Piston options?
03-03-2010, 12:23 AM
#16
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Mahle coating now is called Ferroprint, for the Alusil blocks. It's still an iron based coating but the process has been made more environmentally friendly.
03-03-2010, 04:36 AM
#17
Nordschleife Master
Guys,
What are your opinions of the pistons currently available to us? I did a search but the old threads don't talk about much except Mahle and JE. I'm in need of a set of 100.5 and would like to know peoples experiences. This is my limited knowledge:
JE - Best price but they use 2618 alloy requiering more clearance resulting in piston slap.
Weisco - I don't know much about them.
Wossner - 4032 alloy. Good pricing. Seem to be popular with the 911 guys.
Mahle - 4032 alloy. Pricy! Considered the best on the market? Paying for the name or superior design?
Thanks!
What are your opinions of the pistons currently available to us? I did a search but the old threads don't talk about much except Mahle and JE. I'm in need of a set of 100.5 and would like to know peoples experiences. This is my limited knowledge:
JE - Best price but they use 2618 alloy requiering more clearance resulting in piston slap.
Weisco - I don't know much about them.
Wossner - 4032 alloy. Good pricing. Seem to be popular with the 911 guys.
Mahle - 4032 alloy. Pricy! Considered the best on the market? Paying for the name or superior design?
Thanks!
Mahle's are as proven as can be, but there's a growing list of engines with Wössner alusil pistons so they look like a better and better alternative. Good price plus you have the option to change the design.
I just received my Wössner alusil 9.5:1 compression 16v 968 pistons with additional Swaintech Gold Coat thermal barrier coating. Looks good
03-03-2010, 07:59 AM
#19
Nordschleife Master
A sleeved engine can run any regular piston so the choices are "unlimited". I would go for a piston recommended by the company installation the sleeves. You want to keep the number of suppliers in this area to the minimum and the company doing the sleeves would know what piston spec's to use and should be the ones dealing with the piston company (to reduce future headaches on your end).
03-03-2010, 08:16 AM
#20
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A sleeved engine can run any regular piston so the choices are "unlimited". I would go for a piston recommended by the company installation the sleeves. You want to keep the number of suppliers in this area to the minimum and the company doing the sleeves would know what piston spec's to use and should be the ones dealing with the piston company (to reduce future headaches on your end).
this is the "one throat to choke" management concept and it is a really good idea when taking on a complex project.
03-03-2010, 08:40 AM
#21
Thanks Chris & Duke,
I am thinking of buying a sleeved motor that uses JE's and needs alittle refreshing, which is the reason for the question. Duke, any info on that thing I PM'ed you about yet?
I am thinking of buying a sleeved motor that uses JE's and needs alittle refreshing, which is the reason for the question. Duke, any info on that thing I PM'ed you about yet?
03-03-2010, 09:11 AM
#22
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You can (usually) just do a very minor cut and hone just to clean up the bores if they are worn/tapered.
You can use any piston you want with the sleeved motor – but make sure you get the skirt clearance info.
When I do the work I won’t bore the block until I have the pistons in hand so I can verify the dimensions.
BTW – do you know who sleeved your block originally?
You can use any piston you want with the sleeved motor – but make sure you get the skirt clearance info.
When I do the work I won’t bore the block until I have the pistons in hand so I can verify the dimensions.
BTW – do you know who sleeved your block originally?
03-03-2010, 01:04 PM
#24
Drifting
A sleeved engine can run any regular piston so the choices are "unlimited". I would go for a piston recommended by the company installation the sleeves. You want to keep the number of suppliers in this area to the minimum and the company doing the sleeves would know what piston spec's to use and should be the ones dealing with the piston company (to reduce future headaches on your end).
Now, lets put whose piston is better to bed. It's all about the build, and what should be used for your application. All the top forged piston manufacturers make a great product. A good builder will use what is best for your particular application.
