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05-06-2011, 03:09 PM | #45 | |
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So you can have a double-adjustable monotube without an external canister ...... And you can have a double-adjustable twin-tube without an external canister? So in simpler terms its either 2 tubes stacked on top of eachother - or 2 tubes next to eachother, to make a double-adjustable single shock, correct? Is one design considered superior to the other? By logical deduction, i would think the twin-tube system is a less complex design and more reliable, but the lack of pressure would make them slower, no? Are most external reservoir 4-ways monotube or twin-tube, or is there no choice? I could go on forever here.... Thanks for the lesson, professor Last edited by mastek; 05-09-2011 at 07:11 AM.. |
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05-10-2011, 11:39 PM | #46 | |
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I've never driven a KW CS on a comperable M3 so it's hard to say which is better. They're both good shocks and can handle proper spring rates so I think it would come down to the driver experience and ability to set them up properly. I think the AST's have a wider range of adjustment and feel a bit more crisp and quicker reacting, but again my experience with the KW's is on evo's and STI's. Anyone for a shootout? |
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05-11-2011, 10:59 AM | #47 | |
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We are awaiting our e36m3 AST4200 Kit Friday, cant wait to install. I would totally do a shootout with you at a familiar track -- but no KW CS here. And im sure your setup is faster then the GC Kit I have due to the OE shocks |
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05-12-2011, 04:25 PM | #48 | |
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On another note my car is on the alignment rack right now. -3.5 degrees camber with the vorshlag plates. |
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05-13-2011, 12:21 AM | #49 |
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This question may go slide a bit off topic, but I checked AST-USA's website and it says they offer rebuild services. Does anyone know the rebuild rate on these? Like do we need to rebuild every few years or it depends on how harsh you use it (i.e., extended track session v. granny cruising) or how crap the roads are in your area?
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05-13-2011, 12:43 AM | #50 | |
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If I remember correctly AST, Koni and Ohlins enineers all agreed on about 2 years of street driving or about 30k miles. You don't have to rebuild them at the recommended time frame, but the dampers won't be at its maximum efficiency is all. |
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05-14-2011, 10:28 AM | #51 | |
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Harold, had a few questions from an earlier post:
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So you can have a double-adjustable monotube without an external canister ...... And you can have a double-adjustable twin-tube without an external canister? So in simpler terms its either 2 tubes stacked on top of eachother - or 2 tubes next to eachother, to make a double-adjustable single shock, correct? Is one design considered superior to the other? By logical deduction, i would think the twin-tube system is a less complex design and more reliable, but the lack of pressure would make them slower, no? Are most external reservoir 4-ways monotube or twin-tube, or is there no choice? I could go on forever here.... Thanks for the lesson, professor |
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05-14-2011, 01:13 PM | #52 |
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Ricky thanks for giving us good impression. I'm very interested in AST suspension systems, where did you buy it? And when you set them up or have minor trouble which shop do you go to ask for help?
What rates of springs did you choose? From your great experience and impression, those made me interested in AST. I am running with KW Variant3 but it seems not so good and not too bad. If I buy AST, I must be the 1st customer of AST in Asia. I wanna really make my M3 comfortable on street and agressive on the track. I know even if I get suspensions, I can't set them up properly, AST can't work perfectly and just same as losing money. I was just wondering who and which shop would be able to set AST up for me in Tokyo. A shop sells Moton near Tokyo but mechanics and shopper are sucks. So I'll never go for setting up. Where can I buy AST4000 or 5000 series for M3? Last edited by Mechatrosonic; 05-14-2011 at 01:22 PM.. |
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05-16-2011, 10:37 AM | #53 | |
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- Yes, Konis are twin tube double adjustable. So in simpler terms its either 2 tubes stacked on top of eachother - or 2 tubes next to eachother, to make a double-adjustable single shock, correct? - Not exactly. 2 tubes concentric is a twin tube. A monotube is one tube with a valve in between. We don't call that two tubes. Is one design considered superior to the other? By logical deduction, i would think the twin-tube system is a less complex design and more reliable, but the lack of pressure would make them slower, no? - Twin tube was designed in WWII. It is less complex and when it is broken you don't know because it just leaks internally from one tube to the other. Pressure in a monotube keeps the oil from frothing. Are most external reservoir 4-ways monotube or twin-tube, or is there no choice? The only 4 way twin tube is a Sachs or an Ohlins TTX. I wouldn't even categorize them as a twin tube because they cost $12k. I think Moton might be the only monotube 4 way. |
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05-16-2011, 10:06 PM | #55 |
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All of the data that I have collected all came together beautifully this weekend at Thunderhill and I knocked a full second off of my last visit. I have the entire system dialed in now and have to say that this is by far the best setup I've owned!
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05-16-2011, 11:31 PM | #56 | |
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I am waiting for my 4200's to show up for my newly aquired 1M. |
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05-17-2011, 12:05 AM | #57 |
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awesome review. keep us posted on the continued track times. How do they feel on the street and how easy are they to adjust between the 2. Glad your enjoying the suspension, enjoy the summer
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05-17-2011, 06:40 AM | #58 |
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thanks for the consistent updates on the coilovers! i've only been hearing positive things regarding the ASTs for both the E46 M3 and now E9X M3. i am strongly moving to the AST's for my own E46, and potentially for my E90.
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05-17-2011, 11:32 AM | #59 | |
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05-18-2011, 12:28 AM | #60 |
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Hey Ricky, will you provide some info for this thread: http://www.m3post.com/forums/showpos...71&postcount=8
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05-25-2011, 09:50 PM | #61 | |
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Thanks for the review. Can you post a photo of the front strut tower? I would like to see how much caster can you go? |
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05-25-2011, 10:20 PM | #62 |
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06-10-2011, 07:12 PM | #63 | |
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06-10-2011, 11:47 PM | #64 |
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AST 4200 for our 1M project
We should have our 4200's for our project 1M any day now!
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06-14-2011, 10:51 PM | #65 |
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06-15-2011, 07:34 AM | #66 |
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I have been looking into these dampers but there are very few people running them so I have not been able to get a lot of information. Still have not been able to determine if my Volk TE 37s 9.5x18" et 28 wheels will clear the strut with the 5000 series which seems better suited for this heavy car. I run 275 tires up front. I could use a spacer, but I'm not sure it will work even with the spacer. And though I only started going to the track 3 years ago I go whenever I can so more than 6-8 events/year.
I would like to see photo of these shocks with the sleeves needed to use it with our cars as the e9xM3 version is no longer available. My other issue is trying to put together the right spring rate etc as it would seem to be guesswork for someone with as little experience in this area as I have. Having said this I am still interested as my friend has these on his 330 and he is scary fast in that car and loves them. They are the 3rd or 4th suspension he has tried on the car. I do wonder how these would compare to the KW Clubsport where the integrated kit seems to take a lot of the guesswork out of the equation. |
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