[DadVibes]

I'm getting close to my break-in service and planning on tuning the car, in some form, soon after.

I was initially planning on just flashing the CS tune, until I learned that the 6MT has an extra table in the code (I'm sure I'm saying that incorrectly), preventing the TQ figures from increasing beyond the factory 406ft-lbs. Which is a shame because the CS power figures sound like just enough for this car.

Then I started looking into JB4/RaceChip and spoke to a couple members here who have had nothing but great things to say about both. I decided on going this route until recently reading that even piggy backs don't override that TQ limiter on the 6MT. Is this true?

If so, I suppose a full femto unlock and custom flash is my best bet. I'm not opposed to going this route, especially because it also comes with other optional benefits like keeping the valves 100% open when in sport mode and such. And historically, I have preferred a full custom calibration over "tricking" the ECU.

However, before I make any further decisions, I wanted to get some clarification on the piggy back situation, specifically for 6MT, as I have come around to the idea of sticking with a plug-n-play solution. Especially since it doesn't involve shipping my DME to another country.

I appreciate any help/clarification.

[DDDGGG_M]

Idk how that would be true. The torque tables are in the factory tune. The piggyback doesn’t touch that, it just tricks the boost sensor into making more boost. This all happens outside and irrespective of whatever the engine tune software is trying to do.

I ran the RaceChip on my m340i and was happy with it. I haven’t installed it on my M2 “because warranty” and I just feel like I don’t need the power. But there are quite a few threads on here from other members who have run them on 6MT cars and they all have positive reports.

[///MRazv2]

I have the Racechip CS + CS tune on my 6MT LCI. I haven't dynoed yet so I don't know what the actual numbers are but just from driving around town with Racechip in map 5 and sport plus, it's pretty wild. Ohlins and 305 tires helped with the traction so it just hooks and goes. It definitely feels a lot more powerful than it was before so my assumption is the torque limits don't apply to 6MT regardless. I would 100% recommend it, as it literally makes the car feel more lively now.

[tgibrit]

how do these tunes compare to Dinah/carbahn where you can add warranty? my local dealer pushed these two options and will help address issues. I just started researching this and from what I havre read so far, the standard clutch is a weak point and for anything other than a mild tune will cause the clutch to slip and really should be upgraded.

[digitldlnkwnt]

All great points above and I have to double down on looking to a clutch befor you go past the CS tune.

The CS tune which I am now doing twice due some warranty stuff, is fully worth it.

[DadVibes]

Thanks for the replies. Sounds like I was mistaken about piggy backs not being able to increase the TQ figures.

And I agree, the CS power numbers are more than enough for what I want to get out of this car. I'm back to thinking RaceChip on Map 3 is going to be just the ticket for me. Modest bump but not overly aggressive.

Thanks all!

[///MRazv2]

My understanding is that the clutch is most affected in map 7 on full throttle with max torque applied, or doing consecutive launches from red lights in daily driving you will definitely burn out the clutch way faster. I however plan to only go up to map 5 max in race mode on the racechip if I feel like pushing the car, and I'm too old to be street racing light to light so not too worried about wearing out the clutch that fast. It's nice to have the power on tap however when you get bored.

[Ehloo]

Originally Posted by ///MRazv2

My understanding is that the clutch is most affected in map 7 on full throttle with max torque applied, or doing consecutive launches from red lights in daily driving you will definitely burn out the clutch way faster. I however plan to only go up to map 5 max in race mode on the racechip if I feel like pushing the car, and I'm too old to be street racing light to light so not too worried about wearing out the clutch that fast. It's nice to have the power on tap however when you get bored.

i run map 7 all the time and the manual finally feels potent enough. i came from a AT with Race chip and full bolt ons and didn’t realize how different the MT power difference was especially the power delivery. you really have to rev the manual out and the boost comes much later compared to the AT. they feel like different cars

[DadVibes]

Originally Posted by ///MRazv2

... and I'm too old to be street racing light to light so not too worried about wearing out the clutch that fast. It's nice to have the power on tap however when you get bored.

I feel ya. Just hit 41y/o and find that I drive MUCH more conservatively than I used to. But coming from an obnoxiously powered GT500, 400ft-lb TQ feels a bit inadequate. Especially knowing what the S58 is really capable of.

I figure, if I can get up to the 450-480ft-lb range, it should have enough potency to make accelerating out of corners in the canyons feel a bit better. Admittedly, that's the only time I really get on it, these days.

[Sammykiller]

I had the CS tune on my ‘23 6MT and the car definitely felt faster than stock, sport plus throttle was much more violent if I had to choose one word.

I’m unlocked and OTS BM3 tuned now for 93 octane the power is WAY more than the CS tune ever was, so much that I had to get a PTB clutch installed as my stock clutch was slipping a lot even with limited boost (20 vs 26) at 33k miles.

I’d say unlocking and tune is 100% the way, the torque restrictions are gone and the car is just a beast after that.

[digitldlnkwnt]

Originally Posted by Sammykiller

I’d say unlocking and tune is 100% the way, the torque restrictions are gone and the car is just a beast after that.

100% agree as far as power goes, but you still want the CS files for the suspension/diff/steering.

I just got the CS files put back in, so after an A/B x2 adventure, I think I can really see the differences.

I’m also still preserving my warranty so no tune for me until much later.

[oldbmwtech]

My experience with the RaceChip on the track was it gave me more power on turn out but by the time I was at the end of the straight I was slower. I'm assuming the DME took over. My lap times were the same with or without the piggyback. However, you do feel the extra power on turn out. My 2 cents worth.

[digitldlnkwnt]

Originally Posted by oldbmwtech

My experience with the RaceChip on the track was it gave me more power on turn out but by the time I was at the end of the straight I was slower. I'm assuming the DME took over. My lap times were the same with or without the piggyback. However, you do feel the extra power on turn out. My 2 cents worth.

Makes sense; maybe with some aero and suspension work you’ll carry more of the speed through the turns

[Dave07997S]

There is a lot of torque management going on with the manual cars. BMW lawyers are so afraid we will do what Mustangs do coming out of a Cars and Coffee meet. I drove in a manual M2 with the Dinan piggy back and it was a scream.

[tgibrit]

Originally Posted by Dave07997S

There is a lot of torque management going on with the manual cars. BMW lawyers are so afraid we will do what Mustangs do coming out of a Cars and Coffee meet. I drove in a manual M2 with the Dinan piggy back and it was a scream.

was that a scream of joy or fear ?

[Dave07997S]

Originally Posted by tgibrit

was that a scream of joy or fear ?

Combination of both!!!

[jaeleus]

25 LCI 6mt here. Soo... What's the verdict on the CS tune... I hear both side...

[DadVibes]

Originally Posted by jaeleus

25 LCI 6mt here. Soo... What's the verdict on the CS tune... I hear both side...

I spoke directly to kubax86 (who sells & performs the CS flash) and he confirmed that with the flash the 6MT retains the factory 406ft-lb TQ values. This is because they are in an added table that can't be modified without an ECU unlock and customized CS tune.

However, he also confirmed that the CS flash does provide a bump in HP for the 6MT: 500hp+ when over 5000RPM.

[jaeleus]

Originally Posted by DadVibes

I spoke directly to kubax86 (who sells & performs the CS flash) and he confirmed that with the flash the 6MT retains the factory 406ft-lb TQ values. This is because they are in an added table that can't be modified without an ECU unlock and customized CS tune.

However, he also confirmed that the CS flash does provide a bump in HP for the 6MT: 500hp+ when over 5000RPM.

That sounds like news to me with the bump.....

[digitldlnkwnt]

Do it. Cheap and makes a noticeable different especially up top in the rev range

[digitldlnkwnt]

Originally Posted by jaeleus

That sounds like news to me with the bump.....

Chris3g has a thread that breaks this all down. On his site he has before and after dyno charts

[DDDGGG_M]

Originally Posted by digitldlnkwnt

Chris3g has a thread that breaks this all down. On his site he has before and after dyno charts

This, Chris already explained it in detail. The torque limit stays but the engine can produce more HP in the higher rpm’s with the same torque because power equals torque multiplied by rpm. The factory tune basically tapers off the power at the top of the rpm range and the CS tune unlocks that.