NITTO

For future reference if anyone is doing an external pickup line on one of our pumps the thread on the pump housing is 1/2" NPT so a 1/2" NPT to -**AN adapter can be used if required.

Hi guys. Yes we have been working on this for quite some time now with very different real world results to the simplistic nature one would think of a project like this. Difference here is that we are actually doing the field testing (which is not easy on proper big HP RB engines with 2-step etc) and not releasing our product into the market without this. The fine spline drive has shown many issues on an RB engine in areas that would normally not be thought of and has also really accentuated the differences between RB and 2JZ crankshaft properties and design. First of all a significant issue stems from the process of an engine block being tunnel bored to correct the alignment of the main journal tunnel which can lead to the crankshaft sitting several thou higher than its original position in the engine block (which believe it or not can also vary block to block from the factory). The oil pump stays in the same position when bolted to the block and leads to the upper section of the spline being driven harder and loads the gear set in an ununiformed manner. There is not an acceptable clearance for an involute spline that will properly allow for this and also combine it with the further issues below. Obviously this is detrimental to the durability of an oil pump. Second to this is the harsher harmonics that are found in an RB crankshaft as compared to a 2JZ item stemming a lot from the smaller journal overlap and also on a factory RB crankshaft from the 8 counter weight design. This is also further pronounced on a stroker crankshaft and when combined with the much smaller and weaker snout of an RB crankshaft this can lead to further clearance issues and gear loading. I can't comment on how all this would come into play with the cheap sintered steel factory 2JZ gears but I can say that all this did not end overly well with our expensive nitride and treated EN Series billet steel gears in both operation & wear patterns and housing galling conditions. This is all just some information for you guys in regards to where we are at with this upgrade that we have been working hard on for so long now and is no disrespect to the gentleman designing the new pump listed. We have a new design that is currently undergoing testing that will ensure a much higher level of drive durability without worry from the above conditions but, as always with our products, won't be released until Nitto is confident that it replicates what will suit all potential variations of RB engine builds without fault. Our track record with the current design pump is still excellent but upgrades are always good! Hopeful release date will be within the first quarter of next year but this, as always, will be subject to testing results.

Big congrats Steve! Huge achievement and what a great team you have behind you. Just awesome.. So many people telling me how happy they were to see a GTR at the top of the field.

fat32gtr - Our RB26 rods do not run the oil squirter gallery from the big end like our RB30 rods do. We only use this feature on our rods where there are no oil squirters in the block for reasons mostly related to oil pressure. There is no need when the oil squirters in the block are already lubricating the pin area, cylinder bore and cooling the piston crown.

Looking forward to seeing this new reincarnation hit the pavement mate.

Appreciate the responses from everyone including Duncan, Luke, Terry and Eric. Glad some of you guys were able to take something away from what I thought also was a really good and informative night. My gripe was only with the 2x posts from the one member which I feel was uncalled for and especially from someone that should be leading by example. Everyone is entitled to their opinions but there is a time and a place. I would be stupid to think that this reflected on the rest of the SAU members and would never do so. This was night was all due to the effort of and representative of the Just Engine Management team and I don’t want to take away from this. It is awesome to see a business taking the time out to educate the public and contribute to the industry. These guys have an incredible repour in both engine tech and tuning capability and it is a pleasure to be associated with them!

Great roll modelling by a senior mod / ex-president (?) for the younger SAU members there Duncan. Some of you guys never cease to amaze me. I was asked by the great guys at JEM who are very good customers of mine, to make the trip out and give a quick presentation on our parts with the hope of maybe benefiting some of the SAU members at the Tech Night to which I obviously obliged. No big “sales pitch” just a bit of information and for me, helping out a good customer and hopefully helping out some of your members. Have actually never done something quite like this before so you might be getting a bit confused about the 4th performance somehow??? With comments like yours made on this thread I’m actually left thinking why the hell I didn’t just go home to my kids and pregnant wife the night before a public holiday instead of wasting my time and yours (luckily you were late!). It’s just good to see another moderator feeling free to say whatever they like about whoever they like despite the intentions of the individual or company. Next time the Nitto oil pump gets damaged on your race car from a rouge bolt going through it and you are stuck over the Christmas period with no way of fixing it, with only a few days left in a workshop before you have to get your car out I may have to think twice this time before driving down to the workshop, picking up your damaged oil pump, opening up our shop and getting a tech in to repair your unit, dropping the repaired unit back to you and all in my massive annual 1.5 week Christmas holiday. Maybe you forgot about this prime example of our commitment to our customers and this industry?? I dare say unfortunately, probably not. Strange comments considering your posts at the time: http://www.skylinesaustralia.com/forums/topic/349419-my-nitto-experience/?hl=%2Bnitto+%2Boil+%2Bpump+%2Bandrew Probably should have just let this go but I'm always up for a rant Anyway I would like to thank Adam, Bobby and Dean for the opportunity to showcase a few of our products and the attending SAU members for their time. The displayed vehicles were awesome and a real credit to their owners. Nitto products are not for everyone both in application and preference but that is 100% fine with me. I just hope that maybe a few members learnt a couple of things about internal components in general. I know I learnt a lot from Adam and the boys and I appreciate it. Regards Andrew.

Save me a ride when I get round to doing a trip over your way

Hi Guys. Oil restrictor sizing can be a touchy topic for us to recommend on when there will always be many factors about the engine and it's usage that we don't know about. Whilst we will always do our best to talk to those using our products and try and get an idea about their build and usage, it should typically be up to the engine builder to determine the correct type of oil restriction to the cylinder head as so many factors like usage, bearing clearances, rpm ceiling, cylinder head setup, sump setup, oil viscosity and more ultimately make this decision. We have been talking to Michael about his setup and build to help offer as best solution as we can see fit but as we have not built the engine it is a hard call. The original Sydneykid guide is a good start but every engine is different as I'm sure you can all appreciate. What works for one will not always work for another and considering a lot of shops these days that leave engine assembley to others without discussing the actual usage of the engine, the information we need is sometimes hard to get or at least questionable. PS: R31Nismoid - In our defence I'm not sure what other oil pump manufacturer would even reply to an email / take a phone call about these types of questions??

wow fatz, you're easily violated

http://www.facebook.com/nittoengineering#!/photo.php?fbid=412303072140346&set=a.234266666610655.51688.234235616613760&type=1&theater

Nah Drew. Just have a few guys let me know if anyone has questions so I can answer... No marketing crap here....

Hi Guys. Still working on the spline drive for our pumps. Was hoping to have this finished well before now but we have made several spline contour, clearance and count changes during testing and development. The field testing for this product is a nightmare also with the main test vehicle being a high HP GTR with 2 step etc and each time we change design the engine needs to be removed to allow for pump removal then installed again, then testing, then more testing, then engine / pump removal for inspection, change to new inner gear, remove collar and install new collar and so on. You get the idea. Hoping we have a final revision for testing now but I would be lieing if I gave you a finish date. As far as the housings go we have just finished casting a new housing that is very similar to the old one but is a new mould, new casting technique, new material, logo and some very slight gallery revisions. Only reason this was done was because we were having some supply issues with our current casting plant which does not fit well with our stocking promises. Pictures on our facebook page (Search Nitto Performance Engineering). Hope this sheds some light and while I'm here what's with the hate R31Nismoid??? Bit arrogant yes??? As stated many times before our pump is very different to the JUN / Greddy pump made by the same factory. Do we need to go over this again?

Hi Chris, I'm glad you have an engine builder and are not one yourself. It seems that you don't quite understand basic mechanical properties which is fine but maybe next time you might think a bit further before posting up your ill informed wisdom. Let me run through it - When you have a loaded gear that effectively driven inside by something that is larger than it (current twin flat RB inner gear design) then no matter how strong the gear is, it is still prone to failure if the drive is allowed to become a larger diameter than the ID hole in the gear. It does not matter if the gear is made from unobtainium and treated in kryptonite, it is still physically impossible for the gear to withstand the pressures being placed on it. It WILL still fail when the 2 materials are of similar nature in composition. IE: solid metal drive inside metal gear. The "documented failures" you refer were not because of the product quality, they were a result of incorrect installation. Just the same as you can't blame a failed piston that has seen too much pre ignition on the manufacturer when it was the tuners issue that he could not tune properly (or other factors that are out of the piston manufactures scope that could cause the issue). A failure is not just a failure as you so professionally put it. Nitto goes to a lot more expense than other manufactures to make these gears as strong as possible in both materials and processes used. This is fact. Have you tried emailing or calling HKS, Reimax, JUN, Greddy etc about their pumps asking where they are made, how they are made and about their failures? I would guess not and would also guess that you would not even get a reply. I'm not talking about a middleman wholesaler either that will tell you what you want to hear. It is unfortunate that manufactures face this kind of flawed information being plastered over forums these days especially when it is information that has been directly supplied and obviously misunderstood by those that have recieved it due to not really understanding what they are reading. This is why you do not see many manufactures being actively involved in forums. Too many users trying to big note themselves to the wider community as gurus when their profession is something totally unrelated and their knowledge of what they are talking about is not up to scratch. It is a real shame. This by the way does not reflect the majority of forum users. I reiterate once again - Nitto has not had any feedback on damaged gears in any way due to the product quality. ONLY due to ill fitment which was accepted by the installers in question. The "documented failuers" were documented by us and were not due to our product. Get it right next time before you suggest toward an issue being present that is not.

Something to look into for the future definitely. Totally understand going with what your engine builder is recommending. Good luck with it! I'm sure it will be well enjoyed!