shift point remapping???

vt_on_20s · #1 09-01-2008, 06:44 PM

im looking into putting 3.9 diff gears in my auto vt ecotec. The question is... how much would i be looking at spending to get the shift points remapped because i've been told the diff gears send your shift points out of wack on an auto... Yeah so how much and where is it done. OR is it even neccessary to have them remapped (can i just deal with it)

any help needed. thanks

Noy · #2 09-01-2008, 07:22 PM

From what I heard, im pritty sure dr bob on this website does remapping. Send him a pm

Doctor Bob · #3 09-01-2008, 09:57 PM

if the ppk in the dash is set to suit the new gears & wheel size the shift points will be pretty close but its easy enough to set them up to suit your requirements

Rob

jet_pilot · #4 10-01-2008, 12:44 PM

changing shift points is something ive wondered about for a long time
would this help when going up a hill and the dam box downshift's then you screaming up the hill?
would it make it better for er.....spirited driving?

DND · #5 11-01-2008, 09:52 PM

My one will sit in 4th gear going up a hill sometime it wont kick back until you have the petal on the floor whats the go there ?

Doctor Bob · #6 12-01-2008, 08:45 AM

jet_pilot, the VP has a full hydraulic transmission, the shift points can only be altered by mechanical modifications in the transmission.

DND the shift points in the VT are controlled by the PCM, thet are dependant on road speed & TPS.

Rob

jet_pilot · #7 12-01-2008, 09:12 PM

thank's doc will it make a driffrence with the tension of the kickdown cable?
as in tightening = makes better shift's?

Doctor Bob · #8 12-01-2008, 09:19 PM

tighten the cable & it will hold the gears longer & shift harder.

jet_pilot · #9 12-01-2008, 11:23 PM

excellent (mr burn's style) lol thank's bob will this help spirited driving? or make it worse?

Doctor Bob · #10 13-01-2008, 04:36 PM

it will make it a pain to drive gently though,

jet_pilot · #11 13-01-2008, 05:56 PM

does a shift kit have the same problem?

Noy · #12 13-01-2008, 06:13 PM

I tightend the cable in my vt, bob is exactly right. My car shifts pritty hard and holds the gears. Though yeah its a pain to drive gently..

jet_pilot · #13 13-01-2008, 06:43 PM

what do you mean by a pain to drive gently? does it try to stall at low rpm? looses low down power unless giving it a boot?

pedrotski · #14 14-01-2008, 02:33 AM

How exactly can i tighten these cables?