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Re: Brakes
[Re: LiamM]
#1467415
09/01/2014 11:05
09/01/2014 11:05
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F1ANG
Unregistered
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F1ANG
Unregistered
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15" rims definatley won't go over the brembos on the front. The only way you'll be able to do it, is to fit smaller callipers. The 20v N/A callipers work quite well, with decent disks, pads and fluid etc... But you have a good bit more weight in a 20vt, so I wouldn't recommend it, especially on a track.
Or depending on how much your willing to part with, you could always go after market? Tarox or something but brand new the conversion won't be cheap. 1k + at least.
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Re: Brakes
[Re: LiamM]
#1467447
09/01/2014 12:35
09/01/2014 12:35
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Joined: Mar 2010
Posts: 106 Ireland
LiamM
OP
On a journey
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OP
On a journey
Joined: Mar 2010
Posts: 106
Ireland
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195 / 50 R15 215 / 45 R17
The above are the only two sizes of Yokohama A048 tyres allowed in the class, the 17" option rolling circumference is quite a bit more than the 15". It makes a massive difference under acceleration!
I'd put 14" wheels on it if i could!!
Last edited by LiamM; 09/01/2014 12:35.
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Re: Brakes
[Re: LiamM]
#1467449
09/01/2014 12:41
09/01/2014 12:41
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Joined: Dec 2005
Posts: 3,694 Midlands
MCMike
Club member 2095
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Club member 2095
Forum is my job
Joined: Dec 2005
Posts: 3,694
Midlands
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The Coupe 20VT is high geared, I can see how the acceleration could be improved with lower gearing, for a twisty track.
1972 Triumph Stag 1984 Alfasud TI 1999 Fiat Coupe Turbo LE 2005 350Z
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Re: Brakes
[Re: MCMike]
#1467452
09/01/2014 12:49
09/01/2014 12:49
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Joined: Mar 2010
Posts: 106 Ireland
LiamM
OP
On a journey
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OP
On a journey
Joined: Mar 2010
Posts: 106
Ireland
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The Coupe 20VT is high geared, I can see how the acceleration could be improved with lower gearing, for a twisty track. Exactly, and they don't get more twisty than Mondello Park in Ireland! even the fastest cars will never see any more than 110mph on the main straight
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Re: Brakes
[Re: andyps]
#1467643
10/01/2014 13:56
10/01/2014 13:56
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Joined: Mar 2010
Posts: 106 Ireland
LiamM
OP
On a journey
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OP
On a journey
Joined: Mar 2010
Posts: 106
Ireland
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Is there any specific advantage in radially mounted calipers? Looking at some they would take up more space than standard mountings. I don't know specifically what the Boxster ones are like, presumably the main thing you want is low profile around the disc so the smaller wheel will fit. Have you thought of the kits sold by Demon Tweeks (amongst others) - http://www.demon-tweeks.co.uk/performance/brake-kits/car/fiat/coupe/1998/2-0-20v It's easier to make them fit on a car with limited space like the coupe, cut the old lug mountings off and the radial mounts are a bit lighter, also an advantage if I ever want to fit larger discs as they just need to have spacers fitted. Those upgrade kits are very nice, but silly money, the Porsche calipers cost £250, and we will machine the existing discs to fit, The same outcome for a quarter of the cost
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Re: Brakes
[Re: Per]
#1467644
10/01/2014 13:56
10/01/2014 13:56
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Joined: Mar 2010
Posts: 106 Ireland
LiamM
OP
On a journey
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OP
On a journey
Joined: Mar 2010
Posts: 106
Ireland
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Silly class, I wouldn't attend. Why is it silly?
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Re: Brakes
[Re: LiamM]
#1467813
11/01/2014 07:46
11/01/2014 07:46
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johnnybravoturbo
Unregistered
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johnnybravoturbo
Unregistered
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15" speedlines fit over brembos. Popular with the Peugeot croud ,need wobbly bolts.
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Re: Brakes
[Re: LiamM]
#1467851
11/01/2014 13:12
11/01/2014 13:12
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Joined: Jan 2006
Posts: 3,034 Sweden
Per
I need some sleep
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I need some sleep
Joined: Jan 2006
Posts: 3,034
Sweden
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Silly class, I wouldn't attend. Why is it silly? Sorry, I meant the regulations.. With a Coupe I'd choose another class instead of strangling the car to fit. Just my immidiate silly response.
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Re: Brakes
[Re: ]
#1467863
11/01/2014 14:32
11/01/2014 14:32
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Joined: Sep 2009
Posts: 5,022 ation
szkom
Club member 2000
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Club member 2000
Forum is my life
Joined: Sep 2009
Posts: 5,022
ation
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15" speedlines fit over brembos. Popular with the Peugeot croud ,need wobbly bolts. Which model wheels and what size disc? LiamM, you'll have to start a project thread. Looks like your build will be a good one to follow.
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Re: Brakes
[Re: LiamM]
#1473751
11/02/2014 14:42
11/02/2014 14:42
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Joined: Mar 2010
Posts: 106 Ireland
LiamM
OP
On a journey
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OP
On a journey
Joined: Mar 2010
Posts: 106
Ireland
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Also, we've turned the coupe 5 speed 'box into an Alfa / Fiat hybrid short ratio 6 speed!
Ingredients:
1 no spare Coupe 5 speed 'box 1 no spare Alfa 2.5V6 6 speed 'box 1 no Engineer with the patience of a saint
Method:
Empty the contents of the 2 boxes into a large pre oiled bowl and stir vigorously. Use the engineer to fit the 1-5 gears from the coupe box and the 6th gear from the Alfa box, to the Alfa final drive, in the coupe bell housing, using the back end of the longer housing from the Alfa box to accommodate the longer final drive shaft.
Simple, easy and cheap mod, a spare V6 box can be got for a little as £50
Q2 differential should also fit, I'll be going to a 1.5 way plate diff when funds allow.
Last edited by LiamM; 12/02/2014 11:53.
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Re: Brakes
[Re: Gunzi]
#1475143
19/02/2014 15:07
19/02/2014 15:07
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Joined: Mar 2010
Posts: 106 Ireland
LiamM
OP
On a journey
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OP
On a journey
Joined: Mar 2010
Posts: 106
Ireland
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Liam great update - would be very interested if you manage to get the Q2 to fit! Q2 is a direct fit, differentials are identical, both were on work bench last weekend
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Re: Brakes
[Re: LiamM]
#1475227
19/02/2014 22:00
19/02/2014 22:00
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Joined: Oct 2009
Posts: 684 Derby
Ecrab
Enjoying the ride
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Enjoying the ride
Joined: Oct 2009
Posts: 684
Derby
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[Q2 is a direct fit, differentials are identical, both were on work bench last weekend Are you sure its a direct fit. Other people who have fitted them say mods are required
Last edited by Ecrab; 19/02/2014 22:06.
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