<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bill Hook &raquo;</TD></TR><TR><TD CLASS="quote">

The clamping force of ITR calipers and non-ITR would be the same since both use 57mm pistons. There is more leverage to be had w/ 11.1" rotors over 10.3", but the difference is less than 10%, based on diameter. Stiffness of the caliper also plays some part, so let's say 10% is total diff.

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whats the differance in the calipers? please keep the post on CALIPERS only.
thanks.

 

Non ITR Calipers, as in?

 

RS, LS, GS, GSR.

 

i dont believe anything is different. MS/ABS, etc - now we're talkin.

 

From a 1998 Honda Press Release:

"For maximum rigidity of the braking system and to provide a short pedal stroke, the front brake calipers are large, stout units that have a higher resistence to flexing and 'spread' under severe braking conditions.

"The Type R, with its larger brake discs, and larger calipers, also uses a refined ABS system, which is 12.3 lbs. lighter than the GS-R. This lightweight system functions wih minimal pedal kickback during ABS operation in had braking situations."

 

Flux: Are you sure that wasn't from 97? I ask because the 97 ITR used a different (and much better) ABS system but the 98+ integras use that same ABS system.

I thought the piston was large but then I can't remember ever putting them side by side.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ElKamino &raquo;</TD></TR><TR><TD CLASS="quote">Flux: Are you sure that wasn't from 97?</TD></TR></TABLE>

I am sure. That is from a Honda release about the 1998 model. I don't have a link to it right now, but I have a copy of it on my desktop (and Palm).

 

You can clearly see that the ITR front calipers are larger than non ITR calipers.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skafia &raquo;</TD></TR><TR><TD CLASS="quote">You can clearly see that the ITR front calipers are larger than non ITR calipers.</TD></TR></TABLE>


the rotor is larger but not caliper stated above. i was told both itr and non
itr "ls,gs,gsr) has the same 57mm piston in the caliper.

i was also told the caliper differs and want to know what the differance is.

caliper not rotor.


please read this quote again, carefully, please.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bill Hook &raquo;</TD></TR><TR><TD CLASS="quote">

The clamping force of ITR calipers and non-ITR would be the same since both use 57mm pistons. There is more leverage to be had w/ 11.1" rotors over 10.3", but the difference is less than 10%, based on diameter. Stiffness of the caliper also plays some part, so let's say 10% is total diff.

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98spec ITR calipers = 1715 calipers. But it is NOT the only model that use the 1715s.

In Japan, these models such as EK9 Civic Type R, Accord / Torneo (DOHC VTEC), Vigor, Odysessy, CR-V, Prelude(BB6 generation)..... etc all use 1715. So it isn't somethin special for TypeR ONLY...

96spec ITR calipers are 1714 which can fit under 14" rims too.

Hope this help.

 

coo coo so 1715 and 1714 are like product number or id right?

ok so which caliper does gsr's have, the 1714?

 

Yes they're ID# kinda thing. Me and my friends like to go by that.

Yes GSR's are 1714 as I remember. More convenient for some ppl because u have better braking power than SiR(1614) calipers but u can still have a lot of wheel choices on 14" and 15" size.

 

ic, so what differs from 1714 and 1715?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Choi &raquo;</TD></TR><TR><TD CLASS="quote">ic, so what differs from 1714 and 1715?

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obviuosly since the rotor size are different, the design of the caliper itself must differ.

and what flux said


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flux &raquo;</TD></TR><TR><TD CLASS="quote">
From a 1998 Honda Press Release:
"For maximum rigidity of the braking system and to provide a short pedal stroke, the front brake calipers are large, stout units that have a higher resistence to flexing and 'spread' under severe braking conditions.

"The Type R, with its larger brake discs, and larger calipers, also uses a refined ABS system, which is 12.3 lbs. lighter than the GS-R. This lightweight system functions wih minimal pedal kickback during ABS operation in had braking situations."
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.Integra &raquo;</TD></TR><TR><TD CLASS="quote">

obviuosly since the rotor size are different, the design of the caliper itself must differ.

and what flux said


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flux said calipers are bigger than gsr but bill hook said its the same. hmm
who's right?
did you also tell me that the calipers from itr and non itr are the same but something
minor was different?

 

The calipers ARE different . the itr calipers use the same brake pads as the NSX .

 

They are different. Not just bigger on the caliper bracket like some subaru, but the actual caliper.

USDM ITR caliper size = Jap spec 98specR+ caliper size.

 

so what is the differance?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bill Hook &raquo;</TD></TR><TR><TD CLASS="quote">As you've read from your other post, it is bigger and stiffer and has more clearance for a thicker rotor (also it mounts slightly different, due to differences in ITR knuckle and hub).

The only thing the same between it and non-ITR is the piston is the same, so they should have the same clamping force, to a large extent. Calipers that flex more aren't quite as efficient, so there would be less clamping force on non-ITR calipers, but I doubt that it represents a significant difference.
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I have no picture documented here. Only pic of 1614 and 1513(?) SOHC non-vtec discs and calipers's pix.

 

Anyone have Pic of a GSR Caliper?

Here is one on a Type R

 

I want to see pics of the piston sizes. The calipers are different but I want to see the piston size to see if there's a clamping force difference. The pads are bigger on the ITR and the caliper itself is larger so either way they are better than the GSR caliper (was that a question or no?) but I'm curious now on the clamping force. 98+ ABS system seems to be exactly the same to me. (ITR and non ITR)

 

wow

i have both calipers sitting in my garage....

turns out the piston size is the same ~47mm ID and ~57mm OD

so in theory the clamping force of the non ITR caliper should be greater since the same force is being applied over a smaller surface area

but the ITR brakes probably still work better due to larger rotors and increased friction due to larger pad = more surface area = more friction

 

wow good informations. so the itr caliper bracket is also shaped differently? since
the nuckle is different? anyone have pics?

haha people must hate me right now cause im asking too much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ElKamino &raquo;</TD></TR><TR><TD CLASS="quote">I want to see pics of the piston sizes. The calipers are different but I want to see the piston size to see if there's a clamping force difference. The pads are bigger on the ITR and the caliper itself is larger so either way they are better than the GSR caliper (was that a question or no?) but I'm curious now on the clamping force. 98+ ABS system seems to be exactly the same to me. (ITR and non ITR)</TD></TR></TABLE>

I believe folks don't factor in pad size difference b/c the force is just spread over a larger area, hence you have no net difference. Rigidity is part of the equation too, as flex equals lost clamping force.

Go to NASIOC.com and look at the brake knowledge FAQs. There are several brake engineers there (Michael Romano, Orson ****, etc.).

Ask Brian at Fastbrakes if you want confirmation on piston size.