I searched, dont flame. Totally thought this has been covered...
I have *heard* that AGXs are not compatible with S13 Hicas equiped models? True? Im curious because I just bought a new S13 with hicas. der.
HICAS 240 with AGX
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Grant@tirerack
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They do not list anything on the rear .
Not true. I have a HICAS car and I have KYB's.
The problem has something to do with car's w/ electronically adjustable suspensions. To my knowledge, no s13 has this though (I don't know about the s14). Maybe it was a Euro option or JDM option??? Something's definitely not kosher b/c Koni seems to feel the same way as KYB does. If our car's did have this though, it would be likely that the top mounts were different and that's why it wouldn't work (something that could be easily remedied w/ a trip to the local junk-yard).
Maybe someone can clear all this up.
The problem has something to do with car's w/ electronically adjustable suspensions. To my knowledge, no s13 has this though (I don't know about the s14). Maybe it was a Euro option or JDM option??? Something's definitely not kosher b/c Koni seems to feel the same way as KYB does. If our car's did have this though, it would be likely that the top mounts were different and that's why it wouldn't work (something that could be easily remedied w/ a trip to the local junk-yard).
Maybe someone can clear all this up.
I believe only the Q45 had the electronic suspension - don't think the S13 was ever equipped with it.
The bottom line is, yes, it will fit. I researched the same question myself extensively. For some reason, KYB and Koni are equating the HICAS option with the Elec. Suspension, probably because the two were paired together on the Q. S13's don't have this special suspension, therefore the AGX won't cause a conflict. I've seen HICAS cars equipped with AGX struts, also. It's not going to be an issue (I'm going with the same struts myself)
The bottom line is, yes, it will fit. I researched the same question myself extensively. For some reason, KYB and Koni are equating the HICAS option with the Elec. Suspension, probably because the two were paired together on the Q. S13's don't have this special suspension, therefore the AGX won't cause a conflict. I've seen HICAS cars equipped with AGX struts, also. It's not going to be an issue (I'm going with the same struts myself)
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Grant@tirerack
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Grant@tirerack
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I just talked to a tech support guy at KYB and he will look into the exact reason they don't list the rears and will get back to me today. I did point out that the suspension is not electronic adjustable etc... He wasn't quite sure why but did say they had a fitment issue of some type. I'll let you know what they have to say. I think I'll bug Koni now...:poke
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Grant@tirerack
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Grant@tirerack
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Well, I just heard from KYB direct and they have searched the fitment records on this car 89-94 S13. They are saying that the wrap around bracket that mounts to the knuckle is not the same and will not work with the tooling they have. Those of you who are running this now, what if any modifications did you need to do to the car? Did you require any other parts to make these work? KYB would like to know so they can update the listings if they do in fact work. Thanks!
I will check my FSM when I get home tonight. I can't imagine the bracket/knuckle is different between the two, Nissan fitted the same shocks to HICAS/non-HICAS models from the factory. If you order Tokico Blues or GR-2's there is no conflict with HICAS...I don't understand how the AGX conflicts with the bracket if all the other shocks (including Koni's) fit with no problem.
Dori, care to field this one too?
Dori, care to field this one too?
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Grant@tirerack
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Yes, please check that and let us know. I don't think KYB has done any test fitments on these since the car was new. At least that was the way this sounded to me. They had to pull the test records to give me an answer as to why they don't fit. The funny thing is, when I talked to Koni, they said the Koni Sports will work on both cars as long as the HICAS model was set up with the factory KYBs!
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Grant@tirerack
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Okay, here's the deal. I have both the Koni Sport and KYB GRX struts sitting on my desk right in front of me. The lower mount is not the same.
1) The bolt bushing is 20mm I.D. and it is 22mm on the Koni. So I guess the question is, which diameter bolt is used on the stock HICAS hub? That's a heck of a difference in slop right there.
2) The bolt bushing is also longer (taller) on the KBY by 2mm which would add even more slop for the Koni when bolted up or the KYB would be a force fit in the bracket.
3) the bolt bushing on the KYB is not centered in the lower mount. It is offset by about 10mm lower to the bottom of the mount.
I have not seen the rear knuckle and mount on this car to see how that would affect the fitment. Based only on the bolt O.D. alone, I would say it does not look like a direct fit. I think that is what the folks at KYB were trying to say. If the car uses a 20mm bolt like the KYB, that thing is going to rattle around in the bushing like crazy using the Koni. If it uses the larger 22mm like the Koni, using the smaller 20mm is going to rattle around in the hub holes. Does anyone have the bolt size listed for the HICAS hub? That would give you the answer. I don't see where this is a direct fit without messing with the holes in the hub or bushings or both.
1) The bolt bushing is 20mm I.D. and it is 22mm on the Koni. So I guess the question is, which diameter bolt is used on the stock HICAS hub? That's a heck of a difference in slop right there.
2) The bolt bushing is also longer (taller) on the KBY by 2mm which would add even more slop for the Koni when bolted up or the KYB would be a force fit in the bracket.
3) the bolt bushing on the KYB is not centered in the lower mount. It is offset by about 10mm lower to the bottom of the mount.
I have not seen the rear knuckle and mount on this car to see how that would affect the fitment. Based only on the bolt O.D. alone, I would say it does not look like a direct fit. I think that is what the folks at KYB were trying to say. If the car uses a 20mm bolt like the KYB, that thing is going to rattle around in the bushing like crazy using the Koni. If it uses the larger 22mm like the Koni, using the smaller 20mm is going to rattle around in the hub holes. Does anyone have the bolt size listed for the HICAS hub? That would give you the answer. I don't see where this is a direct fit without messing with the holes in the hub or bushings or both.
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Grant@tirerack
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