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Supercharger Spring Advice

Supercharger Spring Advice

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Rob's_Lexx
Junior Member
6
28-08-2020, 12:23 AM
#1
Hi guys,

Some will remember me from LOC and briefly on OJC. I've been off the scene for a while for variouys reasons but now need some advice.

The bypass valve spring on my s/c decided to destroy itself last night and i'm now unable to drive the car without a suitable replacement. The one i had fitted was (i beleive) the original one that looks like a slinky spring inside a biro. I know they did cange to a v-shaped one, and indeed i acquired one a few years ago from TTE, but sent it on to a fellow LOC member (Mr Mole i think) when he was at a loss and needed a spring.

I contacted gord yesterday evening and he advised me contacting bemani (which i've done) and they have said they 'might' have one or two of the original biro slinky spring type ones somewhere, but he couldn't say for sure.

If anyone has one spare or knows where i can get one (either type) then please let me know.

Cheers

Rob
Rob's_Lexx
28-08-2020, 12:23 AM #1

Hi guys,

Some will remember me from LOC and briefly on OJC. I've been off the scene for a while for variouys reasons but now need some advice.

The bypass valve spring on my s/c decided to destroy itself last night and i'm now unable to drive the car without a suitable replacement. The one i had fitted was (i beleive) the original one that looks like a slinky spring inside a biro. I know they did cange to a v-shaped one, and indeed i acquired one a few years ago from TTE, but sent it on to a fellow LOC member (Mr Mole i think) when he was at a loss and needed a spring.

I contacted gord yesterday evening and he advised me contacting bemani (which i've done) and they have said they 'might' have one or two of the original biro slinky spring type ones somewhere, but he couldn't say for sure.

If anyone has one spare or knows where i can get one (either type) then please let me know.

Cheers

Rob

sprinter2012
Posting Freak
2,484
28-08-2020, 02:07 AM
#2
I'm sure someone on here worked out there was a non OEM replacement that could be used on these. Can't think who it was though but hopefully they'll pop up on here...
sprinter2012
28-08-2020, 02:07 AM #2

I'm sure someone on here worked out there was a non OEM replacement that could be used on these. Can't think who it was though but hopefully they'll pop up on here...

Rolex
Senior Member
512
28-08-2020, 04:51 AM
#3
just replace it with a Vacuum By Pass Valve.
Rolex
28-08-2020, 04:51 AM #3

just replace it with a Vacuum By Pass Valve.

sprinter2012
Posting Freak
2,484
28-08-2020, 04:59 AM
#4
Or even better, an electronic bypass valve with a micro switch.
sprinter2012
28-08-2020, 04:59 AM #4

Or even better, an electronic bypass valve with a micro switch.

Rob's_Lexx
Junior Member
6
28-08-2020, 05:25 AM
#5
any links or part number guys? need a quick solution as car is off the road at the min
Rob's_Lexx
28-08-2020, 05:25 AM #5

any links or part number guys? need a quick solution as car is off the road at the min

Sparkystav
Administrator
14,683
28-08-2020, 06:31 AM
#6
whys the car off the road?

you could disconnect the throttle cable to the valve and run with it permenantly open.

OutlawJapClub Admin Team
Sparkystav
28-08-2020, 06:31 AM #6

whys the car off the road?

you could disconnect the throttle cable to the valve and run with it permenantly open.


OutlawJapClub Admin Team

Rob's_Lexx
Junior Member
6
28-08-2020, 09:48 AM
#7
Hey up stav.

I can't drive it because it sounds terrible over 2k'ish revs.

So if I disconnect the cable, what does driving with it open do? I thought the spring shuts the valve? How exactly does the spring/bypass work in regards to the s/c?
Rob's_Lexx
28-08-2020, 09:48 AM #7

Hey up stav.

I can't drive it because it sounds terrible over 2k'ish revs.

So if I disconnect the cable, what does driving with it open do? I thought the spring shuts the valve? How exactly does the spring/bypass work in regards to the s/c?

Sparkystav
Administrator
14,683
28-08-2020, 09:56 AM
#8
The spring reopen the bypass when you let off, taking the throttle cable off will leave it open all the time so the charger is bypassed all the time.

OutlawJapClub Admin Team
Sparkystav
28-08-2020, 09:56 AM #8

The spring reopen the bypass when you let off, taking the throttle cable off will leave it open all the time so the charger is bypassed all the time.


OutlawJapClub Admin Team

Rob's_Lexx
Junior Member
6
28-08-2020, 10:03 AM
#9
Ahhh right I see. So I'd be running the car as N/A then and no boost? Why does it sound so loud when the spring is missing then - thought it had something to do with releasing pressure :-S
Rob's_Lexx
28-08-2020, 10:03 AM #9

Ahhh right I see. So I'd be running the car as N/A then and no boost? Why does it sound so loud when the spring is missing then - thought it had something to do with releasing pressure :-S

Sparkystav
Administrator
14,683
28-08-2020, 11:02 AM
#10
Because the throttle wire pulls the bypass closed, but the spring doesn't pull it back so the air has nowhere to go when you close the throttle so it stalls the charger

And yes you'd just be running it like an n/a with a charger noise lol

OutlawJapClub Admin Team
Sparkystav
28-08-2020, 11:02 AM #10

Because the throttle wire pulls the bypass closed, but the spring doesn't pull it back so the air has nowhere to go when you close the throttle so it stalls the charger

And yes you'd just be running it like an n/a with a charger noise lol


OutlawJapClub Admin Team

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