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In my early drag racing days I broke a lot of u-joints on the 1-2 shift close to 9 grand. Never twisted a driveshaft. Don’t think I ever saw one twist, it’s always been joints, u-bolts or yokes. IMHO I think twisting one our length shafts would be REALLY hard to do.
$600-$1000 carbon fiber driveshaft.... bragging rights?
$130 driveshaft loop (saved my butt many times 40 years ago)..... definite no brainer.
Kurt
Then of course line your transmission tunnel with old tiles from the space shuttle
Last edited by SSNK4US; 11-17-2018 at 02:27 AM.
If everything seems under control, you’re just not going fast enough....
Build thread
MKIV complete kit # 9395 delivered 7/31/18
Rich, sorry if I misunderstood your intentions. Sometimes things that would be obvious in a person to person discussion are not knowable over the web.
FFR MkII, 408W, Tremec TKO 500, 2015 IRS, DA QA1s, Forte front bar, APE hardtop.
How about this for a driveshaft.
B2A4362A-BD29-4DFB-93D8-D1E3EA20AC2B.jpg
Mk4 ordered 1/3/18, IRS, Coyote, T56 Magnum
My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
(Most viewed Roadster build thread on this forum!)
Delivered: 6/17/2017
First Start: 12/30/2017
Completed: 12/7/2019
Legal: 1/30/2020
Member of the Mile-Hi Cobra Club
Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread
Wow!!!
If everything seems under control, you’re just not going fast enough....
Build thread
MKIV complete kit # 9395 delivered 7/31/18
Thank god for removable slip joints or I would have to pull the motor to change a clutch.
https://www.markwilliams.com/holland...s-rr_yokes.gifEC85AEEF-9174-4A9E-B274-05266F0BA3DF.gif
Mk4 ordered 1/3/18, IRS, Coyote, T56 Magnum
One of my Chevelle Club buddies posted this an eon ago... but it is useful info - the angles in the demonstration are exaggerated, but reinforces the need for accuracy...
Driveshaft angles & phasing
John D. - Minneapolis 'Burbs
1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5
2018 Mk4 Roadster w/ Coyote - #9365 - Build Thread Delivery 7/3/18, 1st Start 1/4/19, 1st Road Mile 5/5/19, Legal 6/18/19, In Paint 2/25/21, Done (?) 4/2021
And don't forget about the turbo encabulator.
https://www.youtube.com/watch?v=Ac7G7xOG2Ag
If Brute Force doesn't work, you're not using enough of it.
Basic Stuff: MK4 Complete Kit #8439, Wilwood's, 17" Halibrands. Extra Stuff: Stainless brake and fuel lines, Breeze cooling, Battery mount, SS Roll Bar. Old Fart Stuff: Heater, Seat Heaters, Footbox Fresh Air, Stereo, Keyless ignition, Power Steering, Hyd Clutch.
Young & Dumb Stuff: 427w Dart, TKO600, 3 link Moser M9/Ford 9", 3.5:1, Eaton TruTrac Posi. Graduation Thread
Sounds like a typical day at work for me. Only a room full of engineers could spend an eight hour day developing and documenting a procedure for the extraction and installation of a device used to produce electromagnetic radiation in the visible spectrum produced by energizing a tungsten element encased within a vacuum.
My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
(Most viewed Roadster build thread on this forum!)
Delivered: 6/17/2017
First Start: 12/30/2017
Completed: 12/7/2019
Legal: 1/30/2020
Member of the Mile-Hi Cobra Club
Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread
I think we have drifted away from the original subject...
FFR MK4 #8317, 393 Cleveland, Lunati VooDoo solid roller, CHI 3V heads and intake, TKO 600, Std roadster seats, 8.8 3.55 diff, 17" Halibrand replica wheels, Ford "Magnetic Metallic", silver ghost stripe. (Sold 10/16/21)
You have now entered the twilight zone.
Anyone know for certain if the Metco Safety loop fits an IRS with a T56?
https://www.metcomotorsports.com/pro...p?prod=MDL2500
Chris
Mark IV Roadster #7679
Coyote 5.0, T56, Hydraulic Clutch, IRS, Torsen Diff, Wilwoods, Hydraboost, ABS Power Brakes, Power Steering, & tons more extras.
My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
(Most viewed Roadster build thread on this forum!)
Delivered: 6/17/2017
First Start: 12/30/2017
Completed: 12/7/2019
Legal: 1/30/2020
Member of the Mile-Hi Cobra Club
Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread
My Build Thread: http://thefactoryfiveforum.com/showt...ter-Build-9754
(Most viewed Roadster build thread on this forum!)
Delivered: 6/17/2017
First Start: 12/30/2017
Completed: 12/7/2019
Legal: 1/30/2020
Member of the Mile-Hi Cobra Club
Dave's Cobra YouTube Channel: https://www.youtube.com/channel/UCbk...npK1UZHj4R-bYQ
Agora 1:8 Scale Cobra Build: https://thefactoryfiveforum.com/show...l-Build-Thread
The picture I included with Post #2 is with the T-bird IRS and T5; that should give you a pretty good idea of whether the T56 would fit. Note that I shimmed the differential up 1/4" to get the pinion angle where I wanted it; that in turn forced me to use 3/4" spacers under the loop.
John
MK IV Roadster #8631
Ford 302, Holley Terminator EFI, T5z, 3.55 Rear End, IRS, 17” Halibrand Replicas (9” front, 10.5” rear), Nitto 555 G2’s (275/40ZR17 front, 315/35ZR17 rear), Fast Freddie’s Power Steering, F5 Wilwood Brakes, FFMetal’s Firewall Forward, Forte’s Hydraulic Clutch & Throttle Linkage
https://www.ffcars.com/threads/phile.../#post-4776313
Looked on Fortes web site and could not find the "loop". Anyone have a direct link to it?
MK4 - complete kit - Blueprint 427W - Holly Sniper EFI - TKO 600 .64 - 3.55 3 link - 17" Halibrands
It isn't on the site. Just call him.
Guys,
Here is the link make for our cars:
https://www.metcomotorsports.com/sea...=&stype=&scat=
$129
Well worth the insurance-just like the quick time explosion proof bell housing.
Do it
Martin
Last edited by chrisarella; 02-12-2019 at 09:55 AM.
Chris
Mark IV Roadster #7679
Coyote 5.0, T56, Hydraulic Clutch, IRS, Torsen Diff, Wilwoods, Hydraboost, ABS Power Brakes, Power Steering, & tons more extras.
I got mine a few weeks ago. When I reached out to them, they had just fabbed them but they had not yet been powder coated. That was perfect for me since I ordered my chassis bare, so I got a bare driveshaft safety loop and I'm going to have it PC'ed along with the chassis so they match.
MkIV Roadster build: Gen 2 Coyote, IRS, TKO600. Ordered 10/24/18. Delivered 1/29/19. Engine installed 8/8/21. First start 9/12/21. First go-kart 9/17/21. Off to paint 4/11/22. Back from paint 12/30/22. Build thread here.
Hey everyone,
Totally on board and agree with the need but I am curious how hard and how much time would it take to install on a completed car? If anyone has any tips or insights please share.
Tim
FFR#5539 306FI, T5, 8.8 Rear, Hot Hues Jazzy Blue, Ford TS Stripes, Stock brakes, North Race Cars Axle 5-lug conversion
If you're talking the Metco on a Mk4, my son and I did it in 40 minutes from the time we jacked the car up to setting it back on the ground. If you're talking the Forte unit, it takes quite a while longer, as you have to remove the driveshaft slide it inside the hoop and then reinstall the driveshaft. Those threaded nutserts are quite tricky to get aligned on round tubing.
Scott
Built FFR9457. 351 Windsor, TKO600, 3.73. Fitech EFI. Russ Thompson throttle pedal, turn signal, and trunk pan. Carbon Fiber dash with Speedhut Revolution gauges. Paint by Jeff Kleiner.
Thanks Scott. I am going to be installing a Metco on an MK 3.1. Don't know if that changes anything.
Tim
FFR#5539 306FI, T5, 8.8 Rear, Hot Hues Jazzy Blue, Ford TS Stripes, Stock brakes, North Race Cars Axle 5-lug conversion
That 40-minute number is best case. If you're like me, you'll need some spacers under the loop, which meant longer bolts. Between fabricating the spacers & a trip to the hardware store in Northern VA traffic, the job turned into half a day.
I also had to re-route my brake cables so that they didn't rub the loop. I didn't find that out 'til later in the build.
Still worth doing though.
John
IMG_3369 by jhsitton, on Flickr
IMG_3530 by jhsitton, on Flickr
Last edited by phileas_fogg; 09-18-2020 at 12:46 PM.
MK IV Roadster #8631
Ford 302, Holley Terminator EFI, T5z, 3.55 Rear End, IRS, 17” Halibrand Replicas (9” front, 10.5” rear), Nitto 555 G2’s (275/40ZR17 front, 315/35ZR17 rear), Fast Freddie’s Power Steering, F5 Wilwood Brakes, FFMetal’s Firewall Forward, Forte’s Hydraulic Clutch & Throttle Linkage
https://www.ffcars.com/threads/phile.../#post-4776313
...or spend only 20 bucks on a speedmaster universal loop and spend three days fabricating your own mounting
Anyone experiencing an issue of the loop vibrating on big bumps and hitting a driveshaft?
Build thread
FFR mk4 roadster complete kit, 347 cu in carbed BluePrint engine, TKO600, IRS, power steering, ordered Jan2020, delivered 3/25/20, titled 8/23/20, finished 07/17/2021, graduated 10/06/2021
That would have to be some bump! As you can see from the pictures I posted, there's at least a full inch of clearance between the hoop & the drive shaft.
John
MK IV Roadster #8631
Ford 302, Holley Terminator EFI, T5z, 3.55 Rear End, IRS, 17” Halibrand Replicas (9” front, 10.5” rear), Nitto 555 G2’s (275/40ZR17 front, 315/35ZR17 rear), Fast Freddie’s Power Steering, F5 Wilwood Brakes, FFMetal’s Firewall Forward, Forte’s Hydraulic Clutch & Throttle Linkage
https://www.ffcars.com/threads/phile.../#post-4776313
Build thread
FFR mk4 roadster complete kit, 347 cu in carbed BluePrint engine, TKO600, IRS, power steering, ordered Jan2020, delivered 3/25/20, titled 8/23/20, finished 07/17/2021, graduated 10/06/2021
Dart Little M 406" SBC 800 HP N/A & 1,100 HP on nitrous, 2-spd Powerglide with trans brake, 6,000 RPM stall converter, narrowed Moser 88 3.90:1 spool with 35-spline gun-drilled axles & Torino bearings, custom parallel four-link, custom tube chassis & roll cage NHRA certified for 8.5-sec (only two FFR Hot Rods have this cert).
33 Hot Rod Super Pro Drag Racer Build: 33 HR NHRA Cert Roll Cage Build
OK, so here’s what my issue with driveshaft loop was:
1. It’s attached to the transmission mount in the front, but the back of the loop part is essentially hanging in the air (on the photo - right side)
Which means that the rear part of the loop mount plate was vibrating
2. Since I haven’t used any spacers for the loop itself, it was pretty close to the driveshaft from the top
So on some large bumps it would vibrate in way that it the loop was hitting the driveshaft.
3. Once I installed the “spacers”, the problem seems to go away
(Unless I missed some important part of the driveshaft loop mount instructions, of course)
Build thread
FFR mk4 roadster complete kit, 347 cu in carbed BluePrint engine, TKO600, IRS, power steering, ordered Jan2020, delivered 3/25/20, titled 8/23/20, finished 07/17/2021, graduated 10/06/2021
That amount of shim seems just a bit excessive. I would think you could do with half that much. Also, if your parking brake cables are anywhere close, check to make sure they are not rubbing on the edge of the loop.
I can't remember if I used a 3/8 or 1/2 shim, but it was a fine line between clearing the drive shaft (3 link) and not having the parking brake cables rubbing on it. I ended up "rounding" the edge of the safety loop so that the cables, although just barely touching, will not chafe.
If Brute Force doesn't work, you're not using enough of it.
Basic Stuff: MK4 Complete Kit #8439, Wilwood's, 17" Halibrands. Extra Stuff: Stainless brake and fuel lines, Breeze cooling, Battery mount, SS Roll Bar. Old Fart Stuff: Heater, Seat Heaters, Footbox Fresh Air, Stereo, Keyless ignition, Power Steering, Hyd Clutch.
Young & Dumb Stuff: 427w Dart, TKO600, 3 link Moser M9/Ford 9", 3.5:1, Eaton TruTrac Posi. Graduation Thread
Thanks! I started with half, but i was still able to pull the plate for loop to the driveshaft, so added more. the loop is shifted to the side to reduce the amount of touching the loop as much possible.
I’m actually reconsidering the need for this loop, since it looks like I’m going to be doing mostly street driving with a sane amount of horsepower.
Build thread
FFR mk4 roadster complete kit, 347 cu in carbed BluePrint engine, TKO600, IRS, power steering, ordered Jan2020, delivered 3/25/20, titled 8/23/20, finished 07/17/2021, graduated 10/06/2021