"The Ultimate Mustang Driveshaft" with Free UPS-100% Satisfaction Guaranteed
Legacy TMS Member
Joined: October 8, 2005
Posts: 12,395
Likes: 29
From: Medina county, OH
You mean the short throw shifter, right? Not to our knowledge. We do have several customers who use the MGW if that helps. As far as aftermarket aluminum driveshafts go, we don't think that you'll find one out there that offers more clearance for short throw shifters than ours.
Robert
Robert
Thread Starter
Banned
Joined: November 30, 2007
Posts: 218
Likes: 0
Each day this week we have taken at least two new orders for our 3.5 inch shaft. This tells us that you members are seeing the benefits of this shaft and we appreciate your trust in us.
Robert
Robert
Thread Starter
Banned
Joined: November 30, 2007
Posts: 218
Likes: 0
Just wanted to let members know that when you are in 4th gear your driveshaft is turning the same RPM as your engine 1:1 When you go into overdrive the driveshaft is then turning approximately 30% faster than engine RPM. These shafts which are rated at 8044 RPM 1/2 Critical Speed and 5036 FT-LB Torsional Yeild are more than capable.
A brief explanation of driveshaft critical speed:
A brief explanation of driveshaft critical speed:
Every driveshaft has a critical speed. Critical speed is the point at which a rotating driveshaft begins to bow off its normal rotating centerline.
Driveshafts begin to vibrate as they approach critical speed. If they are operated at near critical speed for an extended period, they often fail. This can damage the vehicle and possibly injure persons nearby. Remember the 8044 RPM of these shafts is 1/2 true critical speed.
Driveshafts begin to vibrate as they approach critical speed. If they are operated at near critical speed for an extended period, they often fail. This can damage the vehicle and possibly injure persons nearby. Remember the 8044 RPM of these shafts is 1/2 true critical speed.
Legacy TMS Member
Joined: January 9, 2005
Posts: 6,982
Likes: 6
From: New Carlisle, Ohio (20 miles north of Dayton)
Hey Guys,
I will try to help Robert out a little to answer you guys questions.
Dan,
You will not see any gain on a dyno with this mod. Some say it frees up 5 to 8 hp at the wheels. But I don't think there are any good numbers to prove this. But while I have the competitions driveshaft and I can speak on what the benefits are for a lighter driveshaft. You can really feel this mod in your rearend. (butt-o-meter).
The car will accelerate faster from a stop light and the engine will rev up quicker. This is something you can really feel everytime you leave a stop light. To put it in other terms... imagine this. If you had to roll over a 16 lb log or a 50 lb log laying on the ground. Which would take less effort? This mod is worth the money spent!!!Scott
Legacy TMS Member
Joined: June 23, 2004
Posts: 2,147
Likes: 9
From: Pittsburgh, PA
I am by far NOT an expert, but I thought you would see a gain on the dyno. I could understand you won't see a gain at the crank, but shouldn't you see a gain in RWHP. What I am trying to say is the engine will put out the same amount of hp, but the wheels will gain some.
Legacy TMS Member
Joined: January 9, 2005
Posts: 6,982
Likes: 6
From: New Carlisle, Ohio (20 miles north of Dayton)
Hi Chris,
I have read alot about these driveshafts before I bought my Spydershaft. I have no dyno proof of what I am saying. I have read that they will free up from nothing to about 5-8 hp at the wheels. Again I have no proof of any numbers on the dyno. However...my butt-o-meter tells me a lot. The car really does accelerates faster at all rpm's. You can really feel the benefits of this mod. It is well worth the money. But I just can't say it will show up on a dyno. I will be on Brenspeeds dyno this Friday. But I have changed so many things...driveshaft, delete plates, longtubes and they are putting in cams. I will not be able to say what came from what! But buy a driveshaft...it is worth the money!!
Scott
Legacy TMS Member
Joined: October 8, 2005
Posts: 12,395
Likes: 29
From: Medina county, OH
I can say when I went from factory 17" bullitts to 18"x9" chrome deep dish bullitts that it cost me almost 20 rwhp and tq..... by that experience I would think that you'd see some kind of gain. 
Legacy TMS Member
Joined: January 9, 2005
Posts: 6,982
Likes: 6
From: New Carlisle, Ohio (20 miles north of Dayton)
I was present at this dyno pull and Tom is right. Those wheels and tires cost him about 20/20. Has anybody done a before and after dyno pull on these lighter driveshafts?? Has anyone done a before and after dyno pull that will prove or disprove this myth?
Guys who have installed the 3.5" shaft--does this eliminate any of the clunking when shifting etc? (This is usually attributed to the 2-pc stock driveshaft)
