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Author Topic: Big bore 2.2  (Read 3889 times)
GP
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« on: September 05, 2010, 02:46:39 pm »

Does anyone have any experience, information or thoughts on the maximum cubic capacity or dimensions a 2.2 block could be bored out to safely without imminent failure?
I am intersted in as big as possible and sourcing pistons accordingly.

Thanks,

GP
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Anders Dinsen
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« Reply #1 on: September 05, 2010, 03:59:17 pm »

Why, Graham, oh why! Do you really NEED any more power, my friend?  Tongue
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
'08 Smart Fortwo 0,8 cdi
GP
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« Reply #2 on: September 05, 2010, 05:30:19 pm »

Why, Graham, oh why! Do you really NEED any more power, my friend?  Tongue

Anders you haven't seen the size of my stomach have you!  Cheesy

Graham
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Anders Dinsen
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« Reply #3 on: September 05, 2010, 07:24:45 pm »

Anders you haven't seen the size of my stomach have you!  Cheesy

Laughing out loud!! Grin No, I have to admit no!
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'82 Murena 2.2 prep 142
'01 Grand Espace 24v
'08 Smart Fortwo 0,8 cdi
michaltalbot
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« Reply #4 on: September 07, 2010, 12:12:50 pm »

Muhehe, I had the same idea some time ago Grin There is a company, which is selling forged pistons for cca 250,-Eur/set. To buy forged pistons for Murena is so expensive, so I though about to extend my cylinders and use something available. The biggest problem is that I can't remember the name of the company - their website  Sad Roll Eyes
I must to meet the man who told me this info before...

But I found the result in my PC:
Murena 2,2 - 91,7 x 81,6 = 2155 ccm, r = 45,85 mm
Opel Manta - 92,5 x 81,6 = 2192 ccm, r = 46,25 mm
BMW M3 2,5 - 95,8 x 81,6 = 2352 ccm, r = 47,9 mm
Subaru Huh - 98,0 x 81,6 = 2461 ccm , r = 49 mm

I think that Manta pistons will be easily available and that is the maximum bore which could be safe too...?
« Last Edit: September 07, 2010, 12:15:18 pm by michaltalbot » Logged

jhan
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« Reply #5 on: September 07, 2010, 03:44:08 pm »

Look up this page; it is very good for searching new non original pistons.
You might need to make room for circlips to ensure the rod.
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jhan
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« Reply #6 on: September 07, 2010, 03:45:29 pm »

Maybe the link would be a good idea.
http://www.motorenteile.mahle.com/eLIZA/mahle/query/product/kolben/byParams
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LarsB
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« Reply #7 on: September 07, 2010, 09:56:59 pm »

Take a look at this  Grin

http://www.505turbo.com/forum/index.php?showtopic=1327

and this

http://www.505turbo.com/forum/index.php?showtopic=1742
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GP
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« Reply #8 on: September 08, 2010, 09:22:52 am »

Thanks for the feedback gents. LarsB hyperlinks are particularly interesting, which lit a 200W lightbulb in my head big time!

I think Bean is trying to create a "Stroker Engine" using the existing crank offset ground with different connecting rods to increase the stroke length and thus displacement. If so then this hyperlink below is also interesting reading. The advantages are that it is ideally suited for low revving engines giving an increase in torque, which would be perfect for the Murena engine.

http://uk.ask.com/wiki/Stroker_Kit

My one stop local engine and head shop for such a project would be:

http://www.ctmperformance.co.uk/

I shall carry on studying and investigating.

GP


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krede
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« Reply #9 on: September 08, 2010, 12:09:23 pm »

Since someone else brings up the Opel manta (I love them).
The displacement of the 4 cylinder CIH can be upped to 2800cc!!!, but by far the most usual layout is 2.4.
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macaroni
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Murena and Multipla - I like it 3 abreast!


« Reply #10 on: September 12, 2010, 08:26:09 pm »

Anders you haven't seen the size of my stomach have you!  Cheesy

Laughing out loud!! Grin No, I have to admit no!

You haven't seen his latest car either!
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michaltalbot
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« Reply #11 on: September 23, 2010, 11:13:03 pm »

I remember myself the link for pistons  Grin : http://www.wiseco.cz/tab/automobily.htm
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