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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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01-22-2016, 10:51 AM | #6961 | |
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01-22-2016, 10:54 AM | #6962 |
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I think the increased roll resistance from a drop knuckle combined with the wider front track really offset any negatives associated with not being able to run a really aggressive wheel and tire setup.
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01-22-2016, 11:13 AM | #6963 | |
Zilvia Junkie
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Well, by the sounds of it, average LCA extensions are about 1" (obviously this can vary). With camber plates and that 1" extension (from what I've read) you will still be at approximately -4* (top plates being positive as possible). I get the wheel fitment part, if you wanted to get serious about geometry and design, sure. The negative camber (-4 or more) degrees would wear down a street driven car's tires regardless of wheel dimensions. So your opinion is stock knuckles, unless running extended LCA's. Good to hear, still looking for all opinions and experiences. |
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01-22-2016, 11:30 AM | #6964 |
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If you're doing roadcourse work, gktech stuff would work great. Ackerman really isn't important on a decently sized track, and the quicksteer is nice.
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01-22-2016, 12:24 PM | #6965 | |
Zilvia Junkie
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Quote:
I saw those, that looks like a good option (so it sounds) for what Id like. It also sounds like a steering rack spacers may be enough for now. |
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01-26-2016, 12:55 PM | #6966 |
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Got my gktech knuckles put on massive angle than I put my wheels on and back to what it was before. Wheels hit the frame rail. My wheels are enkei j10 18x7.5 38 offset. New wheels are out of the question could I get some spacers to make it fit?
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01-26-2016, 01:20 PM | #6967 |
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Yeah like some 25mm ones haha. Sheesh that's a high offset wheel.
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01-26-2016, 04:45 PM | #6970 |
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GKTech Long LCA and V3 knuckle installed. Achievable angle is just awesome.
My current limitation is also the tire hitting the frame. I have the LCA's set at about 380mm center to center and 18×9.5 +10mm wheels. Last edited by ka-titties; 01-26-2016 at 07:51 PM.. |
01-27-2016, 10:51 AM | #6974 |
This is the roll center, suspension pickup, and steering angle modification t...
I extend control arms if anyone is interested.
These are extended 32mm, tig welded by a certified welder [IMG]https://uploads.tapatalk-cdn.com/20160127/ The notched ones are not available for purchase yet. d911348c4877b58e65b26f63c1e32ff2.jpg[/IMG]ImageUploadedByTapatalk1453916982.306430.jpg #FablabImageUploadedByTapatalk1453917206.369295.jpgImageUploadedByTapatalk1453917508.570186.jpg |
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01-27-2016, 02:21 PM | #6975 | |
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01-27-2016, 02:35 PM | #6976 |
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in this side the fender has not been pulled at all, ill measure later how far i have the extendeted lower control arms , look at the camber setting for the coilover
this side has been pulled, some what, still need to work it, , again look at the camber setting max setting, porbably a total of -8 degree if i had to assume, i need to change tire setup for sure, the tires i have currently were on the wheels when i bought them 225/50 r17 i either have to get wider fenders, change rim size and tire size
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01-27-2016, 04:18 PM | #6978 |
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Nothing on the ground yet. I haven't adjusted for camber either. My 'stock metal' fenders have been heavily massaged with a jack handle/bad/tire/etc. They're far from what the OEM fender lip position would be. I had to raise the coilover at least 1.5-2 inches just to be able to put the wheel back on after putting the new knuckles on.
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01-27-2016, 06:11 PM | #6979 |
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This is the roll center, suspension pickup, and steering angle modification t...
GkTech roll center knuckles.
S13 lca's extended 1" outside of the tension arms, inside bushings replaced with a 3/4" heim joint. Voodoo13 tension arms. Rack mounts moved forward. Passenger side George's rack extension. Driver side PBM tie rod spacer. Removed the rack extension from the driver side as the rack doesn't physically travel enough to make use of it. OEM Autozone s13 inner and outer tie rods with lifetime warranty. People like to point out the Ackerman as a bad thing. I personally don't see the issue and did not want a 0 Ackerman car. Looks like I'm getting the same leading angle of their V3 knuckles. 17x10 +0 225/45. Sent from my iPhone using Tapatalk |
01-27-2016, 10:24 PM | #6980 |
Zilvia FREAK!
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So aftermarket knuckles + oem length flca + aggressive front wheel setup is no bueno?
I was trying to fix my roll center with PBM knuckles, and figured I might as well get their FLCA too. This isn't a drift car. S14 - PBM knuckles, PBM flca/ten rod combo (flca set to all the way short), tein inner/outers, slotted coils, and 17x10 -30ish up front. No spacers and 215/40's. Been slacking on eyeballing the alignment, haven't touched it in a couple weeks. I guess I can play with it more, just making sure I'm understanding things correctly. PBM tension rod bracket ftw. My old one was destroyed. Yes I know my brake line is just chillin. And normally all my collars are removed, I was under the false impression that the PBM knuckle is a drop knuckle when I first installed it so I had to take them back out. |
01-28-2016, 12:24 AM | #6981 | ||
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01-28-2016, 02:34 AM | #6982 | |
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Sent from my iPhone using Tapatalk |
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01-28-2016, 07:15 AM | #6983 | |
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01-28-2016, 07:56 AM | #6984 | |
Zilvia Addict
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How much static camber up front?
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01-28-2016, 06:55 PM | #6986 |
Zilvia FREAK!
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01-29-2016, 05:00 AM | #6987 | |
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01-29-2016, 05:56 AM | #6988 |
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Ackerman can be tweaked to your liking by moving the steering rack anyway, so it's a moot point. I got the GKTech knuckles even though I use my car in autocross. I'll simply fix the Ackerman with eccentric bushings.
Ideal Ackerman is based of of tire data that's out of the realm of the normal person to collect anyway. This is probably why PoorMan likes 0* while others don't, tire differences.
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01-29-2016, 05:59 AM | #6989 |
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I need to see if I can fit eccentric bushings on my rack since the rack mounts have already been moved forward. At that point I might run out of spline engagement on the steering shaft u-joint.
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anti-squat, best thread ever, kpi, roll center, steering angle, suspension |
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