luvemfast Posted October 13, 2011 Share Posted October 13, 2011 I've decided that the new PMC powerplant is going to show that the suspension in my car needs work. So have decided to look into doing the S13 coilover transplant. Clearly after adjustable height and damper. Anyone know a good place to buy some? Second hand will suffice. What should I be on the lookout for? thanks, Simon Quote Link to comment Share on other sites More sharing options...
benny Posted October 13, 2011 Share Posted October 13, 2011 nissansilvia.com always have used ones coming up for sale. I believe the rear just bolts in but you will have to make the front work. Most of the japanese brands eg. HKS, TEIn can be rebuilt. I have heard good things about these coilovers http://nissansilvia.com/forums/index.php?showtopic=510090 Fairly Cheap for the functionality you get. Quote Link to comment Share on other sites More sharing options...
benny Posted October 13, 2011 Share Posted October 13, 2011 here is a cheap average condition set- http://nissansilvia.com/forums/index.php?showtopic=510368 buying the other ones though you know they are going to work and you get to pick spring rates for free!! Quote Link to comment Share on other sites More sharing options...
luvemfast Posted October 13, 2011 Author Share Posted October 13, 2011 Thanks Benny boy For anyone interested 1 kg/mm = ~56 lb/in Spring Rate Equivalencies 700 lb/in = 12.5 kg/mm 650 lb/in = 11.6 kg/mm 600 lb/in = 10.7 kg/mm 550 lb/in = 9.8 kg/mm 500 lb/in = 8.9 kg/mm 450 lb/in = 8 kg/mm 400 lb/in = 7.1 kg/mm 350 lb/in = 6.2 kg/mm 300 lb/in = 5.3 kg/mm 250 lb/in = 4.5 kg/mm Can I get an expert opinion on what spring rates would suit my car for trackwork and spirited driving? (not full on race, ie bone jarring) Quote Link to comment Share on other sites More sharing options...
. Posted October 13, 2011 Share Posted October 13, 2011 I have just gone from 250lb to 300lb in my 240z it has turned out to be too hard and the car now severely understeers so I am planning to go back to 275lb but for a 280zx I'd suggest 300lb should be about right due to the extra chasis weight. Quote Link to comment Share on other sites More sharing options...
Z Posted October 13, 2011 Share Posted October 13, 2011 This ain't a bad price for new, but shipping is the factor I guess: http://technotoytuning.com/productdetail.php?p=582 Quote Link to comment Share on other sites More sharing options...
. Posted October 13, 2011 Share Posted October 13, 2011 Its still an expensive exercise if you haven't got the skills or equipment to weld them in. Quote Link to comment Share on other sites More sharing options...
C.A.R. Posted October 13, 2011 Share Posted October 13, 2011 Paging '260DET'... Quote Link to comment Share on other sites More sharing options...
. Posted October 13, 2011 Share Posted October 13, 2011 Paging '260DET'... +1 But I think his setup was a rather involved conversion. It certainly gets results though. Quote Link to comment Share on other sites More sharing options...
d3c0y Posted October 13, 2011 Share Posted October 13, 2011 I picked up a pair of HKS Hypermax performers 7kg & 8kg for a GDB WRX off ebay in mint condition for $450. Just remember that you dont have to get S13, you just need the correct OD on the shock body and a top mount that can be swapped for the zed type. Check out the thickness of the shafts on these bad boys: Just gotta scout around, i couldnt buy good nick second hand coilovers in Japan for that much and trust me i looked! I went to Hasegawa in Tokyo and everything for S13 R32 was flogged and shiver or it was brand new and they wanted $1500+ Here is a Hybridz how to on an S130: http://forums.hybridz.org/index.php/topic/94002-how-to-install-s13-coilovers-on-280zx-and-poly-bushings/ Quote Link to comment Share on other sites More sharing options...
RB30X Posted October 14, 2011 Share Posted October 14, 2011 I picked up a pair of HKS Hypermax performers 7kg & 8kg for a GDB WRX off ebay in mint condition for $450. Are you doing this conversion to an S130 or S30? Quote Link to comment Share on other sites More sharing options...
luvemfast Posted October 14, 2011 Author Share Posted October 14, 2011 Here is a Hybridz how to on an S130: http://forums.hybridz.org/index.php/topic/94002-how-to-install-s13-coilovers-on-280zx-and-poly-bushings/ That was my inspiration. Quote Link to comment Share on other sites More sharing options...
d3c0y Posted October 18, 2011 Share Posted October 18, 2011 Are you doing this conversion to an S130 or S30? S30 Quote Link to comment Share on other sites More sharing options...
260Devil Posted December 20, 2011 Share Posted December 20, 2011 what kind of work are we talking about to get the fronts in? I am up to this stage on my Zed and am completely overwhelmed on what to do. Quote Link to comment Share on other sites More sharing options...
d3c0y Posted December 22, 2011 Share Posted December 22, 2011 You will be able to come over and check out what the finished product looks like in Jan/Feb Quote Link to comment Share on other sites More sharing options...
luvemfast Posted December 22, 2011 Author Share Posted December 22, 2011 Anything like my projects. Jan Feb can turn quickly to Jun Jul Quote Link to comment Share on other sites More sharing options...
d3c0y Posted December 22, 2011 Share Posted December 22, 2011 I'm going to cheat - i met Justyn Snooks selling him an L20B on ebay said he would help me with it Quote Link to comment Share on other sites More sharing options...
Agno Posted December 23, 2011 Share Posted December 23, 2011 A friend of mine has a Taiwanese company making some weld on coilovers for R31 skylines which are almost identical to the Ground Control front coilovers and could make for an easier conversion: I have a set in my car and they are pretty good and at $1300 it's not too expensive either. They have the same abilities to adjust camber, height and damper stiffness without removing them from the car like most conventional coilovers and you get to choose your spring rates. Considering S13 has the same front top hat PCD as R31 and R31s have 3 bolt rear top hats as well it might make for an easy swap if everything lines up (I don't know how similar S130 front suspension is to Z31 but I know that Z31 has the same top hat as R31) Quote Link to comment Share on other sites More sharing options...
d3c0y Posted December 23, 2011 Share Posted December 23, 2011 That's the same as what we are all doing in this thread... Quote Link to comment Share on other sites More sharing options...
Agno Posted December 23, 2011 Share Posted December 23, 2011 Close but no. These coilovers you cut your original strut down and leave about an inch of tube, slide the new damper tube over the top and weld it to the base foot. Rather than grind brackets off an s13 coilover and machining the knuckle to fit the larger diameter tube. This means less machining needs to be done plus you aren't welding an oil/gas filled tube Edit: Scratch that had another look at the S13 coils. The option I suggested above just has the brackets already removed. If you are going new then I would say it's worth it but otherwise backyarding ftw Quote Link to comment Share on other sites More sharing options...
luvemfast Posted February 17, 2012 Author Share Posted February 17, 2012 Resurrecting an old thread. I've found a mint set of Tein coil overs. But the fronts aren't base height adjustable. The rears are practically new. But they have a 4kg spring rate, about 220lb What spring rates would be best suited? I was thinking 350lb fronts and 300lb rears :-\ Quote Link to comment Share on other sites More sharing options...
luvemfast Posted February 17, 2012 Author Share Posted February 17, 2012 Just spoke to the guy. He also has some HKS springs to fit. But the only markings on them at 14.0 I hope that's not 14kg That's 840lb Quote Link to comment Share on other sites More sharing options...
PZG302 Posted February 18, 2012 Share Posted February 18, 2012 Probably is 14kg Simon, and not unreasonable. I ran 900lb springs in my 180B 3j street sedan. When we went to IPRA to drop the ride height the good old ghetto way used as we also wanted to up the spring rate to keep the rear trailing arms as close to a live rear end as possible. I think we ended up with around 1200lb springs, and concussion every time I drove over a white line, let alone a bump. Quote Link to comment Share on other sites More sharing options...
luvemfast Posted February 18, 2012 Author Share Posted February 18, 2012 I think we ended up with around 1200lb springs, and concussion every time I drove over a white line, let alone a bump. Not quite what I want though? Quote Link to comment Share on other sites More sharing options...
d3c0y Posted February 18, 2012 Share Posted February 18, 2012 Being a track car you are going to want at least springs in the 300lbs region. I think the coilovers i got are 400 and 450lbs. But i wouldnt get the non height adustable ones anyway its a waste when you can get the good ones for pretty much the same price. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.