Hi People, I am in the mind set of performing a rebuild on the zed in the near future. in saying that i didnt neccessarily mean with the same motor. The VG30 has proven to be a moster of an engine but it also has its draw backs, like cooling and space for example. This is not to say the RB engine hasnt got problems, constantly spinning big end bearings from oil starvation and or detonation. The 2JZ has been known to crank walk on occassions but apart from that they have been classified as "BULLET PROOF". Dont shoot me just yet people as these are just ideas, and i know thi shas been discussed many times before.... What do i want to achieve: 350rwkw and above the car to be a HYBRID (i love to be different just like everyone else) Ease of working on the car Single turbo to worry about higher reving motor to cater for a bigger turbo. I would be interested in peoples OBJECTIVE views not biased. Again this is not to say the vg30 cannot do all that... It does come down to cost and time as well which are key factors here also. that aside what are peoples honest opinions? (bullet proof vest now ON) fire away people. :banned: Tezza:banned: :bash: :bash: :zlove: :zlove: :zlove: :zlove: :zlove:
I think both the RB and 2JZ have their pros and cons. But one thing I noticed right away...If money and time are considerations, don't bother trying to do a transplant. Just stick to the VG, there's alot of work getting the RB into the Z from what I've seen and I'd imagine even more work getting in the 2JZ. While the 2JZ might be "bulletproof" you could get the VG just as bulletproof for less than the cost of buying and transplanting a stock 2JZ. And the VG would be more bulletproof at the end.
The 2J is apparantly good for 600hp on stock internals My more long and drawn out opinion coming later tonight
cooling issues with the VG come only through neglect.. mine sits happily at 80 degrees with stock radiator. as for the options.... I wouldn't bother unless it's V8, or mebbe V12.
Costs are key as mentioned BUTwe also need to consider a few things here 2 turbos 2 cams 2 exhaust manis 2 sets of turbo back exhausts 2 set of external gates (this is the config i am looking at) The transplant would mean possible firewall modification, bell housing, and engine mounts straight off the bat. ECU will be purchased to suit the engine which would still require some modification to plug into dash e.t.c I have not yet done a proper cost comparison but i would assume that the savings from not doing a transplant will be overcome upon the purchase of parts? Please correct me if i am wrong.? Terry
i am possibly looking at the toyota 4.0tr v8. which fits into a GTR with no firewall modification. just custom engine mounts and 4wd transfer case. Again i am just looking at options here.. I dont think there is anything wrong with changing motors as long as the car doesn't... tezza
Terry Drop me a line mate on MSN or PM etc I have looked into a heap of options for my new race car project and come up with something that may fit the bill nicely and not cost the earth either. Its still in the Nissan stable but will be very unique to say the least. you will have to ask nicely to find out
What about a rotary Z, im not sure about the exact ins and outs of a swap but that would be different, wouldn't it? You could have something like this
I assume you mean the 1UZ engine from Toyota? If you want to go that path, try a VK45DE. Stay in the Nissan family Plus it's a better engine. Otherwise, be really different and go a Porsche 911 engine. :biggrin:
Even the SOHC and the DOHC VG30 is still good for 500hp on stock guts... Most of these glorious engine swaps people want to do are pipe dreams, but it's good to dream sometimes! I'd personally go with a single turbo setup on the DOHC, and get one big ass snail in there instead of two tiny ones. Just about every single drag car in Japan that came from the factory as a TT is converted to single turbo. With that said if time and cost is a problem, then a complete engine swap is not for you...
Mate if you are after easy access and to work on it! After seeing the Drift Zed how about an LS1 with a Super charger or turbo. Cheap, easy power and torque plus heaps of room and easy to work on, sounds good too!. Love to Zed VG30DETT but if I was to do a conversion thatd be it! MattB
VK was based on the VQ. They added titanium valves and aluminium lifters so it's more responsive. Also, the VK45 puts out 254 kW and 451 Nm while the VG35 puts out 228 kW and 390 Nm. And I also thought I read somewhere that V8's are better balanced than V6's, but can't be sure of that.
RB30DET or VG30DET? They would be my two choices, unless you wanted to go V8. The V6 can be a bit expensive compared with a straight six eg four adjustable cam wheels compared with two, two exhaust manifolds compared with one. With a BB turbo a single will give good performance while a RB25 head on the RB30 block will deliver three liters of twin cam power. Plenty of choices, how much do you want to spend?
Not very common though... I don't know of one in australia. Any straight six is going to be difficult and expensive to fit into the Z. Parts may be cheaper and easier to get, but the $10,000 to fit the engine in the first place negates the savings. My opinons: RB26DETT: Great engine, revs hard, oil supply sucks. Make sure you get a R34 engine if you have the $$$ as they had better cams and mostly resolved the oiling issues. Also have steel wheel turbos which you can flog off to someone with a R32. Heaps of parts around for them, but everyone has one... Not cheap engines 2JZGTE: Also great engine, super tough, with many getting massive power with big turbo, big injectors, tune and a clutch strong enough to hold it Exhaust is on the drivers side which could cause troubles with the manifold fouling on the steering. Not too expensive and can you say Getrag 6 speed 1JZTE: Apparantly comparable to the RB26 and is supposed to have a stronger bottom end. Heads are a work of art designed in conjunction with Yamaha. many people use these heads on the 3L bottom end to create a 1.5JZ. Could be suitable for the Z as it is slightly smaller than the 2J, but is 0.5L smaller. VH41/45 Nissan's own V8, nice and compact with the same power as a stock TT. 41's rev harder and have metal timing chain guides as apposed to the 45's plastic ones (what where they thinking ). Not a whole lot available aftermarket, but a custom TT kit would do nicely. These engines are getting more popular and thus the prices are going up, used to be able to grab one of these for around $750 from an importer, now they all seem to be up around $1800. VK45: Don't know anything about them so can't really comment. LS1: Relatively cheap, with perforance parts available off the shelf at most auto stores (you can buy a set of CNC'd alloy heads from Repco ) Responds well to mods (for a NA) and would probably be my choice just to upset all the purists 13/20B Rotaries.... Mechanical miracle, very cool in little light cars, not Z's. I have seen a 20B in a 350Z that made 500RWHP, but really bit gutless untill 7000rpm with a big turbo. Motors aren't cheap and MUST be rebuilt to take the sort of power you are talking about. They are very small though. VG30: Well everyone here has one... It's good to be different. SR20 Just kidding :banned:
Thanks for your replies There are a lot of options to go for... Just to clear things up.. Money and time are key factors but where never the sole drivers or restrictors to this project.. If they were then i just wouldnt do it. In saying that i wont be throwing 40k at the project... No dispute that all mentioned engines can make big horsepower. Bang for buck it seems that the 2jz, vg30 and the rb engines out perform the rest.. Its a case of identifying what engines would fit if a conversion was done and at what price.. Something tells me that it wont cost me 10k to fit the enine RAW. I also might mention that i have a MATE BROOOOO hahaha who is an engineer and spefcilises in these sorts of things. He is currently fitting a v8 motor to a r32 which required little or no modification. Its not to say that the zed wont need this but what we are saying that unless proper investigation is performed we/I wont understant the real cost... SO OFF i go to get this shit sorted and quoted... I still think that the 2JZ has more potential bang for buck than the ZED... I am in no way disowning my one true love (Z) but i call a spade a spade... it is rear to see 400rwkw zeds floating around even though they do exist. THese figures are more prominent in the rb and 2jz engines which is fact. Further more check out the lates HPI mag on the very back page. The figures for top rwd times are 2jz and rb engines.. Along with the 4wd but thats cheating. Some food for thought here.... Thanks for your replies by the way... Tezza
