RE: bottom end

[Terry Rudd]

Ben,   All things being equal, like the re-bore was done to reasonable engineering standards etc i.e. not bored oval, good quality rings and bearings were used then it's quite reasonable to expect a good life out of a L20B series engine. Most of the L engines still on the road would have a lot more distance on them than yours and run with similar equipment as you propose to use and are going fine. The L engine is very robust especially the bottom end, valve guide wear in high mileage heads (especially A87) is about the main problem for oil usage. I still see L engines with over 300' K's on them with original bore and pistons that have been re-ringed a few times and still pulling good power without a blue cloud trailing them.   If you keep up to the recommended service intervals, i.e. don't flog it when cold etc it should run well for a very long time. I wouldn't bother about the oil cooler for street use as it can cause more problems than it's worth. I recommend that you spend the money on a good 3 core radiator and thermo or fluid coupling fan and you'll have more cooling than the engine requires even out in the bush.   With your suspension/body etc rebuild - plan it well in advance especially as you wish to turbo engineer the car, it's far more cost effective to plan it right first time and even if the turbo doesn't happen, the driving pleasure of a car capable of handling the power of a turbo is well worth the effort. There is a huge amount of expertise and experience to give good advice on this list.   regards Terry -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ben Sent: Friday, 1 March 2002 5:09 PM To: [EMAIL PROTECTED] Subject: bottom end just wondering if my 15,000km old rebuilt l20b bottom end (everything standard, 1mm oversize nothing balanced) would be happy if i stick a ported closed a87 (~9.8:1) with twin 40's and a 72d cam. wont be reving it over 6k, and i was thinking of putting a small-ish oil cooler on it, i dont really wanna have to build a whole new motor as i'd rather spend the money on other things like suspesion, paint etc, as it will eventually get a turbo import. comments please??   cheers ben --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ --------------------------------------------------------------------- --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ ---------------------------------------------------------------------