SPI pistons

[turbodrmk]

To anyone out there with turbo sleds. I did top end kit at the end of last year and havent got it back out on the snow yet. But i have been reading up on different pistons and such and am wondering if anyone is running the SPI pistons in there turbos. I put the stock ones back in but if the SPI handles more heat I am wondering if it might be worth switching over to them and possibly get a little more life out of a set of lungs.

 

[cb2honk]

I've got the same question. I've heard there are turbo specific pistons out there, just wondering if they are any different than running stock.

thanks

 

[Sled-Parts.com]

Have had a few guys use the new Hyperdryve pistons in the turbos last year with good success. The Hyperdryve piston is designed to maintains it's high tensile strength up to 700°F, which is 50% higher than a conventional cast piston.

http://www.sled-parts.com/sledparts/sledparts_engine_spi_hyper.html

 

[guidoxpress]

if your concerned about heat exspansion on your pistons...send them to Swain Tech Coatings..

they have a special coating for turbo/nitrous pistons and could "double" normal piston life...

and only $19 a piston

http://www.swaintech.com/store.asp?pid=8537&catid=19694

 

[cb2honk]

I really want to know more about these SPI pistons!! They are close to $200(ebay) cheaper than the polaris oem piston! Is there anyone out there using these in boosted application. Please share!!

 

[snowx22]

If you look at partspitstop.com you can buy oem polaris pistons for 125 per side, I haven't found any on ebay for less than about 100 per side so that is like 50 dollars a set different not 200. I'm not telling you to run one or the other, but shop around a little for pistons. Also you can get 5% off coupons from that website and get a little better deal. I guess that won't work to good if you need the pistons yesterday like most of us usually do tho. Just my .02