crank from 525e question

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bigdek
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Post Mon Aug 08, 2005 4:36 pm

Does it matter what year of car its comes from for the 2.7 conversion
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chu346
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Post Mon Aug 08, 2005 5:37 pm

No.
Widge
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Post Mon Aug 08, 2005 5:42 pm

The cranks are all the same, the year may only affect the car if it is an 87-88 super eta, in which case the pistons and the head are different to normal eta's. These super etas have very similar piston and combustion chamber shapes to a 2.5 so they make good 2.7's
bigdek
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Post Mon Aug 08, 2005 5:53 pm

sweet just bought 1 for Ԛ£30 :cool:
Widge
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Post Mon Aug 08, 2005 5:56 pm

Damn you :x I thought I had the cheapest ETA crank in the land!!!!!!!!!!!!!! :lol: :wink:

What's the plan with it, cos it won't just bolt in ! :mad:
bigdek
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Post Mon Aug 08, 2005 6:32 pm

Not sure yet m8.

New it was a bargain so scooped it immediately.

thinking of buying another sport or an se thats needing work done to it and use the head and block , 320 rods , shrick cam ,bbtb, zone chip , manifold , exhaust.

As i said not sure though as i'm just gathering info on what i need and how to do it.

Not in a hurry so hopefully can pick up a few more bargains and keep the cost down :)
Widge
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Post Mon Aug 08, 2005 7:23 pm

You'll need to deck the block by 3mm (approx) and have the skirts of the 2.5 pistons machined so they clear the counterweights on the crank. And you'll need a vernier pulley to set the timing right after you have decked the block.
bigdek
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Post Mon Aug 08, 2005 7:38 pm

yeah read that somewhere already m8 :)

Not too big an isssue though
Widge
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Post Mon Aug 08, 2005 7:40 pm

I have been told by my local machine shop that machining pistons it not cheap as they are quite fiddly and require a lot of setting up so they are all identical.
bigdek
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Post Mon Aug 08, 2005 7:48 pm

got a m8 who is a cnc turner so he can do that bit for me
Widge
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Post Mon Aug 08, 2005 7:53 pm

Lucky bugger :cry: