Paul (Notts)
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| posted on 13/7/05 at 06:34 PM |
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Vented or solid ?
Time to sort out the front brakes on my Viento.
Just got a price from MAC#1 for willwood four pot callipers but they only stock solid disc types.
will these be OK for the weight of a V8 viento est 500 - 550 Kg
Vented types cost more but are they worth it ?
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tks
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| posted on 13/7/05 at 07:49 PM |
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would go vented...
500-550 with V8?
optimistic??
its only 100Kgs more of an Velocity??with bike engine?
think you need to calculate with 700Kgs
Fuel Full, 2 persons.. etc. etc.
Tks
The above comments are always meant to be from the above persons perspective.
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bimbleuk
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| posted on 13/7/05 at 07:55 PM |
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I agree I was at RAW today and the supercharged V8 Striker they built recently for a customer came in at 700kg all up.
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Paul (Notts)
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| posted on 13/7/05 at 08:04 PM |
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I view the weight of the car as i view my own weight
a lot less than it realy is
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Paul (Notts)
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| posted on 13/7/05 at 08:06 PM |
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There again. We are not realy talking about weight but MASS
Weight and mass are two different things.
One is a scaler quantity mesured in Kg
the other is a vector quantity measured in newtons
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Stu16v
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| posted on 13/7/05 at 08:09 PM |
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quote:
Originally posted by Paul (Notts)
There again. We are not realy talking about weight but MASS
Weight and mass are two different things.
One is a scaler quantity mesured in Kg
the other is a vector quantity measured in newtons
Either way, you need to be able to stop it...
Dont just build it.....make it!
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Paul (Notts)
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| posted on 13/7/05 at 08:11 PM |
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would like it to go first!!!!!
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ady8077
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| posted on 13/7/05 at 08:23 PM |
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Hi Paul
MNR do wilwood powerlite kits that use vented disks
Adrian
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Paul (Notts)
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| posted on 13/7/05 at 08:45 PM |
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Thanks Adrian, will try get in touch with them for a price.
Paul
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Hellfire
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| posted on 13/7/05 at 11:19 PM |
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quote:
Originally posted by ady8077
Hi Paul
MNR do wilwood powerlite kits that use vented disks
Adrian
I believe they are to fit the Sierra Hubs too.. Regarding the weight of 500~550... our's has a bike engine and is 506Kgs fully loaded. I
would consider hitting within 100Kgs this weight with a V8 a pipe dream.
[Edited on 14-7-05 by Hellfire]
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NS Dev
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| posted on 14/7/05 at 07:02 AM |
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Stu, what do you use on your car (the locost), out of interest. Still not decided on vented or solid for mine yet and performance/weights should be
similar.
cheers
Nat
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bimbleuk
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| posted on 14/7/05 at 09:41 AM |
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Personally I'm sticking to solid 240mm discs and light 4 pot calipers. I was speaking to Bruce at Raceleda and that the route he advises on
500kg cars.
The theory is get the disc up to working temperature quickly so less mass in the disc helps this.
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smart51
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| posted on 14/7/05 at 12:19 PM |
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vented or not vented, for the same area of brake pad against metal you get the same braking effort. Solid discs may fade more if they overheat. The
vent in ventilated discs cools the discs, reducing fade.
Vented discs weigh more because they are thicker. this makes your car slower to accelerate and decelerate (slightly).
A seven, being an opened wheeled car, will have good brake cooling as it is and so vented discs are less neccesary.
Discs only heat up by being used a lot. That is by slowing a lot of mass from high speed to low speeds very often. Sevens don't have a lot of
mass and so need vented discs less. If you are planing on serious racing then vented discs may be for you. For a road car then lower weight of solid
dics may be more benificial than the vent in ventilated discs.
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tks
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| posted on 14/7/05 at 06:19 PM |
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are the diameters the same?
pff
i would go vented....
on 700Kgs the 3Kgs difference on your disk don't gonna make allot of difference?
do you think?
Tks
The above comments are always meant to be from the above persons perspective.
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JoelP
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| posted on 14/7/05 at 09:21 PM |
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its unspring weight, so 3kgs might even be noticable.
i was gonna forward the argument for solid discs, but wouldnt have worded it so well! But i would use solid if i could be arsed changing them 
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