Is there any way that a automatic gearbox of my 3.5l TH can be improved? I mean, i can't even keep up on a 3.0l manual. And that is bad. Can anything be done to it, so i won't loose so much power? Any ideas?
And before peeps say "convert to manual", I've considered it, and its too expensive. Not worth the extra few kw at the wheels.

a higher stall convert would be good not too high but slightly higher than the stock magna one.

also there was a thread not long ago there was a chip in production for autos to make them electronically shift quicker.

from what i can gather the main probs with the auto is 1)Only 4 gears, so the gear ratios are made to be more economic 2)the lag between gear shifts to smoothen out the shifts and 3)Kick down is alot slower.
You could get different gear ratios but your economy is gonna be worse. Dunno about others.

Is there any way that a automatic gearbox of my 3.5l TH can be improved? I mean, i can't even keep up on a 3.0l manual. And that is bad. Can anything be done to it, so i won't loose so much power? Any ideas?
And before peeps say "convert to manual", I've considered it, and its too expensive. Not worth the extra few kw at the wheels.


Hey 3litre Manuals are far from being slow...

you should be more concerend when a Manual Accent or Getz can beat you... If an Auto Version beats you, then considere buying another car..

I have a TH Advance Auto with Dual Fuel and my mate has a TE Exec manual. WE drag each other on a regular basis and its more or less whoever gets off the line first will win..

His car is stock and i have a TH Smoker CAI.

Is there any way that a automatic gearbox of my 3.5l TH can be improved? I mean, i can't even keep up on a 3.0l manual. And that is bad. Can anything be done to it, so i won't loose so much power? Any ideas?
And before peeps say "convert to manual", I've considered it, and its too expensive. Not worth the extra few kw at the wheels.



i reckon ur exhaust slows u down :badgrin: :badgrin:

don't mod your auto,i like beating you lol

only jokin mate, i'll chat to you about it at the next cruise :)

catchya mate

don't mod your auto,i like beating you lol

only jokin mate, i'll chat to you about it at the next cruise :)

catchya mate

mate u can share ur info with all of us on the forums too :confused:

lol

mate u can share ur info with all of us on the forums too :confused:

lol

lol i don't have any full on technical stuff to share with him, was just gunna chat to him about it(talk him into buying my car lol )

a higher stall/torque converter could fix the gear drop down power as it would shoot it up higher in the rev range where more power is made

obviously if u went too big of a converter it would slow it down on a stockish engine imo

how much would a manual conversion cost?

depending on how cheap u get all the parts

2.5K - 6k

How much would a higher stall/torque converter set me back? Anyone got any ideas? Will that make the gear change less smoother? Like in older cars, it just kicks you into the seat when the gear changes... During hard accelerating its fine, but when crusing it would annoy the hell out of me...

hehe, i remember being in ur car, and was it tfv630 or someone (maroon colour, with the **** me off deep dish rims) hopped into the right lane, and he was gaining on you despite u punching it anyway......

and i think his was a manual 3L.

why not jus get a stage2 shift kit. they arnt expensive. are they?

I was going to sugest the above, i had a stage 2 shift kit on my old skyline, and i kept blowing the diff, dam it. A nice cooler and a kit makes a difference. There is an article i have seen floating about on how to do it yourself, i'll try and find it, basically, you increase the opening sizes of certain holes and new ball sping valves etc, give it a try.

a shift kit haha

that would cost heaps

i dont even think anyones made a mechanical shift kit for a magna :nuts:

yeah with the shift kits it allows more oil pressure i think hence the harsher shift and better performance. i think they change the valves i nthe trans

Stick the 5 speed auto with the lower 1st gear in :badgrin: . Although I have a bad feeling that you might be looking at twice the manual conversion price! To be honest I doubt you can even get a higher stall convertor or a shift kit for a Magna.

Are you all OK???
Why mess around with a perfectly good (albeit slow) gearbox.
If you're so worried about being quicker, 2 words people
FORCED INDUCTION!!!
Simple aint it, and for the $$$ figures you are quoting, it seems a lot more feasable and worthwhile.
THEN
when you are still being beaten after investing in you engine, worry about your transmission.

All Those In Favour...................................?

thats a fair call but then once u get forced induction.. ur gonna want a quicker tranny anyways....

+ i'd be suprised if the magna auto would still be in one piece after a couple thrashes with forced induction

yeah, but forced induction may not be suitable for him. maybe he doesn't want to have to fill up every 3 hours, change oil every 5000km or whatever.

maybe he wants to have the fastest N/A magna in aus :confused:

I don't disagree that the standard box could be improved, BUT what I'm saying is, why not explore better options before you worry about it?
Really, if you wanted the fastest N/A car in Aus would you start with the gearbox? Personally I'd look at the basics: Suck - Squeeze - Blow.
Even if you didn't want to go forced, you could still get some damn good gains from N/A mods like an aftermarket computer or even some basic machine work. These (as are most production) engines are designed to run well within their limit, it is not to hard to get some more juice from them with a little tweaking. Agree??

I was just asking wether it is at all possible to do some work on the gearbox. I most likely will work on the engine first before doing anything on the gears... Lots to do under the bonnet... And forced induction is something i MAY do in a few years when the superchargers have matured more in magnas. I hate thouching things that are new on the market.

what would you rather have though? a supercharges auto, or a turbocharges manual? if money is no object of course.

what would you rather have though? a supercharges auto, or a turbocharges manual? if money is no object of course.
A supercharger manual ;)

A supercharger manual ;)
lol...good enough. get a manual! hahaha all problems solved. :P

if we can find somebuild to mod the magna tranny i still think it would beat a manual in hi horsepower applications :D

auto turbocharge less lag :badgrin: :badgrin:

nodz elecky shift kit would be nice

a shift kit haha

that would cost heaps

i dont even think anyones made a mechanical shift kit for a magna :nuts:

yeah with the shift kits it allows more oil pressure i think hence the harsher shift and better performance. i think they change the valves i nthe trans


Some gearbox places machine down the pump or something giving more line pressure and by doing that it increases how hard it shifts and its shift point slightly. any auto box can be shift kitted, just need to know the right peeps. Ive already got my mate who does custom trans for a living lookin into modding the magna auto's. I'll keep you posted


And yeah i think it is me El3ment is refering to ive chopped him twice now mwhahahahahaa

Why not change the final drive gear ratio. One gear. Get your speedo recalibrated. Done.