Firstly, I'm pretty much ignorant of the ins and outs of an engine - I've an idea how it works but have no idea how it all goes together - I just enjoy driving so concentrate on that rather than how it actually works!

I'm thinking about changing my air filter - not entirely sure why but I reckon if the likes of K&N's statements are true - then I could be adding another 2 or 3bhp to my car without any proper 'mods'.

Does changing the air filter make any difference? I've no idea where it is in the engine bay or how to replace it (or even what shape it is) - but I'd like to know.

Also, if the new air filter does give an extra few bhp, what does that do to fuel economy? I'm figuring it won't do anything as in my head the improved air filter reduces blockages for air so it should improve things...

Finally, what is recommended? I'm not looking to do anything serious or major in modding my car as I think it is alright as it is in standard Tjet Sport mode.

And my last query - by changing the air filter - does that mean I have to let the insurance company know it has been changed?

Thanks.

I always fit the genuine manufacturers air filter as some of the cheaper copy parts can slightly restrict air flow.
Performance filters may increase performance but as a purist I like to keep my car as it came out of the factory.

Take it this is The Dick Barton who used to Frequent BikeMagic? :wave:

I wouldn't bother replacing the filter with a K&N if other fiat cars are anything to go by the fiat engines like a restricted air flow. By rights you should inform the insurance of any mods that are different from the factory spec

some cone/panel filters including the K&N can cause problems with the MAF sensor by alowing a build up of oil to collect on it from the gauze


if you want to replace it with a OEM fiat filter have a look on www.shop4parts.co.uk

if you donate to the fiat forum you can access a discount code through members offers to save 5%

Thanks for that Andy - I'm not thinking K&N specifically, more just the idea that fitting a different air filter might get me some extra horses without any real effort!

And yes, I am 'The Dick Barton' (am I that famous???) that still uses Bikemagic - just don't post as much as I've been too heavily involved in Carron Valley - which is another story altogether!

DickBarton said:

Thanks for that Andy - I'm not thinking K&N specifically, more just the idea that fitting a different air filter might get me some extra horses without any real effort!

And yes, I am 'The Dick Barton' (am I that famous???) that still uses Bikemagic - just don't post as much as I've been too heavily involved in Carron Valley - which is another story altogether!

Click to expand...

the name just clicked when i saw it that and the single track comment in your sig....

if you really do want a performance air filter look into the GSR induction units but they aint cheap do a search you should find a vast array of info some good some bad..

I just replace the paper element of my punto every year and blow it out every few months with an air line..

never seen under the bonnet of a bravo so can't help you find the air box but with a bit of a hunt you should soon be able to track it down..

You haven's said wich engine you have. K&N has panel filters for the 1.4 16v and 1.9 mjet engines. And with that you wont get 2-3 hp on the 1.4 16v

Is it really all about 2 or 3 bhp?? I thought the performance filters add at least 10. I wouldn't do it for 2-3, that's like 1-2% increase...

lyubohar said:

Is it really all about 2 or 3 bhp?? I thought the performance filters add at least 10. I wouldn't do it for 2-3, that's like 1-2% increase...

Click to expand...

This you only would get from a bespoke induction system.

lyubohar said:

Is it really all about 2 or 3 bhp?? I thought the performance filters add at least 10. I wouldn't do it for 2-3, that's like 1-2% increase...

Click to expand...

And every sticker adds at least 5 hp..lol..

On a tjet 150 with a quality replacement filter you could maybe get 2 or 3 hp, but on a atmosphere engine under 100 hp no way. Take a look at bmc dynos web page with car that have bmc cda system installed

I would then get more bhp if I put myself on a diet. 2-3bhp just don't worth the extra money IMHO.

I had a k&n panel filter on my 1.2 16v punto and it's was worth it. Because, they change the air filter on 40 000 km. I took my original out on 25 000 km and it was very clogged ( simillar to the t-jet's on 15 000 ). And had it for 70 000 km in the car without a problem ( you just have to oil it carefully-not too much ). I didn't boost the performace of the punto, but mine had the lowest fuel consumtion of every 1.2 16v in my former fiat club no matter the driving conditions ( k&n guarantees 10 % lower fuel consumtion )

1.4 TJet 150bhp petrol - sorry thought I'd mentioned it...

špeljac said:

And every sticker adds at least 5 hp..lol..

On a tjet 150 with a quality replacement filter you could maybe get 2 or 3 hp, but on a atmosphere engine under 100 hp no way. Take a look at bmc dynos web page with car that have bmc cda system installed

Click to expand...

The CDA is not an induction. A properly designed induction can give you quite an increase in peak power and aven more low down torwue. We have proven this often enough.

On the T-Jet 150 engine we didn't have a massive power increase with fitting induction only, but have seen a dcramatic increase in low down torque and were able to increase the peak power with a re.map further thaqn possible without the induction.

What is the best 'kit' to use out of the GSR and a BMC CDA?

I currently have the GSR fitted to my car and don't have a single complaint about it. Since I've fitted it I have been more than happy.

However, I also have a BMC CDA sitting in my garage doing nothing at this moment in time and was wondering whether I would be improving induction with the CDA? Simply keeping the same sort of results as I am getting with the GSR or decreasing the results that I am getting with the GSR at present?

BRAV-OH!! said:

What is the best 'kit' to use out of the GSR and a BMC CDA?

I currently have the GSR fitted to my car and don't have a single complaint about it. Since I've fitted it I have been more than happy.

However, I also have a BMC CDA sitting in my garage doing nothing at this moment in time and was wondering whether I would be improving induction with the CDA? Simply keeping the same sort of results as I am getting with the GSR or decreasing the results that I am getting with the GSR at present?

Click to expand...

Keeping it as it is is the better option.

Oldschool said:

Keeping it as it is is the better option.

Click to expand...

Are you just saying that

Nah just kidding. Thanks mate

where can you get induction kits for the bravo i have looked and carnt find one for my m-jet i have seen them for the t-jet

I have a 150 t jet and put a K&N Apollo Filter on. I did it initially to see what it would be like and ended up keeping it there. Simply took the cylinder paper filter out and attached the cone filter to the centre tube (intake). It doesnt make it particularly noisey but does make it sound like theres a blow off valve installed. It also makes it a little bit nippier off the lights.

danny120T said:

where can you get induction kits for the bravo i have looked and carnt find one for my m-jet i have seen them for the t-jet

Click to expand...

Get me an M-Jet and I will make one.

First of all Im not going to knock the gsr kit. Neither am I going to say anything negative against a remap.
What I am going to say however is the price .
If you want to spend the best part of £200 on a induction kit, & a lot more on a remap, that is entirely up to the individual.
On most small engined cars you will see little gains for the money.[most expect more]..
Getting cold air in, & less restrictive is the way to go as most know.

I read some slating the K&N on here, but its not a bad filter, its just not designed for some cars in the Fiat range, for instance the Mk1 punto.
The K&N just sits on top of the throttle body & sucks in hot air.
It is quite easy to make your own induction kit, if you're on a budget.

If you have a half decent home made induction kit & a decent zorst,
you will see a bit more responsiveness.

At the end of the day you're not going to notice a couple of horses
here & there comparing things at this stage.............Especially so, for small engined cars....