manual gearbox conversion
10-15-2014, 09:49 PM
#1
Racer
Thread Starter
manual gearbox conversion
I know there have been talks about it
maybe someone could throw in some threads to look into
is it doable?
what parts are recquired?
*transmission
*flywheel
*clutch kit
*driveshafts
*shifter
*clutch pedal
*etc?
does a boxster gearbox fit? (6speed from a 3,2?)
is there a factory LSD option?
what's with the ECU/DME? (if my car has a simple cable throtle body, not the drive by wire one) reflash etc?
the car has a rebuilt engine and a aero/gt3 body kit, and it is red, so selling it and looking for another one is no option
the labour costs are no wories since I myself have a fully functional workshop with ramp and all the tools.
thank you for your input
maybe someone could throw in some threads to look into
is it doable?
what parts are recquired?
*transmission
*flywheel
*clutch kit
*driveshafts
*shifter
*clutch pedal
*etc?
does a boxster gearbox fit? (6speed from a 3,2?)
is there a factory LSD option?
what's with the ECU/DME? (if my car has a simple cable throtle body, not the drive by wire one) reflash etc?
the car has a rebuilt engine and a aero/gt3 body kit, and it is red, so selling it and looking for another one is no option
the labour costs are no wories since I myself have a fully functional workshop with ramp and all the tools.
thank you for your input
10-16-2014, 10:31 AM
#2
Instructor
Join Date: Mar 2012
Posts: 198
Likes: 0
Received 0 Likes
on
0 Posts
Generally regarded as not economically viable. It's usually cheaper to sell the tip and purchase a manual.
But rules were meant to be broken. If you have the equipment and skills to complete a daunting project (and the needs go far beyond some garage space and a pair of ramps), then have at it. But the parts costs are high, and many parts are needed.
Missing from your list are electronics. Including the mid / rear wiring harnesses, instrument cluster, and the ECUs that interface with the powertrain, security, and instrumentation. You may spend a long time modifying wiring harnesses and trying to recode ECUs so they work together in a combination that Porsche didn't intend.
If you can find a totalled manual car from the same year with all the parts you need, that would make things easier. But the conversion is by no means simple.
But rules were meant to be broken. If you have the equipment and skills to complete a daunting project (and the needs go far beyond some garage space and a pair of ramps), then have at it. But the parts costs are high, and many parts are needed.
Missing from your list are electronics. Including the mid / rear wiring harnesses, instrument cluster, and the ECUs that interface with the powertrain, security, and instrumentation. You may spend a long time modifying wiring harnesses and trying to recode ECUs so they work together in a combination that Porsche didn't intend.
If you can find a totalled manual car from the same year with all the parts you need, that would make things easier. But the conversion is by no means simple.
10-19-2014, 09:06 PM
#5
Three Wheelin'
Swap 2JZ and tune NOS timing down to the millisecond and it'll run 9s.
But really, you need all parts from the manual car including the ECU. All linkages etc. Your tiptronic is meh, 2002+ cars got the 722.6 Mercedes transmission, and it is superior to the 1998-2001 automatic transmissions.
But really, you need all parts from the manual car including the ECU. All linkages etc. Your tiptronic is meh, 2002+ cars got the 722.6 Mercedes transmission, and it is superior to the 1998-2001 automatic transmissions.
10-21-2014, 10:08 AM
#6
Drifting
No... (short answer!)
It really is cheaper to just sell your current car and buy another with a manual as sfv_rider says. I've got a tip and looked into it...once... then had another beer and forgot about it.
The thing is; unless you get the parts for next to nothing and do all the labor yourself - the bills will quickly add up. Its the labor alone that will kill you as any shop that wants to take this on has to add in a few hours for screw up's. The only positive out of a swap like this is you'll have a manual with three rads although any shop would have to figure out a mod for the plumbing so that it merges into the rest of the rad cooling loop instead of the transmission loop. I could easily see 12 hours labor considering they might have to solve a few code issues afterwards. I'm not even sure how the TCU integrates with the DME - did it come with software set up's unique to a tip option or not? Recoding? Sell your car to someone who wants a tip and then buy something else...
It really is cheaper to just sell your current car and buy another with a manual as sfv_rider says. I've got a tip and looked into it...once... then had another beer and forgot about it.
The thing is; unless you get the parts for next to nothing and do all the labor yourself - the bills will quickly add up. Its the labor alone that will kill you as any shop that wants to take this on has to add in a few hours for screw up's. The only positive out of a swap like this is you'll have a manual with three rads although any shop would have to figure out a mod for the plumbing so that it merges into the rest of the rad cooling loop instead of the transmission loop. I could easily see 12 hours labor considering they might have to solve a few code issues afterwards. I'm not even sure how the TCU integrates with the DME - did it come with software set up's unique to a tip option or not? Recoding? Sell your car to someone who wants a tip and then buy something else...
Trending Topics
10-21-2014, 02:20 PM
#8
It IS doable, but unless the car was a gift from a deceased relative or the dashboard was signed by [insert famous person of choice], it is absolutely NOT worth doing. Post an ad in your regional PCA publication to see if anyone wants to swap - some people get less fond of the manual gearbox as they (or their spouse) get a little older, and a swap is generally easier than going through separate sell and buy transactions.
10-21-2014, 04:28 PM
#9
Race Director
Heh. That's awesome - generally, one does not need to check OP's avatar to confirm whether they're in Latvia. Poor execution on my part.
I would suspect that getting all of the stuff to do the conversion successfully in Latvia might be damn near impossible, but OP has also showed a certain amount of resourcefulness that might come in handy for the acquisition of said parts.
I would suspect that getting all of the stuff to do the conversion successfully in Latvia might be damn near impossible, but OP has also showed a certain amount of resourcefulness that might come in handy for the acquisition of said parts.
10-22-2014, 05:54 PM
#10
10-22-2014, 10:46 PM
#11
Captain Obvious
Super User
Super User
Go for it! I think the Boxter transmission wouldn't work because of the orientation of the transmission. You would end up with 6 reverse gears and 1 forward......I think.
I think the Boxter transmission wouldn't work because of the orientation of the transmission. You would end up with 6 reverse gears and 1 forward......I think.
10-23-2014, 12:58 PM
#12
Race Director
^^ If you could figure out how to actually drive that - safely - that would be kind of awesome. Imagine seeing a 911 fly down the road at 80MPH...backwards...
10-23-2014, 01:09 PM
#13
Three Wheelin'
With 911 this solution would probably greatly improve the handling and performance. No more snap oversteer, engine is now in the proper place, you have boot in the rear, and rear wheel steering!
Those 285 tires on the front and small 225 tires on the rear would make 911 like a Zamboni or a combine, which means overall performance would improve dramatically!
10-23-2014, 08:22 PM
#15
Racer
Thread Starter
thanks guys for the replies, yes the part about Latvia is more or less true, there are very few porsches here, and the main ones are cayennes 
I have my own workshop with all the tools necesary and a ramp and heating etc, the parts well many of those can be found on brittish ebay, there are the most reasonable prices as well as the shipping with couriers is a much better option than the post office or DHL etc
I would gladly pay for the ECU shipping, please contact me via Pm if that is still on, since all that is very rare over here I try to document all my experience, and since I have worked only with beemers, I do like them, porsche for me is a new and interesting chapter, and since I love them I get to do porsches for other people as well as my hobby.
from the experience of beemers it is relatively easy to do a manual swap on them, and no electronic problems are there even with cars up to 2003. basically bolt on job.
if you like to find out more about what kinda bird am I
you can click this link on one of my beemer stories, still have the car today
http://forums.bimmerforums.com/forum...-an-old-diesel
the dream of owning a 996 was chased for 12 years, and to get another one in guards red with black leather interior with aerokit is quite tricky, cause most of them are without spoiler package and usually in black/darkblue/silver colors
and as I plan to slowly collect the parts I might not feel that sudden big bill, but collecting piece by piece would be less frustrating, and the car driveable as well.
I have my own workshop with all the tools necesary and a ramp and heating etc, the parts well many of those can be found on brittish ebay, there are the most reasonable prices as well as the shipping with couriers is a much better option than the post office or DHL etc
I would gladly pay for the ECU shipping, please contact me via Pm if that is still on, since all that is very rare over here I try to document all my experience, and since I have worked only with beemers, I do like them, porsche for me is a new and interesting chapter, and since I love them I get to do porsches for other people as well as my hobby.
from the experience of beemers it is relatively easy to do a manual swap on them, and no electronic problems are there even with cars up to 2003. basically bolt on job.
if you like to find out more about what kinda bird am I
you can click this link on one of my beemer stories, still have the car today
http://forums.bimmerforums.com/forum...-an-old-diesel
the dream of owning a 996 was chased for 12 years, and to get another one in guards red with black leather interior with aerokit is quite tricky, cause most of them are without spoiler package and usually in black/darkblue/silver colors
and as I plan to slowly collect the parts I might not feel that sudden big bill, but collecting piece by piece would be less frustrating, and the car driveable as well.