# Brake booster
**URL:** https://forums.speedlife.net/t/brake-booster/96820
**Category:** SON240sx Automotive
**Created:** [June 10, 2006, 10:26pm UTC](https://forums.speedlife.net/t/brake-booster/96820 "2006-06-10T22:26:02Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)
#### Post date: [June 10, 2006, 10:26pm UTC](https://forums.speedlife.net/t/brake-booster/96820/1 "2006-06-10T22:26:02Z")
Hello,
I blew my brake booster again on the track. This is the second times happened. And this is the one from a JDM front clip that only had 60k. What cause this happen so often?? I have a 300zx 30mm aluminum caliper at front and stock rear caliper. I don’t have the heat shield of the turbo. Will the heat come from the turbo effect the brake booster? and can i use the 300zx brake booster? I had a 1993 240sx without abs.
Thanks for any help.
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### Author:  [@G-E](https://forums.speedlife.net/u/G-E)
#### Post date: [June 11, 2006, 4:43am UTC](https://forums.speedlife.net/t/brake-booster/96820/2 "2006-06-11T04:43:51Z")
funny that it would blow… but if you want an upgrade, mid90’s pathfinder booster… it’s nice and short but gives a bigger boost
oh maybe your check-valve failed? replace that too
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### Author:  [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)
#### Post date: [June 11, 2006, 8:21am UTC](https://forums.speedlife.net/t/brake-booster/96820/3 "2006-06-11T08:21:50Z")
> [@G-E](#):
>
> funny that it would blow… but if you want an upgrade, mid90’s pathfinder booster… it’s nice and short but gives a bigger boost
>
> oh maybe your check-valve failed? replace that too
yup. I think it must be something wrong with my brake system or too much heat from the turbo. Which one is the check-valve?? anyone knows why i blow the brake booster twice in a year??
Thanks for the help.
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### Author:  [@shlammed](https://forums.speedlife.net/u/shlammed)
#### Post date: [June 11, 2006, 9:02am UTC](https://forums.speedlife.net/t/brake-booster/96820/4 "2006-06-11T09:02:57Z")
the check valve is the fitting in the middle of the tube from the intake to the brake booster
-Matt
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### Author:  [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)
#### Post date: [June 11, 2006, 9:23am UTC](https://forums.speedlife.net/t/brake-booster/96820/5 "2006-06-11T09:23:06Z")
> [@Jacky Ngai](#):
>
> can i use the 300zx brake booster?
Wont Fit…
Well I tried quickly to get mine to fit and I had problems with it hitting the strut tower etc and not being able to get it on the right angle or have enough room to slide it throu the fire wall etc + clear the strut @ the same time but… I only screwed with it for a minute or two
It may fit but I highly doubt it…
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### Author:  [@Uniac](https://forums.speedlife.net/u/Uniac)
#### Post date: [June 11, 2006, 10:01am UTC](https://forums.speedlife.net/t/brake-booster/96820/6 "2006-06-11T10:01:00Z")
are you using a 300zx mc? or just the booster?
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### Author:  [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)
#### Post date: [June 11, 2006, 11:52am UTC](https://forums.speedlife.net/t/brake-booster/96820/7 "2006-06-11T11:52:06Z")
> [@lucky](#):
>
> are you using a 300zx mc? or just the booster?
me ? lol… if so im using the z32 MC yes, but just the stock S13 booster as the Z32 one was about an inch bigger easy and was hitting the strut tower (as mentioned above) so I said screw it and just used the stocker but kept the Z32 booster just in case I decided I wanted to make it fit, lol.
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### Author:  [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)
#### Post date: [June 11, 2006, 9:28pm UTC](https://forums.speedlife.net/t/brake-booster/96820/8 "2006-06-11T21:28:16Z")
> [@shlammed](#):
>
> the check valve is the fitting in the middle of the tube from the intake to the brake booster
>
> -Matt
Do u have any pic that can show me what is the check valve?
Thanks alot.
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### Author:  [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)
#### Post date: [June 13, 2006, 7:03am UTC](https://forums.speedlife.net/t/brake-booster/96820/9 "2006-06-13T07:03:04Z")
anyone knows why i blew the brake booster twice a year? Please help. 😢
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### Author:  [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)
#### Post date: [June 13, 2006, 7:10am UTC](https://forums.speedlife.net/t/brake-booster/96820/10 "2006-06-13T07:10:37Z")
> [@Jacky Ngai](#):
>
> anyone knows why i blew the brake booster twice a year? Please help. 😢
Im almost positive that there is a Rubber Diaphram etc inside the Booster and if the Rubber dries out (which they do) then the Diaphram no longer seals and it would seem then as if its “blown”
Someone correct me if I’m wrong thou…
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### Author:  [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)
#### Post date: [June 13, 2006, 8:08am UTC](https://forums.speedlife.net/t/brake-booster/96820/11 "2006-06-13T08:08:55Z")
is your turbo top mount?
if you overheat it it will fail.
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### Author:  [@mr200](https://forums.speedlife.net/u/mr200)
#### Post date: [June 13, 2006, 11:16am UTC](https://forums.speedlife.net/t/brake-booster/96820/12 "2006-06-13T11:16:47Z")
Is your M/C leaking into the booster?
It doesn’t take much brake fluid to nuke the diaphragm.
But my first guess would be heat.
Turbos get kinda hot 😉
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### Author:  [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)
#### Post date: [June 13, 2006, 3:54pm UTC](https://forums.speedlife.net/t/brake-booster/96820/13 "2006-06-13T15:54:49Z")
> [@Sasha (Turbo)](#):
>
> is your turbo top mount?
>
> if you overheat it it will fail.
No. i have the stock t25 turbo and stock manifold. but i dont’ have the heat shield that bolt on the manifold. How can i lower the tempature of the brake booster? can i use something to wrap the brake booster??
Thanks
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### Author:  [@TM1](https://forums.speedlife.net/u/TM1)
#### Post date: [June 13, 2006, 4:55pm UTC](https://forums.speedlife.net/t/brake-booster/96820/14 "2006-06-13T16:55:42Z")
> [@Jacky Ngai](#):
>
> [quote=Sasha (Turbo)]is your turbo top mount?
>
> if you overheat it it will fail.
No. i have the stock t25 turbo and stock manifold. but i dont’ have the heat shield that bolt on the manifold. How can i lower the tempature of the brake booster? can i use something to wrap the brake booster??
Thanks[/quote]
It’s not heat then…
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### Author:  [@spilner](https://forums.speedlife.net/u/spilner)
#### Post date: [June 13, 2006, 4:56pm UTC](https://forums.speedlife.net/t/brake-booster/96820/15 "2006-06-13T16:56:26Z")
Im pretty sure we used an S12 booster on an S14 for extra clearance, but it might have just been the master that we swapped. Either way it works well.