kevwil1968 1 Posted April 25, 2016 Guys, currently putting together a turbo charged VR6, have a AAA 2.8 engine and looking to bore out to 3.0, anyone come across specialists in rearing that can bore out VR6 engines that they could recommend. Need someone reliable and good quality as I don't want to have to revisit. Quote Share this post Link to post Share on other sites
lilfuzzer 1 Posted April 25, 2016 whats the reason to go to 3.0 litre mate? Quote Share this post Link to post Share on other sites
kevwil1968 1 Posted April 26, 2016 Chris trying to get most out of AAA without compromising the integrity/reliability of engine otherwise I could have gone to R32 engine but that would have meant more conversion work, so at the moment its a 3.0 turbo with 312 front brakes, upgraded rears and 16" deep dish alloys... Quote Share this post Link to post Share on other sites
lilfuzzer 1 Posted April 26, 2016 Just seems a lot of expense to get to 3 litre You'll see 400 brake with right turbo set up even from a 2. 8 Sent from my SM-G357FZ using Tapatalk Quote Share this post Link to post Share on other sites
kevwil1968 1 Posted April 26, 2016 Problem is the 2.8 AAA had a head gasket issue so it needs doing anyway, so I took opportunity to push it to 3.0, any recommendations on specialists ? Quote Share this post Link to post Share on other sites
Jim 2 Posted April 26, 2016 I would imagine that most specialists would strongly advise against taking the engine out to 3 litre and then turbo charging it, but worth consulting with someone like Stealth Racing for their opinion. Given the sort of power you'll yield from going turbo anyway, over-boring that extra amount won't add a lot in the grand scheme of things but will surely only cause more complications regarding keeping temperatures under control, and most likely accelerated bore wear on the known weak cylinders 1 & 6. You'd surely be best off just sourcing a good, clean 2.8 block (of which there are plenty) and spending the money on just rebuilding and strenghthening that rather than spending the money on the overboring, and oversized pistons, etc. Taking the 3 litre route just doesn't seem logical, for the sort of setup you're pursuing. Quote Share this post Link to post Share on other sites