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Old 07-31-2018, 10:49 AM   #1
Eviltwin
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Default Detroit Locker TrueTrac in Dana30 Volvo 240

Anyone install one of these expensive guys?
https://www.dragracecarparts.co/detr...free-shipping/

I chose this instead of the ford 8.8 and hoping it's going to hold up to the abuse the LSx will put it through at the dragstrip
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Old 07-31-2018, 11:17 AM   #2
M.H. Yount
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Had one in my 1031 behind 5.0L Ford from 2003 til about 2010. Held up fine - but no drag racing, and not enough traction to tax the unit/rearend during launches. 8.8" now.
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Old 07-31-2018, 12:20 PM   #3
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what do you mean by not enough traction?
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Old 07-31-2018, 02:19 PM   #4
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I have a truetrac in my 1031. Works fine and I haven't had any problems with it. I've launched with pilot super sports, but haven't done it with slicks yet.
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Old 07-31-2018, 02:28 PM   #5
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it'll be fine. you may need to upgrade axles if you start twisting the stock ones off. dutchman in Chattanooga TN can hook you up there.
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Old 07-31-2018, 02:33 PM   #6
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Quote:
Originally Posted by t8fanning View Post
I have a truetrac in my 1031. Works fine and I haven't had any problems with it. I've launched with pilot super sports, but haven't done it with slicks yet.
good to hear:D
are you hooking up at all? or still getting intense wheelspin?
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Old 07-31-2018, 02:37 PM   #7
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Maybe...
http://forums.turbobricks.com/showthread.php?t=189043

There are a lot of those out running around actually.
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Old 07-31-2018, 02:52 PM   #8
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Quote:
Originally Posted by Eviltwin View Post
what do you mean by not enough traction?
??

Tire spin.
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Old 07-31-2018, 02:54 PM   #9
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Quote:
Originally Posted by M.H. Yount View Post
??

Tire spin.
please be more specific
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Old 07-31-2018, 03:22 PM   #10
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Quote:
Originally Posted by Eviltwin View Post
good to hear:D
are you hooking up at all? or still getting intense wheelspin?
I don't hook at all. My 60 foot is something like 2.5 s.
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Old 07-31-2018, 03:44 PM   #11
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Quote:
Originally Posted by Stiggy Pop View Post
please be more specific
LOL - Not quite sure how to be more specific than defining a lack of traction as tire spin. Anything approaching 1/2 throttle or more in 1st or second gear breaks the rear tires loose. If the tires spin, you're not asking the rearend/LSD to deal with all the torque the engine/driveline is capable of delivering -- but whatever lesser amount was required to break the tires loose. Tires = fuse
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Old 07-31-2018, 03:49 PM   #12
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If you're breaking both loose, going to a Trutrac, locker, welded, whatever won't help much, if anything. More tire, different suspension, weight balance might...

On mine, our local track doesn't prep worth a damn so leaving from the lights I get wheelspin most of the way thru 1st if I go full tilt if I'm not on slicks.
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Old 07-31-2018, 04:05 PM   #13
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Chuckle - despite growing up in the muscle car era, this 242 is the first V8 powered car I've ever owned. I've been waiting 50 years to smoke the tires. The last thing I want to do is screw that up with traction. ;)

OP was asking about the robustness of a Dana30 with a Truetrac -- I was simply trying to let him know that if you're significantly traction limited, you can't really put that combo through much of a test. Talk to the guys that are running slicks/sticky drag radials who can really launch hard. See how that combo held up under their 'testing' -- that'll give the OP an idea of what to expect.
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Old 07-31-2018, 04:08 PM   #14
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haven't launched the 940 very hard yet (one, it's almost impossible with the low stall speed; and two.. it'd break something on the chassis as currently configured), so I dunno on that one. the 740 with a welded diff rides out fine at the track, wouldn't mind an lsd vs the welder in there though I think, just from a moving it around perspective.
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Old 07-31-2018, 05:51 PM   #15
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I do know several people in the 300-400hp range running one without issues on the street, a few of those aren't driven kind. Mine's been beat on plenty, street and track with around 300 as well, got almost 100k on it so far.
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Old 07-31-2018, 07:06 PM   #16
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Quote:
Originally Posted by M.H. Yount View Post
LOL - Not quite sure how to be more specific than defining a lack of traction as tire spin. Anything approaching 1/2 throttle or more in 1st or second gear breaks the rear tires loose. If the tires spin, you're not asking the rearend/LSD to deal with all the torque the engine/driveline is capable of delivering -- but whatever lesser amount was required to break the tires loose. Tires = fuse
What do you mean by torque, exactly? Oh, and give examples.......
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Old 07-31-2018, 07:41 PM   #17
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LOL!
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Old 07-31-2018, 10:15 PM   #18
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I have a 1031 truetrac in my ls wagon has about 300 whp I have done about 10 or more drag runs with no problems.
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Old 07-31-2018, 11:27 PM   #19
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I thought you had more than that in the wagon. Makes sense though since we were pretty damned close at the track. lol

I think I'm somewhere in the 50-75 runs since mine was installed, with 250-300whp in different iterations during that time.
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Old 08-01-2018, 12:12 AM   #20
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Quote:
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I thought you had more than that in the wagon. Makes sense though since we were pretty damned close at the track. lol

I think I'm somewhere in the 50-75 runs since mine was installed, with 250-300whp in different iterations during that time.
13.1 was my fastest time, It need a stall torque converter
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Old 08-01-2018, 12:20 AM   #21
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Makes sense.
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Old 08-01-2018, 09:29 AM   #22
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thanks fellas, and LOL yes...I was a little tired yesterday and my reply asking for clarification on wheelspin was certainly warranted of laughs.
That said, I was hoping the trutrac would allow me to hookup a little stronger off the line when launching but it seems that I'll just be looking at even more wheelspin.
I'll source out some cheater tires in this case. I haven't even broken into the 13's as of yet
my best is a lousy 14.6 at 101mph.
2.5ish 60ft

the power is there, it's just a matter of getting it to the ground and not having it splatter all over the place.
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Old 08-01-2018, 12:53 PM   #23
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what do you mean by not enough traction?
Not gonna break stuff with no traction most likely.

You can dump your clutch in 3rd gear from a dead stand still in the snow without issue..do it with traction and you won’t habe a 3rd gear anymore.
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