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Author
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Topic: Has anyone ever driven a spool on the street?
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-12-2001 11:57 AM
   
I was thinking about taking the 9" open differential out of my spare '73 and throwing in a mini-spool and 4.56 gear for my '66 Stang.. This would allow me to keep my 3.50 geared trac-lock intact... Is this a good idea ?? Any pointers?? Can it be driven 10 miles to the track??
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Rustang1
Gearhead Posts: 108
From:
Registered: Nov 2000
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posted 07-12-2001 12:40 PM
From what I recall when I went thru this, Strange said that their all out race axles could not be used with a full spool on the street, but their SS Street axles could because they are not as brittle as the race units. I think Moser says they're axles can be run on the street w/full spool. (these were all 31 spline units) I would think if you are running stock axles that they would have enough elasticity that they would be okay. Also, a comment on the mini spool. I think they are mostly for circle track applications and aren't real strong for drag racing use.------------------
1968 Mustang,Clevor,C4
1969 Torino 351C 4spd
1978 F150 460 C6
1978 F150 351W C6
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Mike_R
Gearhead Posts: 142
From: Indianapolis, IN 46237
Registered: Feb 2001
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posted 07-12-2001 01:05 PM
A full spool is lighter and only about $100 more than a mini spool. If you do go with a mini spool make sure you buy an aftermarket cross pin. The stock ones tend to break easily.
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-12-2001 02:06 PM
I'll be using the set-up with stock 28 spline axles and trying to hook-up ET Streets and 4-speed with about a 310 HP 289 in front of it... Has anyone here used a similar mini-spool set-up on the strip with any dependability?.. I've got a brother in law that just upgraded his SB chevy with a $250 9" stall converter that's kicking my *** off the line and I think I can take him pretty easily with this set-up.. We're both running the same MPH in the quarter but he's getting me by 2 tenths in 60'.. I figure if I spend too much money he'll start acting like a cry-baby and won't admit to defeat..You know how those chevy drivers are..  The mini-spool and gear would cost under $200..
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69maverick
Gearhead Posts: 839
From: Thomaston,CT.
Registered: Jan 2001
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posted 07-12-2001 02:14 PM
B-S My son runs a welded carrier ! same as a spool that I can tell. With 28 spline Axles
in a 68 coupe with a c-4 And he has been pounding it for about 8 months now on the street and it still works fine!
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JAAZZY
Gearhead Posts: 745
From: Bay Area, CA
Registered: Apr 2001
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posted 07-12-2001 05:35 PM
I ran a mini spool on the street for awhile in my 66. I had no problems with durability but hated it in a vehicle I drove on the street all the time. It skipped around turns and at speed it is a little unsettling. I swapped it with a traction lock unit.Anyway if your street driving is limited or just 10 miles to the track you should have no problem.
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-12-2001 05:48 PM
Ok, It's cheap so I'll give it a try till something else comes along... Anything to keep from bowing down to sb chevy.. Now all I need is a set of 4.30 or 4.56 gears and I'll get him next round..Jaazy, Did the spool help you nail the back tires down any better than your current trac-lock??? [This message has been edited by bluestreek (edited 07-12-2001).]
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JAAZZY
Gearhead Posts: 745
From: Bay Area, CA
Registered: Apr 2001
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posted 07-12-2001 08:28 PM
With my combo it wasn't really an issue since my power band starts at around 3000rpm and with only 3.0 gears I didn't launch all that hard. At the time I had a c4 so even the 1-2 shift wasn't bad. My suspicion though is that it would launch better and straighter. quote:
Originally posted by bluestreek:
Ok, It's cheap so I'll give it a try till something else comes along... Anything to keep from bowing down to sb chevy.. Now all I need is a set of 4.30 or 4.56 gears and I'll get him next round..Jaazy, Did the spool help you nail the back tires down any better than your current trac-lock??? [This message has been edited by bluestreek (edited 07-12-2001).]
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-12-2001 09:35 PM
My cam is a 230/230 duration, 512/512 lift, 109 center.. It starts to smooth out at 2200 rpms and starts pulling good at about 3000.. I would love to be able to launch at anything above 2000, but the 3.50 gears and close ratio 4 speed won't allow it.. I'm really looking forward to trying a spool and some good gears to get this little 'Stang motorvated.. I've been following the recent posts on traction, and I'm gonna be shooting for 1.8 sec. 60's on street tires... any better will be icing on the cake..[This message has been edited by bluestreek (edited 07-16-2001).]
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perk
Gearhead Posts: 338
From: Staley,nc
Registered: Sep 2000
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posted 07-13-2001 01:03 AM
Do you mean street slicks or (and I quote),street tires and looking for 1.8s in the 60ft.???
Any way,as far as a mini spool goes,I have
one and I drive it up to 2 hours to one of the tracks we run at.No problems so far.
We have gotten 1.8s with this setup running street slicks.I believe we will get even better times after we tie the frame rails together.perk
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-13-2001 12:57 PM
When I say street tires, I mean street tires.. 235/60 14 Eagle ST (8in tread).. I already managed 2.0 60' with the 3.50 gear and loose trac-lok.. Surely I can get 1.8s out of 4.30 gear and spool.. The added acceleration alone should improve me that much..After a few runs on the street tires, then I'll see what I can gain out of "cheater slicks".. This cam setup with my modified and port-matched 289 heads wants to take off after 2200 rpm.. I guess the trick is to make it launch hard enough to reach 2200 rpm out of the hole..The way I see it, I have to figure a way use the stored up torque from the engine at launch to reach the magical rpm where the engine will be in a "hard pull", once it recovers from the launch.. If I can keep it from stumbling off the line, and not smoke the tires, and don't break anything, then the battle is won..Sorry, long winded.... just thinking out-loud again... How about a little info on this frame rail issue..I'm an engine man and this chassis stuff is all new to me!! thanks [This message has been edited by bluestreek (edited 07-13-2001).]
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TomP
Gearhead Posts: 4637
From: Delta BC Canada
Registered: Dec 99
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posted 07-13-2001 10:49 PM
Frame Rail issue? Bah... ya don't need to add more weight..it ain't gonna be twisting on you till you have over 400hp.If it's a convertible thats a different story. It won't improve times, more likely hurt them as adding weight below and ahead of the center of gravity is apt to do. When it gets to needing a roll bar, that will add the stiffness that may be useful by then. My Fairlane has nothing that helps rigidity, the roll bar only has one side bar and one curved back brace and so far runs 10.0's @ 133. Its the launch that twists it tho..and 1.36 does tweak it a bit... when the car runs a 9 the cage will add stiffness.
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-14-2001 12:06 AM
Hello Tom,
I kinda figured as much.. I'm just gathering as much info as I can, just in case, one day, I might need to know.. I figure if the hood flies open and the back glass pops out, then I might think about stiffening her up a little bit... ha! HA!
Hey, great numbers with the Fairlane.. I have a little '68 1/2 Falcon Sport/Coupe with a twisted top on it.. Got caught in a tornado, though.. Been meaning to fix her back up one day.. Tornados don't play!!!
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Mpcoluv
Gearhead Posts: 834
From: Charlotte NC usa
Registered: Apr 2001
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posted 07-14-2001 09:09 AM
Since you are running pure street tires, I'd invest in a set of narrow slicks or a pair of the DOT legal drag radials.
I think that would make a huge difference.
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-14-2001 10:39 AM
I'm gonna be going to Atlanta Dragway today to help my Bro-in-law tune his SB Chevy with a full new set of M/T Sportsman PRO tires and Draglite wheels(9" rear,4.5" front).. He was doing 2.08 60' on regular street Radials and steel wheels before.. I'll find out what $900 worth of wheels and tires are worth on a mild '75 street NOVA ... This should be fun and educational..  [This message has been edited by bluestreek (edited 07-14-2001).]
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-14-2001 01:54 AM
Well, we tried out the new wheels and tires and they really spun bad the first time off the starting line.. Before the next run, we dropped the pressure to 20 PSI and unloaded the traction bars 1/2 in. on both sides and she finally stuck really hard.. He netted a 2.03 60' and crossed the traps at 14.10 @ 93MPH.. We only got 2 time trials before eliminations and never really had time to get a good dial in.. I noticed that he was popping a little bit at the very top of his gear changes so I made him back his timing down 2 degrees to take are of the popping and we decided to dial-in a 14.00 because of the ingnition change..
As luck would have it, we would be sitting beside one of the points leaders at the track for the first round of eliminations.. Mike hasn't bracket raced in 2 yrs, but still knows how to race... He got a good burn-out and pulled to the line against a full size Chevy crew cab, dialed in at 18.07.. Mike had a sick look on his face before going into the burnout box, so I consoled him and told him to do his best and just try to get his nose out in front at the finish and pray for some luck.. I stood and watched until they both crossed the line at the same time, but, his opponents win light came up.. Mike ended up the loser but he made it really close considering the circumstances.. His opponent ran a perfect dead-on with a .578 light and Mike broke out with his first ever 13.97 with a .601 light. His 60' times had dropped to 1.93.. The tires seem to be getting better with every run, but we got eliminated and was not able to make anymore improvements.. Oh well, we'll get em next time.. [This message has been edited by bluestreek (edited 07-14-2001).]
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-15-2001 08:10 PM
bump
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bluestreek
Gearhead Posts: 1086
From: Athens,GA
Registered: Jul 2001
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posted 07-16-2001 01:30 PM
test------------------
'66 Stang with traction problem!!
289 320hp 4 spd 3.50 trac-loc
http://www.picturelist.net/Images/dbhard/1966.jpg
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