thrustmaster tss handbrake sparco mod (UPGRADED SPRINGS) mod

[nobby91010]

Got the thrustmaster tss handbrake sparco mod for the handbrake use only on my rig the handbrake is fantastic build quality etc but lacks IMHO throw length feel and overall strength power needed to pull the brake on etc
the springs used by thrustmaster are short throw about 25mm in length so progressive pressure is realy only 25 mm,
So to find better springs was needed,just so happens i have a load of valve springs from various motorcycle i have owned in the past.
and what fits perfectly are the
SUZUKI GS 550 EXHAUST SPRINGS
SUZUKI GS 750
the ones I am using are the Suzuki gs 1000 exhaust valve springs.
started off first with the gs 1000 spring on its own made about i would say 2 1/2 times more strength needed to pull the handbrake back
now though i have both the original spring and the gs 1000 spring together strength needed now excedes 5 times if not more needed to pull back.
Suppose i could take apart again and measure the forces with a set of scales and a rig to get exact results but hey now the handbrakes progressive spring strength,length are spot on.
The springs can be easily found on ebay,etc for around a tenner a pair

 

[nobby91010]

GS400/GS550/GS750/GS1000 ALL YEARS FROM 1977-1980..PART NOS 12900-45810

 

[nobby91010]

thrustmaster springs rating 8.8lbs
Suzuki spring 55-60 lb
so up to 6.25 times stronger than stock

 

[SaXXXon]

Hi! Strange question maybe, but do you have problems with the tensionscrews keeps unscrewing? Still on original screws and it happens after just a couple of runs

 

[nobby91010]

Hi! Strange question maybe, but do you have problems with the tensionscrews keeps unscrewing? Still on original screws and it happens after just a couple of runs

not had that, with the tension these springs have, the screws are going nowhere

 

[M D Gourley]

the ones I am using are the Suzuki gs 1000 exhaust valve springs.
started off first with the gs 1000 spring on its own made about i would say 2 1/2 times more strength needed to pull the handbrake back
now though i have both the original spring and the gs 1000 spring together strength needed now excedes 5 times if not more needed to pull back.

Thanks for sharing....that's brilliant and I will look into this as well....I did a quick 'Rubber Mod' on my TSS Handbrake a while ago (link below)...but yours looks more adjustable with different spring tensions available.

THRUSTMASTER TSS Handbrake RUBBER MOD

Hello everyone, UPDATED IN BELOW POSTS I have a Thrustmaster TSS Handbrake Sparco Mod and like it a lot, but it does not have a load cell for that progressive feel so it's quite difficult to gauge how far to pull back to get just that right amount...although I may just put a rubber grommet in...

www.racedepartment.com

 

[strawdog67]

Hi! Strange question maybe, but do you have problems with the tensionscrews keeps unscrewing? Still on original screws and it happens after just a couple of runs

Probably a late reply. Had the same problem with tension nut coming loose, solution for me that worked was to replace nut with a nylon insert nut, once that’s on sprint will keep it’s tension. Hope this helps

 

[SaXXXon]

Probably a late reply. Had the same problem with tension nut coming loose, solution for me that worked was to replace nut with a nylon insert nut, once that’s on sprint will keep it’s tension. Hope this helps

thanks! i'll get hold of one of those thanks for the reply!

 

[Diamond12]

Got the thrustmaster tss handbrake sparco mod for the handbrake use only on my rig the handbrake is fantastic build quality etc but lacks IMHO throw length feel and overall strength power needed to pull the brake on etc
the springs used by thrustmaster are short throw about 25mm in length so progressive pressure is realy only 25 mm,
So to find better springs was needed,just so happens i have a load of valve springs from various motorcycle i have owned in the past.
and what fits perfectly are the
SUZUKI GS 550 EXHAUST SPRINGS
SUZUKI GS 750
the ones I am using are the Suzuki gs 1000 exhaust valve springs.
started off first with the gs 1000 spring on its own made about i would say 2 1/2 times more strength needed to pull the handbrake back
now though i have both the original spring and the gs 1000 spring together strength needed now excedes 5 times if not more needed to pull back.
Suppose i could take apart again and measure the forces with a set of scales and a rig to get exact results but hey now the handbrakes progressive spring strength,length are spot on.
The springs can be easily found on ebay,etc for around a tenner a pairView attachment 275287

Probably a stupid question and I'm very late with this but I've just bought the spring and have disassembled but how do I squeeze the springs enough to get them in and put the first nut on. I can get the motorbike Spring on but would like more tension like yours so need the trustmaster spring on too. Any help would be appreciated