PoorManzImpreza Posted July 30, 2007 Share Posted July 30, 2007 Hey Guys 'n' Gals, Any recommendations for good aftermarket main and con. rod bearings for turbo block? I can't figure why genuine turbo con. rod bearings are so arse expensive! turbo 12108AA090: MSRP $250.00 wtf? NA 12108AA000: MSRP $92.00 I mean I know they need to be stronger but damn... Kaz Link to comment Share on other sites More sharing options...
Gloyale Posted July 30, 2007 Share Posted July 30, 2007 Hey Guys 'n' Gals,Any recommendations for good aftermarket main and con. rod bearings for turbo block? I can't figure why genuine turbo con. rod bearings are so arse expensive! turbo 12108AA090: MSRP $250.00 wtf? NA 12108AA000: MSRP $92.00 I mean I know they need to be stronger but damn... Kaz As far as I can tell, from specs and from experience tearing into them, there is no difference in bearings at all. All journals are the same size, connecting rods and wrist pins are the same. Buy the NA stuff. It's the same. Link to comment Share on other sites More sharing options...
PoorManzImpreza Posted July 30, 2007 Author Share Posted July 30, 2007 They share all dimensions and tolerances but they are not made of the same material.. The turbo crank shaft is also a different part number..and the euro turbo crankshaft is even different than usdm..So I'm a bit concerned about just slapping the NA bearings in and calling it done..one does not want to go back into a freshly build block anytime soon, afterall Kaz Link to comment Share on other sites More sharing options...
erik litchy Posted July 30, 2007 Share Posted July 30, 2007 the ones on my n/a were some sort of aluminum alloy. im sure you can find some parts house that carries equally good bearings that the turbo comes with for less mioney. Link to comment Share on other sites More sharing options...
nipper Posted July 30, 2007 Share Posted July 30, 2007 Turbo connecting rods can handle the stresses of high heat and power. You might get away with using a N/A rod, but i wont recomend it. ALso its rare to have to replace all the connecting rods. You can replace just the one. Its not a big deal to balance the rods. Remember for every low cost item you use during a rebuild, the odds of doing this all again in the future goes up significantly. Cost may reflect availability too. nipper Link to comment Share on other sites More sharing options...
Gloyale Posted July 30, 2007 Share Posted July 30, 2007 Turbo connecting rods can handle the stresses of high heat and power. nipper They are identical to NA rods. There is no difference. I'm sure the NA bearings can handle the extra 20 HP of the turbo motor. I'd like to know where you even get the info that they are a different bearing? Comparing them side by side, I can find no difference at all. They appear to be made of the same material. As long as the journal dimensions are the same, I don't know why there would be any difference at the crank. Remember, just cause subaru used a different part #, doesn't mean there is a difference between the parts. Different # were assigned to parts for each model in large part to make inventory management for the factory easier. (10,000 XTs this months, so 10,000 of part # so n so. 20,000 GLs, so 20000 of part # such n such. Even though they are the same part) Link to comment Share on other sites More sharing options...
beataru Posted July 30, 2007 Share Posted July 30, 2007 Just forge it and balance the crank up to 10000 and have it rev to about 9k and post a video.... is that easy enough.... Link to comment Share on other sites More sharing options...
PoorManzImpreza Posted July 31, 2007 Author Share Posted July 31, 2007 They are identical to NA rods. There is no difference. I'm sure the NA bearings can handle the extra 20 HP of the turbo motor. I'd like to know where you even get the info that they are a different bearing? Comparing them side by side, I can find no difference at all. They appear to be made of the same material. As long as the journal dimensions are the same, I don't know why there would be any difference at the crank. Remember, just cause subaru used a different part #, doesn't mean there is a difference between the parts. Different # were assigned to parts for each model in large part to make inventory management for the factory easier. (10,000 XTs this months, so 10,000 of part # so n so. 20,000 GLs, so 20000 of part # such n such. Even though they are the same part) thanks for your comments, normally I'd agree with you but this is a distinction across all L-series and XTs irregardless of year between turbo and N/A this can't be attributed to lot differences so u see my concern...anyway I'm hoping I can find something aftermarket that might be even cheaper than the n/a bearings, cuz they ain't cheap either...I know I know I'm cheaping out..meh 250 is the same price as what I got the entire engine for.. Link to comment Share on other sites More sharing options...
nipper Posted July 31, 2007 Share Posted July 31, 2007 thanks for your comments, normally I'd agree with you but this is a distinction across all L-series and XTs irregardless of year between turbo and N/A this can't be attributed to lot differences so u see my concern...anyway I'm hoping I can find something aftermarket that might be even cheaper than the n/a bearings, cuz they ain't cheap either...I know I know I'm cheaping out..meh 250 is the same price as what I got the entire engine for.. google subaru connecting rods. I found performance and turbo ones for the 2.0 and 2.5, but then i stopped looking. You can always email any of thoe suppliers for those and see if they know of sources. nipper Link to comment Share on other sites More sharing options...
Gloyale Posted July 31, 2007 Share Posted July 31, 2007 I went out to the shop and compared the bearings form the Turbo and N/A blocks. It does seem that there is a slight difference in the composition of the base Material. The bearing surfaces both had the same Aluminum Alloy look to them. The NA ones appear to be all one piece, The turbo ones have a face and a backing. The face appears to be the same alumninum, but the base is of a slightly more bronze appearing metal. At any rate they are excactly the same in size and fit. Unless you are going to be adding horsepower to the motor, I think they could handle the 20 hp difference. Remember Turbo and Non-turbos used different types of Headgaskets originally? Subaru now specs the same Head gasket for either, superceding original part #s. Likely the same in this case. I found no differences between the cranks, no marks or distinct features. Same size journals to the thousands. Connecting Rods are the same. Identical markings and Journals, and weights(relatively) Link to comment Share on other sites More sharing options...
86BRATMAN Posted July 31, 2007 Share Posted July 31, 2007 Been doing a little browsing. Here is some main bearings. http://www.prostreetonline.com/oem/wizard.asp?year=1988&make=SU&model=LOY-4WDT-001&category=A&part=Main+Bearing+Set Link to comment Share on other sites More sharing options...
Gloyale Posted July 31, 2007 Share Posted July 31, 2007 That website lists the same bearing set for Turbo and Non-Turbo. I really think it's a case of 2 different orignial parts being superceded by a single part. Improvements in Bearing manufacturing and materials(not to mention synthetic oil) mean that any new set of EA82 Main bearings will stand up fine to 110 HP. (less than a new Corrolla, do you think they have fancy special bearings?) Link to comment Share on other sites More sharing options...
beataru Posted July 31, 2007 Share Posted July 31, 2007 So it says Leone and Loyale, I know that Loyale is our know D/GL series but if it says Leone can those parts fit on my GL-10???? I'm not new to the scooby world but, I am far from an expert on there names in different countries and such.... I would love to forge up an EA-82!!!! (if I had a billion dollars) Link to comment Share on other sites More sharing options...
PoorManzImpreza Posted July 31, 2007 Author Share Posted July 31, 2007 Turbo and NA connecting rod bearings are different. Main bearings are the same going right through ea81-ea82. I do agree however that aftermarket bearings listed for both turbo and n/a might be as good as the oe turbo bearings.. I don't know this as fast so..who knows? Anyone know where I can get .25mm over clevite 77 rod bearings from?Rockauto lists std..good site btw has mucho subaru stuff Kaz Link to comment Share on other sites More sharing options...
86BRATMAN Posted August 1, 2007 Share Posted August 1, 2007 beataru, yes as long as its an 84-up leone. 84 Began the ea82 series for japan, and other markets. That is what they are called there Link to comment Share on other sites More sharing options...
beataru Posted August 1, 2007 Share Posted August 1, 2007 ok thanks, now I can feel more comfortable ordering parts off of website.... and NOW i have a greater selection of Semi- boltons!!! Link to comment Share on other sites More sharing options...
Ross Posted August 1, 2007 Share Posted August 1, 2007 THe only real difference in operating conditions between turbo and non turbo bearings is temperature - the turbo engines do run with higher oil temperature. The force on a conrod bearing caused by the combustion is actually quite small compared to the force required to accelerate the rod and piston, so you don't need to worry about that. I would imagine that the N/A ones available would cope with the small amount of extra heat just fine. Link to comment Share on other sites More sharing options...
RelicGL Posted August 1, 2007 Share Posted August 1, 2007 and now, for something completely different. that re-ring kit looks interesting. Rods, mains, gasket set and rings. Link to comment Share on other sites More sharing options...
beataru Posted August 4, 2007 Share Posted August 4, 2007 hahah montey python.... ha.... hey Buy that ea-82 forged turbo kit for me and I will even be your friend!!!! and I'll tell you how it works out too! Link to comment Share on other sites More sharing options...
GLCraig Posted August 4, 2007 Share Posted August 4, 2007 Anyone know where I can get .25mm over clevite 77 rod bearings from? They do show up on ebay, you're just going to have to look about once a week for them. Link to comment Share on other sites More sharing options...
Gloyale Posted August 4, 2007 Share Posted August 4, 2007 Anyone know where I can get .25mm over clevite 77 rod bearings from?Rockauto lists std..good site btw has mucho subaru stuff Kaz http://cgi.ebay.com/ebaymotors/SUBARU-EA82-1-8-XT-LOYALE-TURBO-BEARINGS-CB1467AL-50_W0QQcmdZViewItemQQcategoryZ33619QQihZ014QQitemZ330094430023QQrdZ1QQsspagenameZWD1V That listing is for .50mm under. But this seller lists many sizes, conact then and I'll bet you can get .25 Link to comment Share on other sites More sharing options...
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