Mahle pistons

zadieman · Posted: Wed Feb 22, 2012 11:39 am Post subject: Mahle pistons

Sorry to have to put this here, but nothing on a search and knew you guys would be able to help out. I am going to have a stock rebuild done of my 1600 FI engine. I have one company with stock 85.5 Mahle pistons rings and barrels for only 150?? I see others getting closer to 300 for this set. What could be different?? I am scared to pull the trigger and get the wrong parts. Thanks

DarthWeber · Posted: Wed Feb 22, 2012 11:46 am Post subject:

$150 = cast, like the pistons that came from VW.

$300 = probably forged pistons.
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jfats808 · Posted: Wed Feb 22, 2012 11:52 am Post subject:

I rebuilt a FI engine for a customer up the road from me using AA's. AA's are fine for a stock rebuild if your on a budget. Shes been driving it for over a year now. You dont need forged pistons for yours if its all stock.
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mark tucker · Posted: Wed Feb 22, 2012 1:10 pm Post subject:

I would rather have the aa pistons than the steel skirted mahle ones.

D/A/N · Posted: Wed Feb 22, 2012 1:54 pm Post subject:

zadieman · Posted: Wed Feb 22, 2012 4:30 pm Post subject:

Now even more confused. Are there two different levels of Mahle piston sets??? Is there a different part number for the steel skirted ones that you are talking about?? They have AA pistons, but they are even less than the Mahle's.

miniman82 · Posted: Wed Feb 22, 2012 9:15 pm Post subject:

mark tucker · Posted: Wed Feb 22, 2012 9:23 pm Post subject:

whell where exzactly is it??? splain that. and aluminum & aluminum have the same expansion rates too dont they.the mahles cost more because there hard to get and they price gos up, Iv seen these cast mahles being sold as forged, there not.to me there junk.do they work? yes they will .are they coated as days gone by . no. are the aa's coated? all that I have seen are, but I havent seen the 85 or 87's. I have seen way tomany cracked pistons with the steel strap skirts.

kubelguy · Posted: Wed Feb 22, 2012 9:51 pm Post subject:

I heard the Mahle pistons are supplied by AA. Too bad there isn't a stock set made in U.S.A.

zadieman · Posted: Thu Feb 23, 2012 3:57 pm Post subject:

Now you guys have me even more confused.Are there correct part numbers for the correct mahle 85.5 pistons, cylinders and rings that will be the best for my stock rebuild!!!!

kubelguy · Posted: Thu Feb 23, 2012 4:00 pm Post subject:

If you call the tech guys at cip1.com they are VERY helpful.
Ask for all the choices , ask their opinions. It's fast and easy.

[email protected] · Posted: Thu Feb 23, 2012 4:23 pm Post subject:

http://vwparts.aircooled.net/Mahle-Piston-Cylinder-Set-85-5mm-x-69mm-Cast-p/311-198-069fma.htm

genuine Mahle 85.5s are excellent P&Cs.

mark tucker · Posted: Thu Feb 23, 2012 6:42 pm Post subject:

well the set I got a month ago,(cust brought to me) looked like poop and were more than 10 grams appart, ended up getting another set to make 1 set close enough to balance. the wristpin bore had a big chamfer on some and a slight one on 1 side of 2.

kubelguy · Posted: Thu Feb 23, 2012 6:48 pm Post subject:

mark tucker · Posted: Thu Feb 23, 2012 9:53 pm Post subject:

87 mahles.cast. I dont think aa is suppling mahle, although mahle has a new facilty in china.(so I have read from something mahle put out)

MURZI · Posted: Thu Feb 23, 2012 10:07 pm Post subject:

On the 2110 I just did the pistons were 9 grams apart as well...mahle forged 90.5 B's. Waaaaaay off.
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[email protected] · Posted: Thu Feb 23, 2012 10:40 pm Post subject:

there is a big price increase coming soon on the Mahle Cast 85.5s......
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mark tucker · Posted: Fri Feb 24, 2012 9:27 am Post subject:

I think he paid 2x as much for these cast ones as he should of,and were told they were forged.I would be happy to use a better aa piston over the steel struted brazilla ones.wish I would of put 90.5,s in it.but that dog wont hunt.

miniman82 · Posted: Fri Feb 24, 2012 10:21 am Post subject:

[email protected] · Posted: Fri Feb 24, 2012 10:28 am Post subject:

most people on boost make the mistake of running too much timing, and run too rich too.
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