peter mc Posted August 25, 2015 Share Posted August 25, 2015 For so long i have been trying to get this job from japan. Finally its going to happen bits are turning up and parts ordered. Going to be a epic build going all out 90x90 bore stroke .full work over of the old head .stay tuned Sirpent and oldmates260z 2 Quote Link to comment Share on other sites More sharing options...
mossy Posted August 25, 2015 Share Posted August 25, 2015 Awesome!!! Quote Link to comment Share on other sites More sharing options...
Moderators PB260Z Posted August 25, 2015 Moderators Share Posted August 25, 2015 Hi Pete Congratulations on securing the job of building somethng you have wanted to do for so long, must be a great feeling. I for one I am really looking forward to following the creation of what will undoubtedly be a much followed and admired build project. Cheers PB Quote Link to comment Share on other sites More sharing options...
peter mc Posted August 25, 2015 Author Share Posted August 25, 2015 Think this might be the most expensive L built lol. The head is one of the last original heads os made .and its been sitting in a shed in Japan for over 25 years lost till last year .. so looking forward to bring it back from the dead gav240z, oldmates260z and Sirpent 3 Quote Link to comment Share on other sites More sharing options...
Moderators PB260Z Posted August 25, 2015 Moderators Share Posted August 25, 2015 so looking forward to bring it back from the dead Couldn't be better hands Quote Link to comment Share on other sites More sharing options...
74zzz Posted August 25, 2015 Share Posted August 25, 2015 sweet jesus! Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted August 25, 2015 Administrators Share Posted August 25, 2015 There are no words to describe how exciting this is to see. @Peter as a side note, do you have the means to reproduce a cylinder head like this / cast it? I'm not so interested in re-making these as I would be the LY engine heads. Quote Link to comment Share on other sites More sharing options...
Gordo Posted August 25, 2015 Share Posted August 25, 2015 Awsome. Quote Link to comment Share on other sites More sharing options...
peter mc Posted August 25, 2015 Author Share Posted August 25, 2015 No copy will be made by me .. Sirpent 1 Quote Link to comment Share on other sites More sharing options...
George Posted August 25, 2015 Share Posted August 25, 2015 Well done on securing the job Peter. I'm certain you will do this engine justice. All the best. Quote Link to comment Share on other sites More sharing options...
Sirpent Posted August 25, 2015 Share Posted August 25, 2015 No copy will be made by me .. Peter Congratulations Buddy, hope this ends up being publicised across the major publications, your deserve nothing less. Cheers John Quote Link to comment Share on other sites More sharing options...
d3c0y Posted August 26, 2015 Share Posted August 26, 2015 There are no words to describe how exciting this is to see. @Peter as a side note, do you have the means to reproduce a cylinder head like this / cast it? I'm not so interested in re-making these as I would be the LY engine heads. To give you an idea Gav, the first one one cost you in excess of $80k (that was for a 2 valve straight 6). I have a foundry as a client, start saving your pennies! Quote Link to comment Share on other sites More sharing options...
nat0_240_chevZ Posted August 26, 2015 Share Posted August 26, 2015 3d scan it for for informative purposes Pete. Can be expensive, but if you have a contact can be done cost effectively. If you were here in SA I could assist/ arrange. Especially if you need to make anything if its not serviceable, or has an element complexity. our if there were to be any future failures. (which I doubt if course ) Nat0 Quote Link to comment Share on other sites More sharing options...
Riceburner Posted August 27, 2015 Share Posted August 27, 2015 Oh yeah, this is will be awesome! Quote Link to comment Share on other sites More sharing options...
peter mc Posted August 28, 2015 Author Share Posted August 28, 2015 It all starts with a good block ..trying to find a block that will go 89 mm or bigger is not a cheep experience now ..i went through 5 this week. To get 1 that will be safe at 89mm perfect for my build as im using a billet 90mm stroke crank . My goal is to crack 400hp on a superflow engine dyno at 8000 rpm .stay tuned zzzzed 1 Quote Link to comment Share on other sites More sharing options...
GongZ Posted August 28, 2015 Share Posted August 28, 2015 I make that 3359cc - nice! Quote Link to comment Share on other sites More sharing options...
peter mc Posted August 30, 2015 Author Share Posted August 30, 2015 So i have striped it all down .All oil plugs out all water plugs out and all casting marks removed internally next job is to bath it and then clearance the block for the 90mm crank and rods .then its concrete time ..lots going on Quote Link to comment Share on other sites More sharing options...
Moderators PB260Z Posted August 31, 2015 Moderators Share Posted August 31, 2015 So i have striped it all down .All oil plugs out all water plugs out and all casting marks removed internally next job is to bath it and then clearance the block for the 90mm crank and rods .then its concrete time ..lots going on Not sure I understand that reference Quote Link to comment Share on other sites More sharing options...
KatoKid Posted August 31, 2015 Share Posted August 31, 2015 Grout filling the lower part of the cylinder cooling jackets....improved rigidity. gav240z 1 Quote Link to comment Share on other sites More sharing options...
Moderators PB260Z Posted August 31, 2015 Moderators Share Posted August 31, 2015 Grout filling the lower part of the cylinder cooling jackets....improved rigidity. Thanks Quote Link to comment Share on other sites More sharing options...
Administrators gav240z Posted August 31, 2015 Administrators Share Posted August 31, 2015 Peter I imagine with a regular L-series head (say P90 for example) you already know what areas to take out and move around, port, tickle etc.. for the optimum flow based on having done so many in the past. When it comes to a complete unknown such as this engine head, with very few people having even seen 1 or worked on this cylinder head in the past, what approach to do you take to optimise flow? Do you have computer based modeling that you can rely on to help guide you? Or are you flying by the seat of your pants on something like this? Given how rare the head is, how can you be confident to know where to remove material etc..? Not questioning your skills obviously, rather interested in your approach with such a unique piece? By the way is the client located in Australia or Japan or somewhere else? Quote Link to comment Share on other sites More sharing options...
Moderators Zedman240® Posted August 31, 2015 Moderators Share Posted August 31, 2015 Don't visit the site for a while and look at what I have missed! Will you be making a video of it when its dyno time? Quote Link to comment Share on other sites More sharing options...
peter mc Posted August 31, 2015 Author Share Posted August 31, 2015 Hi gav Yes it would be a bit dangerous to just port away but i have seen the port work from os engine man and have a few good port pics and im flying over to see more in a few weeks lightmaster240z and gav240z 2 Quote Link to comment Share on other sites More sharing options...
Blue Z Posted September 5, 2015 Share Posted September 5, 2015 Let's see who wins the HP challenge! http://forums.hybridz.org/topic/119641-twin-cam-head-for-the-l6-from-derek-at-datsunworks/page-21 Good luck Peter! Quote Link to comment Share on other sites More sharing options...
peter mc Posted September 6, 2015 Author Share Posted September 6, 2015 Yes good luck to them ..im taking the os to a new level ..its going injection 55mm itb drysump 13.1 comp hand made race pipes 90mm stroke monster only one thing in mind building the most outrageous NA L motor Quote Link to comment Share on other sites More sharing options...
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