MSD Electronic Boost Controller

[SPOT MY 6]

Has anyone used the new MSD electronic boost controller (pn 7562)? It is only $193 from Summit and has burnout boost control, a programmable launch boost, and comes with laptop software to program and record everything. Looks pretty trick for cheap.

http://www.msdignition.com/tc_26.htm

 

[Sleeper-6]

Bump..........Sounds interesting.

 

[fuzzyGN]

I have one of the original versions on my car. The spool up is incredible. I wasn"t able to get many street miles because something broke on the car while we were testing it on their dyno. I guess 21 dyno runs in 3 hours had something to do with that. Anyway, it is a really trick deal and I can't wait to get back running and do more testing.

 

[idaho gn]

summitt dosent have them to ship till the 31 st

 

[Sleeper-6]

Fuzzy: Can you tell us some more, I'm guessing it's adjusted using a laptop? Any other neat features?

 

[fuzzyGN]

Yes a laptop is used to adjust the amount and to some degree the timing of the boost. We were working with a beta version so not sure how the software actually looks now but while we were testing the box we could adjust the boost vs. time. I had the time start set to my brake pedal. As soon as the brakes were released time would start (tricky to do on a dyno run). We had the boost set to come up instantly to full set point. It got there really quick and held within 1/2 pound no matter where we set it. From talking with the engineer there, you can set the boost vs. time on a curve so that full boost isn't had until XX seconds down the track. Could be just the ticket for fast street cars with limited traction off the line. The other feature is boost hold. We hooked it up to the linelock button for testing to simulate burnouts. I am planning on using it with the Pro-pain instead though. When the Pro-pain is armed, the boost curve will jump up to my new boost level. That way, no adjustments are needed just flip a switch and go.

 

[Sleeper-6]

I like , I like. now this unit can be used as a full time boost comtroller, not just a launch controller? Sorry for all the questions. MSD's description isn' t that great.

 

[SPOT MY 6]

Where does it get the boost reading from? Does it have a fitting for a vacuum line, or do you have to tap into the MAP sensor? Do you have any pics?

 

[fuzzyGN]

This unit takes the place of the stock wastegate control and is used full-time. It uses a 3 bar MAP and two solenoids to control the boost. There is one sol. that controls pressure and one that controls vent. This is the reason it spools so fast. There is no pressure bleeding off until the set pressure is hit (or VERY close to it with high boost) and then they both pulse open/closed to maintain the set pressure. Pretty neat. I don't have any pics but may be able to snap a few this weekend. Not really much to see but a pair of solenoids and a red "box".

 

[MoJoe]

Daily driving?

Drag racing seems simple enough for a boost controller... Bring the boost up to the set point as fast a possible (or at fast as traction allows! and keep it there.

How well does it work for daily driving? Any surge? Is the turbo kept spooled, and you just don't see the boost until you crack the throttle? It seems there is a trade off between response and economy/wear and tear.

Inquiring minds want to know how it REALLY works, not just how the manufacturer SAYS it SHOULD work!

Thanks!

 

[SPOT MY 6]

fuzzyGN, thanks for the reply. So the solenoids and MAP sensor come with the boost controller? Are they built into the box or something?

Thanks again.

 

[J-B Racing]

I don't think that this Unit can be accurate! The Software cannot determine the Cars min. Boost aspect. Example: A Car using two Turbos or even one. Wastegate set-ups are different, some will spool faster, some will spool slower. The Unit I think will not be able to adjust itself quick enough. Don't forget that their are other uNits out there that have been around much longer than MSD. Don't see or hear many Buick people using them!
The only way this can work is on a slight modified Car that would have a min. boost of #10 and then work your way with it.

I.M.O.

Joe

 

[SPOT MY 6]

Originally posted by J-B Racing
I don't think that this Unit can be accurate! The Software cannot determine the Cars min. Boost aspect.

What are you talking about? Do you even know what a MAP sensor is and how it works?

Or do you THINK this and THINK that too?


Obviously the wastegate rod will have some effect on this, but I dont understand your logic.

 

[fuzzyGN]

I don't have many street miles on the unit but it drives just like ANY other boost control method I have had (and there has been a few ). The wastegate rod will have to be lengthened to where it just slips onto the wastegate arm so that the controller does all the control. It reacts instantly and as stated earlier, controls boost to within 1/2 pound up to 18 psi for sure (that is as high as we took it) on a car that maxes the MAF at 3800 to 4000 RPM. In other words, not stock by any stretch of the imagination. The software is taking samples at a s***load per second so it is fast enough. Ever heard of a PID controller? It can control things like temp from ambient to 1400 degrees in 70 second with NO overshoot. Amazing. I think zero to 20 psi boost shouldn't be a problem. I am not sure about the MAP but the solenoids would have to come with the unit otherwise it wouldn't work. I have not seen the final version packaged yet. Hopefully within the next month I can get back there for more testing.

 

[Taffy]

According to the literature, it can only adjust the boost for 12.5 seconds at a time. I wonder if after the boost goes back into vacuum, the timer resets.

Have you guys done any long pulls while in the boost? Like over 20 seconds?

I might have to get one and test it out.

 

[Sleeper-6]

Hmmm ..........Interesting.........

Boost for 20 seconds........I think my head would explode from sensory overload!
I believe that would put me way past stuped fast...possibly all the way to ludicris speed.

 

[FWD turbo]

Hey Taffy, how does this unit compare to the Greddy profec B spec II?

 

[turbo2nr]

Re: Hmmm ..........Interesting.........

Originally posted by Sleeper-6
Boost for 20 seconds........I think my head would explode from sensory overload!
I believe that would put me way past stuped fast...possibly all the way to ludicris speed.

That's funny. Anyone else see "Space Balls"?

 

[BoostKillsStres]

yeah, I couldnt' remember where that line came from, thanks

 

[fuzzyGN]

Originally posted by Taffy
According to the literature, it can only adjust the boost for 12.5 seconds at a time. I wonder if after the boost goes back into vacuum, the timer resets.

Correct, the boost can only be adjusted for 12.5 seconds but then it holds whatever the final number was in the boost curve. Again, this unit works like any other boost control method on the market in normal driving. This one just allows some boost curves to be input in the first few seconds of a run. The reset is usually connected to the brake light switch.