40 replies to this topic

[2007tungstenGT500]

Part# 4602
Ford
    
Drive Shaft
5.8L Dual Over Head Cam SC GAS (Rear)
    $1,564.10

From www.fordparts.com

Guess this answers my question of will it be cheaper than the aftermarket versions for my 2007 GT500 (assuming it fits).

[SVTSnake]

Call Steve at Tousley Ford....might get a better price that way. If you are a member at SVTperformance.com I believe you get a discount also. He usually has the best prices anyway.

[6-Speed]

Does the 2013 DS fit the older cars?

[2010KonaBlueGT]

6-Speed, on 30 June 2012 - 08:32 AM, said:

Does the 2013 DS fit the older cars?

No. Both trans and pinion yokes are totally different. The trans tailshaft is also different to accomidate the trans yoke. You would have to install a new '13 trans, driveshaft and pinion yoke (not totally sure about the pinion yoke).

I bought my PST carbon fiber driveshaft for right around $1,000 so why even *think* about a 2013 FoMoCo unit?


Phill

[wingsnut]

Anybody know if the 2013 trans/clutch will swap to 07-09 cars?

[03 DSG Snake]

Which aftermarket CF D/S is the best? It looks like PST and DSS are the main ones?

[patrickshelby]

2007tungstenGT500, on 28 June 2012 - 10:16 AM, said:

Part# 4602
Ford Drive Shaft
5.8L Dual Over Head Cam SC GAS (Rear)
$1,564.10
From www.fordparts.com
Guess this answers my question of will it be cheaper than the aftermarket versions for my 2007 GT500 (assuming it fits).

http://www.vmptuning...d=392&parent=88

[Hooper T]

2007tungstenGT500, on 28 June 2012 - 10:16 AM, said:

Part# 4602
Ford

Drive Shaft
5.8L Dual Over Head Cam SC GAS (Rear)
$1,564.10

From www.fordparts.com

Guess this answers my question of will it be cheaper than the aftermarket versions for my 2007 GT500 (assuming it fits).

The Shaft is available for a lot CHEAPER than that.

[patrickshelby]

Hooper T, on 11 July 2012 - 04:34 AM, said:

The Shaft is available for a lot CHEAPER than that.

For how much? Where?
But it does not fit other SHELBY's than the 2013...?...!

[Hooper T]

patrickshelby, on 11 July 2012 - 08:40 AM, said:

For how much? Where?
But it does not fit other SHELBY's than the 2013...?...!

Around a $1000 from Ford, won't know until Friday about fitment, the good news is coming form Ford it can be returned if it doesn't fit.

We may need the '13 output flange and not sure if that is compatible.

[2007tungstenGT500]

can anybody vouch for the improvement this mod brings? i'm on the fence about whether it is really worth the money...

[2010KonaBlueGT]

2007tungstenGT500, on 16 July 2012 - 11:07 AM, said:

can anybody vouch for the improvement this mod brings? i'm on the fence about whether it is really worth the money...

You will not see ANY performance gain from using a 1-piece or carbon fiber driveshaft. At least not anything measurable.


Phill

[Snoopy49]

Didn't Ford go to the CF one-piece drive shaft because of a harmonic vibration above 155 MPH?

[2010KonaBlueGT]

Snoopy49, on 16 July 2012 - 02:39 PM, said:

Didn't Ford go to the CF one-piece drive shaft because of a harmonic vibration above 155 MPH?

I would think safety and strength would be the two top considerations. And hi speeds wouldn't suffer any either.

I've had mine up into the mid to hi 140's and it was smooth as at 55.


Phill

[Afdharley]

2010KonaBlueGT, on 16 July 2012 - 11:18 AM, said:

You will not see ANY performance gain from using a 1-piece or carbon fiber driveshaft. At least not anything measurable.


Phill

Not trying to argue, trying to learn. My physics is elementary at best   Rotating mass would be reduced, thereby reducing the amount of energy needed to spin it, thus releasing more power. Is that not right

[2010KonaBlueGT]

Afdharley, on 16 July 2012 - 04:01 PM, said:

Not trying to argue, trying to learn. My physics is elementary at best   Rotating mass would be reduced, thereby reducing the amount of energy needed to spin it, thus releasing more power. Is that not right

That is correct. The problem is, the rotating mass is so light and close to the center of rotation, you won't realize any gain. Like I said, at least *measurable* gain (i.e. 'trace').

Let's say the DS weighs 40 lbs. The new CF weighs 20 lbs. That's a Delta of 20lbs. If you were to lighten the flywheel by 20lb, you'd very likely be able to see it on a dyno. Not by much, but you would probably still see it. Difference is, the flywheel is somewhere between 14 and 18 inches in diameter so the mass is farther from the center and takes more effort to get moving (i.e. HP). Move all of that weight into a 4" diameter circle and it'll spin up much easier.

There is a mathmatical formula to prove it but I'm no mathametician. I think it was Jay Tucker or Justin Starkey that posted up the best way to understand it way back when so maybe whoever it was will repost, or someone knows where the post is. It might be in JLT's announement that he was selling PST driveshafts.


Phill

Phill

[Afdharley]

2010KonaBlueGT, on 16 July 2012 - 04:43 PM, said:

That is correct. The problem is, the rotating mass is so light and close to the center of rotation, you won't realize any gain. Like I said, at least *measurable* gain (i.e. 'trace').

Let's say the DS weighs 40 lbs. The new CF weighs 20 lbs. That's a Delta of 20lbs. If you were to lighten the flywheel by 20lb, you'd very likely be able to see it on a dyno. Not by much, but you would probably still see it. Difference is, the flywheel is somewhere between 14 and 18 inches in diameter so the mass is farther from the center and takes more effort to get moving (i.e. HP). Move all of that weight into a 4" diameter circle and it'll spin up much easier.

There is a mathmatical formula to prove it but I'm no mathametician. I think it was Jay Tucker or Justin Starkey that posted up the best way to understand it way back when so maybe whoever it was will repost, or someone knows where the post is. It might be in JLT's announement that he was selling PST driveshafts.


Phill

Phill

Ok, I get what you're saying. Was just making sure I wasn't misunderstanding. I'll dig into my son in laws head, he's a engineering mechanic. He'll talk till I get  confused, which honestly doesn't take long when he gets started

[2010KonaBlueGT]

Afdharley, on 16 July 2012 - 04:48 PM, said:

Ok, I get what you're saying. Was just making sure I wasn't misunderstanding. I'll dig into my son in laws head, he's a engineering mechanic. He'll talk till I get  confused, which honestly doesn't take long when he gets started

I'd LOVE to hear his opinion!

Mine is based on less educated opinions.

Hell, I could be dead wrong. I believed for DECADES that a longer stroke (vs bigger bore) gave a mechanical (leverage) advantage over equal displacement from boring, and it got you more torque until I got the real answer and a math equation showing me I was wrong.

I would'a argued the "fact" to my death if it hadn't been shown to me with a very simple forumla.


Phill

[Afdharley]

2010KonaBlueGT, on 17 July 2012 - 07:44 AM, said:

I'd LOVE to hear his opinion!

Mine is based on less educated opinions.

Hell, I could be dead wrong. I believed for DECADES that a longer stroke (vs bigger bore) gave a mechanical (leverage) advantage over equal displacement from boring, and it got you more torque until I got the real answer and a math equation showing me I was wrong.

I would'a argued the "fact" to my death if it hadn't been shown to me with a very simple forumla.


Phill

Next time I meet up with him I'll ask. Hopefully I can keep up with the conversation.  Kid knows cars and is not afraid to get his hands dirty. Just too damn smart to get in a technical conversation with

[2010KonaBlueGT]

Afdharley, on 17 July 2012 - 09:26 AM, said:

Just too damn smart to get in a technical conversation with

Those are the ones ya learn from, bro!


Phill