Why 180 more HP = more brakes!

[sailsmen]

S/C a vehicle that increases the HP by 180 or 78% IMHO = increase brakes.

For the purposes of this discussion we all operate our MM's in a finite space.

It's true that a nons/c MM and an s/c MM will stop in approximately the same distance when both are going the same speed.

The purpose of brakes is to stop and or slow due to the finite space we operate our MM's in.

Any vehicle with 180 or 78% more HP will accelerate quicker, there by reaching a Higher speed which reduces the time one can operate in our finite space and lengthens the space required to stop and or slow.

For those that have an s/c for 1) show car purposes or 2) show unhuman like restraint in never utilizing the 180 or 78% additional hp to accelerate quicker then increase brakes are not needed.

[Logan]

Such is why me and Todd @ TCE got acquainted at the same time I got my supercharger. I figure the 14" Rotors and 6 piston calipers will increase my braking power a huge amount over stock brakes...

[Todd TCE]

Originally Posted by Logan

Such is why me and Todd @ TCE got acquainted at the same time I got my supercharger. I figure the 14" Rotors and 6 piston calipers will increase my braking power a huge amount over stock brakes...

This doesn't quite add up.

Just because you add 75%HP to a car does not mean you need 75% more brakes. It's not about the horse power or any change in mass, it's then about velocity. Assuming that you drive faster with the s/c you could make the case that you need more brake to stop, but only if your terminal velocity is higher.

This would imply that if you have forced induction and an increase in HP by say 75% that you now drive 78mph in the 45 zone and 114 in the 65. That's 75% faster. Somehow I don't think this is really the case.

Then there's the 'what defines more brakes' anyhow? For most of us this is more mass not more torque. Torque is nice, but firm feel and mass for repeated stopping is what most folks find beneficial. Now for grins if we apply the same logic to the speed above, you'll need 21" rotors to get that 75% gain in diameter for example. hmmm.

[sailsmen]

I am confused who is saying a 75% increase in HP = a need for a 75% increase in brakes?

[Todd TCE]

Originally Posted by sailsmen

I am confused who is saying a 75% increase in HP = a need for a 75% increase in brakes?

It was just 'fun with numbers' to see what the 75% would mean.

But still the added hp doesn't require more brakes as it is still dependant upon the velocity of the car, not its power. You can need more brakes without more power just as easily. Of course many folks can do just fine on stock brakes. It's more about meeting you driving needs than the amount of power the car produces. Logic would imply that if you added more power that you'd likely drive faster, but is it faster or quicker?

I'm still visualizing those 21" rotors though....lol

[TAF]

I feel it's a matter of "balance"...more performance should = more safety standards...and better brakes mean more safety.

A modded car will generally accelerate faster, and more than likely "live" more in the upper MPH...if not...then why would you do performance mods?

I LOVE my Brakes...and anyone that drives my car...it's ALWAYS one of the first things they tell me after the ride...

[FordNut]

My $.02 worth:
If the high power and low power cars are driven the same way, there is no real "need" for increased braking ability. But with higher power, you tend to accelerate faster so it is likely that it will spend more time at the higher speeds even if the top speeds driven are the same. More time at the higher speeds means more frequent braking from the higher speeds. So increased braking makes sense in that regard.

Also, if two cars with equal power but one has improved braking over the other are on a road race track or mountain road, the one with improved braking is much less likely to experience brake fade due to overheating. And it should have shorter stopping distances given everything else (speed, weight) is equal.

But is a brake upgrade critical, I would say not necessarily so. For me anyway, it will come after performance and tranny upgrades.

[Agent M79]

I think of the brake upgrades from 2 standpoints:

Single Event Braking: In 5,000 miles with my MM I have had about 3 instances where stopping in a shorter distance would have been advantageous. Most recently, I nearly pasted a near-sighted fox. If I could have stopped 10 feet shorter I could have avoided having to leave my lane. And before we examine that episode with a microscope, no I wasn't speeding, and no one was in the other lane, and the fox escaped without harm.

Multiple Event Braking: I have an alternate back-road route I take to and from working when there are delays or accidents on the interstate. I use my brakes alot on this route and in one section in particular heats them up real good. I am assuming that better brakes would cool better and fade less.

I don't think new brakes are a requirement for the MM. I think new brakes are a requirement for me.

[2005Marauder]

To add to the discussion. TIRES are just as important as brakes. IMHO the act of stopping a vehicle is like a three-legged stool. If any ONE leg breaks--the stool falls over. BRAKES, TIRES, and the DRIVER are the three legs. You can have the biggest, meanest brakes, but with no traction then you have no stopping ability.

[Marauderman]

Originally Posted by TAF

...and anyone that drives my car...it's ALWAYS one of the first things they tell me after the ride...

Huh....it's usually the second item in my case.....

[TAF]

Originally Posted by marauderman

Huh....it's usually the second item in my case.....

Braggart!!!



<TABLE><TBODY><TR><TD>brag·gart ( P ) Pronunciation Key (brgrt)

n. <DL><DD>One given to loud, empty boasting; a bragger.</DD></DL></TD></TR></TBODY></TABLE>

[junehhan]

Out of curiosity, what's the biggest difference between the TCE 6 piston front brake upgrade, and the Baer 2 piston 14 inch upgrade? Is there any performance difference between the two, and what else is difference besides type of caliper?

[TAF]

Originally Posted by junehhan

Out of curiosity, what's the biggest difference between the TCE 6 piston front brake upgrade, and the Baer 2 piston 14 inch upgrade? Is there any performance difference between the two, and what else is difference besides type of caliper?

I'll let Todd from TCE speak to his product. You can read all about the Baer Brakes at www.baer.com

[Todd TCE]

Originally Posted by TAF

I'll let Todd from TCE speak to his product. You can read all about the Baer Brakes at www.baer.com

The biggest difference is the caliper. One is a floating design part, the other a fixed mount. In the case of the 14 from me, the caliper is also a radial mount but that's more hype than performance. In comparing the two kits, both have what I call a narrow fit, meaning they are low profile to the wheel. Now in my case if you purchased more brake friendly wheels you could do better from me on calipers as I could put you into a full size, mega beefy six pot. At about 1" wider!

My 13 is on par rotor width with what the Baer is (I think) at 1.10 width. Not bad for normal day to day use. The larger 14 from me is at 1.25 wide and offers more heat management than the narrower models. You DO NOT increase torque or performanc with wider rotors, only thermal capacity.

Baer plusses come from more narrow fit applications then I can 'usually' match, but that's changing with the narrrow six. The pads for them are more readily available from local suppliers. And 'usually' their kits cost less. Some anyhow. That's the norm on their 'vette rotor packages, but this one here is two piece so I'm not sure. The vette rotors are quite costly and I've done more than a few 'replacements' to two piece.

The TCE/Wilwood comes out ahead for caliper options, and flexability of altering the kit later on. In the case of the MM however this is not quite so much as other kits. Replacement parts generally cost a bit less and pads for the Wilwoods out number the PBRs by many. You do however need to know where to look and learn at speak pad lingo.

All things considered, I'd say these two as they sit are at about a dead heat. But I'll take the edge for those who fit wider wheels where I can exploit the caliper options a bit more.

Hope this helps. No slam intended on either, just some thoughts on 10yrs of answering the same questions......

[TAF]

Well done, Todd!

I appreciate how you handled this