_shaun_ Posted March 13, 2014 Share Posted March 13, 2014 looking to see what sorta milage people have got on there forged engines looking at one now and its got 45k on it since being forged which seems abit keen ha. also whats max boost anyones ran on stock headbolts cheers shaun Quote Link to post Share on other sites
jordan walker Posted March 13, 2014 Share Posted March 13, 2014 Ive got 0 miles and 0 boost on mine haha itchin to drive it but going to have to wait a bit longer Quote Link to post Share on other sites
AdamB Posted March 13, 2014 Share Posted March 13, 2014 Really depends how its built, but no reason why a forged engine can't do 155k miles, they do require stricter maintenence though so as long as its been looked after properly. 1.6/1.7 bar I thinks been the most on OEM headbolts. Quote Link to post Share on other sites
yaristurbo Posted March 13, 2014 Share Posted March 13, 2014 Be intrested to see if% Quote Link to post Share on other sites
fremyjay Posted March 13, 2014 Share Posted March 13, 2014 Really depends how its built, but no reason why a forged engine can't do 155k miles, they do require stricter maintenence though so as long as its been looked after properly.1.6/1.7 bar I thinks been the most on OEM headbolts.i was always under the illusion a forged lump would outlast a standard engine by far? Quote Link to post Share on other sites
Starbuck Posted March 13, 2014 Share Posted March 13, 2014 True. But you have to think it's been forged for a reason. So it can be boosted higher. If it was just run like a normal car I'm sure it would outlast a standard engine. Quote Link to post Share on other sites
Azz Posted March 13, 2014 Share Posted March 13, 2014 If it's done 45k already obviously there's no problems there Quote Link to post Share on other sites
Ryan-11 Posted March 13, 2014 Share Posted March 13, 2014 i done 25k on my old engine before it dropped a valve, some people were running 2 bar on standard headbolts back in the day before you could get arp headbolts Quote Link to post Share on other sites
shorty Posted March 13, 2014 Share Posted March 13, 2014 Mine did 10k and still looked brand new inside, as for toyota head bolts they are ok for around 1.6/1.8 with ease. But the oem spec replacements type you can buy are shit! I've lifted a head at 1bar on them back in the day lol Quote Link to post Share on other sites
AdamB Posted March 13, 2014 Share Posted March 13, 2014 i was always under the illusion a forged lump would outlast a standard engine by far?Like I say it depends on how its been built, by the time you get to 155k on any motor the piston rings will be leaking a fair amount of gas into the crankcase its worth a new set and a fresh set of bores. If you build a motor with tight tolerencing to make max power chances are it will only live a couple of a drag runs before leakage is deemed to be excessive. Quote Link to post Share on other sites
Skimmy237 Posted March 15, 2014 Share Posted March 15, 2014 Mines going to get forged. So it's ok to do high Milage on one ? Quote Link to post Share on other sites
starletgt-shady Posted March 15, 2014 Share Posted March 15, 2014 Done about 25k on mine. Not easy miles either. 1.4 bar on hybrid ct9 Quote Link to post Share on other sites
Skimmy237 Posted March 15, 2014 Share Posted March 15, 2014 How high can I run my speedvision hybrid ct9 before I knacker the turbo ? I do a lot of motorway miles aswell Quote Link to post Share on other sites
starletgt-shady Posted March 15, 2014 Share Posted March 15, 2014 Mines a speedvision and does 1.4 bar all the time still fine. Upgrading to a hybrid tdo4 soon got the whose kit ready to fit just fitting my aquamist water injection kit at the moment. Quote Link to post Share on other sites
Skimmy237 Posted March 15, 2014 Share Posted March 15, 2014 Aw ok that's good! Would you mind if I pm you some questions please dude ? Quote Link to post Share on other sites
starletgt-shady Posted March 16, 2014 Share Posted March 16, 2014 Yeh ill help if I can. Quote Link to post Share on other sites
Skimmy237 Posted March 16, 2014 Share Posted March 16, 2014 Thanks dude Quote Link to post Share on other sites
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