xsspeed

From what I recall, manwell swap using factory gear is fine

cheers had a read through, good to see detailed pics of what someone has done and their thinking

mmmkay had a yarn with Clint on what's the latest in cert world with suspension. Based on the info the T3 guys emailed me it doesnt look like their design for front coilovers will pass in NZ (appears to be butt welded to spindle stub not pressfit sleeved and plug welded) The rear coilovers looks like is becoming a ball ache as there is starting to be requirements around engineering analysis for changing the load points - paraphrasing, likely as a result of 350z guys doing the same thing replacing divorced spring/damper setups with coil overs in place of damper albeit with the mounting of the damper being on an aluminium control arm (arguably steel would be better suited) but it looks like this route is going to get harder/shut down The T3 control arms and the like also seem to be getting out of favour as a result of being highly adjustable and having aluminium tension rods (hard on for steel) So likely taking another route here Dealing with rear camber, Clint let me know this is an issue the E30, cressida etc guys have too and could be solved with some eccentric bushes/bolts on the semi trailing control arms - or modify the mounting points. Looking a bit deeper online it appears there are some camber correction kits available with variations on the approaches above dumping these here for future reading: So Clint based on below I can go to max -2.42 degrees in the rear Eccentric bush: https://k-mac-camber-kits.com/product/datsun-541326-h-rear-300zx-z31-4-trail-arm-to-crossmember-bushes/ Redrill mount location 'kit' https://www.thezstore.com/page/TZS/PROD/23-4177 https://z31performance.com/forum/z31-performance-upgrade-forums/suspension-chassis-and-brakes/16563-fixed-rear-camber-template-modifcation ^also mentions using RX7 (presume FC due to the semi trailing arm) subframe mounts in place of Z31 as they have inner and outer adjustment - will look into this too

lol, sound familiar clint (i was on the phone with him today discussing similar)

whats the attraction of retrofitting? they make changing pads more of a pain too

mmmkay so I've been dilly dallying on this, between having the busiest couple of years in my life with work and kid and waiting for bits and pieces to come from japan I am at a point where i need to make a call on how to proceed with suspension. @srf keen to know what sort of height you achieved with divorced damper and spring in the rear, i keep reading online about issues keeping the spring captive when going low which led me down the path of looking again at coilovers for both front and rear. Fortunately (I'll find the silver lining) with my delays/procrastination over the last couple of years there has been a whole lot more interest around the world in the Z31 chassis, (Helped along a bit by Brandon Miller of speedhunters fame doing a pretty epic build: http://www.speedhunters.com/2021/05/project-z31-432-getting-technical/) Eyeing these up currently, just trying to work out if the fronts are going to be able to meet NZ regs or if i can get a naked set and weld the spindles on here https://technotoytuning.com/nissan/z31/full-front-coilover-conversion-z31-300zx https://technotoytuning.com/nissan/z31/rear-coilover-conversion-z31-300zx I've slid into Clints DMs enough today, and was gunna post into the cert thread, but ended up a bit of a brain dump as much for me to remember to come back to ... so here goes so like i say, going slightly down a rabbit hole but as i have been doing more research into Z31 suspension there are some limitations with the stock arrangement, particularly in the rear. As above going low in the rear creates some tow and camber issues I havent thought too much about or how to overcome if they come up with the stock rear. Current plan for the short/near term is get the suspension sussed with stock control arms etc, in the rear due to the setup, going lower is going to add more and more camber which i'll have to try and find a happy medium for cert so i can use the car a bit more than nil (its almost a barn find as it sits) - this ticks the get it lower and on sweet rims and drive it box. Longer term though I am kind of interested in optimising the setup, ive started down a little rabbit hole as mentioned and the overseas approach is a little bit weighted to rough and ready/hektik spec or there doesnt appear to be the same adherence to rules etc like we have so not sure would meet NZ reqs...So starting from a place of ignorance has anyone done anything to modify suspension geometry significantly/is there some stuff I should read? Stock - subframe with lower control arm, divorced spring and damper: (my short term thinking is replace with coilover in line with damper as online feedback suggests issues with keeping the spring captive when trying to go as low as you would with coilovers) S14 subframe retrofit this is from the Z31 build mentioned above - appears to be have been done with little expense spared so I am assuming its a quality arrangement, however its USA based so not sure how a similar approach stacks up in NZ - apparently this guy used some sort of 'kit' to adapt the S14 subframe, presumably to fit the Z31 mount locations. not sure if these control arms are off the shelf or bespoke but appear to be adjustable length (ignorant question...are these even road legal in nz?): This also got me thinking a bit more about the front setup - there's basically a lower control arm and a castor rod Stock: Below is the T3 replacement product which provides a whole lot more adjustability but wondering if these sorts of setups have any hope of being legal in NZ? Rose joints ok? Welds/materials need to meet a certain spec? https://technotoytuning.com/nissan/z31/gtx2-front-lower-control-arms-and-tc-rods-z31-300zx

ah right, but still a whole lot of trickery in the head to get oil into the cam

keen to see how you hooked the oil up and machined something to hold the solenoid valve, iirc from the beams 3s's i used to play with they just got their oil supply from, and were just slid into and and bolted to the head - again never thought about it too hard besides replacing when i broke the poor plug, in stock guise is oil to the valve from its own line/gallery?

I have spent approximately zero time trying to understand vvt inner workings besides needing oil pressure but one thing that strikes me is isnt the JZ intake on other side, i never really thought about it but i presume they spin the other way. Did that matter when setting up the vvt for advance/retard or is the valve pretty happy acting in either direction? Not sure if viable but potentially a market in RFB world, RB26's (and early RB20s at least) dont have VVT and the 'only' off the shelf solution appears to be using the HKS v-cam. I have read one or two retrofit suggestions but not seen anything quite like this for 16v 4age that you've achieved

slam and wheels first imo, then tick away at buying shit (i should heed my own advice)

Nice, i toyed with getting one to match my z31 before prices jumped but procrastinated too long - hope you got it at a price you liked! Heaps of inspo out there as you will have seen, they are pretty popular in japan and states - easy to do some subtle/reversible things to make them look slick Wheels i always wanted to do on one were big dish 5 spokes like koenigs, these are 18's but i reckon they look good on 17xwide Actually fitment on this looks a bit better

paint code is four square red?

like all good OS car/wheel combos

https://www.trademe.co.nz/3487763498

I swear there used to be some low positive offset 13" Cheviots for chevettes

I feel like you need 13s

Cardboard aero pls

at first i was like oh noes BHG, then i saw hey who did your door cards/upholstery?

I vote no side moldings, this looks so clean

Righty tighty

I now see so many blue echos and vits pesting around Auckland. I think @yoeddynz might have backed the wrong horse

So good. I feel it in my bones that this wants to keep on revving higher and I want to hear it with big exhaust k thx pls

The most casual 9k rpm ever

Is there a video of this Nanging at 9k?

the delica was the bizniz