racetech, would be a good idea, but then need to find people that are running these setups to test wheels on

and then some wheels might fit over the brakes and others of the same size might not so its a bit hard to say exactly what will fit. could probably have a guess as to what would fit

13s would fit over most 250mm disc setups
14s probably 270mm
15s 290mm

and so on. but it also depends on the disc offset and what caliper you are using and stuff

WARDY, i'm doing the same coil over conversion at the moment.

I just picked up a set of VW Golf Mk1 front inserts from Pedders, they fit in the standard struts perfect so no honing out the strut at all.

The Golf inserts are 100mm shorter than stock, so i'll be cutting 100mm out of my strut tube (or I might decide to cut 75mm out and run a 25mm spacer inside the strut) when I do the coil over conversion.

What i'll be doing is cutting the top of the strut off 50mm down, then cutting 100mm or 75mm out, then re welding the 50mm top section back on. This is good for two reasons, it will retain the threaded section for the cap to screw the insert down with and you'll see this top section of the strut is from the factory honed out about 30mm down which you'll need for the insert to fit as the Golf inserts taper at the top slightly bigger in diameter (actually the stock ones do too)

I do not know if it was asked, but wouldn't it be nice to specify which setups works with which wheel size. Example, what is the biggest brake setup that will fit 13" wheels.

ah yeh i get what you mean. i might just try and use the 1200 struts with the drum hub. Ill just have to try and fab up my own caliper brackets.. shouldnt be too hard. Just another quick question, if i decide to stick with the standard struts, what insert would be best to use when converting to coilovers? Thanks again mate much appreciated

wardy, id say stay with the stock struts or go for r31

the problem though with going r31 is that it will limit your wheel choice as you wont be able to too much of an offset on the rims without them being outside the guard...so less dish

where as stock struts you can keep the original track width...but if you then do the silvia brake conversion using disc hubs the track will increase anyway. but if you do the conversion and make it work with drum hubs then you should be pretty close to stock track width and be able to use neg offset wheels without them sticking out the guards too much

ok well just spent up on all new gear for the front of mine, already has the ca conversion, just fitting new rotors, wheelstuds, pads, fluid

also, what brake lines are used on a 120y->s13 swap?

Shifty- Yeah mate they should be, there is no need to change the studs when doin the silvia brake conversion.

Pig- Brake size isnt overly inportant, as long as they are a fair size (eg Magna, R31 or S13) As it will only be used on the street, drags and the odd trip to powercruise. As for wheels i wouldnt mind a set of nice dished 14" jap rims at some stage, id also like to run stockers etc. Just wondering what the best ones i have listed above would be to use? I have most of the parts available to do either conversion

Guys I have CA S13 brakes on my 120Y (78 model).

I need to replace the wheel studs. Will the wheelstuds be 120Y ones?

from what i have heard, they are similar to the earlier 180b struts, like sunny struts
so use different hubs and have a smaller stub axle

i'd find actual 180b struts if you were doing that

as to what is best, depends on a couple of things. what size and offset wheels are you planning on running and how big do you want your brakes

digging up an old thread, but are the standard 1600 (510) struts the same as the 180b units? Require the same mods to fit into a 1200 sedan? I have the choice of R31 struts, 1600 struts and standard 1200 struts.. Ill be running a coilover kit and adjustable strut tops. Maybe even adustable LCA's. What struts would be best to use?