First off, I live in SoCal and temps are around 75-80F today. I Have a B swap with the following brake/suspension mods on a 97 Civic DX:

Front Ex Knuckles
Prelude Vtec rotors redrilled to 4x100
TypeR Calipers modified to fit the knuckle/rotor
TypeR Pads
GSR Brake Master Cylinder

After driving around for less than an hour total, I decided to check out a few things and found that my rims and rotors were very hot. Not warm to the touch, but hot. I can spit on my rotors and watch it sizzle away very quickly. I can turn the wheels and don't feel any binding. Is this normal?

 

i don't know how hot your rims were, but it is very normal for the brakes to get very hot, hot enough to where you cannot touch them bare handed. not sure about the spit sizzling, never tried it.

 

This is 100% normal...when braking, Brake pads clamp on the rotor and generate LOTS of friction. Obviously this tremendous amount of friction is going to translate into heat. Just like you said, after driving spit will sizzle on the rotors

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zerovandez &raquo;</TD></TR><TR><TD CLASS="quote">First off, I live in SoCal and temps are around 75-80F today. I Have a B swap with the following brake/suspension mods on a 97 Civic DX:

Front Ex Knuckles
Prelude Vtec rotors redrilled to 4x100
TypeR Calipers modified to fit the knuckle/rotor
TypeR Pads
GSR Brake Master Cylinder

After driving around for less than an hour total, I decided to check out a few things and found that my rims and rotors were very hot. Not warm to the touch, but hot. I can spit on my rotors and watch it sizzle away very quickly. I can turn the wheels and don't feel any binding. Is this normal? </TD></TR></TABLE>
That's kind of the entire purpose of having brakes. Did you expect them to be cold? That would definitely be a problem.

Brakes turn kinetic energy into heat energy via friction and then dissipate the heat. The wheels are bolted up next to the brakes. They are going to get hot when driving the car.

I've had my brakes hot enough to glow orange and boil brake fluid at the track.

 

Oh wow. I thought I was missing something. Whew.

I am still running a DX Brake Booster. I thought about it and came to the conclusion that maybe I am applying too much break pressure because of this and it's causing exessive heat. Is this partly true?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zerovandez &raquo;</TD></TR><TR><TD CLASS="quote">I am still running a DX Brake Booster. I thought about it and came to the conclusion that maybe I am applying too much break pressure because of this and it's causing exessive heat. Is this partly true?</TD></TR></TABLE>
No.

The brake pad itself will see the same amount of pressure from the caliper for a given stop whether you're pressing harder on the pedal yourself or whether a larger booster is assisting it more.

The only ways to create more heat for a given stop are to increase the weight of the car or to increase the speed of the car.

Provided you're not unnecessarily riding the brake pedal, all brakes are in proper working condition (i.e. no stuck calipers), and you're not speeding excessively for no reason (i.e. winding it up to 90 when you know there's just another stop sign a block away), then there is no problem.

 

Thanks Targa. You've been most helpful.

 

brakes get hot but sizzling hot. i dont think so. maybe at track day. something is rubbing. (pads and rotor) are the rotors a bluish color after driving for a while.

 

Not at all. Everything on the car is relativley brand new. Just got done with the build. The rotors aren't discolored at all. So this is not normal?

 

You're fine. Quit worrying

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teamworxek9 &raquo;</TD></TR><TR><TD CLASS="quote"> brakes get hot but sizzling hot. i dont think so. maybe at track day. something is rubbing. (pads and rotor) are the rotors a bluish color after driving for a while.</TD></TR></TABLE>
Have you ever touched a rotor immediately after stopping from a 30-minute drive around town? You may not feel as much radiant heat as with a session at the track, but if you touch a rotor you're still going to get burned.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
Have you ever touched a rotor immediately after stopping from a 30-minute drive around town? You may not feel as much radiant heat as with a session at the track, but if you touch a rotor you're still going to get burned.</TD></TR></TABLE>

Precisely

 

i understand what you are saying but he said it sizzled. that seems pretty hot. if they are not discolored your fine.

 

bump

 

No need for a bump, the problem is solved. He is fine.