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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Jul-26-2016, 03:13:28 AM   #1
tsegreto
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Default TTFS SMG Software Cause More Wear?

Hey all,

A lot of people say really great things about TTFS's SMG Software (http://www.tuningtechfs.com/ttfs-smg-software/) - I am one of the rare ones who really likes SMG and I just paid $3200 to get my SMG pump replaced. My M3 has 88k on it with the original clutch.

Is TTFS's SMG Software harsher on the clutch, transmission, SMG pump, etc.? I know the CSL sofware is harsher on the clutch, but I don't know by how much.

Thanks.
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Old Tue, Jul-26-2016, 03:44:00 AM   #2
RedM3/4
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Default Re: TTFS SMG Software Cause More Wear?

I don't know any way one could quantify this. Nor any changes in tranny sychro or gear wear. My gut would say there could be some very minimal increase in clutch wear. There could and probably is some decrease in synchro and gear wear via better throttle blips. But all of this kind of depends on how one drives. And again, there's no real way to quantify. But if you drive the car in a spirited manner with any regularity, I think:
1. you'll get more enjoyment out of the car.
2. you clutch wear won't be even 10% different - WAAAAAAY bigger factor would be even one use of launch control, for example.
3. your tranny wear may be a bit less - and unlike the clutch, this isn't a simple (yes mid-level on maint expense but not complex) wear item.

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Old Tue, Jul-26-2016, 04:03:52 AM   #3
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Default Re: TTFS SMG Software Cause More Wear?

Keep the car in the fastest shifting setting and you will wear the clutch less. Less slip = less wear. In Lambos for example, the general rule in the community is to keep "Sport" on at all times, even if its a bit less comfortable/jerky, as you can get thousands of extra miles out of the clutch.
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Old Tue, Jul-26-2016, 04:16:28 AM   #4
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Default Re: TTFS SMG Software Cause More Wear?

this isn't the best idea on an smg - at least not S6; it's just un-needed wear on the tranny. Again, clutches are way cheaper than trannies. I can't speak to Lambos, but that crowd worried about a few thousand miles on a clutch is downright laughable unless it wears quicker than e39M5's, probably still so!
If I'm going to choose clutch versus tranny wear, the choice is obvious.

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Originally Posted by cscat87 View Post
Keep the car in the fastest shifting setting and you will wear the clutch less. Less slip = less wear. In Lambos for example, the general rule in the community is to keep "Sport" on at all times, even if its a bit less comfortable/jerky, as you can get thousands of extra miles out of the clutch.
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Old Tue, Jul-26-2016, 04:38:02 AM   #5
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Default Re: TTFS SMG Software Cause More Wear?

Quote:
Originally Posted by RedM3/4 View Post
this isn't the best idea on an smg - at least not S6; it's just un-needed wear on the tranny. Again, clutches are way cheaper than trannies. I can't speak to Lambos, but that crowd worried about a few thousand miles on a clutch is downright laughable unless it wears quicker than e39M5's, probably still so!
If I'm going to choose clutch versus tranny wear, the choice is obvious.

ADS
Not sure how much shifting speed effects transmission wear. A clutch on a Gallardo lasts generally between 10-15k miles. Less slip can get you closer to that 15k mark, which is a huge difference. Replaced mine last year ($8500) and it is currently around 85% with roughly 2k miles on it.
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Old Tue, Jul-26-2016, 07:26:54 AM   #6
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Default Re: TTFS SMG Software Cause More Wear?

Do your research based on the standpoint that the TTFS SMG Tune = CSL SMG Parameters.

I don't feel that it would wear the clutch out any faster. E46 M3 clutches have a pretty long service life. It will last about the same as a 6MT as long as you aren't using launch control or burnout mode.
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Old Tue, Jul-26-2016, 07:53:16 AM   #7
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Default Re: TTFS SMG Software Cause More Wear?

Harder shifts= more stress on driveline
Slower shifts= more wear on clutch but much smoother
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Old Tue, Jul-26-2016, 08:51:11 AM   #8
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Default Re: TTFS SMG Software Cause More Wear?

It won't cause more wear, or in a negligible quantity.
IMO the CSL tune made the shifts smoother. I really enjoy my transmission with that mod.
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Old Tue, Jul-26-2016, 03:58:17 PM   #9
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Default Re: TTFS SMG Software Cause More Wear?

TTFS SMG tune better on all levels. Smoother is better...
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Old Wed, Jul-27-2016, 01:34:25 AM   #10
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Default Re: TTFS SMG Software Cause More Wear?

I would think it's easier on the clutch. The stock programming drags the clutch when shifting from 3-2 when slowing to a stop. The CSL/TTFS software always rev matches.

I'd do the software even if it did wear slightly more because I'd rather enjoy my car for 59k miles with decent software than 60k miles with crap software...as an example.
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Discussing TTFS SMG Software Cause More Wear? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)