mine is a torana stub just in case anyone thought it wasnt..
Nissan 4 spots tutorial to LH.
Started by
_rorym_
, Jun 20 2009 12:35 PM
108 replies to this topic
#52
View GaragePosted 23 June 2009 - 09:39 PM
Not specifically referring to the plate brett has shown, it seems that it would be easier to make an adapter that brings the caliper in closer for better wheel clearance with the Torana stubs as the mounting holes are closer to centre...?^^ Have a look at Bretts pic and the rim clearance. Also bearing in mind as I said previously, different rims give different clearences.Thats a 16" in the pic I am guessing...unless I missed what you are refering to?
R
#53
_rorym_
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Posted 24 June 2009 - 06:01 PM
Hmmm..sort of get what you are saying..That would be a bit of trial and error to get right maybe.
Purpose of this one was to allow people with minimal tech knowledge to just do it and have better brakes. There is also the bonus of using thicker/stronger A9X style stub axles which was also a consideration ...the strength side of things I mean. Personally having them both side by side the size of the HX stub dwarfs the Torana one...and as Datto says...stubs do flex like a bastard..so bigger seemed to mean better in this case...for Rocket and my requirements anyway...for a road car?..I would..again personally...be happier with over engineering things like stub axles with big/wide wheels on the front, if all that makes sense?
R
Purpose of this one was to allow people with minimal tech knowledge to just do it and have better brakes. There is also the bonus of using thicker/stronger A9X style stub axles which was also a consideration ...the strength side of things I mean. Personally having them both side by side the size of the HX stub dwarfs the Torana one...and as Datto says...stubs do flex like a bastard..so bigger seemed to mean better in this case...for Rocket and my requirements anyway...for a road car?..I would..again personally...be happier with over engineering things like stub axles with big/wide wheels on the front, if all that makes sense?
R
Edited by rorym, 24 June 2009 - 06:03 PM.
#54
_rocket_
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Posted 24 June 2009 - 07:34 PM
Rory, whats the measurement between the top & bottom ball joint on a LX stub & HX stub ? Is there a difference ?
#55
AbsynthHatch
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Posted 24 June 2009 - 08:12 PM
No difference both 150mm, Rocket
#56
_rorym_
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Posted 24 June 2009 - 09:15 PM
Good...saves me going out to the garage...
R
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#57
AbsynthHatch
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Posted 24 June 2009 - 10:03 PM
I am currently in the middle of doing this conversion and I have what may seem like a silly question but,
The Nissan calipers are to suit a 30mm disc rotor and the HQ discs are 25.4mm. Is it possible or not advisable to use a pair of shims/ spacers on each side of the pads, up against the caliper pistons to reduce the pad to rotor gap.
As Datto mentioned, rotor wear will be now more critical due to the difference in rotor thickness that the calipers were originally designed for.
The Nissan calipers are to suit a 30mm disc rotor and the HQ discs are 25.4mm. Is it possible or not advisable to use a pair of shims/ spacers on each side of the pads, up against the caliper pistons to reduce the pad to rotor gap.
As Datto mentioned, rotor wear will be now more critical due to the difference in rotor thickness that the calipers were originally designed for.
#58
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Posted 25 June 2009 - 06:58 AM
I did that originally with the Wilwoods..no dramas.
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#59
TerrA LX
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Posted 25 June 2009 - 10:17 AM
IS there a record set for how many different sets of calipers fitted to a Torana yet?
#60
ls2lxhatch
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Posted 25 June 2009 - 11:54 AM
Depending on the design of the caliper and the thickness of the spacer there may be a potential for the pads to be ejected from the caliper once worn down to the pad backing plate.The Nissan calipers are to suit a 30mm disc rotor and the HQ discs are 25.4mm. Is it possible or not advisable to use a pair of shims/ spacers on each side of the pads, up against the caliper pistons to reduce the pad to rotor gap.
You should check the design of the caliper to see if this is possible with a the under size disc. If it is possible for the pads to be ejected then you could incorporate a scraper in the spacer design. The scraper would contact the disc making a noise when the pad has worn to its safe limit.
#61
_rocket_
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Posted 25 June 2009 - 01:55 PM
I am currently in the middle of doing this conversion and I have what may seem like a silly question but,
The Nissan calipers are to suit a 30mm disc rotor and the HQ discs are 25.4mm. Is it possible or not advisable to use a pair of shims/ spacers on each side of the pads, up against the caliper pistons to reduce the pad to rotor gap.
As Datto mentioned, rotor wear will be now more critical due to the difference in rotor thickness that the calipers were originally designed for.
When I looked into my calipers the nissan disc listed on the dba cat. was 25mm.Just checked the cat. again and it says 28mm, but sure DBA told me initially 26mm. so well within tolerances.
Edited by rocket, 25 June 2009 - 02:01 PM.
#62
_rorym_
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Posted 25 June 2009 - 02:24 PM
Depending on the design of the caliper and the thickness of the spacer there may be a potential for the pads to be ejected from the caliper once worn down to the pad backing plate.
Held in with pins.
300ZX Z32 are 28MM
R32 GTS-4 are 24mm
R32 GTS-T are 28mm.
R
Edited by rorym, 25 June 2009 - 02:30 PM.
#63
_rocket_
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Posted 25 June 2009 - 02:29 PM
I have been using 3inch nails, gal of course.
#65
dattoman
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Posted 25 June 2009 - 03:13 PM
Your looking at the scrap thickness not the new thickness
Goons
Goons
#66
_rocket_
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Posted 25 June 2009 - 03:18 PM
Everyone knows how slow I drive, so mine will always be new. So Im safe !
#67
ls2lxhatch
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Posted 25 June 2009 - 05:58 PM
In the picture below I can see the pads are held in position by pins however the pins are not designed to take the load when the brakes are applied. The body of the caliper is designed to take the load from the pads when the brakes are applied. If the pad backing plates are pushed beyond the shoulders of the caliper there is not much holding them in place. On many calipers there is nothing holding the pad in place once it is pushed past the shoulder.Held in with pins.
#68
_rocket_
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Posted 25 June 2009 - 08:06 PM
No difference both 150mm, Rocket
Cheers thanks Mark.
#69
_brett_32i_
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Posted 25 June 2009 - 08:15 PM
this is the problem with back yard engineering. 'shell be right' when theyre the things stopping you hitting something, doesn't really fly.
why not disassemble the calliper and machine the mating faces so that your pads will always con tact the caliper shoulder?
why not disassemble the calliper and machine the mating faces so that your pads will always con tact the caliper shoulder?
#70
dattoman
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Posted 25 June 2009 - 08:53 PM
Because the caliper will then need a groove cut again for the Oring to seat... which requires a good mill 
#71
_brett_32i_
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Posted 25 June 2009 - 09:30 PM
you would use a good mill.these are your brakes.
#72
_rorym_
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Posted 25 June 2009 - 10:43 PM
Your looking at the scrap thickness not the new thickness
Goons
DBA catalogue says new in box dimesions.
R
#73
_rorym_
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Posted 25 June 2009 - 10:48 PM
The body of the caliper is designed to take the load from the pads when the brakes are applied.
HQ= 25.4MM
GTS-T= 28MM
Now my trusty..old..calculator says thats 1.3MM each side...Have you measured a pubic hair lately??
I am still sleeping pretty well at night boys. Don't get too hung up on it.
Brett..as Rocket said..Its slightly more then "back yard engineering"..But we all have an opinion I guess and chose to go our own ways. Brett believes/trusts his system, Rocket and I and others trust ours...move on...as Datto says..Nothing to see here!
I started this thread to help others improve their std braking systems..If you have a better mouse trap...by all means start a new thread and walk everyone through the process of modification as I have..dont take up space with alternative opinions on what is better..
I can argue all day the Torana stub axles are not worth scrap metal and flex like sheet..and you wander all over the road under brakes and the HQ/A9x style offer heaps more stabilty......would the average road warrior and his pumped up painted pretty Torana notice?..probably not.
Now I have got that out of my system...Questions???
R
Edited by rorym, 25 June 2009 - 10:57 PM.
#74
dattoman
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Posted 25 June 2009 - 10:54 PM
R32 GTS-T + Z32 300 ZX DBA909 30mm
Theres a perculiar R32 that has a 26mm rotor but its rare
Take a tablet son your still looking at scrap thickness or your catalogue is wonky
Theres a perculiar R32 that has a 26mm rotor but its rare
Take a tablet son your still looking at scrap thickness or your catalogue is wonky
#75
_rorym_
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Posted 25 June 2009 - 11:01 PM
Shut up...I am on my soap box and its late at night...you know what I am like!
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