There has been much discussion and results posted regarding the Zchips increases in power with the GSR: Around 50+ hp/tq no mbc, and around 100+ hp/tq with a mbc. Impressive numbers. What are max boost, timing, A/F ratio numbers, etc. for the GSR compared with the MR? What can the expected hp/tq numbers be with the MR?

Is Zeitronics producing a different control unit for the MR and the GSR? If not, how can the Zchip hold back tq, especialy if a mbc is used unless it is turned way down and therefore of no benefit? There is very little discussion of Zchip MR modification. Why?

 

There is very little Zchip discussion anywhere.

 

Scott has always linked people to zchip.net , so that might be a better bet???

 

Nothing much on the web site. zero discussion about the MR. I guess it is only good for the GSR manual. You would think that winning a SEMA award, there would be a lot of discussion in various internet venues. Maybe the product is too new. Interesting to note that in their PR material and written description on the packaging materials, it says that the Zchip will work with stock and modified vehicles although this may not be the case as discussed elsewhere.

 

ya I looked and I couldn't find any valuable info yet. Please post if you find some.

 

Try this for starters if you have not already.


https://www.evolutionm.net/forums/se...u-reflash.html

 

There are a number of ZChip MR owners worldwide. We have shipped to at least 15 different countries thus far.

There are similar gains to the ZChip with stock BCS results on the Evo GSR. After that as with any other tuning method available, the SST transmission torque protection will take over.

With the SST transmissions though however while on the dyno and keeping it in one gear is not a very natural circumstance as the car is constantly shifting so the tq protection is less of an issue outside of the launch.

 

you really should add some graphs for us

 

So without the mbc, depending on dyno, you hit +or-300 ft/lb tq max which is a usable at the wheels number. I don't quite understand your referenced quote. Do you mean to say that if the launch is removed from the equation, or we are only talking about upper rpm driving, than the MR can handle more tq in the higher ranges? This makes sense because the tq drops off quite a bit after 4700rpm. Can the Zchip modify its tables to make less tq down low for MR users while offering more tq and hp up high and then utilize the mbc for these higher rpm ranges?

 

Torque protection usually kicks in at 3400-3700rpms, an area not used a lot in a 6sp twin clutch automatic.

 

is the Z chip worth getting if you already have a custom tune?

 

If you are already tuned and happy with your results, why would you need another tuning interface?

 

wow i didn't think you would touch that one. Can you plz post graphs of the MR with zchip. Also why can't you pull timing in those areas and then just added it back in up top so that the tq protection won't kick in? <-Might be something I am missing

 

Because the torque/SST limiter tables don't just look at "3400-3700rpms" like claimed above.

 

When you are driving the car in a shifting mode, you will not be stuck in 4th gear making pulls. On the dyno or street, if you were to manually insert it into 4th gear and start from a low rpm, it would slip in those RPM ranges.

Driving the car like a normal person, it would be less apparent as the car continues to shift and drop rpms in a different area.