Re: Kelsey hayes or single piston calipers better ?
[Re: can.al]
#1170273
02/01/12 11:44 PM
02/01/12 11:44 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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slider single piston calipers (cheap/troublefree). '76 A body or FMJ for as said the 2.75" piston. Get the caliper to match your hose location plus want the caliper mounted on the opposite side of the spindle that the hard line frame tab is on so the flex hose goes across
live every 24 hour block of time like it's your last day on earth
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Re: Kelsey hayes or single piston calipers better ?
[Re: dogdays]
#1170276
02/02/12 01:09 PM
02/02/12 01:09 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
OP
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OP
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Kalispell Mt.
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9" drums will stop it also, my real question is how much better if any are the 4 piston ones? I am planning on putting a really big small block in it with high gears for the open roads around here and I may need to stop in a hurry when a heard of antelope cross the road. If the difference is very tiny then I will probably go with the single piston one but if there is a significant difference I will deal with the hassles of hard to find stuff.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Kelsey hayes or single piston calipers better ?
[Re: HotRodDave]
#1170277
02/02/12 10:13 PM
02/02/12 10:13 PM
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Joined: Mar 2003
Posts: 18,678 Fresno, CA
Jim_Lusk
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I've had to bring both down from freeway speeds (well, 75 or so). I think the four piston, when right are better, but not enough to negate the wheel choice options and overall cost. With that said, we have late discs on my sons' big block/four speed a-bodies and we've also had K-H discs on my son's 383/4sp autocrosser Barracuda and other cars. They both work well.
I know this sounds like I'm not definite, but my reasoning for the late model discs was strictly for wheel choice. If it was easy to go 4.5" pattern on the K-H rotors, then all my cars would have them......
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Re: Kelsey hayes or single piston calipers better ?
[Re: astjp2]
#1170281
02/03/12 01:54 AM
02/03/12 01:54 AM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
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I have both set ups, actually 3 single piston set ups and one KH so cost is not gonna be much different. In your pics of the home made brakes it looks like you have a lot of wasted rotor surface area to me
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Kelsey hayes or single piston calipers better ?
[Re: dogdays]
#1170284
02/03/12 01:42 PM
02/03/12 01:42 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
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I have crushed a bunch of them crown vics and they are no where near 5000 lbs
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: Kelsey hayes or single piston calipers better ?
[Re: ahy]
#1170285
02/03/12 02:56 PM
02/03/12 02:56 PM
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Joined: Jan 2003
Posts: 75,043 U.S.S.A.
JohnRR
I Win
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I Win
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Posts: 75,043
U.S.S.A.
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Quote:
The Kelsey Hayes are more difficult and expensive to maintain. I'd go single piston.
Quote:
If you need more braking than the single can provide I'd go aftermarket. The Kelsey multi piston may be just a bit better than the single piston but a lot more expensive. Might as well spend the extra money on Dr Diff's setup. The stock setup with good semi-mettalic pads has a lot of stopping power.
Sounds like you are basing your choice on cost and not actual performance , he said he already have the KH setup so cost osn't a factor in his case.
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Re: Kelsey hayes or single piston calipers better ?
[Re: HotRodDave]
#1170286
02/03/12 04:26 PM
02/03/12 04:26 PM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
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master
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Posts: 4,785
Utah and Alaska
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No but the ford explorer is supposed to be 5000 GVW and that is what I am using for the calipers and master. Most people dont know that the explorer and Grand Cherokee use the same brakes, the parts interchange, so the availability to get them at the salvage yard is higher than the crown Vic. I went to a local yard and found 2 crown vics and 26 explorers/mountaineers plus several jeeps. The jeep rear brackes fit an 8 3/4 with minor trimming. For 80.00 I got all for calipers, rotors, mounts, and the Master/portortioning valve. Two new front bembo rotors for the crwon vic can be had for less than 200.00. I wanted to use the explorer rotors but he offset is wrong to fit the drum spindles. The availability of parts was the largest concern, besides cost. I can get any part at just about any part store. The parking brake cables will be made to the correct length by a local brake shop, cost is somewhere around 30.00 each. Another advantage is I did the whole conversion design by myself. It is more than adequate compared to the origianl discs. If someone want a pair of brackets, I can get them cut out when I get my steel ones done. That one bracket in the pic is only a mock up part made of 1/4" aluminum for fit. Quote:
I have crushed a bunch of them crown vics and they are no where near 5000 lbs
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Re: Kelsey hayes or single piston calipers better ?
[Re: JohnRR]
#1170287
02/04/12 10:41 AM
02/04/12 10:41 AM
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Joined: Jan 2007
Posts: 7,664 IN
ahy
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master
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Posts: 7,664
IN
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Quote:
Quote:
The Kelsey Hayes are more difficult and expensive to maintain. I'd go single piston.
Quote:
If you need more braking than the single can provide I'd go aftermarket. The Kelsey multi piston may be just a bit better than the single piston but a lot more expensive. Might as well spend the extra money on Dr Diff's setup. The stock setup with good semi-mettalic pads has a lot of stopping power.
Sounds like you are basing your choice on cost and not actual performance , he said he already have the KH setup so cost osn't a factor in his case.
I see you have a set or two to start with. If you drive the car much, it will need brake service. Track days and "canyon carving" can wear the brakes down pretty fast. When it comes time to re-new, the cost issue pops back up. Plus with the extra (and old) pistons, liklihood that one will leak or stick is high and the parts cost issue comes up again. I don't know what high po pads are available for the Kelsey. I know there are some good ones for the single piston (Firm Feel carbon mettalic for example). That's another consideration.
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Re: Kelsey hayes or single piston calipers better ?
[Re: kilroy]
#1170289
02/04/12 01:26 PM
02/04/12 01:26 PM
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Joined: Mar 2005
Posts: 862 Iowa State fan
kilroy
super stock
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super stock
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Posts: 862
Iowa State fan
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Which by the way the 12.44 is 5% longer than the large 11.75 brake and 18% longer then the stock 10.5 brake. Thats alot more leverage.
Last edited by kilroy; 02/04/12 01:30 PM.
1973 Charger, former SE, former auto
I'm not trying to be difficult, it comes naturally....
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