i have searched and result some posts from last year.
i have recently purchased a Blitz Dual SBC Spec S as im a beginner and been told this should do the job.
Now i realize the Spec R is newer and it has got a dual solenoid allows you to have higher boost and etc. I have read about both the Spec S and R, they seems to have the same functions but am struggling to understand what the main differences are between the single and dual. Can anyone tell me what makes the Spec R better and how does a dual solenoid have advantage over a single. my car has about 173rwkw and it shall not see any track day soon.
thanks
l.b.