Gav240z

The funny thing about Qantas is that they have a very good safety record touch wood. Funny joke all the same already got it in a email once but worth a second read .

Yep the 20b was in the Mazda Cosmo kinda looks like a Nissan Silvia S13. They are pretty heavy but and were more luxury than a performance car. A rotor in a Z isn't my cup of tea there just a bit lacking when it comes to torque and one of the best things about the L motor is how much torque it produces. It would make the car considerably lighter though. The early Rotors had trouble with their apex seals from what I've read that's why you see so many blowing smoke. The absolute beauty is the design. They are so simple compared with even a Lmotor no valves. No pistons. Just a simple rotor which is the shape of a triangle and ports. By making the ports bigger you can make the motor much more powerfull. However because of their design they hard to to make high compression but that's why there so good turbo . www.howthingswork.com I have done alot of reading about them. I would like to get into them one day but I just like the Z too much. :cheeky:

That's not entirely true the 260z had thricker and bigger chassis rails. The doors were reinforced with more steel making the cars slightly heavier. I admit it's not a huge difference but it is some. It is also a known fact that the early 1970 mdl 240z AUS spec ones anyway are most sort after for racing and rally because they are the lightest of the bunch. Also mistakenly known as the 1969 mdl's in Australia. Which there were none of.

All I know is what datsunfreak said it was an engine head used on a 80-83 passenger cars. It was a twin cam head with small ports. I don't know if Napz is a company or what.

Can anyone post pics of their Gnose kits. I have been wanting to get one but won't settle for any copies unless they are extremely close to original. I am wondering how the MSA one looks and how close to original it is. Of course I'm still not 100% sure on if I want a Gnose just playing with the idea .:classic:

I've actually considered all rotors I like the r100 the rx3 and rx4 the seven is ok but I prefer a Z the beauty of a rotor engine though is how simple they look. I would like to get into them one day. Most likely an Rx4 but the 3 is lighter so I dunno. :classic:

What everyone else said except a couple of things to add. Firstly you said you have a 73 right? in the states they are flat tops at this stage correct? If so then you want an earlier set 69-72 carbs. www.ztherapy.com hope that link works good explanation. Tripples are even better and webbers seem to have the biggest bragging right. However they work best on a larger camshaft profile and porting, valve work etc.. THey are not worth while without the internal engine work. You can get a Z going 12.8 down the 1/4 with SU's but they will require some work. Boaring out the throats larger needles and seats and you will probably wanna do some porting to the intake manifold also. My opinion don't even consider anything that isn't sidedraft on a straight 6.:classic: PS: 1 other thing F.I is the best especially a multiple throttle body set up. The ZX injection system will probably loose you power over the SU's. But it will be a better DD.

back to the drawing board for me. 4 / 10 I need to practice some more I think. :classic:

You make it sound like a video game. If it was done just tops it all off. IF I had a 24 cylinder mustang airplane engine in my Z that was supercharged it would do the same thing. If it was done . Seriously I don't know what your getting at but you'll find at this site we don't tolerate comments like this!

ummm how old are you?

To be honest I thought of exactly the same thing , I am not saying your full of crap or anything I believe it I just thought it was funny also .

I am glad to hear you are happy and I wouldn't personally worry about it effecting the cars originality what fun is a auto sports car in the first place? The 3.54 gear ratio is ok I'm looking at putting in a 4:11 into my Z at some stage I really want her to boogie . I recently installed a lighter flywheel and enjoy the way it revs but I feel that the revs drop quicker with the lighter wheel than with the heavier one. My new clutch made a huge difference also it really grips and makes changing gears a real thrill as it lurches the whole car forward straight away. Glad to hear your enjoying it . I am

I have no idea what your uncles car is but are you sure there's no way you could beat him in the corners the Z can be quite a weapon once set up right. Gav,

Put me down for BRE everything else is too ricey.

yeah I'm playing with the idea of switching engine heads or building another engine. Still unsure . Good to see you've made some progress there I know what fun it is removing it just havn't discovered how much fun it is to put it back.

What Steve(zvoiture) is saying, is in a nutshell yes you can do it but to be completely honest they look messy and they really don't do anything. If your using a stock intake and carbs say SU's. Then the airbox points so close to the front of the engine bay that it's practically perfect how it is. If you have a 280zx or 280z with FI which i don't think you do with a L26 in there then you can use what other steven has shown. There are other pods you can put on the front of the SU's but honestly they just soak up the heat from the exhaust manifold. :classic:

James just saw the post after I wrote you a PM. I know I have 1 set of flat tops in my n42 motor in the other 2 F54's I am not sure so as I said in the PM will let you know however it may not be for a while. Gav,