Forged pistions

Technical advice Q&A

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lee-type
Posts: 47
Joined: Mon Jun 18, 2018 5:43 pm
Great Britain

#1 Forged pistions

Post by lee-type » Tue Jul 10, 2018 5:49 pm

Good evening

I am about to buy a set of pistons and then send off my block to be machined.

Are forged pistons a over priced luxury and am i just better of buying a set of pistons made by Mahle form SnG for a third of the price?
S1 OTS

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christopher storey
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Location: cheshire , england
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#2 Re: Forged pistions

Post by christopher storey » Tue Jul 10, 2018 6:38 pm

Unless you are thinking of endurance racing , or at any rate very serious racing with a much higher than standard power output, IMHO it will be a complete waste of money

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abowie
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#3 Re: Forged pistions

Post by abowie » Wed Jul 11, 2018 12:27 am

I agree with Christopher. In addition, you are best to use 8:1 pistons as machining of the block and head over the years will potentially make your compression too high with 9:1 pistons.
Andrew.
881824, 1E21538. 889457..oops
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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rfs1957
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#4 Re: Forged pistions

Post by rfs1957 » Thu Jul 12, 2018 7:52 pm

On the subject of Mahle pistons, I have very recently been sold a set (at way over market price, long story) by a "well known engine builder" - who increases the price by a further £120 by supplying, at the same time, a set of American Grants piston-rings, as they say :

We won’t sell Mahle pistons without Grants rings, as yes in our opinion the rings they supply are no good.

Be interested to hears others' opinions and experiences on this subject.
Rory
3.8 OTS Cream 877393 Built May 28th 1962
1978 Mini Van
(plus bevel and belt single-cylinder Ducatis)

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