All Things Mk5 > Members Rides
Very budget track build
Clarkj93:
--- Quote from: Pudding on December 04, 2021, 01:06:25 pm ---
--- Quote from: Clarkj93 on November 30, 2021, 09:43:01 pm ---I came across this book recently, Great Xmas read for any setup geeks. Most interesting part I found was how it debunks a lot of poly bushes as when the grease gets pushed out after said weeks or months they start to bind to the inner steel tube and don't offer proper rotation anymore (squeaking noises are evidence of this apparantally). I notice super pro seem to have a couple of differences to most other manufacturers to keep hold of grease for longer periods and stop it being pushed out, in my mind anyway they sound far superior after reading this.
Chassis Engineering HP1055 https://www.amazon.co.uk/dp/1557880557/ref=cm_sw_r_apan_glt_fabc_29GYX4G6BS1QF386VW3C?_encoding=UTF8&psc=1
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Not sure if that book mentions it, but the worst thing about poly is a problem known as 'creep and set', which is where the bushes compress/squish into a particular position and stay like that, almost like plastic. My Whiteline ALK did exactly that. Basically, the hole in the middle of the bush ovalised, causing all sorts of nasty tramlining and twitchy steering, especially over winter when the bushes are less compliant. I currently have the SuperPro ALK in and they'll be coming out for rubber bushes when I get around to it. Most like Audi A2 as they're solid rubber and much thicker than the S3 bushes.
As always, it comes down sales fluff convincing you rubber is cack and poly is best, when the exact opposite is true. You never see OEMs using it. It's either rubber, or rose joints on the high end track focused cars :happy2:
Anyway, those coilovers were a steal! They might irritate you a bit of harsh roads but on the track they'll do well :happy2:
Another good read - https://balancemotorsport.co.uk/car-suspension-repair-maintenance-and-modification-book-by-julian-spender.html
He's a top man and the Custom Gaz Golds he tuned for me were bloody brilliant.
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Not that I recall... yeah it seem poly bushes solve the problem of deflection and loosing geometry but is then the cause of quite a few more issues that can sometimes defy the reason for getting them in the first place. Maybe you're right, the full works or nothing, you don't see it on expensive oem track cars like a cayman gt4 out the box do you (I'm pretty sure anyway!), which I'm sure they would gladly add poly bushes to being as its a drop in the ocean of a 70 grand-ish car anyway if they served the purpose well enough.
Just ordered that book :happy2: I'm aware of balance motorsport but I cannot remember where I've come across them.
Clarkj93:
--- Quote from: Pudding on December 04, 2021, 04:08:06 pm ---
--- Quote from: Clarkj93 on November 30, 2021, 09:43:01 pm ---So car feels a little sluggish in 3rd and up at about 3.5k onwards. Its currently got about 80/100kg of tools/equipment in boot and back seat so maybe that's a contributor but I swear I can hear boost escaping at about 3500 rpm occasionally.
Checked the DV which has covered under 1000 miles and had this small crease which looked bad at first. But took it apart and the crease had sorted itself, just refitted and made sure it was tight enough with some loctite this time, no change.
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I had the same issues, which seemed to be DV related. Really flat off boost and needing more throttle than usual to hold a steady speed. I remember R-Tech saying they experimented with stiffer springs in the Rev G, so instead, I stretched the standard one a bit which seemed to do the trick. It's a lot more responsive and punchy now. Worth a go on yours.
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Interesting idea. I had a rev g on before this one and it looked fine when I took it off and still looks fine now but did notice a difference sticking the new one in, maybe the spring is the trick on this occasion then. I'll mess about with the spare one I think.
Clarkj93:
Nothing too much exciting going on. Oil change and Fitted the new genuine seals and clips, no difference in how it's boosting however, running some logs it looks fine to me but I know somethings up. As R tech is approaching and don't know how much time il get (and when it's not raining for a change) to mess with the DV so just ordered a new one. If that does it then would be good to investigate messing with the springs on the spares ones later in the year as Pudding mentioned, if it's not split I guess a badly sealing spring because of wear and tear could cause it (in my head anyway).
New Hel stainless Steel brake line also on, I was surprised just how insecure these are with the oem clips, it took a mixture of bending oem clips, reversing oem clips and a couple cable ties to get these really secured and even then it's not stuck solid like the oem ones were but good enough I think.
No interesting pictures as of late and with Xmas in a few days I have to put the tools away for the rest of the year to avoid being shouted at so will leave you all with a rubbish one i just took with a gin and tonic in one hand and my phone in the other. Cheers!
Mekaniko:
An update is always an update! The last revision of the DV is quite differnt, I bought it directly from Pierburg as it's the same as OEM original.
Have a nice Xmas!
Clarkj93:
Great Xmas this year, Mrs car got broken into and took over a week to get sorted and they did such a bad job I had to end up sorting their shoddy work myself anyway and both isolated after catching covid.
Anyway.... swapped the DV out and seems to stop letting go of boost for a 10th of a second randomly as it did before so that's sorted now.
Bonnet pins fitted, tbh I don't like how they look but I prefer them to a smashed windshield and damaged bonnet/a pillars. Aero catches are definitely better but at 10 quid thought I'd give them a go.
Been keeping an eye on the golf over last few weeks and finished all my jobs pre r tech appointment so she's supporting her own weight for a change and actually being used. Just realised a couple hours ago after popping to a mates house that the rear driver side caliper is siezed and the passenger side i think isn't quite perfect either.
That's an extra 200 odd quid for new trw ones that I could have done without, and got about a week to sort in pitch black after work when I get hold of a new set as I'm away on the weekend. So currently frantically researching my options for the rear calipers, any suggestions feel free to share!
To be honest I'm partly tempted to just cancel or post pone r tech for much later in the year, getting a bit tired of the costs coming out on what is meant to be a budget build, it was only to cure a idling misfire after all, not sure if that does any real engine damage and is worth fixing imminently hmmmm.
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