Supertech vs Wiseco XX piston rings
#1
Supertech vs Wiseco XX piston rings
So I bought a set of supertech rings for my BP4W from fab9, however I recently read that they have lower spring tension compared to other brands or oem. Aren't the supertech and wiseco xx rings both made by NPR? Are they actually different, or just the same thing in a different box? I plan to run the motor n/a for a bit then boost it and shoot for around 250 hp. Should I toss the supertechs and get wiseco, or just run the supertechs?
#10
Damn, it would've been nice if fab9 said that on their website. Oh well. I've seen a few people on here use the sealed power rings from Rockauto. Do they hold up to boost well? Also, are all BP rings the same? Rockauto doesn't list the sealed power rings for '99 cars, but they have them under '97. Are they compatible?
#13
Damn, it would've been nice if fab9 said that on their website. Oh well. I've seen a few people on here use the sealed power rings from Rockauto. Do they hold up to boost well? Also, are all BP rings the same? Rockauto doesn't list the sealed power rings for '99 cars, but they have them under '97. Are they compatible?
Your research may vary, it was a while ago.
#14
When researching my build I read that the sealed power "total seal" rings can be a PITA to seat, and while probably offer a slightly better seal if properly seated it wasn't worth the risk for me. It's a turbo build anyways, and rings aren't necessarily the weak spot here. I just went with NPR replacement rings on my OE piston build gapped to the wider end of OE spec and it's holding up great.
Your research may vary, it was a while ago.
Your research may vary, it was a while ago.
I used the rockauto sealed power rings on my rods only build. I'm at somewhere around 15k miles and 240 kpa on a 6258 and they're doing just fine. Sealed power lists the e-615kc piston ring set for 94-97 pistons (1.5mm x 1.5mm x 3.0mm ring thickness). They list the e-635kc ring set for NB1 pistons (1.2mm x 1.5mm x 3.0mm thickness).
#16
When I look on Rockauto it lists the sizes as 1.5 x 1.5 x 3.0mm for both the '99 and '97. The sealed power rings don't show up under '99, however if I look under '00, the sealed power rings are listed with the top ring as 1.2mm, and the other three brands list it as 1.5mm. Now I'm confused lol. I measured my old rings with some digital calipers and the top rings are both 1.5mm. Should I just order the sealed power rings for the '97 since they're the right size?
#17
Yes. May have to change this to maybe. All of the 1.8 engines may use the 1.5mm, 1.5mm and 3mm thick rings. The 1.2mm upper may only be the msm. If that is the case then maybe there is another difference between the na8 and nb. I have a set of nb2 (02) pistons and rings that I thought measured 1.5. I will double check.
Last edited by LeoNA; 06-26-2020 at 09:24 PM.
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