0.75" along tube E towards the centreline in both cases. I should now be able to properly seam weld both tube E to F1 and F2
and then tubes G1 and G2 to E without hinderance.
Hope this helps (and makes sense...),
Craig.
ps. See my website for some piccies.
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craig1410
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| posted on 9/4/03 at 10:07 PM |
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Hi again,
Just checked my website and the pictures there don't show G1 and G2 very well. Take a look at my photo archive, I've uploaded a picture
for you. You can't miss it because it's the only one there...
Cheers,
Craig.
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