bigpig
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| posted on 29/10/08 at 09:10 PM |
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Engine mount rising plates
I've got my exhaust on the Indy now (pinto engine) , but the nbr 4 pipe is a tight fit against the chassis member.
Rather than hack the tube (tried bending it but can't) I thought of one of two options:
A) flatten the bottom of nbr 4 pipe to give a bit of clearance
B) make up some 5-5mm spacer plates between the engine mounts and the mount rubbers to raise the whole engine 5-6mm and give just enough room to get
exhaust wrap under. These would be the same surface area as the MK mount rubbers.
Anyone had a go at this before, or spot something obviously stupid about it that I've missed?
I expect the end of the gear box may pitch down slightly but I'm hoping with just a 5-6mm lift the result won't be too much to worry
about.
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Stuart_B
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| posted on 29/10/08 at 09:13 PM |
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hi, i have lifted my engine one side and put spacers under the engine mounts to clear chassis rail and body work. by about 6-8mm. it seems to be fine,
not throught the sva yet or on the road but the test drive was ok.
thanks
stuart
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bigpig
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| posted on 29/10/08 at 09:36 PM |
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Cool.
I'm using GBS exhausts from a Zero. Not bad as stainless steel pipes & can go for £245. Just that nbr 4 pipe could do with a slight
revision.
If I could get it chopped and moved that would solve the problem, but I think that may be a bigger PITA than just moving the engine slightly.
I think your idea of just one spacer should work well as it will pitch the pipes even higher for a 6mm spacer.
I guess I could loosen off the gearbox mounts slightly then do them up again to take any stresses off them.
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nick205
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| posted on 29/10/08 at 10:36 PM |
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Just to clarify, are you building an MK with MK supplied engine mounts and exhaust? (If so then you shouldn't have that problem)
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bigpig
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| posted on 29/10/08 at 11:20 PM |
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No, MK mounts, but a GBS Zero exhaust system.
I would suspect that the zero mounts the engine slightly higher, by a few mms. I could get the exhaust system modified, but if a simple riser plate
will do the job without any detremental effect then thats what I'll go for.
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indykid
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| posted on 30/10/08 at 11:22 AM |
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plates will be fine
tom
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bigpig
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| posted on 30/10/08 at 08:19 PM |
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Cool. I've ordered 4, 6mm stainless plates the same dimensions as the rubber mount.
That allows sufficent exposed thread + if 6mm is sufficient then I'll leave it at that.
I have been offered for them to see what they can do with the pipes, but if I start getting them bent and cut I don't want them looking a bit
crappy as they look rather nice as is....and on top of that, if I go over to GBS I know I'll end up comming home with a bike carb conversion kit
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bigpig
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| posted on 31/10/08 at 06:01 PM |
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I was thinking also about using the sierra rubber mounts. They would give a 40mm rise over the existing rubbers.
Assuming (not measured yet) a total length between the shock mounts and the end of the gearbox of 1 meter that would give a pitch of approx 2.3
degrees which I would think on the grand scale of things is near to SFA until it starts going at silly speeds.
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