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Old 01-01-2021, 04:44 PM   #1 (permalink)
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Mods on my little Punto T-Jet

I did not write on here for a long time, I changed a few cars and thought I could write about the mods I did to my latest, a little Fiat.

It is a Fiat Grande Punto 1.4 T-jet 2009.
I bought the car with LPG install already done. Since it's a clean fuel and half the price of gasoline it makes the car pretty Eco friendly..
The 120 HP it has factory is nice but not enough given the fact that it's called a Sporting.. So came the need for modding
The 17 inch Abarth wheels with wide low profile tires it came with were very nice but made the ride comfort bone shaking. So I changed to 16 inch with a narrower tire size. This gave me around 0,5 litre/100km better fuel economy and less harshness on potholes.
I wanted more power since the car wasn't fast enough given the still sporty looks, so I got it remapped. Now it had good torque like a diesel but was choked in the higher rpm range. Even better the city fuel usage became less dropped from 9,6l/100km to 9,1l. Highway economy stayed around the same 7,5l/km.
Then I realized that my 5th gear was too short..(sadly no 6 speed box in the sporting). So I searched around an find out the Diesel has the same box with longer gears. I managed to find a set and changed them. This dropped the highway economy to 6,9l/100km.
The stock turbo is really small even by European standards so I changed it to the Abarth Grande Punto's witch has a bit bigger compressor. The turbine housing was cracked so i bought a Chinese housing but I did not like the rough surfaces so did some work to it. This costed some low end torque but actually caused better city economy because boost onset is later in the rpm range.
Another mod I done is not economy related. I changed how the electric power steering reacts. It was over doing the helping when I turned the wheel suddenly but a small amount. So i have put a small circuit inline with the sensors under the wheel. Now I can modulate it with a pot.

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Old 01-01-2021, 05:35 PM   #2 (permalink)
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Subotica looks like a nice place. I like Art Nouveau.

The Punto is pretty sweet. According to Wikipedia is was designed by Giugiaro. Do you have the three-door or five-door model?
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Old 01-01-2021, 06:02 PM   #3 (permalink)
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It is a nice place. A lot of buildings from the end of 19th and start of the 20th century in Secession art style.
They call it a mini Maseratti
It's a 3 door, I kinda like those more in a small hatchback..
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Old 01-01-2021, 06:47 PM   #4 (permalink)
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4-door driver's doors are too short for my ...needs.

My Dasher was designed by Giurgiaro.



I consider that a mid-size.
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Old 01-01-2021, 07:53 PM   #5 (permalink)
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Quote:
Originally Posted by freebeard View Post
4-door driver's doors are too short for my ...needs.

My Dasher was designed by Giurgiaro.



I consider that a mid-size.
Well the Punto is 4 meters long but has suprisingly little space in it.. There is no boot basically..
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Old 01-01-2021, 08:19 PM   #6 (permalink)
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Wikipedia says 3,760 mm (148.0 in), same as the XFi. The slant-back Dasher can't compare with the VW Squareback.

Do you have further plans?
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Old 01-01-2021, 08:23 PM   #7 (permalink)
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Is the 120hp version fitted with the 8-valve cylinder head?
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Old 01-02-2021, 09:06 AM   #8 (permalink)
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Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
Is the 120hp version fitted with the 8-valve cylinder head?
Basically like the 1.4 Multiair engine minus the multiair system..
It, has the same 16v head as other non turbo FIRE 16v engines.
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Old 01-03-2021, 01:11 AM   #9 (permalink)
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Quote:
Originally Posted by Megdriver024 View Post
Basically like the 1.4 Multiair engine minus the multiair system..
So it's basically the same engine fitted to a similar version in my country, yet it was the 150hp version. IIRC the 120hp version was also fitted to CNG-capable versions of the DoblÚ and the Bravo in Italy and Germany.


Quote:
It, has the same 16v head as other non turbo FIRE 16v engines.
The only application for the 16-valve 1.4 without a turbo in Brazil was the 500 while it was still sourced from Poland instead of Mexico and switched to the 8-valve.
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Old 01-03-2021, 05:33 AM   #10 (permalink)
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Most cars in my country are from import. This car is from Italy. It was availaible there with the 1.4 8v 75HP; 1.4 16v 95 HP; 1.4 16v turbo 120HP among a few orhers.
The Abarth version has the same engine with bigger cams and turbo. That is the 155HP version of the T-jet.
That same engine is in the Nuova Bravo 150 HP i guess that is the version You speak about.

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