All Things Mk5 > Members Rides
Very budget track build
pudding:
The burger and chips look good :happy2:
Interesting tyre experimenting! Consistency and predictability are the name of the game on track, so it's good to get that dialled in :happy2:
100% right on the ARBs. Just a bigger rear bar on the road gives instant gratification in terms of a sharper turn in at normal speeds, but when you wind the wick up and change direction quickly, the imbalance is soon felt. It feels like a wobbly table, if that makes sense. Feels like you need to put something under the shortest leg :grin: And don't forget, ARBs increase the spring rates in corners, so if the rear is much stiffer, the forces have to go somewhere, which inevitably results in the front end rolling more, which = more understeer.
Yep Golf R throttle bodies bolt right on. I put one on mine. Sling it on and do a basic settings adaption in VCDS and you're good to go :happy2: The earlier VDO throttles were known to be iffy. Weak springs in them so you'd get some boost hang occasionally.
Linear springs are much better than progressives. Way more predictable. Progressives are OK for road cars driven slowly but they're no use on track.
It's good to experiment with castor as that gives you a lot more dynamic camber, so you don't have to go quite so aggressive with the static camber :happy2:
Good stuff dude! Pistonheads should put your car up against the MK8 R :happy2:
Clarkj93:
Yeah interesting changes on the mk7, some look good and some look like a backwards step. the EA888 looks like an out the box rocket though.
Yeah I agree, on what must weigh like probably 1500kg or even more in mk8 R form, did the gas strut really make any difference? I've got no intention of removing mine and I ditched the front wing brackets last week to save 400 grams as they seemed unnecessary :grin:
Hahah, not saying I did this.... but it definitely would work well to put a wood screw half way through the AC valve cap and tighten it until it slowly seeps out and then just walk away and relieve all responsibility :wink:
I did try 450's/8kg springs all around the other day on a quick road test with a very wonky alignment but ride seemed better than previously frankly so I will be taking the punt on getting it setup soon as an intermittent solution to either re-valving or replacing one day which is fine for now, a cage and a diff are way higher up on my last right now.
haha I've been watching that as well and thinking they're doing it wrong :grin:!
Clarkj93:
Been busy..
Ac is now out. 10kg off the front end in total.
Lots of debris blocking the IC going on, clearing it out and removing the AC out should see a nice difference in temps
I tried to improve air flow from the fan pack, by reducing blockages so the air can escape easier, this will lower the air pressure behind the rad and the bigger the difference between the pressure in front of the heat exchangers and the rear the more effective the cooling system will be. I could cut more out but I was concerned it would lose all its strength and start to flop about at speed and possibly damage something, most likely the radiator itself.
Its quite common to see multiple holes cut out of the front bumper on track and club race cars, I've always been dubious if this does anything. So I thought I'd put it to the test, I've cut a letter box out the bumper.
And cut some holes then out of front grille
I'll use the number plate to block this up normally, next time at circuit I'll run logs in 2 sessions of multiple temps with and without the number plate to see if it makes any difference at all.
Trimmed the rear bumper, small reduction in drag. Also it saved 1.2kg which was a nice surprise.
pudding:
10Kg, is that all?! I thought it would be a bit more than that! Oh well, 10Kg is 10kg :happy2:
Without the A/C condenser removed, debris shouldn't build up like that again, plus the obvious airflow benefits :happy2:
Yeah I wouldn't have swiss cheesed the radiator cowling like that tbh :grin: It reduces the amount of air pulled through the rad when sat in traffic, although as your car is predominantly for track work, it shouldn't really matter in your case :happy2: Defo not recommended on a daily though :grin:
Swiss cheesed bumper should help the intercooler though, and indeed engine cooling at high rpm :happy2:
Clarkj93:
--- Quote from: Pudding on August 11, 2023, 10:45:30 pm ---10Kg, is that all?! I thought it would be a bit more than that! Oh well, 10Kg is 10kg :happy2:
Without the A/C condenser removed, debris shouldn't build up like that again, plus the obvious airflow benefits :happy2:
Yeah I wouldn't have swiss cheesed the radiator cowling like that tbh :grin: It reduces the amount of air pulled through the rad when sat in traffic, although as your car is predominantly for track work, it shouldn't really matter in your case :happy2: Defo not recommended on a daily though :grin:
Swiss cheesed bumper should help the intercooler though, and indeed engine cooling at high rpm :happy2:
--- End quote ---
yeah 10kg, all on the front end though, still in bits anyway so not had a chance to test it yet :grin: MOT is soon so need to get it sorted. Debating removing the heater blower/matrix as its a big old chunky thing and possibly just ducting the heater radiator next, not sure yet as I'm not exactly sure how much it weighs and not sure how easy it will be to fit back in just for the sake of weighing it so could end up being a headache.
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