Ben m Posted October 5, 2014 Share Posted October 5, 2014 Am I right in thinking if I'm to put gte pistons in a na bottom end it would be the same cr as a std gte, also would it need the vvti piston if the bottom end is vvti or are the non vvti and vvti pistons the same? Thanks in advance Link to comment Share on other sites More sharing options...
David P Posted October 5, 2014 Share Posted October 5, 2014 (edited) N,A is 10:1 Vvti n/a is 10.5:1 N/a with tt gasket is 9.2:1 Vvti n/a with tt gasket is 9.7:1 N/A with tt pistons and n/a gasket is 9.0:1 Or thereabouts. Edited October 5, 2014 by David P (see edit history) Link to comment Share on other sites More sharing options...
Ben m Posted October 5, 2014 Author Share Posted October 5, 2014 Nice one mate Link to comment Share on other sites More sharing options...
Ben m Posted October 5, 2014 Author Share Posted October 5, 2014 Are the vvti tt pistons the same as non vvti pistons? The question being do I need vvti tt pistons in a vvti block Thanks Link to comment Share on other sites More sharing options...
David P Posted October 5, 2014 Share Posted October 5, 2014 Piston answer in first link and any other questions answered in second link. http://www.mkivsupra.net/vbb/showthread.php?313002-2JZ-NA-T-hybrid-build-(VVT-i-bottom-non-VVT-i-head)&highlight=vvti+pistons http://www.mkivsupra.net/vbb/group.php?groupid=49 Link to comment Share on other sites More sharing options...
Ben m Posted October 6, 2014 Author Share Posted October 6, 2014 Thanks David top bloke I did see the top link thread when I was searching here but missed a few bits I guess Link to comment Share on other sites More sharing options...
David P Posted October 6, 2014 Share Posted October 6, 2014 What is it you are thinking to do? Link to comment Share on other sites More sharing options...
Ben m Posted October 6, 2014 Author Share Posted October 6, 2014 I have a 2jz vvti ge and planning to turbo with 500hp in mind housed in a toyota cresta I'd like to run 1-1.5 bar hence cr questions, do you have experience with na t conversions? Link to comment Share on other sites More sharing options...
David P Posted October 6, 2014 Share Posted October 6, 2014 See my signature, I have supercharged my GE, 1.1 bar @ stock 10:1 compression, have tinkered with a few N/A-t's too. Fitting a T.T. head gasket to a GE VVTI will drop the compression to around 9.6:1 - 9.7:1 which will be fine for up to 1.5 bar. Link to comment Share on other sites More sharing options...
Ben m Posted October 6, 2014 Author Share Posted October 6, 2014 Will do I'm on tapatalk so don't see everything Thanks I think that will be the way I will go Link to comment Share on other sites More sharing options...
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