post #211 of Old 09-12-2008, 11:40 AM
Mish_Mish
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Quote:
Originally Posted by Three Oh DSL View Post
Understood. But my figures are based on my new vehicle weight: 4,700lbs.

My calculations are also based on my track runs at the aforementioned weight. The TDC box claims a total of 443lb/ft alone. I'm factoring my intake and other mods for this equation as well. Based on the vehicle's on-pavement performance I'd say torque specs in the 450-470 range are quite realistic.

Regardless of the vehicle weight, the input torque will remain the same. In the end, stating that the 400tx trans. can handle more than its "rated" 400 maximum input torque is still a valid argument.

It does not make sense to put 400lb/ft rated gearbox on 380lb/ft engine, when they have 580 rated option with the same gear ratios. We probably need to ask Jeep engineers about that.
My transmission shifts fine, except for that stupid early shift from first to second and second to third. Engine just gets into increasing powerband and damn transmission immediately custs it off with upshift, creating very unpleasantly feeling jerk.


06 Touareg V10 TDi
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post #212 of Old 09-12-2008, 01:19 PM
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Originally Posted by Mish_Mish View Post
Engine just gets into increasing powerband and damn transmission immediately custs it off with upshift, creating very unpleasantly feeling jerk.
At what RPM is your Jeep shifting?

Perhaps its just a MY2008 issue; I've no problems with the trans at all. -Maybe just a small complaint about downshifts while coasting, but other than that....

Quote:
Originally Posted by Mish_Mish View Post
It does not make sense to put 400lb/ft rated gearbox on 380lb/ft engine, when they have 580 rated option
Remember, the CRD (at least mine anyhow) has a price point of about $44,000.00. By contrast, an SRT8 can be had for about the same price.

I pondered the exact same question. I surmise with the addition of the OM642, side curtain airbags (std. on '07 CRD) and other CRD-standard amenities, it became an issue of cost.

In previous conversation, MerlinTec has suggested that it may just be a US/EU naming convention differentiation. -This could also be true.

While we're discussing this: Does anyone know what front and real axles are used in the 3.7/4.7/5.7?

The CRD is supposed to have DANA-30/DANA-44 front and rear respectively, the same as the SRT8.
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post #213 of Old 09-12-2008, 06:43 PM
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Well, I have 05 3.7L 4x4 Laredo sitting in my backyard, waiting to go to Russia. Something tells me that it could use 3.73 instead of 3.07, what do you think?

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post #214 of Old 09-12-2008, 09:09 PM
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Anywhere near Moscow? I've got family there.

How soon does it need to go? LOL
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post #215 of Old 09-12-2008, 09:18 PM
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I have to do tons of mods to it before it goes out, maybe 2-3 weeks till it sails. It goes to MSK City.

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post #216 of Old 09-12-2008, 09:20 PM
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-Small world indeed.
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post #217 of Old 09-16-2008, 07:03 AM
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Well, just in case anyone is interested, I transfered the lease on my GC CRD and I have some parts left over, mainly the TDC PowerBox CR+ and my MyGig. Anyone interested, pm me.

1998 Grand Cherokee 5.9 Limited

- Kolak exhaust
- K&N intake
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post #218 of Old 11-20-2008, 10:50 AM
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What has happened to thi board? The last message I can read is from 09-16-08.
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post #219 of Old 11-24-2008, 02:21 PM
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Hi,

Any update on tdc chips or the otherw mentioned here? I have the tdc and have been getting terrible milage. I just tok it off and my milage here in town in now around 16.5. I seems bad to me, but it was around 15 with tdc set on "6". I do not understand my milage. Any suggestions...

Ron
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post #220 of Old 03-14-2009, 11:33 PM
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Any news on these TDC boxes or other tuners?
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post #221 of Old 03-15-2009, 01:42 AM
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Quote:
Originally Posted by justa4banger View Post
Any news on these TDC boxes or other tuners?
Nothing new as far as I can tell

2008 GC CRD, OME 2" lift kit, 265/70/R17 Cooper Discoverer S/T's, 1.5" Spidertrax spacers, gutted turbo resonator
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post #222 of Old 03-15-2009, 06:26 AM
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Seems to me that with the TDC you need to make some small intake/exhaust improvements.........in the engines complete stock form and just having the "chip" doesn't seem to do much.

Then again thats just my reading.
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post #223 of Old 09-21-2013, 11:04 AM
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Spider Performance System

I know it's an old thread.. I was still wondering if anyone bought the newer Spider Performance System that replaced the Brabus, and could comment.
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