It's supposed to be a decent piece-  I worked with Bren as well.  He likes the forge because it clicks when you turn it and is easier to set.  I went with a Hallman pro based on my conversation with the guys a ESP in Sterling, MA (and the fact that I got it cheap off a buddy) They said they no longer carry this model because of oil buildup causing it to stick or some shit like that and recommended the Hallman.  I guess they replaced a number of them for customers.  Either way- as long as you get a quality MBC you'll be all set.  Once Bren is done with the car there's no real reason to ever touch the thing unless you are going to experiment with tuning and logging on your own.  I have no problem tweaking with the Hallman- just move it in small increments and log.

2nd one.  Been running it for about 6 mos with no issues FWIW.  The third cat is def. a restriction.  Bren will tell you the same thing.  We actually had to dumb down my first map to get around the lack of airflow.  The problem with a shorty DP is trying to find a 3rd cat delete pipe that isn't $Texas.  I'm using a nice ceramic coated Stromung shorty- so I just bashed the cat out.  If you ever look inside that 3rd cat pipe you'll see why it's a big restriction.  Solid brick of crap in the way of your airflow.  Only reason I kept a stock pipe there is to pass visual inspection by either police or inspection station.  Still looks like a cat under there.

Enhanced Street Performance in Sterling carries the Hallman.  It seems like at the time I looked for the 3rd cat pipe everyone was out of them- maybe that's not the case now.

ixiz wrote:

I have both for sale
Short DP and 3rd cat delete (race pipe)  - BOSAL NEW

As for MBCs ive tried a couple and i have one of my own but they all have similar issues (except mine)  Very touchy to tune correctly and its hard to regulate its either zero boot or close to max boost.  Example if you like to run 10 psi from the rpm to this rpm on this throttle opening position - almost impossible.   

Personally a street driven car should not be on an MBC

Pm me on a price of the 3rd cat delete shipped to 02420 if you're willing to sell it. Thanks. I'm going to use what my tuner suggests - he wants the MBC so I'm going to use it. My Saabaru ran the perrin EBC and that was fine and he tuned that car. But I'm asking him before I buy the parts this time.

ixiz wrote:

Why do you want an MBC ?

My tuner told me to get it for my tune. Selling that third cat delete? 

mbc's are excellent for max boost clamping
if you have one that is fairly controllable than there is a bleed option.

IF you undertand how turbo controls boost then you can see why for daily drivers a map is still the best option.

I dont doubt his tuning abilities (never doubt any ones abilities)
I just question is he tuning your car the way you want it or the way he thinks you should be driving it ?

Whats the point of having a boost map on MBC ????  (maybe thats a question you should find out first)

boston_errol wrote:

ixiz wrote:

Whats the point of having a boost map on MBC ????  (maybe thats a question you should find out first)

Wondering this myself - I thought a MBC was to manually dial in boost. Though I know for a fact he does something with the boost on the tune. Not sure. The Gig prob knows more tahn me.

This thread has a lot of good info it seems: http://www.iwsti.com/forums/ecu-tuning- … -need.html

I'll have to do some reading

YUUUUP
You should read several times and then refer back to this post what i mentioned.
With a MBC (remember its CAPITAL M=manual)  that means you by pass all control of boost. 

in case you did not know there are several failsafe systems that detects overboost, temp compensation tables, PID controls, and many more....  Your MBC now totally bypass all those features
Lets say your MBC got stuck from crud in the orifice  and your now boosting at 30 psi - guess what ?

No doubt its a tad harder to tune the base map and takes some time and experience so that you dont get the PID in a chase loop for trying too hard to reduce or increase WGDC.  Maybe thats why some tuners take the....  route.

Or wait for this
http://www.ixizconcept.com/ixizmebcs/ixizMEBcs_pd.html

Last edited by ixiz (2009-11-17 22:45:16)

I have seen some good MBCs go for like $60 on nabisco. I think it provides for better boost control and better torque down LOWWEEE