Which Boost Controller is BEST?
Forge UNOS MBC
Why spend the money on an electronic controller when essentially they do the same thing? Don't be lazy, it takes only a few seconds to adjust under the hood.
-Carl
Why spend the money on an electronic controller when essentially they do the same thing? Don't be lazy, it takes only a few seconds to adjust under the hood.
-Carl
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- For one, EBCs will produce consistent boost regardless of changes in conditions like barometric pressure etc., which is not usually a huge problem with MBCs for most people, but it is a factor nonetheless.
- Manual boost controllers often involve tuning a around a boost spike, the response of which is more difficult to sontrol, and there is no built-in overboost protection. MBCs will still produce performance gains by raising boost, but much more crude and less controllable gains. With an EBC, instead of just carefully turning a knob and driving around until your gauge reaches a certain peak point, you can calculate the max boost you want to run beforehand, figure out what percent increase that is over stock, and dial that number into the EBC, and be dead-on that boost level all the time from that point on, regardless of any changes to elevation, weather, etc. If tuned correctly, your boost gains and curves will be smoother and more controllable than with an MBC via the Gain setting most EBCs include, which is the rate at which the solenoid opens and closes, which translates into more controllable boost response. Dialing in percentages on an electronic device is much safer and easier than disassembling little machined MBCs and fiddling with springs inside them.
- Most popular EBCs include some sort of boost limit function and usually can be programmed to reduce boost by a user-selectable amount in the event of over-boosting. If you do not have a warning-fearture boost gauge, most EBCs also provide this feature both audibly and visually. Peak hold/warning/playback gauges can be pretty pricey, and for the money of the more affordable EBCs some people feel that this is one more justification for an EBC.
- If you are just going to "set it and forget it" like many do, it's ok. But if you are doing more extensive tuning, especially with upgraded turbos, a good EBC can simplify your boost tuning if you know how to use it correctly. On my SR20DET I had and actually used three different settings on my Blitz DSBC Spec R (Excellent EBC BTW!). My friend used an MBC. Although we were running similar boost levels, I reached and held that boost level much fast and more consistently than he did with his MBC.
I figured since I had the thing turned all the way up and the boost is roughly the same without the MBC I might as well just go without it. A solenoid is still hooked up just in case the methanol doesnt spray and the diverter valve will open if knocking.
care to explain this new setup?
Get whatever is cheaper between the two, I think you'll see similar performance from either. I just bought a used Forge (not the UNOS, I don't care) from Nick @ Buschur for $40 shipped. He still has a black one that looks brand new for only a little more...
Are you saying you are running with nothing connected to your wastegate or with a vacuum source directly connected to your wastegate?
Yep that's what he said.. I had to double take on it too. But he's running meth so he's trying to get around 30psi I'm sure. Also he has a solenoid setup to cut boost if there is a meth fault or knock above a certain threshold.