making a d50 trans shift better

S0LJAH · Post by **S0LJAH** » Thu Feb 26, 2009 2:07 am

hey guys

im finally out racing my car and have noticed the d50 trans is a bit of a pig to shift, and im losing time cos of it
any thing out there i can do to help reduce my shifting times

can we make or gear sticks into short shifters etc?

screemin eagle · Post by **screemin eagle** » Thu Feb 26, 2009 10:32 pm

if you swapped the starion tal shaft housing you can use a short throw from that but other than that its now worth it. they do shift like hot garbage dont they reminded me of driving a bus

S0LJAH · Post by **S0LJAH** » Fri Feb 27, 2009 12:34 am

do starions have a short throw gearstick avaliable?
i think that would w2ork with my gbox as is as the shifters are the same i believe?

cant change the tailhousing tho as then my shifter would be too far back

yea the throw in them is balls

Burabuda · Post by **Burabuda** » Fri Feb 27, 2009 10:29 pm

lol same with the early colt 5spd

S0LJAH · Post by **S0LJAH** » Sat Feb 28, 2009 7:30 pm

ok im going to try and make a short shifter out of my stick by chopping the lower ball off and extending it then packing the top mounting point

anyone got any tips suggestions on lengths etc?

S0LJAH · Post by **S0LJAH** » Sun Mar 01, 2009 6:23 pm

ive just been down playing round with my gearstick and working out what im going to do

at the moment the throw is roughly 100mm stock for a 3-4 shift

now looking at things i think im going to go with a spacer which is basically just a copy of this plate here

and as far as adding length between the pivot and the ball i was goin to cut it where i have put the red line through it, or does this bit need to stay the same distance from the ball?

i thought maybe it clicks the "gate" when you go to 5th, cutting below it would just make it easier to weld

any suggestions on how much i should be adding?was thinking 25-30mm
and should i take that much off the top aswell?

S0LJAH · Post by **S0LJAH** » Mon Mar 02, 2009 11:40 pm

i got started today

made up a spacer plate one inch thick and then cut my shifter just above that sqaure peice as i think it is for the gate

i made up an insert also an inch long with spigoted ends and then drilled 1/4 inch holes into the two ends of the stick, this should give it heaps more stregth when i get it welded twomorrow rather than just have two flat ends

i chucked it in my car loosely and it seems to have reduced the shifting distance down to around 70mm from around 100mm stock
will measure it better when i install it fully

still tossing over wether or not to cut the top shaft down aswell any one have any opinions on this good or bad?

turbostellar · Post by **turbostellar** » Tue Mar 03, 2009 1:35 am

looks pretty good so far. nice work

77amc · Post by **77amc** » Wed Mar 04, 2009 12:34 am

Once you test it out I'd be interested in one if you would like to sell one.

Errol

Burabuda · Post by **Burabuda** » Wed Mar 04, 2009 6:49 pm

turbostellar · Post by **turbostellar** » Thu Mar 05, 2009 12:47 am

km119 and km132 uses the same shifter and base as that in the pic above

S0LJAH · Post by **S0LJAH** » Thu Mar 05, 2009 5:10 am

cheers guys put it all in 2nite and it works well

extentuates my shifting problem tho but im now sure its a selector issue with the gearbox, which allows me to push to far to the left so can miss the gate for 2nd and 1st

nah wont be making any to sell, plus im all the way over the otherside of the world

77amc · Post by **77amc** » Sun Apr 12, 2009 8:28 pm

WHen I used to make them for the early Hondas i had, i would end up with about 2 1/2" from gear to gear at the top of the shifter.

Just pm me when you may want to make another. Looks nice.
OH, and I'll weld it back up..

Errol

provar · Post by **provar** » Thu Jul 30, 2009 4:17 am

I'm a bit late, but thought some of you would like to know...

you CAN shave the synchro's down to help shift better. A friend of mine who is a fitter and turner, did it to his daughters honda prelude instead of buying new ones. when from absolute SH$t to shifting like new!

77amc · Post by **77amc** » Thu Jul 30, 2009 7:09 am

How do you 'shave' the syncros down? Isn't it that the teeth around the outside get all chewed up and don't alow it to speed up for the 'next' gear??
Errol

provar · Post by **provar** » Thu Jul 30, 2009 7:47 am

you know how there is two pieces, one sits inside the other with a taper.

you shave the back off the outter one so that the taper's hit each other and not the flat faces at the edge.

dont shave a lot, just enough to get the job done.

he spoke to mechanics first and other knowledgeable sources, nobody else had heard of it being done but nobody could tell him it would be a bad thing either. this was 12months ago and its still running fine.