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Author Topic: # 3838 Vinson / Allison Corvette  (Read 19546 times)
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robfrey
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« Reply #60 on: December 08, 2013, 06:53:26 PM »

We finally figured out what happened to the 4L80e transmission that kept us from backing up the 276mph record run.
Apparently the flat towing  was an issue as we had some parts that had lubrication issues.  John McConnell, our transmission guy and close friend was telling me what he was seeing and he was a little perplexed until I told him how far we were flat towing and then realized what happened.
Now we are wondering how to solve this.
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Stainless1
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« Reply #61 on: December 08, 2013, 07:12:24 PM »

Trailer  grin

yes I am  cheers
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Stainless
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« Reply #62 on: December 08, 2013, 08:34:40 PM »

Is this a common problem when running automatics?
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« Reply #63 on: December 08, 2013, 09:38:03 PM »

Yes, flat towing can cause problems. How far did you tow?  7 miles back to the pits or 2185 miles back to PA?

Geo
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robfrey
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« Reply #64 on: December 08, 2013, 09:51:38 PM »

No, just back to pits.
When I run down to the 7 mile mark, I betting it is over 10 miles to the pits.
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« Reply #65 on: December 08, 2013, 10:13:53 PM »

No, just back to pits.
When I run down to the 7 mile mark, I betting it is over 10 miles to the pits.

How about from the pits to the starting line?  It is amazing how many miles you can put on the salt.  If you ran course #2 then it is a long ways back to the pits.

We have saved a lot of time/miles by not going back to the pits if we don't need to like on license runs.  2 runs on Tuesday and 4 on Wed. without going to the pits except for overnight and to fuel up again.  Some times if we want to run early in the morning we go and get in line and then let cars go by and leave the car in line overnight.

So is the problem the transmission pump only turns when the engine is turning and thus no lube when being pushed or pulled?  Looks like a trailer, dolly or rollback or a manual  smiley.

Sum
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« Reply #66 on: December 08, 2013, 10:37:48 PM »

Does anybody make a free wheeling hub that bolts onto existing hub. Then maybe save a spares?
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salt27
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« Reply #67 on: December 08, 2013, 11:14:38 PM »

Does anybody make a free wheeling hub that bolts onto existing hub. Then maybe save a spares?

racingjunk.com has a set of "towing hubs" for $100.

  Don
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« Reply #68 on: December 09, 2013, 01:03:18 AM »

Learn something new on here all of the time  smiley.





http://www.yenko.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=452693

How easy is the car to jack and change wheels?  You will qualify for the record again  smiley and will have only so much time to get to impound.  No way we could make it in time having to do that also.

How about a tow dolly ....

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Old 09-08-2011, 10:50 PM      #9
rod
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Default Re: Free-wheeling hubs-old style towing
i would really lean toward a tow dolly. the free wheeling hubs will only work with certain body styles. with a tow dolly, back the car on the unit, lock the steering wheel straight and go. when home the dolly can be stood straight up and save space. i towed all around the mid west with a tow bar, and would never ever do that again. tow bars are dangerous when raining [don't ask how i know] are hard to back up and have to be designed just right or they will not track.
with the free wheelin' hubs you still have to have the front wheels on the ground, you still have to have a tow ball and light wires. plus all the time to change tires commin' and goin'.
all in all the tow dolly is best hands down.
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http://classracer.com/classforum/showthread.php?t=33947


... with a 12 volt winch on the dolly tongue or the back of the tow vehicle to pull the car up on the dolly?

Sum
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« Reply #69 on: December 09, 2013, 12:13:23 PM »

Running on Course #1 certainly shortens your distance.  Usually a much longer wait than #2.  I still wouldn't want to chance screwing it up.
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« Reply #70 on: December 09, 2013, 01:37:12 PM »

I think we put 400 miles on our tow rig this year. Part of that was to and from the salt but a huge chunk was on the salt. I would opt for a trailer.
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« Reply #71 on: December 09, 2013, 05:40:39 PM »

Just get one of those hydraulic arms those tow trucks use and mount it on the rear of your tow car - truck etc

Mount a trailer hitch ball upside down on the center of frame of the Vette in the rear , and tow the car where ever you want with the rears off the salt

G Don
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« Reply #72 on: December 10, 2013, 10:38:03 PM »

I think we put 400 miles on our tow rig this year. Part of that was to and from the salt but a huge chunk was on the salt. I would opt for a trailer.

Simplest solution by far.
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« Reply #73 on: December 11, 2013, 12:01:33 AM »

I think we put 400 miles on our tow rig this year. Part of that was to and from the salt but a huge chunk was on the salt. I would opt for a trailer.

Simplest solution by far.

All depends on the car.  It takes us about an hour and lots of boards to get the Stude on or off of a trailer as low as it is and then we still usually manage to break something doing it  cry,

Sum
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« Reply #74 on: December 11, 2013, 04:51:37 AM »

Sum, with these cars being so low, what happens when you jack the rear?.

Doesn't the front spoiler dig into the gound?.

More complicated than I thought. shocked
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