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5portsrock

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Member #: 2023
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nr Portsmouth ,Hampshire

29th Oct, 2008 at 08:46:38pm

anyone fitted bigger pushrods ? what mods are needed to fit them , block holes enlarge , head holes elongated ? if so how much ? cheers

fastcarl

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leeds/wakefield.

29th Oct, 2008 at 09:03:58pm

why would you want to

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5portsrock

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nr Portsmouth ,Hampshire

29th Oct, 2008 at 09:10:25pm

inreased stiffness and lighter weight


paul wiginton
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9 times Avon Park Class C winner

Milton Keynes

29th Oct, 2008 at 09:13:12pm

Do you mean the larger diameter hollow pushrods?
I know someone that tried them but they fowled the block and head quite badly even though the block was machined to supposedly clear them.
I wouldnt bother, you gain nothing.

Paul

I seriously doubt it!

5portsrock

122 Posts
Member #: 2023
Advanced Member

nr Portsmouth ,Hampshire

29th Oct, 2008 at 09:21:15pm

ye, similar but in titanium with carbon centres , seems that the mods must be quite extensive to clear with that diameter pushrods ! thanks for the comments

paul wiginton
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Milton Keynes

29th Oct, 2008 at 09:28:10pm




On 29th Oct, 2008 5portsrock said:
ye, similar but in titanium with carbon centres


Not heard of those ones

Paul

I seriously doubt it!

fastcarl

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leeds/wakefield.

29th Oct, 2008 at 09:33:30pm

i tried carbon pushrods 16 year s ago, they fell to pieces,
load of shite,

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Hedgemonkey

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Stu from Corwall aka Mr Jazz Piano, Love_Machine, kneegrow

29th Oct, 2008 at 09:54:37pm

The C-C bond is the strongest bond in chemistry. It is best suited to being pulled. Carbon Fibre would make brilliant pullrods, but sadly in pushrods, they are only as good as the resin which supports them, pretty much....

You could probably get some sort of very light alloy.... wikipedia alloys and look at the properties, but these would probably have a drawback like expansion.

We aren't in the days of 12000 rpm short strokes anymore, so bit overkill IMO.

Having said, I did slim polish mine slightly and lost a bit of weight elsewhere.

Bugger off, I'm getting there.

Sam

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Oxford

29th Oct, 2008 at 09:55:32pm

One of mine fractured at one end, whipped them out and put in some standard ones.

On 19th Feb, 2011 Miniwilliams said:
OMG Robert that's a big one

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