1G Where to buy NPR pistons?

[blujeans]

I'm looking to do a rebuild on my engine this summer, seeing as my recent compression test results were pretty crap. I want to replace my pistons with NPR ones, but I can't seem to find them in stock anywhere. Are they discontinued, and if not where can I get them?

I'm looking at these ones, but I'm not too sure about their authenticity since they're off ebay: https://www.ebay.ca/itm/Pistons-Mai...outh-Mitsubishi-Turbo-2-0L-4G63T/362358697852

 

[blktalon3]

Extreme sells a stock replacement set. They’re not npr, which I don’t think they make anymore for the 1g, but I would trust extreme over eBay.
https://www.extremepsi.com/store/Topline-Pistons-w-Rings-Set-8.0-1-Mitsubishi-Eclipse-6-Bolt.html

 

[blujeans]

Will the slight bump up in the CR cause any issues with the stock ECU?

 

[DSMPT]

I'm looking to do a rebuild on my engine this summer, seeing as my recent compression test results were pretty crap. I want to replace my pistons with NPR ones, but I can't seem to find them in stock anywhere. Are they discontinued, and if not where can I get them?

I'm looking at these ones, but I'm not too sure about their authenticity since they're off ebay: https://www.ebay.ca/itm/Pistons-Mai...outh-Mitsubishi-Turbo-2-0L-4G63T/362358697852

You may just need to hone cylinders and replace only rings.
Just in case if you would need a NPR piston kit (6 Bolt Turbo, NPR Part # is 11-546) and can't find it, look for Enginetech pistons. The Enginetech part number for 6 bolt Turbo 21mm pin is P4546(4) and Ring set is C85324. Enginetech pistons should be supplied by NPR America (You see a NPR part number (11-546) is stamped on their piston). But I can't be 100% sure if their ring set is also supplied by NPR or not.

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[1990TSIAWDTALON]

Will the slight bump up in the CR cause any issues with the stock ECU?

No, it will not effect it if it is just a small increase.
If I were just doing a stock rebuild, I wouldn't be afraid of the piston/bearing combo that you were looking at as long as you inspect the items upon arrival and look at their return policy. Those are things I ALWAYS look at before a purchase.

 

[blujeans]

I asked the seller about the piston brand yesterday, and they got back to me saying that they're from Evergreen. Never heard of them before though, maybe you have?

 

[1990TSIAWDTALON]

I haven't but names are a dime a dozen.
If they spec out for a stock rebuild I'd inspect close and be fine.
I found these but you have to call.....
https://uempistons.com/i-21051-silvolite-hyper-piston-1997cc-mitsubishi-l4-1989-92-piston-set.html
.

 

[blujeans]

I haven't but names are a dime a dozen.
If they spec out for a stock rebuild I'd inspect close and be fine.
I found these but you have to call.....
https://uempistons.com/i-21051-silvolite-hyper-piston-1997cc-mitsubishi-l4-1989-92-piston-set.html
.

They got some dealers near where I live so I'll keep them in mind. Good find!

 

[1990TSIAWDTALON]

Thats is why @DSMTUNERS.COM is here!
Watch for them. I sold a set of NPR's to one of our Canadian friends that I had in stock. Topline or Silv-O-Lite are options too.
I would find one with a top coating if I could find it. Like the NPR's.
Pops

 

[blujeans]

Okay so let's say I found a rebuilt engine with ARP hardware and an MLS head gasket, but it's got 2G pistons in it and I'm still on my stock ECU. If I swap it in, would it be drivable if I took it easy on the way home and parked the car until I get ECMlink?

 

[DSMPT]

it's got 2G pistons in it and I'm still on my stock ECU. If I swap it in, would it be drivable if I took it easy on the way home and parked the car until I get ECMlink?

Yes, it would be drivable.