auto to manual conversion - please help

[ImpulR33R]

hi

just have some technical questions concerning doing the auto to manual conversion and who has done it before?

RB25DET 5 speed from a coupe into a auto 4 door.

I wish to retain the standard (well sort of standard in my case) auto computer.

things that concern me are the speed sensor?

tailshaft for a 4-door - same as a 2 door? or will the auto 2 peice be similar to a manual 4 door?

and anything else i should know concerning wiring etc.

thanks

Matty

[knore]

Dont do it man!

Why u no likey auto? its faster than manual just not as controllable, less top speed and slower launching.

spend the money buying a 25xx turbo etc coupled with perfect gear changes all the way to redline and no loss of boost between shifts.

Then again, if you wanna drift get the conversion, auto drift is unpredictable compared to manual

[ImpulR33R]

manual is just way better. auto drains to much power and is about .7 to 1 second down the quarter faster.

i have a mate who did a 13.6 in a r31, and need to catch him and go faster.

and people perfer manuals, for resale.

[gatty]

my mate is thinking about oing converison to GTSt for same reasons...

he got quote of around 2500 for all parts

[knore]

if all u wanna do is go faster.. then use the 2grand on mods

[paulr33]

i believe meggala.com has a parts list on his site somewhere, could be for the rb20 r32 though. i recall quotes of about $3000 including parts/labour for it to be done.

[rs73]

Tailshaft is different length I think...

You can get away with Auto ECU but it won't be optimum as it would be cutting power at shift points at certain rpm (still thinking it's auto). May be running a leaner fuel map than manual ECU, SAFC is recommended to fix this. If it's not included in the conversion package, try to get the Auto ECU replaced with manual one at a later stage.

Speed sensor shouldn't be a drama. The worst you get is due to auto/manual diff ratio differences (4.3 & 4.1) , you'd be off merely 4% in speed.

[ImpulR33R]

thats what i thougt, i can only do it and find out.

will keep everyone updated, as i'm sure more people will want to know.

[boj01]

pretty certain auto/manual tailshafts are different, in length and especially the slip yoke