Anybody using a HKS wastegate?

[Lum]

I\'m having some problems with my new single turbo setup. Hopefully somebody can help?
I\'m using a HKS wastegate, It is the special racing wastegate i believe.
It currently has a yellow spring in it which is rated by hks at 0.8-1.1 bar:3Confused
Does this mean my boost controller can hold the boost at 0.8 bar? Because i\'m having real trouble sourcing a lower rated spring! The 0.8 part of the rating is fine however 1.1 bar is too high for a base setting!
Anybody else using this wastegate setup? What spring do you have?
Thanks for any help

[Carl]

I\'m having some problems with my new single turbo setup. Hopefully somebody can help?
I\'m using a HKS wastegate, It is the special racing wastegate i believe.
It currently has a yellow spring in it which is rated by hks at 0.8-1.1 bar:3Confused
Does this mean my boost controller can hold the boost at 0.8 bar? Because i\'m having real trouble sourcing a lower rated spring! The 0.8 part of the rating is fine however 1.1 bar is too high for a base setting!
Anybody else using this wastegate setup? What spring do you have?
Thanks for any help

Hi,
There is an adjuster for the plate that pushes on the spring too,if this is done up tight then you will get the higher pressure setting,and conversly if loosened off the lower boost.It is on the back of the wastegate.
If you have a boost controller then you can adjust the boost to the level that you like as long as it is more or the same as the spring is set too.
If you put say a 7psi spring in,then you can adjust the boost from that boost and above with a boost controller.
Regards
Carl

[kev-yorks]

As Carl said the spring pressure is the min pressure you can set and the controller takes it above this. If 0.8 is too much for you its not a big job to weaken the spring to lower this, then use the controller for your desired boost level. This way if you have a fault with the controller and it stops working it defaults to a weak spring pressure.
Kevin

[Lum]

Thanks for the advice guys.
Carl- Don\'t think my wastegate has a adjuster on it. Where should it be? on the top?
 I have done some net research and it appears i may have the HKS standard wastegate not the special racing version as the guy at sumo power told me when i described it.
I have this wastegate

The spring in it is defo yellow though and does not open till above 1 bar which is odd as RHD japan does not list a yellow spring for the standard wastegate?
I\'ve ordered a blue one from them which is too fit the HKS standard wastegate and rated at approx 0.7 bar hopefully this will fit!
Can anybody confirm which wastegate i have? and if it has a adjuster, where i will find it?

[Carl]

It should be here as in this pic.
Regards
Carl

[Carl]

But as you have said, yours appears to be not adjustable.
Regards
Carl

[nikp]

Lum, I have a 7psi spring if you\'d like to borrow it?

[Lum]

Carl- Thanks for the advice mate, fairly sure mine isn\'t adjustable as there is only a vac hose inlet on the top, no bolt.

nik- That would be a great help mate, means i can get the car properly mapped and boost controller set up this weekend!  i\'ve ordered one but could be a while.
Give me a call/txt-07841820296

[Fats]

Im using the HKS special wastegate, the lowest rated spring is 0.8-1.1 and there not adjustable, surley if the exhaust and wastegate are\'nt to restrictive you should be able to run at 0.8 with out a boost controller no prob\'s

[Fats]

Im using the HKS special wastegate, the lowest rated spring is 0.8-1.1 and there not adjustable, surley if the exhaust and wastegate are\'nt to restrictive you should be able to run at 0.8 with out a boost controller no prob\'s

[Lum]

Do you know what colour the spring is in ur wastegate?
I now think mine may be the HKS standard wastegate.
With the boost controller turned off the wastegate doesn\'t open until 1 bar, if it opened at 0.8 that would be fine.

[nikp]

Lum, i\'ve sent you a text by the way

[Fats]

I bought a yellow spring from RHD japan. it had a purple spring fitted originally with is 1.2-1.4 bar which was a bit high. what size wastegate you using 40 or 50mm?

[strange_days_uk]

I was gonna say RHD sell the springs.  Think lowest is 0.8 Bar.

[Fats]

0.8 is the lowest for the special wastegate, im sure there is lower rated springs for the normal wastegate\'s