What did I let myself into? Lol
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Originally Posted by deepakhon What about the gearbox? How much of torque can it take in the stock form? |
Unfortunately I can't answer this question for sure because I do not know whtehr the Linea T-Jet uses a Tata derived/specced gearbox or a Fiat unit. If it is a Fiat unit with original Fiat T-Jet spec then it will hold well together at 360Nm, which is what one of the cars I have perpaered is currently running and has done a lot of miles since the conversion. The owner of the car is holding a race license and takes the car regular through its paces on race racks. Also it has to be mentioned that the gearvox is strained due to unfavorable drive shaft angles due to lowering. The gear box is very strong.
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Originally Posted by kaustubh_vaze hey CPH,
I have asked this question a couple of times before this (on other threads) but never got an answer. So here's my question:
1. Is the 1.4 Fire in the Linea a DI unit? Or is it the regular petrol
2. If a DI unit, can it be fixed on the 1.6L Torque series engine on the Palio 1.6 Stile?
3. And then ofcourse can a remap and the Turbo + Intercooler shod on the Palio Stile?
Wouldn't it do wonders? Hoping desperately for your answers.
Regards,
Kaustubh |
GTO has answered your first question. The T-Jet engine derived from the original FIRE concept, which was designed long before DI in petrols were thought to be an oprion. The engine is not suitable for changing to DI.
This also answers your second question.
The third question can't be answered directly. The 2 units are very much different in design.
you can get out of the 1.6 a lot of power without a turbo before you even think of nitrous oxide injection.
If you want to turbo the 1.6 professionally (which means it won't reak down every 5 minutes) then you will have to spend about 1.5 to 2 times the amount of what the Palio costs new.
Either tell me in a pm or in a sepaerate thread what you want to do and I try to give you the best possible advise.
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Originally Posted by Ricky_63 Interesting read. So are you going to give us the correct way to bring the Linea T-Jet to pump out 165 Bhp on the stock turbo ??
Would look forward to that
Cheers |
Yes, I will. On my nexttrip to Mumbai I will have a couple of spare ECUs in my luggage, which I want to strap on to one of the Lineas.
Unfortunately, I need an ECU or the file of it to be able to see what ECU version you have and whether we can clone the ECU to the higher level (intercooler version). As soon as we have the ECU data the proper tuning advise can start here.
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Originally Posted by nitrous I personally would start off with an intercooler. |
Not necessarily. It depends on a few things. I would start with an air intake revision, which means already a lower charge temperature before it reaches the intercooler.
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Originally Posted by ajmat Thanks for this CPH - this will help a lot of ambitious folks keep their feet on the ground! |
I hope it does and hope even more so that people will listen to experience. Making mistakes on the T-Jet engine will cost a lot. A new engine will be around 2.5 lakhs.
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Originally Posted by GTO Nice thread, CPH. I foresee the T-Jet to evolve as a true enthusiast car. Some questions:
- When Fiat says its turbo is capable of 2.2 bar boost, how much is it actually running?
- Agree with Nitrous. An intercooler should probably be one of the first mods. Question is : Which intercooler? Do you have any recommended brand or website link you can refer to buy online?
- Ditto for any remaps?
For most owners, I don't see the need for a larger turbo. It's just too complicated. |
The T-Jet is running under 1 bar, the 150 around 1.3 and the Abarth SS around 1.5. The engine is high compression.
as the factory does fit an intercooler to the European models it would make senxe to use their stuff. Otherwise intercoolers are available from Italy for acceptable prices.
I am looking at the moment into the re-maps. I will keep you updated. as nobody has re-mapped the Indian version yet I can only advise to be careful on the maps offered. If they are not being dione spedifically for the non intercooler version - stay well clear of them.
And you are absolutely right. fitting a bigger turbo is headache. If it is not done in conjunction with the other mods needed the ECU will either make the engine loose power or it will go into limp mode and in some cases shut down the engine.
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Originally Posted by .anshuman Even i have similar questions: - Is the gearbox for T-Jet different than other variants of Linea/Punto?
- If No, How much max. torque can it handle?
- How does the tuning box for petrol cars like this work?
- Does it overfuel the engine to make more power just like the diesel tuning box?
- If Yes, will it have smoking problems like Diesel tuning box?
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1. is answered above.
2. We have not had any problems with the european version at 360Nm in daily use.
3. I would not use a tuning box personally as it is too much of a compromise because of igntion timing problems.
4. A tuning box works basically the same on the Diesle as petrol engines. What the tuning box misses is the ignition timing adaptation. On the chassis dyno you might get similar power results as with a re-map, but the chassis dyno will not show the real results because on most of the chassis dynos the roller mass will not be sufficient to simulate road conditions. So, don't be fooled by chassis dyno comparisons.
5. No it wouldn't. Unburnt petrol will not show up as diesel does. But if you overfuel that heavily, the engine will not run very well. first of all it will start to lose power and the Lambda probe will pick up on it and the ECU will go into yo-yo mode as it does fight between the Lambda reading and the mapping tables. also it it will do long term harm to the turbo seals and in due course bearings (which also applies to Diesel engines at excessive smoking).