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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Mon, 27 September 2004 12:48
 
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to start things off
found this in a post
"You have more travel in the pedal as you now have more fluid to move thru the RT132 twin pot calipers. IIRC the T18 master cylinder is an a direct bolt on upgrade for the TA22 unit, and you go from 11/16 to 13/16 in size. (Corrections anyone?)."
read that the sprinter is a 13/16 master cylinder so would that make the pedal firm enough?
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Location:
Brisbane
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 00:31
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Umm not really sure that I can be of that much help, but if you are thinking about MX62 cressida struts, another thing so investigate is RA60, RA65, SA63 struts (I actually swapped SA63 struts into my MX62 cressida, mainly for the better off the shelf spring options, and slightly bigger brakes). The camber between MX62 -> R/S6X celicas seemed to be then seemed to be very close to the same. The celica struts I'm talking about are 258?/22mm vented single piston things.
I had to reverse the struts to fit them in my car, was just a matter of putting the left on the right, and the right on the left  With the flexible hoses brake hoses I just zip tied them to the original mounting points with no dramas (couldn't use the original ones as per stock exactly as they had the wrong angle or something, so I bent them down and then zip tied to them if I recall)
Also another thing to think about is braking bias, when I put the SA63 struts in mine, the bias was shocking! I wasn't thinking that there would be that much difference, but OMG I was wrong :S Fixed the problem by installing the SA63 bias valve tho!
Also is it possible to use a MX62/ R/SA6X master cyl? MX62 is 7/8th and R/SA6X is 15/16th, might be good options?
Haven't had any dealing with the RT struts, so I don't really have much to add, although I think they are good in the fact that there is good upgrades available? (hilux 4 spot calipers and pug disks? or I might be confused and thinking about different struts  )
Cheers
Wilbo
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 01:16
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you can actually use the 405 vented pugeot disc with the twin piston RT132 calipers if you space the calipers apart by about 3-4mm.
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 06:27
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i think original sprinter m/c is 7/8th cant remember. the important thing with chosing the correct master cylinder bore diameter is to go with the same diameter as the calipers the car original came with. eg if the calipers the car came off used a 15/16th m/c, thats the size you want to use. also with changing m/c's check the depth at the back, the part the rod acts upon. very important.
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Registered:
November 2002
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 06:47
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| EVOSTi wrote on Tue, 28 September 2004 16:27 |
also with changing m/c's check the depth at the back, the part the rod acts upon. very important.
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I can't agree more having learned this the hard way, with my RA23 with RT132 struts, Hilux calipers, Pug rotor's, SA63 m/cyl and original ('23) vaccum booster. Make sure the rod in the booster pushes the piston in the m/cyl its full travel. Word.
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 06:54
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i wouldnt have thought of it but i had just finished covering master cylinders at tafe
best way to measure is measure the length of the rod protruding from the booster compared to the m/c mating surface, and the depth of the m/c compated to the booster mating surface, if that makes sense.
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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 07:48
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Before you think too much about the brakes associated with those struts, think about the geometry they both will give - the Cressida stuff has a larger stub axle angle than both the RT132, and your current AE86 strut, which once installed, will increase positive camber.
For that reason, I'd use the RT132 struts as the basis for your brake upgrade, with the added advantage of getting bigger wheel bearings too. You'll need to address shock draft and height also, but they can be easily cut down to suit, and you can install a Pug 406 rotor also to get the vented disc rotor, along with the 2 spot callipers relatively easily also. You can also rotate the strut assemblies to have the calliper on the front to make plumbing alot easier.
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Tue, 28 September 2004 10:53
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taking everything into account
i am thinking of just doing the cressida strut caliper and disk then another steering arm the same length as the stock sprinter one (RA60?), turning the strut around as you have pointed out and get some ra60 roll centre adjusters with 2 degree neg camber to straighten up the wheel angles
the cressida pads are much bigger then the RT ones so i guess they wouldnt be much of a difference with a 950kg sprinter plus i like the look of vented rotors better then solid ones!
do you think the cressida calipers would give me a soft pedal or uneven brake bias? anyone done this and know from experiance?
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Location:
Brisbane
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 01:15
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Are you using the stock AE86 lower control arms? If so I don't think that RA6X arms fit to the ball joint do they? I thought there was a size difference (i may indeed be wrong on this tho!)
Also, seeing as I'm pretty sure that MX62 and SA63 kingpin angles (and hence camber) are pretty close to the same, why don't you want to go to RA6X struts, as they have bigger brakes again than the MX62's.
Cheers
Wilbo
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 01:28
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the angle at which RA65 struts sit on the RA65 is greater than on the AE86/AE71/RA2* and hence would create positive camber.
I would go with the RT132 struts. Just go into a self serve wreckers and do some test fitting on an AE71/KE70 - they are the same.
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Location:
Brisbane
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 01:58
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| THE WITZL wrote on Wed, 29 September 2004 11:28 |
the angle at which RA65 struts sit on the RA65 is greater than on the AE86/AE71/RA2* and hence would create positive camber.
I would go with the RT132 struts. Just go into a self serve wreckers and do some test fitting on an AE71/KE70 - they are the same.
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Yeah thats fair enough, but if he is keen on using MX62 struts (which he seems to be), I thought that he might like to know that I'm pretty sure that the camber will be close to the same between RA6X and MX62 struts (but RA6X struts have bigger brakes).
I also think he should go the RT132 struts!
Cheers
Wilbo
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 07:08
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oh ok
u have a good point there wilbo666
bout the lower control arms i was going to use mx62 ones as i have heard they were longer and use ra60 steering arms so i can both fit roll centre adjusters and put them on the lower control arm with the bigger ball joint
THE WITZL
i am trying to stick away from using the RT twin piston setup for the reason i dont wanna change my master cylinder...
im going to wreckers this weekend and going to do some measurements they have a RT132, mx62, and a ke70 wagon (think)
i'll take a angle guage, tape measuring tape and report back...
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Location:
Brisbane
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 08:49
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| Flogbag wrote on Wed, 29 September 2004 17:08 |
oh ok
u have a good point there wilbo666
bout the lower control arms i was going to use mx62 ones as i have heard they were longer and use ra60 steering arms so i can both fit roll centre adjusters and put them on the lower control arm with the bigger ball joint
THE WITZL
i am trying to stick away from using the RT twin piston setup for the reason i dont wanna change my master cylinder...
im going to wreckers this weekend and going to do some measurements they have a RT132, mx62, and a ke70 wagon (think)
i'll take a angle guage, tape measuring tape and report back...
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Whoa, the MX62 arms are longer...MUCH MUCH longer! lol
I think that MX73 arms are a little more realistic, not 100% sure? I wounder how RA6X arms fit into the picture....
I don't think changing the master cylinder should steer you away from the RT132 struts....as I suspect either way you are going to have dramas with the brake bias anyway! Is there any reason that you don't want to consider using the RT132 master and bias valve?
Cheers
Wilbo
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Location:
cambo
Registered:
May 2002
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 11:56
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ill have a look at what size master cylinder RT132's have and what size wheel cylinders they have in the back
as for hilux and pug dont have the money...
i guess its all up to wat i find when i go get some measurements
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:01
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not all that expensive, but yeah more so than what your contemplating. if you do it all yourself you can have it for between 500-800 depending on where you get your parts from.
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:06
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what do u mean by rose jointed for camber adjustment on the lower control arms???
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:09
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:10
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yeah i shoulda resized those
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:18
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nice...
where did u get them from and how much?
was the control arm just cut then they were bolted on?
different bushes?
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:22
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i would always go with vented over solid
reguardless of size/pistons
because of fade reduction and mu temp on the pads
and the ae86/4age is a lightweight combo
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:29
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they are custom jobbies i was lucky enough to obtain
they are just cut, with blocks bolted to the ends and the threaded rose-joint going through the middle with a nut for camber adjustment. as you can see there is still enough thread to throw a few more degrees of neg camber in
there are no bushes. you can probably obtain the rose joints yourself and get an engineer or someone to make them up. i have to mention tho that they are HIGHLY illegal for street use.
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:32
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it looked that way...
oh well, ill have a look at the wreckers and get back to u if i have any other questions
thanks for the info it was greatly appreciated
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I supported Toymods
Location:
sydney.au
Registered:
August 2002
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Re: vented single piston OR twin piston solid
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Wed, 29 September 2004 12:36
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ps. average rose joints dont last long on road cars because of the vibration of the crap roads
(half as long if your in sydney)
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Thu, 30 September 2004 07:05
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how longs not long? been in current car 2 years, previous car 5.
no obvious signs of wear. but if they do fail, IM FUCKED!
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Thu, 30 September 2004 08:25
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lol thats reasuring
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Location:
Sydney (Campbelltown...!)
Registered:
December 2003
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Re: vented single piston OR twin piston solid
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Thu, 30 September 2004 08:31
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think im going to put off this for a while now
got a letter in the mail from the epa bout excessive smoke from my exhaust (valve stem seals) and have to fix that now...
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Location:
cambo
Registered:
May 2002
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Re: vented single piston OR twin piston solid
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Thu, 30 September 2004 08:54
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Really? EPA sent you a letter? thats a little unusual isnt it?
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