Mack Posted February 13, 2007 Share Posted February 13, 2007 anyone ever used these? I searched and found a few threads that mentioned them or wanting to use them, but no one ever gave a review? Im building a 3.1L finally and am wondering about these bearings, as they sound slick. any other suggestions besides the tried and true federal mogul or nissan OEM? thank! Quote Link to comment Share on other sites More sharing options...
BayAreaZT Posted February 13, 2007 Share Posted February 13, 2007 I have a set of Toga bearings but I haven't got around to using them yet since my current motor is holding up good. Eventually I'm gonna build up my spare motor so I'm interested in hearing some feedback too. Quote Link to comment Share on other sites More sharing options...
z-ya Posted February 14, 2007 Share Posted February 14, 2007 Why not just use Nissan OEM bearings. They are not all that expensive, considering how important they are to your build. All racers I know that run an L6 use OEM bearings. Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted February 14, 2007 Administrators Share Posted February 14, 2007 Sorry, I don’t have any info on the Toga bearings, but I definitely would NOT use Federal Mogul engine bearings, not even in my Lawn Mower. As a professional engine builder/machinist, I am always carefully scrutinizing every part during a tear down and Federal Mogul bearings have more defects and do not hold up as well as some other manufacturers. I have read FM’s quality issues is in their manufacturing process. OE Nissan bearings are pretty good, (though if you do use NISSAN, be sure to verify that they are indeed NISSAN bearings, not just cheapos that the parts counter found at the local Thrifty Auto parts store. They have been known to do that…). We primarily use Michigan/Clevite 77 bearings in ALL of our engines, from bone stock rebuilds to the 1100+ HP Twin Turbo 540 BBC Endurance Jet boat engine and everything in between. Quote Link to comment Share on other sites More sharing options...
Careless Posted February 14, 2007 Share Posted February 14, 2007 Michigan/Clevite 77 bearings in ALL of our engines, from bone stock rebuilds to the 1100+ HP Twin Turb they make them 77's for RB's ?! Quote Link to comment Share on other sites More sharing options...
jeffp Posted February 15, 2007 Share Posted February 15, 2007 I would look at your bearings for the L engine. Seems Clevite stopped making the 77 bearings a few years ago. Then they came out with the clevite 777 bearings. As I understand, and found out from Dave Robello, the 777 bearing is about the quality of the stock Nissan bearings. So you have lost about 3 thousand pounds per square inch of abuse the bearing can take. The michigan bearing will handle 6 thousand pounds per SQ inch surface perssure, the Nissan bearing about 8 thousand pounds per SQ inch, and the old 77 bearing about 11,000 pounds per SQ inch of contact pressure. So what Dave did, and myself included, was to go with the new poly coating bearings. According to Dave these parts are just about bullet proof. He said he has used these bearings a second time in a build because they were so tough and showed no signs of wear. He NEVER used clevite 77's or any other bearing two times for a build. I figure if they were good nough for Robello, then I could use them myself. They have seemed to work out well for me. I would recomment this bearing as a replacement part for the 77 bearing. I have a sample rod bearing half. I will take a pic of the part and post it when I get time. Quote Link to comment Share on other sites More sharing options...
Mack Posted February 15, 2007 Author Share Posted February 15, 2007 and where would I geta poly coated bearign? the same places that coat piston tops and skirts? just get soem stock nissan OEM bearings and go that route? sounds like a viable options! Quote Link to comment Share on other sites More sharing options...
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