Blitz Dual Sbc Spec S And Spec R

[L.B.]

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.

[(B1) MR_fanny]

put it this way its like having one quality control guy vs 2 quality control guys on the pie production line. with 2 guys you highly reduce your chances of someone getting a mouth full of broken glass and rusty nails when they take a bite of their pie. 2 solenoids reduces boost spikes and holds higher boost alot better than one.

hope that makes sense, thats my understanding of it anyways

[joeyjoejoejuniorshabadoo]

put it this way... i run a spec S with 265rwkw on 20psi

no spikes

no drama's

full boost from 3500ish to redline

you'll be fine

[L.B.]

put it this way its like having one quality control guy vs 2 quality control guys on the pie production line. with 2 guys you highly reduce your chances of someone getting a mouth full of broken glass and rusty nails when they take a bite of their pie. 2 solenoids reduces boost spikes and holds higher boost alot better than one.

hope that makes sense, thats my understanding of it anyways

put it this way... i run a spec S with 265rwkw on 20psi

no spikes

no drama's

full boost from 3500ish to redline

you'll be fine

sweet, just wondering if i should upgrade to a spec R.

so i assume Spec R for high power/boost like over 18psi and 250rwkw etc

[Beer Baron]

Spec R offers better (finer, faster) control. since it's a dual solenoid set-up it effectively has twice the crossectional area but reacts in the same amount of time as a smaller single. it can give faster spoolup to any boost level. any ebc will hold the solenoid closed until the turbo is near reaching the target boost, it then needs to react quickly opening the valve and bypassing enough air to control the boost at whatever the set amount is. now since most boost controllers need time to react and pass enough air they have to start opening before the target boost. with dual solenoid the point at which they start opening can be set closer to the target boost setting without any spiking.

so really the main advantage is faster spool up/boost build to whatever your target boost level is.