Technical Need Advice: 1.4 Sting + Turbo or Supercharger

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Technical Need Advice: 1.4 Sting + Turbo or Supercharger

Luciel

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Sep 10, 2005
Messages
376
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Location
Mijas Costa, Spain
Hi Everyone,

Admitedly it´s been a few year since I last posted here. So, my beloved Stilo Sting 1.4 6 Speed baby is now 6 years old. I´m still as much as in love with it as the day I bought it.

Unfortunately, it´s reached the point where I find it´s 1.4 95Hp "fire" engine lacking. I don´t care much for top speed as the fastest I go is 140Kph on the motorway (I think that´s something like 85 mph) and the stilo will reach that quite happily while keeping it a very comftable ride and not throw a fuss but I do find it´s acceleration very poor.

I have a decent job, and lately I´ve been thinking of changing cars, I´ve had 2 fiats in my life and I´m happy with it so I´ve been looking at what fiat currently has to offer. To my surprise, it seems they´ve really been trimming down their engines, was it my imagination or didn´t there used to be a bravo 1.4 with 140+hp? Right now, fiat (at least in Spain) has nothing to offer which even matches mine (in the petrol range, don´t care for diesel) which is dissapointing.

I took a look at the abarth offerings and to start with I don´t care for the 500. Plus I´m 6 feet tall and I think I´d just look stupid in one of those. The Punto Evo is nice but it doesn´t drive me crazy and starting at 21000€... well... no.

So, I took a look at the second hand market, and started looking at alfas... lancias... and other whacky stuff and I came to a conclusion.

The only reason I want to change my Stilo is because I find it lacking in power but I´m so in love with how it looks that... I really don´t want to get another car, not to mention the so many things I´ve been through with this car that just the massive sentimental value alone sways me not to change it for another, hell I think I may keep it till the day it dies beyond repair.

So I started looking at second hand abarth stilos...I can´t quite put my finger on it but I think there´s some minor styling changes in the Stilo Sting that when I see other stilos, they just don´t have the same effect on me, it may be the "my car" effect but... dunno (feel free to take a look) so Abarth Stilos our not an option either...

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...All that and sentimentalism aside. I need some advice on what can I do to improve the performance. I have a decent ammount of money saved up so I´m not looking to save a penny, I´m looking for what would be best and most reliable (aside from not doing anything to it of course).

I went down to my local Garage to which my family has taken our cars for mantenance, repairs and other for years, so I guess what I´m saying is I trust them to give me decent advice. I also know they´ve played with amateur race-day cars so I feel they know their way around performance parts.

I went through the options with them. They adviced me against changing the engine for a bigger one (which was my first obvious option). As they think with the stilo it will just cause me a lot of issues down the road. What do you guys think about that?

The second thing we considered was a complete induction and exhaust system + ecu remap. However they feel that while this will give me some improvement it may not be what I´m looking for as, in their words "It´s more of a tuneup for a car you´re already happy with rather than a tuneup expecting to make you happy with a car you´re not".

The third and final option we came up with was either a Turbo or a Supercharger. I personally don´t understand to much how it works but they explained that while a turbo would provide more power, the supercharger does not have lag and it´s continous power rather than at certain points in the rev range. So they called around and what not and they recon the right turbo may give me 200+hp (which again I don´t understand much about this but it does seem somewhat unbelieavable you could get over 100% performance increase from 95hp). This of course begs the question of if the clutch, gearbox, etc can take this kind of power as they where not designed for this. I don´t know the model numbers but if it helps the gearbox in this stilo is a 6 speed model which I believe was later used in the higuer end bravos.

So, if I went for the third option, would I need to change other parts within the car? What kind of problems am I looking at down the road?

Are there any other options you guys can think of?

Thanks for reading and replying guys!
 
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Nice Stilo you have :)

I'm in a similar position, I've got the 1.2, I've upgraded the interior and like it too much to get rid of it, plus the engine is soon to pack in so I'm looking at my options for a new engine.

I could fit the 1.4 engine (the one you have). Induction, remap and a proper exhaust system including tuned decat manifold and head work and uprated cams could see 130bhp possibly. Sounds good for a 1.4 but if you think about it that's just under what a 1.8 stilo has.

As the garage have told you, fitting another engine from a different stilo will give problems most likely with electrics.

Is the Grande Punto TJet available where you're from? That would be a good engine to fit in your Stilo. Will drop right in with your current engine mounts, it will require a bit of work regarding the ecu but it would be a better engine to run compared to turbo-ing your current 1.4. You would have 150bhp straight away and depending on the tuning you do after you could see over 300bhp. This is the direction I'm wanting to go in, it's just trying to work out what would be best for the ecu side of things and wiring it up I'm not sure about.

I like the idea of fitting a tjet engine as it would bring the Stilo bang up to date with fiats modern engine technology :) the stilo should have had a petrol turbo to begin with anyway!

I remember getting a quote from Rotrex for a supercharger kit they offered for the 1.2 Stilo and it was somewhere in the region of 4-5k (£s). Not worth it in my opinion. My theory is if you're wanting more power from your Stilo and your not wanting any other car then do something unique, otherwise it's a waste of time and money :) that's why tjet is on my mind :D

Good luck with whatever you end up doing
 
Thanks! I try to take as much care of it as humanly possible ^^

I think you would notice a massive improvement with those modifications since you come from the 1.2 which I imagine is painfully slow? However as I mention I´m not sure I would with the 1.4

The engine idea is also a decent one but again they mentioned that I would most likely have a massive headache with the electronics so not sure it´s worth the hastle?

I´m not sure why they gave you such a massive quote for the turbo, my garage mentioned it would cost me (turbo + according ecu remap and gear ratio changes) within the range of 1-1.5k (euros) so not sure if your garage is talking something completely different or they are simply trying it on?

As with you, all the best of luck if you decide to go ahead with either option :)
 
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