400RWHP

Sounds nice. Is it progressive based on throttle position or does it shift hard even during putting around town times? Also does it for sure get rid of that hesitation between 2nd and 3rd?


Regards

99lightning

my 2-3 cut out seems to be solved and i can break 3rd gear loose too.

Shifter

What I'm getting at is can it do this.

400RWHP

^This


That is what I'm looking for as well.

black06c230

Wow that vid is pretty cool. Certainly more aggressive shifts.

BI-Performance

The shifts can be made that aggressive yes, but not sure how long your transmission would last at that level. Installing a valve body along with our tune will make a huge difference over stock without shattering the drive train. It just depends how far you want to take it, for example, when I just had my spare trans built to hold the nitrous shot, we built it with much tighter clearances and threw in alot more clutch packs.

That in itself changed the shifting dynamic, it is much snappier and firmer.

The TCU tune is a good start, going from intermediate to super aggressive. If you want more, and valve body and stall with further increase the bark on upshifts. Then, if you want something even more extreme, go for a tighter clearance on the rebuild, and more clutch packs.

I also noticed a much snappier shift by going to a 3.06 gear out back, it revs faster and engages faster on upshift and downshift.

Style_Front

Interesting.

BI-Performance

Roughly a week left fella's, again thanks for the interest and support.

BI-Performance

Last few days of the SALE fella's.

chawkins2001

Just a quick bump as racing season is just around the corner.

jcjmw

Chawkins, I have the higher stall TQ. How will your TCU tune help or improve performance with my higher stall? I read the thread but I am still not clear (sorry, I'm slow) how your tune could improve performance. If you could, can you elaborate more? Thanks ahead for any response.

BI-Performance

In terms of TCU tuning and stall converters, we can make this work more efficiently by revising lock up maps and pressure maps. We also increase tables related to transmission slip since it will throw a code for this eventually. Past this, we do exactly what we do to the current TCU tune.

johnnyblaze

Might be off topic, any luck with C63s? I know some tuners recently discovered a couple things about the blip/TCU tunes in the Speedshift 7 transmissions.

jcjmw

Do you change at which rpm the car shifts at?

99lightning

they can change shift point send your dyno sheet if you want to dial it in

chawkins2001

Yes we can if you would like us too. We would prefer a Dyno sheet to see your curves, but it is not necessary.