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

Why did you switch back from RWD to AWD

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Old Dec 3, 2008 | 09:53 PM
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Originally Posted by TXGold
The only variable was about a 65/35 mix of 93/MS109 gas, with no race file. In other words I put in about four gallons of MS109 and ran this time with a UMW 93 Flash. The Temp was actually either the same or warmer the day of the 8.40 run.

I know this is gay, but I ran this run the morning after I met my Fiance.

it is only gay if your fiance' is a man

so the two runs were with different files and fuels. UMW files are really good, so that may account for a big portion of the difference. Hard to say how much of that was rwd unfortunately.
 
Old Dec 4, 2008 | 06:05 AM
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Question Rwd

Originally Posted by robmd99
It is a totally different experience! Personally, I would never go back to AWD.
Happy Holidays
Robert
Robert, are you running a LSD? Is your car edgy with big power and no AWD?
Thanks
 
Old Dec 4, 2008 | 06:40 AM
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Originally Posted by Prche951
it is only gay if your fiance' is a man

so the two runs were with different files and fuels. UMW files are really good, so that may account for a big portion of the difference. Hard to say how much of that was rwd unfortunately.
NO. There was not a different file used. It was the same 93 Flash on both runs, which is adaptive, but not as much as a UMW Race file would have been.
 
Old Dec 4, 2008 | 04:44 PM
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Originally Posted by TXGold
NO. There was not a different file used. It was the same 93 Flash on both runs, which is adaptive, but not as much as a UMW Race file would have been.

ok, so was the fuel mix pretty much the same. UMW's tune will adjust considerably to higher octane so if you did up the octane, there will be a noticeable difference.
 
Old Dec 4, 2008 | 10:16 PM
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Is anyone with a with the conversion or disconnected drive shaft having PMS lights or issues? My thought is if the car is losing traction and trying to transfer torque to the front, what happens?
 
Old Dec 4, 2008 | 10:55 PM
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Originally Posted by D33PBLU3
Is anyone with a with the conversion or disconnected drive shaft having PMS lights or issues? My thought is if the car is losing traction and trying to transfer torque to the front, what happens?
No PMS issues here. No PSM either.
All of my equipment has been removed.
 
Old Dec 5, 2008 | 09:29 AM
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Originally Posted by D33PBLU3
Is anyone with a with the conversion or disconnected drive shaft having PMS lights or issues? My thought is if the car is losing traction and trying to transfer torque to the front, what happens?

good point. What does the PSM do when the driveshaft is disconnected?
 
Old Dec 5, 2008 | 09:38 AM
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There is still mechanical linkage when the drive shaft is removed.

If ya'll will notice there have been several mentions here that the handling was extremely scary with just the drive shaft removed. When the conversion is done properly(all parts removed not just drive shaft, especially half shafts and drive shafts) there are rarely complaints, aside from track junkies like Kerr. Even then Tom I believe is happy with the way he's configured the RWD.

I have had zero PSM issues in RWD.

Just trying to help.
 
Old Dec 5, 2008 | 10:00 AM
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guess best question is to ask yourself why do you want to switch?? I mean lets be honest your really need to be pushing the car to detect the real differences. If you dont have the ability to really stretch the cars legs, wherever that may be, the bottom line is it may really not matter much?
 
Old Dec 5, 2008 | 10:42 AM
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Originally Posted by tom kerr
guess best question is to ask yourself why do you want to switch?? I mean lets be honest your really need to be pushing the car to detect the real differences. If you dont have the ability to really stretch the cars legs, wherever that may be, the bottom line is it may really not matter much?

Good point. If you arent pushing the limits of the car, then all you are gaining is straight line speed at the sacrifice of additional safety. End of story.

As for the PSM, I had no problems, the car was still planted and stable, but I did feel like my car was grinding gears, may have been due to the lack of LSD and one wheel spinning freely. But either way it was not good with lots of shifting.
 
Old Dec 5, 2008 | 12:48 PM
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I think you guys have me sold. I think I"m going to bugger up my car next year. I want to stretch my legs.
 
Old Dec 5, 2008 | 02:44 PM
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Originally Posted by tom kerr
guess best question is to ask yourself why do you want to switch?? I mean lets be honest your really need to be pushing the car to detect the real differences. If you dont have the ability to really stretch the cars legs, wherever that may be, the bottom line is it may really not matter much?
Fully agree with Tom.

I keep it AWD to use in the snow. Snow tires too.

In the dry, it is so good at what it does and so fast, I don't think I am driver enough to go rwd. It is fun to four wheel drift in awd. I can do that and did it at VIR...first time was NOT on purpose....





Jeff
 
Old Dec 5, 2008 | 02:57 PM
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I am sold on NOT going to RWD. However, I think the big selling point for RWD is the 4-5% gain in Hp. In a 500 hp plus car that is definitely a noticeable difference.
 
Old Dec 6, 2008 | 12:52 PM
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What Tom said is right. My friend did the conversion. I also drove his set up. My conclusion is; AWD for the road, RWD for the track. Even if you can drive well road is too unpredictable, 2 many variables and 2 many unknowns. So when pushing our cars AWD and PSM are serious assets for the road. The other day my friend and I were returning from the local race track. It started to rain and road was getting damp and slippery. There was no contest. My car walked his and so did most “crap” cars that were on the road. He said in such conditions, he just turns on the radio now and doesn’t even bother – too many close encounters with the opposite lock and with his heart in the mouth. I think this illustrates the point…
 
Old Dec 6, 2008 | 04:28 PM
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excellent points. Unless you have driven a rear engined rwd powerhouse, it is hard to explain the difference.
 


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