patman Posted September 1, 2014 Author Share Posted September 1, 2014 Thanks Phil mate before I put my engine back in gonna change back over to oem bearings 👍 Quote Link to post Share on other sites
H_D Posted September 2, 2014 Share Posted September 2, 2014 No they do not have to be coated but I had it done anyway Quote Link to post Share on other sites
5e colin Posted September 2, 2014 Share Posted September 2, 2014 dont forget to use the 5£ worth of plasi gauge to check clearances Quote Link to post Share on other sites
patman Posted September 2, 2014 Author Share Posted September 2, 2014 Thanks mate 👍 Quote Link to post Share on other sites
AdamB Posted September 5, 2014 Share Posted September 5, 2014 The only reason ACL suggest to inspect/replace the bearings at 25k mile is to ensure the crank remains in good serviceable condition. Remember that it is easier and cheaper to replace bearings than it is a crank!Also ACL do not make a "Race" version bearing for the E series engine, they only do OEM replacement and Duraglide. Nothing wrong with OEM bearings either. Quote Link to post Share on other sites
patman Posted September 5, 2014 Author Share Posted September 5, 2014 I was just thinking though Adam mate 25k is not a lot of mileage then having to get the crank out which means stripping the engine again to change all the bearings I take it? I'm just wondering how much Bhp is safe on oem bearings rather then acl? Quote Link to post Share on other sites
mikey4410 Posted September 5, 2014 Share Posted September 5, 2014 I wouldnt ever go anything other than the oem bearings myself Quote Link to post Share on other sites
patman Posted September 5, 2014 Author Share Posted September 5, 2014 Thinking the same Mikey 👍 Quote Link to post Share on other sites
Phil Posted September 5, 2014 Share Posted September 5, 2014 You can get "King" bearings from the states for a good price... link me wallace. Phil Quote Link to post Share on other sites
patman Posted September 5, 2014 Author Share Posted September 5, 2014 Yes please link me aswell 👍 Quote Link to post Share on other sites
AdamB Posted September 6, 2014 Share Posted September 6, 2014 (edited) I was just thinking though Adam mate 25k is not a lot of mileage then having to get the crank out which means stripping the engine again to change all the bearings I take it? I'm just wondering how much Bhp is safe on oem bearings rather then acl?It's not bhp that's the problem it's boost levels and oil clearances. The tighter the clearances the less boost you can run because in theory the rod will be pushed against the bearing which results in the wear. Too loose clearances and you will use excessive amounts of oil and have lower oil pressure. I say it time and time again, when you make an improvement in one area there's a trade off to make somewhere else, nothing can be had for free unfortunately. It's like taking a stock engine from having service intervals at every 10k miles then having the engine forged and still expecting to keep the same service schedule. When you run more power, more things need attention on a more regular basis. I'm sure Phil will know this but Spuddy with his 600bhp engine used to strip and inspect the crank and replace the bearings after every couple of race meetings. Edited September 6, 2014 by AdamB Quote Link to post Share on other sites
patman Posted September 7, 2014 Author Share Posted September 7, 2014 I know what your saying mate and I totally agree with you I suppose the moral of this topic was it recommends you change the acl bearings at 25k but with the oem bearings what come in starlets to begin with are still running fine on the cars after like 90k miles and they have upped the boost etc Quote Link to post Share on other sites
AdamB Posted September 7, 2014 Share Posted September 7, 2014 Yeah I see where your coming from. I guess its not to say that the ACL's won't last as long as OEM ones, I suspect that there's a lot of forged engines out there running the ACL bearing and have covered double their recommended interval and had no problems. Possibly just to cover ACL ass. Quote Link to post Share on other sites
patman Posted September 8, 2014 Author Share Posted September 8, 2014 Yeah it's a fair point mate I know what you mean was just asking for opinions on it 👍 Quote Link to post Share on other sites
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