Budget CA S13 Track Car - Upgrades time...
Posted 04 January 2016 - 08:31 PM
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Posted 15 January 2016 - 09:34 AM
I wanted to shim the diff before putting it all back together but can't find anything conclusive about what thickness shim to use vs tightness. Being a track car I don't want it fully locked.
Posted 15 January 2016 - 02:07 PM
"youll find with a 1.1mm shim on top of the old nissan one itll lock like a 2way."
That's not what I want, so where's the middle ground?
I'll see what's in there first and I was thinking of pulling the stock one and going a single 1.1 to 1.5 or something?
Posted 15 January 2016 - 02:24 PM
Posted 15 January 2016 - 02:26 PM
The goal is to avoid having to do it heap s of times, but from what I hear/read there just isn't a definite answer.
Maybe I'll just go fresh new 1.1s
Posted 15 January 2016 - 02:58 PM
Posted 01 February 2016 - 08:17 AM
So, with the GT-R heading off to the tuners this weekend (hopefully, it's been a bit of a wait chasing him) I had some time to spend on the Silvia.
Managed to drain, remove, and split the diff centre.
I've been questioning my cheap recpo digital verniers lately but the existing shim measured 1.16mm. I was under the impression the the factory shim was .8mm? I measured some feeler gauge blades to test the verniers and they seemed accurate'ish depending on how tightly I wound it. As you can see though, the diff centre has paint pen on it, so I wonder if it's been split before?
So, the question becomes. Do I bang a fresh .8mm on top of this and put it back together, remove it and put say a 1.6 or 1.8mm in etc.
I just want it to stop lighting up the inside wheel when the weight is lifted off that wheel and power is applied.
Also, I'm toying with the idea of putting the GT-R on E85 (I have to think about it because there's none locally, but a few workshops/friends head down regularly and fill barrells). If I did that, I'd consider putting the Silvia on it too, though I'm not sure the 460cc injectors would flow 200kw on E85 let alone more. I'm not too concerned about peak power, just midrange and response.
Thoughts on shims and E85?
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Posted 01 February 2016 - 06:50 PM
Posted 02 February 2016 - 07:17 AM
Posted 08 February 2016 - 03:24 PM
Why are you f**king around with a s13??
Posted 08 February 2016 - 03:51 PM
Posted 08 February 2016 - 05:04 PM
I bought a cheapo S13 so I could keep saving for the GTR after I sold my last one years ago and started driving slow dailies to regain my points.
Whilst I could do the work myself I just don't have the time with toddler, another on the way, work, the Silvia etc so it's in at the tuners for mods.
I had the z tune front end finished before Christmas and now it's getting the PowerFC removed for a Haltech, possibly flex fuel, and some -9s with all the usual supports. I did the injectors and pump before it went in. It's at the fabricators now going from 3" to 3.5" to match the beastly HPI front pipe.
Just aiming for a stock engine bay and 310-330rwkw on 98 hopefully.
Posted 09 February 2016 - 07:11 AM
Posted 12 February 2016 - 09:18 AM
Posted 12 February 2016 - 09:21 AM
Talking to another guy who might have both.
Posted 12 February 2016 - 11:16 AM
Just need shafts now.
Posted 17 February 2016 - 03:17 PM
He's never had it break or any issues.
Posted 17 February 2016 - 06:40 PM
I'm dropping the centre and the original crown wheel at my fabricators while he does the GTR exhaust. He can tap the original crown wheel for the 13mm bolts and we should be good to go once I get half shafts.
Am I right in thinking that my crown wheel on that centre will retain my better suited ratio?
Posted 17 February 2016 - 08:31 PM
Posted 17 February 2016 - 08:33 PM
Any good resources around on that?
Lots of people talk about backlash etc but nobody talks about how to set a diff up properly.
Posted 17 February 2016 - 10:02 PM
Posted 03 March 2016 - 09:15 AM
Will go collect it and try one of his recommendations.
Posted 09 March 2016 - 06:51 PM
Still trying to find someone to tap my crown wheel.
When moving to r33 rear calipers on the rear with 4 stud. Can I just use R33 GT/GT4 rear rotors?
Also, if I just chucked the car on e85 and tuned, how far do you think I'd get on those 460cc injectors. Also wondering if the walbro 255 and 400lph pumps I have would be OK with e85.
Edited by ActionDan, 09 March 2016 - 06:52 PM.
Posted 14 March 2016 - 10:14 AM
Dropped diff back at fabricators to make some sleeves for the centre so I can use the M12 bolts, nobody locally wanted to tap it, apparently crown wheels are hardened steel =\
got back to work on the subframe install, ended up removing the entire hub/assembly and shock because test fittin a subframe with that shit in the way is a nightmare. Scratched up all my nice paint on the subframe =\ I'll touch it up before finally assembly.
There was no way I was bashing the rear chassis rails enough to clear the mount so I got the grinder out, ground back the right angle then used the sledge hammer to fold it down and create an angle. Just hit it with some rust proof for now, dunno if I should hit it with the welder for strength?
Stub axles turn up too.
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Posted 15 March 2016 - 07:12 AM
That aside, was thinking I might take this build thread to SAU, the people who comment here are active there also, but these forums seem fairly dead these days.
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