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-   -   ACL Pistons any good? (https://www.miataturbo.net/engine-performance-56/acl-pistons-any-good-62447/)

guzerone Dec 27, 2011 09:23 PM

ACL Pistons any good?
 
I'm rebuilding my engine (1.8 with 167KMiles), the head gasket blew due to a slow coolant leak in the radiator and I ended up with a bit of water in cyl 3.

Looking for piston rings, I ended up buying pistons with rings because they were cheaper than just the rings (isn't ebay wonderful..).
I was planning to re-use the stock pistons since they shgould be good enough for ~300HP and I'm not planing on making more than that.
I did buy some forged rods (there's a thread about these, $225 inlcuding ARP bolts).

The pistons I got with the rings are marked ACL, the question is, should I install the ACL pistons or the stock pistons (they're in good shape)?

I'm currently runing a GT2554R @ 13 PSI, FM manifold, 2.5" down pipe and catback, big CXRacing IC, MS1, 460cc injectors.
I got a 2-row radiator to replace the laking one and also found a 6-speed at a reasonable price (I'm on the 2nd 5-speed).
With all the upgrades, I might go with a bigger turbo, 2560 or bigger.

Renown Performance Dec 28, 2011 05:28 PM

Mind posting some pics or some info on where these ACL Pistons came from?

-Sam

guzerone Dec 28, 2011 05:54 PM

4 Attachment(s)
Got them on ebay (http://www.ebay.com/itm/ws/eBayISAPI...m=190590799447).
$36 for 4 pistons, 4 sets of rings, 4 wrist pins and 4 sets of c-clips, can't beat that price..

Renown Performance Dec 29, 2011 06:27 PM

There may be a reason they are at that price mark. I would personally not risk putting them in. Taking into consideration the damage they can do to the cylinder walls and head when they decide to blow up, they wouldn't touch my engine.

-Sam

falcon Dec 30, 2011 06:40 PM

Lol @ "can't beat the price." They are some generic OEM replacement shit cast piston. Sure they may be OK, bit why bother all that work without getting a piston you know will hold up. My supertech pistons were under $300 for a set of 4. With pins and rings.

Seefo Dec 31, 2011 12:00 AM

Seriously? $36 for pistons and rings. that's cheaper than a set of rotors. Does that make any sense to you?

Enginerd Dec 31, 2011 12:02 AM

The valve cut outs aren't even machined. R U Serious?!

gearhead_318 Dec 31, 2011 12:06 AM

The 13th chromosome is strong in this one.

falcon Dec 31, 2011 11:09 AM

To answer your original question. Use your stockers. And I would have rather bought 36$ rings cause you know they're good at least. My sealed power rings were more than that IIRC.

FRT_Fun Dec 31, 2011 11:43 AM

The "GL" on the top must mean Good Luck.

GeneSplicer Dec 31, 2011 12:56 PM

You bought 'em - hell, throw them in, boost it, then give us a range report - because them babies are gonna blow up, be sure to post pics/video. On the up side, they were only $36 so you can get another set and do it all over again!

Seriously - 59 posts on MT and you thought these would be OK?

dgmorr Dec 31, 2011 03:25 PM


Originally Posted by falcon (Post 813102)
Lol @ "can't beat the price." They are some generic OEM replacement shit cast piston. Sure they may be OK, bit why bother all that work without getting a piston you know will hold up. My supertech pistons were under $300 for a set of 4. With pins and rings.

Where did you get yours?

ScottFW Dec 31, 2011 04:04 PM

Under $300 would be a pretty crazy low price if the Supertechs were new. I paid $380 shipped from Adam at No Limit Motorsports and that was the mt.net "bro price" at the time.

dgmorr Dec 31, 2011 10:04 PM

Would these be just as bad as anything off ebay? I'm looking for lower compression OEM pistons for a budget build.

http://www.rockauto.com/catalog/moreinfo.php?pk=1808976

Savington Jan 1, 2012 02:20 AM



Normal people cannot buy supertechs for under 300.

falcon Jan 1, 2012 09:22 AM

Hehe... uh, yeah I made a boo boo. Under "400" not 300. Don't know what I was smoking when I posted that. I think I was thinking "under 400" and thinking of the number with was $360-$380 or something and then wrote 300 instead of 400.


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