VinceDude

cool thanks.

thefro526

These two posts are a bit confusing, but not necessarily wrong.... But someone might interpret them wrong.

For all intents and purposes, the S13 and S14 front subframes are identical when it comes to the LCA Mounting point - though they may be slightly different elsewhere, I'm not sure.

If you're planning on upgrading your front stuff from S13 to S14, you'll need to make sure that your ball joints match the knuckle. If you've got an S14 Knuckle, you'll need S14 Ball Joints/Tapered Shanks in whatever LCA you want to run - if you've got S13, then you need S13 Ball Joints.

In terms of Stock LCA's, S13/S14 LCA's can be made to work with either knuckle, as long as they have the appropriate ball joint installed. The S14 LCA's are significantly longer than S13.

You really don't need a press to knock out most S-Chassis Bushings, unless you're knocking out the sleeves too... And even then, there are ways to get the sleeves out without using a press, you just need to be careful to not damage the bore.

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godsmack

And to add to ^^^

The front tension rods for an s14 are also longer than the s13. You can not put front stock tension rods on an s13 without doing modification. But the s13 tensions can be used with s14lca.

VinceDude

I'm gonna run the some max suspesion up front too. Should I just run s13 arms from max or does it make a difference to run the s14 one? If anyone knows.

The ball joint taper was worth mentioning thanks for doing so.

rubhamusan

Wow this thread is cluttered. First off i have the complete underside of a s15.

Here is what i personally have found true for my s13 application.
The S15 has NO speed sensor period!
It uses a ABS sensor in the diff to calculate speed.
You can use a s13 diff with a abs sensor in it to accomplish the same goal. But final drive will be wrong.
The s15 subframe has a different geometry to it vs s13 or 14.
A s15 diff will bolt in using s13 cover.

Lca's are longer.
Ball joints are different.
Toe arms are wider.

I'm torn between putting my subframe in. I made the offset bushings myself out of 6061
And have removed all the old bushings and cut out the sleeves. I blue printed a set of stance
Bushings. I froze them and there a pain to put in so i stopped on that part and just focused on getting the car on the road. Now that the car has done some time on the road i dont know if i really want any more traction. I only drift the car nothing more. Its running 1.2 bar
i only want 300 hp. Has anyone done a s15 subframe in a low hp drift application ?
It would suck to do all that work and money and not be happy with it.

ixfxi

most of your post is correct. the above comment is my only gripe.

i found NO major difference between S14 and S15 subframes, only minor... very minor differences, none of which have to do with the suspension mounting locations... etc

care to share what you found different?

lflkajfj12123

its not different

s15 subframe is s14 subframe with extra bracing

ixfxi

thats not what i found.

ive found s14 subframes, some with bracing, some without. does not matter if its auto or manual, zenki or kouki... it found it totally random.

the s15 subframe i purchased was with bracing, but i wouldnt be surprised if some were without.

and the bracing is bullshit, nothing note-worthy

lflkajfj12123

thats weird

but there is for sure no difference in the suspension geometry between s14 and s15

rubhamusan

There was a option video were yashio factory bought a silvia q and put a full s15 drive trane and rear subframe. If the translation was correct they said the s15 subframe had a unique geometry vs the s14 and s13. Its been years since ive watched it but i always thought about getting a subframe and trying it out. I am working on getting my hands on a cmm 3d scanner and scanning all three and posting the difference.

lflkajfj12123

yeah it was option2 vol 34 silvia tuning special

here you can download it from my site

http://driftwolrd.com/video/opt2v34.m4v ~ goto around 13:00 minutes

they just say that versus the s13

and its only different for the LCA

s15 frame is picked because of the bracing

ixfxi

damn soap, you memorized that shit?

no offense, but you're a nerd bro

rubhamusan

Thanks for the clarification .

lflkajfj12123

yeah i think i have a problem :|

InsTanCeZ

lol I downloaded that vid off your site too. That's like the coolest Option vid ever. I don't blame you for memorizing it lol.

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