the extreior bodies on all S30's is basically the same, except:the front valance changed and front parking lights were moved to the grill in 74.5the rear quarterpanles were smoothed out around the rear bumper (the 240 and early 260 had indentions int he quarter panel to allow for the wrap around "skinny" bumper to wrap around) in 74.5they also added a little wedge shaped trm panel over the rear bumper and some filler panels above the front bumper when they went to the big bumpersin 76 they added hood ventsin 71.5 they put a vent in the c pillar and closed off the vents in the hatchI think 72 they added door "crash" bars, other than those things the door exterior is the same

the suspension and steering stayed basically the same, the mounting points for the top of the struts was moved down a bit, they changed the front of the frame rails beside the radiator in 71.5they extended the frame rail floor support all the way back in 74.5the spare tire well was made shalower in 77they added a rear sway bar in 77went from single to dual piston rear drums in 78the tail lights changed in 74 to move the backuplights more inboard of the clusterthe dash and console changed a few times

the door skins are all interchangable but ehy redesigned the latch a few times so the door shells are not interchangable

and no the S30 never had leaf springs, 4 wheel independant with struts from the very beginning, in 79 they swapped the rear toe a semi trailing arms setup

they upped the diff to the R200 in 77-78 but only on manual trans cars

also added factory air as an option in 77

all strait 6 L6 engines, the 240Z had a 2.4 liter they then stroked it up to 2.6 for the 260Z and them overbored it to get the 2.8 for the 280Z, the cylinder heads changed quite a bit as well, the early E31 had the smallest combustion chamber and the smallest valves, the E88 little bigger but still with the small valves, the N42 gave a bit more volume and larger valves, the N47 is the same as the N42 but with sleaved exhaust runners for emissions crap, the P79 had more volue than the N series but same valves and retained the same valve diameters and the sleaved exhaust runners, the P90 has the same volume and valves as the P79 but without the restrictive sleaved exhaust runners, the P90A was the same as the P90 but with the advent of hydraulic pedistal lifters so no more adjusting vlave lash (some P90a's got out with the mechanicals lifters but generally the a is hydraulic

thanks for the info man! Why would nissan stroke the engines but in return have less hp? Was it because of the stricter emissions?

the 240Z was rated with Gross hp (no drag ont he motor) the 280Z was rated with Net HP (waterpump and alternator hooked up) also they reduced the comrpession ratio, they only increased displacement to make up for lost power, truely they are all pretty equal on power, however some combinations= more power, the poeular setup is the F54 flattop block, found in the 81-83 280ZX N/A and the N42 head, you can run this set up wth either arbs or injections but the stock Bosch L-Jetronic Injection system sucks, and half of the cars sucked as well, the tripple webber DCOE's or similar will add about 30 whp, on that set up it shoud be pretty close to 200whp, keep in mind that stock at the wheel most were in the 100-120 whp range

thanks man...i couldnt find none of those things on any site....btw is it better to run on individual throttle bodies? because i really am thinking of buying a Z instead of going to Osaka. Ehh im still deciding

Mr1der wrote:I'm wanting to say both made it to Europe....and possibly Australia.

the FJ24 is a super rare however due to it only being made a few years if that.

Thankfully, we've got members here with WAY more information than I've got.

FJ20ET made it to both NZ and Australia, but niether got the FJ24

Actually, the FJ20 was not the first Nissan twin cam motor. The S20 from the Skyline GT-R and 432Z was. It was a twin cam, 24 valve, crossflow, 2 liter inline 6 that produced 160hp and was built from late '68 to early '73. As for the FJ24, it was not a production motor. It was a Nismo built unit. A special stroker crankshaft and unique overbore pistons allowed an FJ20 to be converted into the FJ24. The factory built ones had huge ports on the head and reportedly put out 280hp N/A. Imagine turbocharging one.

Brian

was the s20 carburated? and speaking of skyline was the 73 GTR ever raced by nissan?

akwikz wrote:Actually, the FJ20 was not the first Nissan twin cam motor. The S20 from the Skyline GT-R and 432Z was. It was a twin cam, 24 valve, crossflow, 2 liter inline 6 that produced 160hp and was built from late '68 to early '73. As for the FJ24, it was not a production motor. It was a Nismo built unit. A special stroker crankshaft and unique overbore pistons allowed an FJ20 to be converted into the FJ24. The factory built ones had huge ports on the head and reportedly put out 280hp N/A. Imagine turbocharging one.

Brian

so me a favor and kick me in the nuts for forgetting all about that motor. The FJ was the first DOHC and EFI motor.

anybody remember the name of the company that made DOHC heads for the L series?

OS-Giken was the most famous for it but there were others

the S20 was a great motor. yes it had tripple carbs.and the FJ24 was a production motor. released in cars such as the 240RS.I have seen a FJ24 in pieces here in NZ, and yeah, it does have MASSIVE ports! ( I also seen a FIA L-series head....massive ports in that too ).The FJ rods are strong as hell aswell.huge

yeah..but ITB's are even better!

those aren't ITB's looks like tripple webbers, delorto's mikuni's or whatever brand with velocity stacks

evildky wrote:those aren't ITB's looks like tripple webbers, delorto's mikuni's or whatever brand with velocity stacks

Of course they are ITBs ( Individual Throttle Bodies ), yes, they are tripple carbs also.....but each Cylinder has its own throttle body, therefore, they ARE ITB

trip duals....

probably Mikunis...not sure though...

is that the header lurching over the motor? that's what it looks like...

I think ITB's and I think Injection, but this setup uses carb throttlebodies

and this one uses 6 individual carbs

I think I'm gonna print that and take it to the bathroom with me.

does anyone know if the ITB's TODA makes are injected? <dont know much about that type of stuff