Brake Disc/Rotor
Ok,...I know a few of ppl here in this cool forum........use 2nd gen prelude suspension parts when doing their lowering....have any of you also used the brake disc/rotor..?.. as it is wider in diameter,and in width....which hopefully will give better braking performance....the one's i intend to use are off a 2nd gen Si prelude,.....:smokin:
hmmmm....ok,..so maybe no-ones even thought of this .......
If it's anything like moving from DX/LX rotors to LXi/SEi rotors you'll need the both front uprights since the caliper mounting bolts will be in different spots.
It may turn out that they would fit, but I doubt that you'd see a big improvement in performance even if they do just bolt on. It might be worth a try though. We'll never know for sure until someone tries.
Mike
Ok,....i still get f****d up with these model designation's....LX/DX......but i figure you're,(89LXi4dr)..talking about carbed models to EFI models.....
I am using the discs off a 2nd gen 2.0l ,(B20A),Si Prelude...and putting them on my B20A Si Accord....
.the discs on the lude are larger in diameter and a couple of mil thicker than the accord...(.still trying to find the reasoning for this.)...
i intended using the complete steering knuckle and hub,...but the lower balljoint is shot on both left and right steering knuckles.....otherwise i would have just thrown them straight on.......
I also have the calipers and mounts to go on too,( from the lude)...although they are just a single pot caliper.....
If i want to just swap discs,...i'll need to change the backing plate too,...as well as taking some metal off caliper mounting bracket for it to fit properly....still need to use the lude calipers tho...so ,...at the mo,..i am replacing both ball joints....both wheel bearings,....helps when you got a mate who can get the bearings half price...:lol .....gotta make me a press tho,...easy enough knocking bearings out,...bit awkward getting them in ....
Performance wise,.....well....this is what i want to find out......i'm a hard demanding driver especially when i'm on a mission....and on our demanding NZ roads the brakes get used abit,....and i get quite abit of brake fade.......so i'm trying to improve my brakes with what i have without having to go to 4 pot calipers,drilled/slotted rotors etc.....which tends to get quite exspensive........
:smokin:
Pete
DX is the lowest model in the US, LX is carberated also, but with power options. LXi has fuel injection and most power options, larger front brakes, rear sway bar, larger front sway bar. SEi is the same as the LXi with rear disks, leather interior and a center armrest for the front seat.
As for performance, the larger disks will take longer to heat up, but since ithey're not slotted, dimpled, or drilled, they'll still cool slowly (compared to the others). If fade is what you're fighting, the faster cooling rather than slower heating rotors will probably make a bigger difference. But you've already got the parts it sounds like so give it a try and let us know if you notice a difference.
Are you running good pads up front too?
Mike
yeh,...i realise using inferior pads wont improve my braking,....the discs are the ventilated type and the pads a slightly larger too,....hopefully this might equate to a little less braking effort,....once i've replaced all bearings etc....i'll give it a good test and let you all know how it went
Pete
I tried to put Prelude brakes on my 87LXi, but I abbandoned it, and went with the 89LXi set that everybody should do. No more potato chip rotors!
The reason I abandoned the Prelude as a donor was because the part numbers didn't match up. I use a site by Majestic Honda www.hondaautomotiveparts.com. This site rules. You can look up parts lists on line (they don't give actual Honda part numbers out but the reference numbers and exploded views are very useful.) (In thanks for their access to the parts list I love to give these guys my business.)
Here's what I found. The Prelude rotor, caliper wheel bearing, steering knuckle/spindle, and all other suspension links are different than either my 87LXi and an 89LXi (a very suitable donor)
When I compared the 87 to the 89 (both LXis) I found the wheel bearing and hub to be the same, the upper and lower wishbones were the same, but the steering knuckle was different. This is because of the caliper and Brake line mounting locations, the suspension geometry is the same! This is very important, because you have no adjustment for camber. With the Prelude, you simply cannot tell whether the steering knucle will mate to the upper ball joint as Mother Honda intended.
If you use an 89LXi don't forget the brake hoses, you will need them.
He's using everything on the upright. The only thing that he needs is for the Prelude upright to have the same ball joint and spindle positions so the suspension geometry doesn't get screwed up. It's pretty likely Honda did this since there are so many similarities between so many of their models.
Mike
the only difference i've found is in the caliper mounting bracket itself....'lude bracket has a bit more metal on it,..nothing a bit of grinding wont fix...otherwise they're the same....also, both my accord and donor 'lude are '86 2.0Si JDM and there seems to be a few differences between jdm and usdm parts used
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