B&M 70380 - B&M ShiftPlus Electronic Shift Improver Kits

XanderWiFi · 06-21-2010, 04:44 PM

Anyone have any experience with this product? Seems enticing and it is in ion's Aleromod.com upgrade page. It is also cheap but the benefits to be gained. Here is the link on summit.

http://www.summitracing.com/parts/BM...n/?prefilter=1

I don't know what they mean pertaining to the level 1 and level 2 modes as far as firmness and things like that are concerned.

[ion] C2 · 06-21-2010, 04:50 PM

Since you have HPTuners (or will lol, sorry), do not buy this.

XanderWiFi · 06-21-2010, 04:51 PM

I see. Thanks for the save. You know you're really going to have to help me walkthrough using that thing right? lol

What are some other things I should just avoid buying altogether because of the tuner? It says it can switch on and off-would be helpful for when you have the tuner and I can't make adjustments right?

[ion] C2 · 06-21-2010, 04:59 PM

Yeah I'll have to talk you through over the phone at least to get things started heheh.

The B&M is risky as is, it intercepts the signal coming from the computer to the transmission and can override the shift pressure. The PCM sets it to a max value of 90, but the B&M could override that. I'd never use that, even for a stock car. When you touch the trans tables, the B&M should never touch your car. I just upped NoSweat83's transmission stuff at ASS, so he's got to remove his B&M.

In the transmission tables, the only thing you really touch is:

Desired Shift Time
How quick each shift is, mine are all around 0.100 sec.

Shift Pressure
I added about 15 to the factory numbers, and made the 2->3 shift just as high pressure as the rest. For some reason from the factory they make the 2->3 shift be a lot wimpier than 1->2 or 3->4.

Abuse Mode
We turn this to Disabled. It makes it so your car shifts hard and fast even if it thinks you're just hot rodding it.

The main thing you deal with in the tune, the most important, is the Spark Advance and the VE Low RPM and VE High RPM... the VE requires a Wideband O2 sensor though. Spark is where all the power is, VE adjustment makes the car run smooth and safely. Without a wideband you can't accurately adjust fuel addition/subtraction for mods like a bigger throttle body, or P&P head, or boost. You can still play with the speed limiter, fan settings, and spark advance (each additional degree you add translates to about 10HP.. hehe)

XanderWiFi · 06-21-2010, 05:02 PM

Got ya. Considering it is my primary vehicle I am all for the safer move...more fun, yes...but always safe.

While I have it on topic, I read your myth article on backpressure. Should I worry with my new high flow cat and pacesetter exhaust (and headers if and when they are made)?

[ion] C2 · 06-21-2010, 05:18 PM

Nope, that mainly is about running open header on an N/A car that may be slightly dangerous. Having long piping helps to keep up exhaust velocity and keeps things moving.

Doesn't apply to me anymore though, with a turbocharger, I can run open downpipe and perform the absolute best, since the turbine spinning maintains exhaust velocity and keeps sucking out the engine.