996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

RWD Conversion Complete...one word...AWESOME!!!

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Old Jul 9, 2006 | 01:46 AM
  #106  
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Originally Posted by Me_qwkr
well thie viscous thing is all B.S.. lets see two of my japaness cars the skyline and 240 came with the viscous diff... now after about 500hp they say to just dump it and get a 1.5 way diff.. but honestly if you want to keep the diff alive then do the following... Get a diff cooler and also change the oil out of the diff ever 3k miles...

Hey also what are the cons of doing this... I mean all i gotta do is drop my drive shaft and there we go? If so i am doing it tommorw when i get my baby back...

Hey Marksi... ur lucky u got only one cop on ur street...The first time i came home with the Skyline at 3 am i woke up almost my entire neightborhood.. I got a note in the mail the following day from EVERYONE saying if i dont stop being so loud that actions would be takin against me... so you know what.. NOW I COME HOME EVEN LOUDERED AND FASTER... One night i almost hit a guy walking his 5 year old son on his bike.. at 2am.. The dad was like hey u know kids live around here... I responed..
"Sure but i didnt know we had crack heads like you walking them at 2am.." LOL
 
Old Jul 9, 2006 | 07:41 AM
  #107  
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Three things come up to my mind:

1. CAN ANYONE TAKE FOTOS AND DO A DIY ON THIS??? P L E A S E ?
2. Can anyone provide the website of Guard to check their LSD's?
3. This issue on the viscous coupling is it really an issue?

If removing the drive shaft (just the drive shaft) is a simple job, I'll be taking it out on the summer and for the ocasional track use and putting it back in for the winter...
 
Old Jul 9, 2006 | 07:46 AM
  #108  
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Originally Posted by Me_qwkr
well thie viscous thing is all B.S.. lets see two of my japaness cars the skyline and 240 came with the viscous diff... now after about 500hp they say to just dump it and get a 1.5 way diff.. but honestly if you want to keep the diff alive then do the following... Get a diff cooler and also change the oil out of the diff ever 3k miles...

Hey also what are the cons of doing this... I mean all i gotta do is drop my drive shaft and there we go? If so i am doing it tommorw when i get my baby back...
That's a good idea on the diff cooler...any recommendations on a brand or type to us? Where would the placement of it be?
 
Old Jul 9, 2006 | 12:08 PM
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Originally Posted by Me_qwkr
your right he came out with a gun my came out with crack...but like two days later that crack head started shooting at my house cause he thought someone was outside his 3rd level window trying to break in...remind you there was no balcony to the window he shot at.... The cops came and took the following items away... One CREATE of LIVE GRENADES, 2 Russian made old skool AK-47, a set of nickle plated 1911 45's, 2 shotguns, and 2 more other machine guns one looked like it may have been an AR15 but they carried it in a blanket out...

So yeah I feel you... I totally feel you... Now i go a different way home..LOL
where the hell do you live??
 
Old Jul 9, 2006 | 12:18 PM
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Its great that you can do this conversion so cheaply. However, the problem with the diff heating up and seizing is a REAL one - especially with higher HP cars. The 9ff 2WD conversion entails several important (for longevity reasons) enhancements. First and foremost is the oil cooler for the diff. Additionally, your 1 and 2 gears need strengthening. Not sure about X50 cars, as those are rumored to be strengthened.

Bottom line, these care are too complex to simply take things out and expect everything will be fine. The AWD system will always send minimum 5% of the power to the front diff. Now that its been diverted - you have to ask yourself where that extra 5% is going - and whether that system was *designed* to take that extra stress.

Next...you then ask yourself what that 5% of power pushing against a resistance that has been completely eliminated now looks like...10%...15%?

I dont want to rain on the parade...but I've seen how extensive the 9ff 2WD conversion is. Granted the kit includes an LSD from the GT1 and other bits, but still it would be a shame to see parts of your gearbox, then engine dribbling down the road behing you...tick tick tick...
 
Old Jul 9, 2006 | 05:30 PM
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Originally Posted by SDboosted
Its great that you can do this conversion so cheaply. However, the problem with the diff heating up and seizing is a REAL one - especially with higher HP cars. The 9ff 2WD conversion entails several important (for longevity reasons) enhancements. First and foremost is the oil cooler for the diff. Additionally, your 1 and 2 gears need strengthening. Not sure about X50 cars, as those are rumored to be strengthened.

Bottom line, these care are too complex to simply take things out and expect everything will be fine. The AWD system will always send minimum 5% of the power to the front diff. Now that its been diverted - you have to ask yourself where that extra 5% is going - and whether that system was *designed* to take that extra stress.

Next...you then ask yourself what that 5% of power pushing against a resistance that has been completely eliminated now looks like...10%...15%?

I dont want to rain on the parade...but I've seen how extensive the 9ff 2WD conversion is. Granted the kit includes an LSD from the GT1 and other bits, but still it would be a shame to see parts of your gearbox, then engine dribbling down the road behing you...tick tick tick...
Blah.....
 
Old Jul 9, 2006 | 06:38 PM
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Originally Posted by SDboosted
Its great that you can do this conversion so cheaply. However, the problem with the diff heating up and seizing is a REAL one - especially with higher HP cars. The 9ff 2WD conversion entails several important (for longevity reasons) enhancements. First and foremost is the oil cooler for the diff. Additionally, your 1 and 2 gears need strengthening. Not sure about X50 cars, as those are rumored to be strengthened.

Bottom line, these care are too complex to simply take things out and expect everything will be fine. The AWD system will always send minimum 5% of the power to the front diff. Now that its been diverted - you have to ask yourself where that extra 5% is going - and whether that system was *designed* to take that extra stress.

Next...you then ask yourself what that 5% of power pushing against a resistance that has been completely eliminated now looks like...10%...15%?

I dont want to rain on the parade...but I've seen how extensive the 9ff 2WD conversion is. Granted the kit includes an LSD from the GT1 and other bits, but still it would be a shame to see parts of your gearbox, then engine dribbling down the road behing you...tick tick tick...
I'm no mechanical engineer, but I will have to take issue with your input in bold. I think that the biggest part that gets effected by taking out the front drive shaft, front diff, and front axels is the geometery of the suspension as it wasn't dialed in for having 100+ lbs off the front. How can the AWD system send 5% down to the front when the front isnt there? You have eliminated a lot of rotational mass that makes the tranny work not as hard. That extra power that you refer to doesnt go anywhere because you've elminated the end location of that power. Again, I'm not saying that the conversion wont slightly negatively effect the car in certain ways but not the doomsday things you refer to. I'm not driving a 900HP race car where everything has to be dialed in perfectly. And it would also seem that you may have an incentive to overly worry people to sell your conversion kit which I think is very very expensive.
 
Old Jul 9, 2006 | 08:16 PM
  #113  
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Originally Posted by USCTrojanMan29
I'm no mechanical engineer, but I will have to take issue with your input in bold. I think that the biggest part that gets effected by taking out the front drive shaft, front diff, and front axels is the geometery of the suspension as it wasn't dialed in for having 100+ lbs off the front. How can the AWD system send 5% down to the front when the front isnt there? You have eliminated a lot of rotational mass that makes the tranny work not as hard. That extra power that you refer to doesnt go anywhere because you've elminated the end location of that power. Again, I'm not saying that the conversion wont slightly negatively effect the car in certain ways but not the doomsday things you refer to. I'm not driving a 900HP race car where everything has to be dialed in perfectly. And it would also seem that you may have an incentive to overly worry people to sell your conversion kit which I think is very very expensive.
this is exactly the point. The TT's gearbox is not used to seeing *all* the engines power. GT2s have a stronger gearbox.

the conversion kit includes much more than just the conversion...a significant part of the cost is the GT1's LSD, then there's the transmission upgrade etc...

I hope all is well with your conversion. I'm not trying to sell you a bridge but rather, I'm just recounting a conversation I had with some engineers regarding this exact topic when we were doing our product training. If you're gonna burn your candle brighter...better make sure you get more wax.
 
Old Jul 9, 2006 | 10:03 PM
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How do you think the gear box feels, even in AWD mode, with my GT700 kit?
 
Old Jul 10, 2006 | 03:15 AM
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Martin,
great to hear you LOVE the RWD conversion done to your car.

Now, how about those pics???
 
Old Jul 10, 2006 | 02:08 PM
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Would be nice to have Stephen chime in again...
 
Old Jul 11, 2006 | 12:14 AM
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Originally Posted by Divexxtreme
You can NOT be serious?!
Definitely NOT serious!
 
Old Jul 11, 2006 | 12:44 AM
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None of you guys that are doing this rear wheel drive conversion have any sense. The people at Porsche are smarter than all of you put together. If it was designed to be an RWD car, Porsche would of made it that way. If you want a rear wheel drive turbo, get a raise and buy a GT2. Silly rabbits, tricks are for kids.
 
Old Jul 11, 2006 | 12:49 AM
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Originally Posted by Gemballa GTR
None of you guys that are doing this rear wheel drive conversion have any sense. The people at Porsche are smarter than all of you put together. If it was designed to be an RWD car, Porsche would of made it that way. If you want a rear wheel drive turbo, get a raise and buy a GT2. Silly rabbits, tricks are for kids.
I did!!!!
 
Old Jul 11, 2006 | 01:02 AM
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Originally Posted by SDboosted
Its great that you can do this conversion so cheaply. However, the problem with the diff heating up and seizing is a REAL one - especially with higher HP cars. The 9ff 2WD conversion entails several important (for longevity reasons) enhancements. First and foremost is the oil cooler for the diff. Additionally, your 1 and 2 gears need strengthening. Not sure about X50 cars, as those are rumored to be strengthened.

Bottom line, these care are too complex to simply take things out and expect everything will be fine. The AWD system will always send minimum 5% of the power to the front diff. Now that its been diverted - you have to ask yourself where that extra 5% is going - and whether that system was *designed* to take that extra stress.

Next...you then ask yourself what that 5% of power pushing against a resistance that has been completely eliminated now looks like...10%...15%?

I dont want to rain on the parade...but I've seen how extensive the 9ff 2WD conversion is. Granted the kit includes an LSD from the GT1 and other bits, but still it would be a shame to see parts of your gearbox, then engine dribbling down the road behing you...tick tick tick...
X50, Turbo S and GT2 cars all have the same exact transmission. The FWD output shaft is covered in the GT2 by a cover plate. You can not damage your transmission onj the above cars by changing to RWD only because you HAVE a GT2 transmission from the factory.

To answer your question, the 5% torque goes to the rear wheels.
 

Last edited by Turbo Fanatic; Jul 11, 2006 at 01:13 PM.


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