Truetrac in Titan - Review - Page 5

*SilverQShip* · 03-25-2006, 12:00 AM

THanks Austin and YOU DA MAN!.

-Son of SQS

HawaiiTitan · 03-25-2006, 12:31 AM

I agree with Silver, good farking job Austin. I'm definitly going to get this so incluse me in on the group buy. Maybe HawaiianBassHead can give me some info on what shop is best around here for the install.

CraigG · 03-25-2006, 06:19 AM

Yes sir if a resonable price is offered on the group buy im in too.

Austin · 03-25-2006, 02:29 PM

Two great things to report.

First, the Truetrac + ABLS works AWESOME!!!

The Truetrac, like any limited slip, requires that both wheels have at least some traction - if one wheel has zero traction, the no torque is generated, and torque multiplication yields zero torque.

With the Truetrac + ABLS, though, you can put one wheel in the air (zero traction) and ABLS will clamp the brakes on that wheel.

I put the rear pumpkin up in the air with a jack & put the truck in drive. I had a buddy hold the driver's rear tire - so just the passenger rear tire spun. With just a pop of the throttle, the SLIP light turned on and the driver side tire was ripped out of his hands. Very cool.

Second thing - I finally did a little video of a 2 wheel burnout on dry pavement. I wasn't going for smoke (because these tires are not cheap), so I only laid an 8' or so patch... but it's a double patch.

Here's a pic:

Here's a link to the video - please right click/save as:

http://www.austinm.net/titan/truetrac02.avi

Austin · 03-25-2006, 02:30 PM

Oh, and I put a link to the video on my website too. For future reference...

pi3yeargrad · 03-25-2006, 02:40 PM

Quote:

Originally Posted by Austin

Oh, and I put a link to the video on my website too. For future reference...

Does it launch like way better now...thats my problem, my truck gots some B@LLS but it wont grab to take off...

cool video...

bestatchess · 03-25-2006, 02:41 PM

Very, very cool! I was hoping it would work with ABLS like that, but you never know until it actually works. Thanks!

Do they have an estimated shipping date on the production units?

baseballfanz · 03-25-2006, 02:56 PM

Awsome, and thanks your friend for holding the wheel, barve man.

Treebasher · 03-25-2006, 04:27 PM

Quote:

Originally Posted by baseballfanz

Awsome, and thanks your friend for holding the wheel, barve man.

No kidding... That's like the old, "Hold this spark plug wire on the lawn mower while I try and start it."

1bigtexastitan · 03-25-2006, 04:33 PM

Quote:

Originally Posted by 1bigtexastitan

One pithy question Austin?

Will Detroit offer one for the front diff as well?

I am sure to get the one for the rear but I would also want one for the front as well...making it a "true" 4X4.

Thanks again for the info and review...

Hey Austin, did you miss my question? Or maybe someone else knows the answer and may retort...

FlimFlamMan · 03-25-2006, 05:18 PM

Quote:

Originally Posted by got_titan

from my understanding......no....i have one on order from a friend so as soon as its released ill be first in line........

I see how you are... couldn't hold out for the group buy aye? Hehe ... don't blame ya. I've come awfully close to just flat out buying it from Summitracing.com

bestatchess · 03-25-2006, 05:59 PM

Quote:

Originally Posted by 1bigtexastitan

Hey Austin, did you miss my question? Or maybe someone else knows the answer and may retort...

I don't know the answer, but it would seem possible in theory as they have previously made them for the fronts of IFS Toyota trucks. I don't know if those had an aluminum diff case, though.

CHEIF · 03-25-2006, 08:22 PM

subscribe

pluckyew · 03-25-2006, 08:48 PM

Quote:

Originally Posted by Austin

I had a Truetrac diff from Detroit Locker installed a couple days ago. The Truetrac is a helical gear type limited slip differential.

Here's a link to the original thread on the Truetrac.

Here's a link to the Truetrac page on Detroit's website.

I've driven vehicles with all kinds of limited slips and lockers. Mechanical and viscous LSD's, automatic and ARB lockers. The Truetrac is far and wide the most amazing limited slip I've ever experienced. After 2 days with this diff I'm absolutely in love with it. It's as smooth and invisible as an open diff when putting around, and I almost can't tell the difference between it and a locker when I push the go-fast pedal.

I removed the OEM electronic locking rear diff (an open diff) to install the Truetrac. I can tell you this - if you're on the fence about getting the TrueTrac because you don't want to give up your OEM locker... get the Truetrac. It has all the traction of the locker when locked, all the street manners and ease of use/low maintenance of an open diff, and makes for great around-town driving.

I went to my favorite off-camber uphill dirt hill today to get one rear tire up in the air. Normally, with an open rear diff, as you unload one tire it'll start spinning (as it loses traction). With the Truetrac, I couldn't tell that the unloaded tire was off the ground. I had my big tow mirrors pointed down at my rear tires (which stick out nicely from the fenders), and I couldn't see a speed difference between the two. It felt just like a locker.

A couple other tests I've done -

Accelerate in a straight line on damp pavement, leaves two black marks.

Accelerate hard around a corner - kicks out the back end, feels close to how a locker feels around a corner. Very easy to steer with the throttle.

Accelerate hard with one tire on dry pavement (maximum traction) and one tire on packed dirt/moss/sand (minimum traction, off the road). I've done this test probably 30 times, at all different throttle levels. I can tell if the tire in dirt spins by the look of the ground afterwards (torn up, lightly disturbed, undisturbed, etc.), and I can tell if the on-road tire spins by the barking sound. This Truetrac is so close to a locker, it's unbelievable. I can't spin the off-road tire at all without hearing the on-road tire spin.

I can take off at partial throttle, and just take off - neither side spins. At a certain power level, the rear end goes from neither side spinning to both sides spinning. On an open diff, the tire with minimum traction (the off-road tire) would spin like crazy and the on-road tire would just sit.

I haven't had my SLIP light come on since the installation of the Truetrac. The SLIP light illuminates when the ABS system senses a difference in rotation speed between the left and right rear wheels and activates ABLS.

It's definite - I'm not going back to the locker.

thanks for your review, Austin.
i got mine in Jan 2004, so mine's got an open diff, something i wish to improve on.
your Titan is coolest Titan I've read about in this forum: bravo.

**Titan1080** · 03-25-2006, 10:14 PM

Subscribed! Darn it, just finished paying off one of my credit cards...