not that I know of; what would it even do?

 

haha good question I just figured I would ask, I might try and extend the tubes slightly from my MBC to the nipple of the charge pipe, it is somewhet tight fitting and I am thinking that might cause some spiking, who the hell knows, maye just the cold weather. I would blame the WG but sometimes it doesnt spike at all.............

 

How often are you changing boost settings? I have a mbc and set it once and never touched it again. Unless maybe you have multiple maps.

 

i set up a ebc on my buddies turbo vr6. worked great. you can dial in how hard the boost hits and how much overall boost. liek someone said earlier, he had three settings, spring, low, high. for your greddy kit i would just run max boost all the time, but when you get a different kit, then i could see runing different boost levels. my friend drove around on the spring most of the time. would hit low boost for a run, and if the other guy kept up or past him he would hit high boost. hi boost was 400whp, now that was fun.

 

How does your tune take all the playing with PSI? Does a good tune use the map sensor to adjust to the psi your running? Now on the E-Manage doesn't it bypass the Map sensor, how would that effect it?

 

Your usually tuned up to a certain engine load (measured in PSI via the map sensor) so as long as your boost is below that threshold, the tune is still good and will be adjusted

 

If you have an AEM to tune with and have it tuned properly then you can set your boost controller to anything you want. There aren't different maps for different settings, its all one map/ Unless you have nitrous or are running a race gas map but thats a whole different story.

 

I have the E-manage and the only reason why I want an EBC is because of spiking issues, but in doing some reading It seems MBC actually may do a better job. As far as the EBC helping the turbo spool quicker I dont think I can spool it any quicker than it already does, its basically fully spooled at 4,000RPMS

 

it's confusing at first, but if you read the profec bspec II manual, it actually explains everything really well. most confusing thing is the use of set gain and start boost terms interchangeably. they are the same thing.

you have to tune "SET" value (how much boost you want), "GAIN" value (boost consistency) and "SET GAIN" value (when the wastegate will open).

First, the SET % is a percentage of your wastegate spring, where 0% is no increase in boost (running off of the spring) and 100% is like disconnecting the wastegate--essentially spooling up to your turbochargers limit. The use of % is essential b/c the boost controller doesn't know what turbo you have or what wastegate you have--if you were able to put 15psi into the EBC, it wouldn't be able to tell how to make 15PSI on a T88 vs. 15PSI on a Td04. So when figuring out what % correlates to what psi, we recommend start LOW!!! LOL then slowly raise the percentage until you get to the desired boost amount.

Next, SET GAIN:
Your wastegate will stay completely shut until it hits this value, once it hits this value, it may start to creep open. How much boost do you want to run? an example is a 10psi goal, well for starters, set your SET GAIN to a couple psi lower than than 10psi. So set it at 8psi. Then see how your car drives. if it overboosts, set it lower, maybe to 7psi, conversely, if boost falls off, set it closer to 10psi. If the SET GAIN value is like 2psi while your PSI goal is 15, then there is a good chance that you will never reach 15psi b/c the boost will bleed off too early. And if the SET GAIN is set at 14.5psi while your goal is 15psi, the wastegate might not evacuate the boost in time to regulate at 15psi, so you may experience overboosting.

Last, GAIN:
this is usually adjusted last, as it simple adjusts boost consistency. as the manual states: if boost spike occurs, lower the gain value and if boost falls off at high rpm or boost increases as rpm increases, raise the gain value.

check out the troubleshooting section at the back of the manual if you have issues.

PS. as others have mentioned, there are essentially 3 boost settings. off = base boost. low/high: doesn't have to be a low or high boost, they are just names. low can be higher than high or the same, etc. It's as easy as a push of a button to switch boost levels. i used to run 8psi on low, then push the button to 10psi for a little more fun!

hope that helps!

 

Are you set on a greddy profec bspecII boost controller?