Greddy Type S Purplehead VS Blackhead

[11000RPM]

Hi all,

Anyone knows the differences between these 2 BOVs? I'm using Blackhead but the sound is not like SSQV or those type of hgh pitch sound. Mine is more to Psshhhh... type of BOV. Damn boring now... And, the sound is super soft.

Boring boring...

 

[jinkl-]

tighten the spring, both colour same lerr

 

[11000RPM]

Hi JinKL,

Thanks for your reply...
How to tighten the spring? I already set it to hard setting, still pshhhh...
Aih...

:frown:

 

[MitonCT26]

maybe running low boost, maybe your piping to BOV too small...

no probs so far with my Type-S. Whistling all the way. :D

 

[11000RPM]

Owh...

I'm running 0.7-0.8 boost...
Maybe it's because of this, a lot of people also said this...

 

[fahmic99le]

Mine is blackhead also. I'm running stock boost, but the sound is still kkaaacchhiuu... Hell loud..
Try adjust it bit softer, till u get best sound and make sure it doesn't kepish too early..
Happy tryin'..

 

[11000RPM]

OK,

I'll try it...
Thanks bro...

 

[lancer_ajai2]

I'm using the purple head, boost around 0.7 nia and it whistles. U juz need to adjust it softer.