pros and cons of your boost controller

[chansigril]

Originally Posted by 2xmks

AVCR

Every time I need to adjust boost I have to adjust my duty cycle. Once it's set it works great. Just very annoying having to change settings, even in learn mode. Would not buy again.

it would seem the blitz sbc id is a little more popular than the avcr. i would agree the avcr is complex and a pain to adjust, i haven't used the sbc, it sounds like a better interface and nicer features.

also good feedback on manual boost controllers. i've known a number of folks with them and it seems there's a wide range of quality

[leonel]

Originally Posted by stealthystu

This is a really good thread!

I have the TruBoost

Pro's - 2 programmable settings and wastegate option
digital display looks pretty sweet on the gauge pod below wideband gauge
easy to adjust
Max boost recorded and easy to monitor

Con's - Boost spike that I can't get rid of (no, just setting the spring to 3 doesn't help)

Are you running internal or external wategates?

[keithmac]

I`ve got an ancient Blitz SSBC.

Pros`s;

Very simple to install.
Very reliable.
Holds boost setting very well, do not need to adjust with ambient temp change.

Cons;

You adjust the gain with a screwdriver..
I have never found an English manual for it.

For what I use it for and how it`s wired (comes on with the Meth pump at 80%+ thottle over 2500rpm) it does great.

[Kibwe Walker]

Hallmans Pro MBC.

Pro - easy install, set and forget, never flutters, never spikes.

Cons - more expensive than most MBC's but it comes with being the best.

[Ondontii]

Grainger Valve.

Pros-

=Ball and spring so it doesnt open until your boost level is reached (which means wastegate doesnt crack open early). That means it works just as good as a couple hundred dollar controller.
-$7
-stays within 0.1psi (i have good gauges and datalogging )

Cons
-wont work if you are stupid and get the bleed hole dirty or dont make it the correct size.
-Wont work if you dont take it apart every year or so to clean it.
-Not for people to lazy to wipe their own butt.
-Wont fix problems that your crappy car/wastegates/installation/low IQ is at fault for.

[a2j]

TruBoost

pros: easy to install (if you know how to), works great, controller and gauge all in one, etc...

cons: not that cheap, if you don't have instruction its pain.

boost spike? maybe. but on e85 its not a problem..

[92RT-TT]

AEM TruBoost

Pro's
Easy to install.
2 boost settings plus an "off" (wastegate setting) with one button push
Looks great
Accurate boost gauge
Never had a boost spike and I log and constantly moniter

Cons,
Expensive



I really like this boost controller, I had a greddy profec spec b and I always got boost spikes and my boost was always changing. This one I have never had a spike other then maybe .25 to .5 a lbs spike once in a blue moon. I got this after a guy from my local club had it and had great results with it. I got it, we set mine to the exact settings that he had and it works perfectly

[veerfour05]

Profec B spec II

Pros
Good control
Low and High settings
Digital display, records your peak
Can set up warning levels
Very little spike (I'm usually spiking about 15.2 and holding 14.7)
Looks great, half din size provides great mounting options, I have mine mounted below my radio.


Cons
A little tricky to get used to, but once you're used to it it's easy.

If you like the Profec I would go with this one, pretty much the same as the old one, but with a digital display.

[BlackStealth]

old Greddy Profec-A (fuzzy logic)
Pros: zero boost spike, and I mean none. When I asked for 14.5psi it was within 14.49 and 14.51 psi which totally shocked me how good it is, verified using emanage datalogger. Super easy to change boost, no need to estimate any stupid duty cycle numbers, what you asked for is what you got. No need to look up a manual when changing boost, as it's just one knob.

Cons: programming fuzzy logic requires you to do a 3rd gear run which where I live means you'll lose your license for 1 week, impound your car for a week, and a $2,000-$10,000 ticket, not to mention increased car insurance for next several years.
At higher boost ie 17psi, the fuzzy logic sometimes gets confused with twin turbos and drops your boost level. This makes it a poor choice if you run upgraded turbos, which is the reason why I got rid of it.

Greddy Profec B Spec II
Pros: It works with upgraded turbos, but doesn't have much of a brain.

Cons: Can't select a particular boost level, you have to estimate duty cycle numbers and see where it got ya with making a couple runs. Often have to refer to the manual as it's confusing.

Observation: Boost numbers fluctuate a little bit as there's no feedback control, this is pretty much true with most electronic boost controllers. I miss that fuzzy logic.

[twospoons]

Originally Posted by BlackStealth

old Greddy Profec-A (fuzzy logic)
Pros: zero boost spike, and I mean none. When I asked for 14.5psi it was within 14.49 and 14.51 psi which totally shocked me how good it is, verified using emanage datalogger. Super easy to change boost, no need to estimate any stupid duty cycle numbers, what you asked for is what you got. No need to look up a manual when changing boost, as it's just one knob.

Cons: programming fuzzy logic requires you to do a 3rd gear run which where I live means you'll lose your license for 1 week, impound your car for a week, and a $2,000-$10,000 ticket, not to mention increased car insurance for next several years.
At higher boost ie 17psi, the fuzzy logic sometimes gets confused with twin turbos and drops your boost level. This makes it a poor choice if you run upgraded turbos, which is the reason why I got rid of it.

Greddy Profec B Spec II
Pros: It works with upgraded turbos, but doesn't have much of a brain.

Cons: Can't select a particular boost level, you have to estimate duty cycle numbers and see where it got ya with making a couple runs. Often have to refer to the manual as it's confusing.

Observation: Boost numbers fluctuate a little bit as there's no feedback control, this is pretty much true with most electronic boost controllers. I miss that fuzzy logic.

+1 for the Profec A!

Pros: rock solid boost control

Cons: sucks trying to get 2 back to back 3rd gear pulls for it to "learn" the boost curve. i've had better luck with the learning mode in 2nd gear.