[Livnletcarsliv]

Originally Posted by CannedShroud

Please do share your 2 cents on this, and if someone has done it before on this platform.. (Tiago JTP/Altroz iTurbo/Nexon etc). Please share your journey as well.

You can do anything and everything if you have these - Money, Time, Energy, and most important if this is a project car. If not, nothing more. Period.

Tata was never good with petrol engines irrespective of the model and year. Even the Tiago JTP was not 100% Tata developed. It was developed in collaboration with Jeyam Automotive, Coimbatore. So there is a serious limitation in terms of RELIABILITY to extract more from the stock.

At the same time, Altroz diesel is a different beast altogether, especially when it comes to mod potential. Of course, with limitations again.

Btw, I would say those 180/200 hp 1.0/1.2 TSI polos may not be daily drivers. One of my friend Bhpian has a 300hp 1.6S fiesta and its not a daily driver. plus it needs special maintenance, highest 99RON fuel and so on..

Altroz petrol (not the racer) is one of the most boring cars to drive. And Altroz diesel is one of the best drivers car. I would not even do a stage 2 with Altroz petrol, let alone more mods.

[Phantom 510]

I am no expert but reliability and after market mods don't go hand in hand. It's better the car remains stock and be driven as it is IMO.

[CannedShroud]

Originally Posted by SavoyWalrus

I think stage 2 is the max that I would ideally go for in the Altroz. I just don't trust the gearbox, and reliability is paramount for me. Like @pedrolourenco said, you can have fun even if it's sub 150 bhp. Maybe try better springs and brakes to get better entry and exit speed. Cornering is as much, if not, more fun than outright acceleration

Yes, this sounds like the right path to follow - I will be researching about and hopefully will get through with the mods by May-June 25. I had reached out to some tuning houses and they do support other stuff like slotted rotors, braided brake lines. and even some head work on the block. Will keep the thread posted.

Originally Posted by pedrolourenco

Tata does not release this data but someone had found out the exact figure through some sources. I forgot the figure he told me. Will check again.

Thanks a lot

Originally Posted by Livnletcarsliv

You can do anything and everything if you have these - Money, Time, Energy, and most important if this is a project car. If not, nothing more. Period.

Tata was never good with petrol engines irrespective of the model and year. Even the Tiago JTP was not 100% Tata developed. It was developed in collaboration with Jeyam Automotive, Coimbatore. So there is a serious limitation in terms of RELIABILITY to extract more from the stock.

Yes, I am aware of the Jayem ties and how the 3 pot turbo mpi engine made it to the tata house, But the rationale behind the potential gain for power was that the nexon does better figures stock - and those are proven to be pretty reliable from a engine perspective.

Originally Posted by Livnletcarsliv

At the same time, Altroz diesel is a different beast altogether, especially when it comes to mod potential. Of course, with limitations again.

Altroz petrol (not the racer) is one of the most boring cars to drive. And Altroz diesel is one of the best drivers car. I would not even do a stage 2 with Altroz petrol, let alone more mods.

The thread is regarding the iTurbo, not the NA Altroz - you are right, the NA block is anemic and should never have been an option for a car in this segment. The iTurbo is the same engine as the Racer (with a different ECU). Otherwise mechanically same to till the flywheel.

This block is easily much more fun than even the diesel, with the power being very linear and enjoyably after a stage 1 map. The lag in the diesel is just abysmal -- not to mention the 2 second delay in the throttle response really sickens me to the gut every time i drive one.

Originally Posted by Livnletcarsliv

Btw, I would say those 180/200 hp 1.0/1.2 TSI polos may not be daily drivers. One of my friend Bhpian has a 300hp 1.6S fiesta and its not a daily driver. plus it needs special maintenance, highest 99RON fuel and so on..

You are right, I probably am getting a little carried away with the numbers. The chassis dyamics, steering and suspension being so good, I really feel that she has a lot more to give.

For the part of always having to run a higher fuel grade, I am fine with that - My iTurbo is already on a 95 RON ONLY map and it really is not a hassle at all!


Will keep the thread posted with further updated

[Chaman K]

Hi there!! It was a nice read going through your posts. We have a diesel altroz tuned to stage 1 and were wondering for a brake and tyre upgrade. Tyres are stock 185/60 R16s right now and was thinking about upgrading to Vredestein Ultrac Vorti - i 205/55 R16s since they feel very good on my polo tsi now but you've mentioned wheel rubbing in the rear arch which is sad. Have to hunt for quality 195/55 offerings then for when the car needs new tyres...
About the brakes - brakes are fine but an upgrade would definitely be appreciated. Are there any performance pads and/or rotors available??

[CannedShroud]

Originally Posted by Chaman K

Hi there!! It was a nice read going through your posts. We have a diesel altroz tuned to stage 1 and were wondering for a brake and tyre upgrade. Tyres are stock 185/60 R16s right now and was thinking about upgrading to Vredestein Ultrac Vorti - i 205/55 R16s since they feel very good on my polo tsi now but you've mentioned wheel rubbing in the rear arch which is sad. Have to hunt for quality 195/55 offerings then for when the car needs new tyres...
About the brakes - brakes are fine but an upgrade would definitely be appreciated. Are there any performance pads and/or rotors available??

Thank you for your kind words. In practice, the wheelwell rub is not bad at all, and I'm actually running the same factory wheelwell that came with the car (I'm running Michelin Primacy 4 195/55/r16 now).


The damage (more like wear honestly) is pretty minimal and is absolutely not a problem. It only happens at a specific angle just before full lock to either side.



As for performance brake pads or rotors. I'm myself out on a lookout for better pads/rotors for this callipers. From what I have gathered, the Petrol/iTurbo's smaller rotors has better Oem-replacement support like Bosch's ceramic composite pads. Those were pretty good but were too harsh on the rotors (I honestly don't mind replacing rotors every 20-30k kms if the braking performance is better). But unfortunately such options don't seem to be available for the diesel size. I've tried to reach out to brakeup.in but even they didn't seem to have options from reputable vendors like bosch, brembo, ebc.

There are currently active threads and communication channels open with both brembo and ebc to develop pads and rotors for Indian cars (tata Mahindra etc).

As for options currently available to us, Raceconcepts BLR have options for steel braided brake lines for better pedal feel and also modding the rotors to be slotted.

Apart from that. I'm not aware about any other options. Please do let me know, I'll keep this thread updated with further leads that I get or mods that I might do

[Deadskyi]

Invest in a better subwoofer I'd say. It should tie the whole setup nicely. Underseat sub, especially Harman doesn't sound promising enough.

[aBlueAltroz]

Hi,

I also drive an i-Turbo, with wolf stage 1+ map. I have also installed cobra lowering springs with MRF Perfinza tyres and using an HPI air filter. Currently I'm happy with the setup. Just wanted to know how good is the diesel Altroz's brakes in i-Turbo?? And how did you procure it? Boodmo?

Also, I think K&N is manufacturing stock replacement filters. Has anyone installed it? Code6 has a stage 2 map for i-Turbo. Any thoughts on getting it done?

Thanks.

[SavoyWalrus]

Originally Posted by aBlueAltroz

Hi,

I also drive an i-Turbo, with wolf stage 1+ map. I have also installed cobra lowering springs with MRF Perfinza tyres and using an HPI air filter. Currently I'm happy with the setup. Just wanted to know how good is the diesel Altroz's brakes in i-Turbo?? And how did you procure it? Boodmo?

Also, I think K&N is manufacturing stock replacement filters. Has anyone installed it? Code6 has a stage 2 map for i-Turbo. Any thoughts on getting it done?

Thanks.

The diesel Altroz's brakes are a direct fit (the Altroz CNG and auto also uses the same setup). You need to buy new calipers, brake discs and pads. It's a massive upgrade, I'd say. Feel is way better than the stock, which is subpar, especially if you have a remap. Boodmo is a little tricky, they sometimes have it, and sometimes don't. I sourced from a parts dealer in Bangalore.

I've added the K&N replacement filter too. Works perfectly fine. I've got a stage 1 Code6 remap. Pretty satisfied with it.

[CannedShroud]

Journey Update: Creature Comfort Upgrades
Ever since Tata introduced the BS6 Phase 2 cars, I’ve been on the lookout for drop-in parts to improve my Altroz iTurbo’s NVH (Noise, Vibration, and Harshness). While I don’t yearn for an engine so refined that you can’t tell it’s running, a little NVH improvement never hurt anyone. The Phase 2 reviews were quite positive, so I started digging into the potential changes Tata Motors might have made for such gains—shafts, counterbalances, the works. To my surprise, I found nothing concrete.
That was until I recently sat in my friend’s Nexon. Despite sharing the same engine mechanically, the Nexon felt miles better inside the cabin. Interestingly, with the hood open, the Nexon felt even rougher than the iTurbo. However, none of these vibrations made it into the cabin, which led me to explore engine mounts (something I should have done earlier, honestly).
The Research

Scouring part numbers revealed some intriguing details. The Phase 2 Altroz comes with three mounts—A, B, and C—but their compatibility tables are puzzling:

• Mount A: Shared with Phase 2 iTurbo and Racer.
• Mount B: Shared with Phase 2 iTurbo and DCA.
• Mount C: Shared with Phase 2 iTurbo and Phase 2 NA.

It seemed promising that all three were compatible with the iTurbo. However, confidence can be fragile.
The Fitting Process

As soon as we started fitting the mounts, we hit roadblocks:

• Mount B: Despite being the most likely to fit, it didn’t. Two bolt holes attaching to the frame were spaced two inches farther apart than in Phase 1. While some light fabrication work could make it fit, I didn’t want to experiment with engine mounts. My FNG (friendly neighborhood garage) also lacked the expertise for such modifications.
• Mount C: This was a complete mismatch. Its shape differed significantly, with the mount holes positioned at almost a 90-degree angle compared to Phase 1.

Finally, some good news—Mount A fit perfectly!
This mount seemed the least likely to fit, but it worked. It’s heavier and the rubber feels stiffer than the Phase 1 version, which might seem counterproductive for vibration reduction, but it indeed felt better!



Left: Phase 1 mount
Right: Phase 2 mount



Results!


After replacing just one of the three mounts, the improvement in NVH is noticeable. The vibrations haven’t disappeared entirely, and it’s not close to the refinement of, say, a Maruti or Honda 4-cylinder, but it’s significantly better.
Idle, AC on/off, low RPM under light loads, or high RPM under pulls—it’s smoother across the board. And no, it’s not a placebo!


I used a Pixel 7 Pro placed in the cup holder, running an app to measure vibrations for about 30 seconds. While I can’t verify the absolute accuracy, the readings reflect the improvements:



Before (AC On)


After (AC On)


After (AC Off)


Here’s the part number for the mount:
Engine Mount A: 544224100175 (₹3,350/-)
Phase 2 (hehe get it?) : A Proper Subwoofer Upgrade

Gone is the off-brand, under-seat Hamaan subwoofer with its muddy, garbled bass. Enter a beautiful Sony unit!

• Subwoofer: SONY XS-W104ES
• Amplifier: SONY XM-GS100

This setup delivers clean, punchy bass that feels precise in songs needing it and stays subtle in those that don’t. I’m no audiophile, but for me, this is perfection! A DSP would be the cherry on top, but for now, the hacky JamesDSP app on my rooted phone does just fine.






Thanks again for the read, do let me know if you have any suggestions or remarks as to where we can go on from here.



She says Hi

Originally Posted by Deadskyi

Invest in a better subwoofer I'd say. It should tie the whole setup nicely. Underseat sub, especially Harman doesn't sound promising enough.

Hehe

Originally Posted by aBlueAltroz

Hi,

I also drive an i-Turbo, with wolf stage 1+ map. I have also installed cobra lowering springs with MRF Perfinza tyres and using an HPI air filter. Currently I'm happy with the setup. Just wanted to know how good is the diesel Altroz's brakes in i-Turbo?? And how did you procure it? Boodmo?

Also, I think K&N is manufacturing stock replacement filters. Has anyone installed it? Code6 has a stage 2 map for i-Turbo. Any thoughts on getting it done?

Thanks.

The brakes are solid! I sourced mine through Tata via my FNG. As for stage 2, I’d need a proper exhaust overhaul first. A decat might make this engine too noisy for my liking.
How’s your experience with lowering springs? I value the stock suspension’s balance for road trips, but if I ever upgrade, I’d consider fully adjustable coilovers. Thoughts?

[aBlueAltroz]

Originally Posted by CannedShroud

How’s your experience with lowering springs? I value the stock suspension’s balance for road trips, but if I ever upgrade, I’d consider fully adjustable coilovers. Thoughts?

Stock suspension was too soft for my liking. Especially the rear when driving alone. I could feel the body roll during quick direction changes. Thats why i wanted something stiffer. Coilovers wasnt available back then. So i went for Lowering springs.

Lowering springs is stiff, and the ride is on firm side. On bad roads and over potholes, you have to drive slow down. Your passengers will definitely complain the harshness. And the ground clearance is reduced and you have to keep that in mind. When you are with your family, you have to be careful not to go through speed breakers or bad patches too fast. Even you have to be careful over rumble stripes.

But on good roads, be it highways, twisties or even in city, the feedback and confidence you get to push the car is impressive. Ride is stiff but planted. Steering inputs are precise. Even the stock tyres felt grippy in corners. Im currently using MRF perfinza with stock dimensions 195x55 and the performance is more then enough for my still level. I am 100% satisfied with the setup now.

The possibility of someone making a coilovers for altroz is zero as the sales numbers of altroz is dropping each month.

And i felt the stock brakes are adequate right now. Never felt braking an issue after switching to perfinza. I am planning to get a downpipe and may be a stage2 map after that. Before that i think i should get some brake upgrades.

[aBlueAltroz]

Originally Posted by CannedShroud

As for options currently available to us, Raceconcepts BLR have options for steel braided brake lines for better pedal feel and also modding the rotors to be slotted.

Anyone installed steel braided brake line?