Hi All,

Firstly, I have done a search and read through a lot of threads, however it was hard to find some due to the fact '1.4' and '8v' are both too short for the search criteria.

Anyway,

I was wondering if somebody can let me know what sort of performance increase they (or someone you know) have had after tuning the 1.4 8v.

Having a few bevis last night and just thought if im gonna keep the car 3 years, im gonna have some fun with it.

I think i'm gonna start with a full exhaust, exhaust UK have quoted me £295 for full from the manifold.

I'm hoping to get it to around 90bhp.

I know it would be easier to get the 16v but that is not an option and want to have some fun with it.

I mean if I died tomorrow, I would rather die knowing i'v remapped by 1.4 8v punto.....

Thanks in advance!

Sam

some people have remapped a 1.2 8v so why not go for it pal the gains might be minimal buts its your car so have some fun with it.

Well i was speaking to my mate and he said you will notice a difference even as small as 5 bhp

To get power out of an N/A you need to get more fuel into the engine (and enough air to go with it) so you need a good cold air feed to an enclosed air filter, you want an engine back exhaust including manifold. That sorts out the air side. Then to sort the fueling a simple map is not enough, you want to look at some fast road cams and possibly a bigger throttle body.

okay, how much we looking at for road cams and throttle body?

sorry, but i dont know what you mean by engine back exhaust

Full exhaust system literally from the engine to the back eg removal of rhe manicat (catalytic converter and manifold are as one on the gp) new manifold and possibly a sports cat then the pipe work to a back box

right okay, so ill fail MOT. Hmm that could be some messing around. Especilly having to take the full exhaust off every year.

ill just get a sports cat, silly me

so anyone know if ill be able to achieve 90

What mph? Down hill with a tail wind perhapse........

thanks andy for that motivational comment

seriously though, do you think i could get 90 bhp out of it?

sammclean23 said:

thanks andy for that motivational comment

seriously though, do you think i could get 90 bhp out of it?

Click to expand...

depends how much money your willing to throw at it, what is the 8v? 75bhp?

i would guess with exhaust/intake/cams and remap would take it to 90-100bhp

yep, well 77bhp.

dont want to spend more than around £600 tbh.

see what i get from exhaust and induction up the front end, if im not happy ill get it mapped and some other stuff.

sammclean23 said:

yep, well 77bhp.

dont want to spend more than around £600 tbh.

see what i get from exhaust and induction up the front end, if im not happy ill get it mapped and some other stuff.

Click to expand...

Well exhaust is probably 300 for a cat back, double that for an engine back. An air filter will cost between 100-200 depending on the design, if you can get a GSR? or make your own out of silicone hoses like me.
Then a remap will be 250-300 for a custom job
I guess 700 will get you around 90bhp if not slightly over with a good map

You will not get great power from that engine, might be better off losing some weight from the car to get it a bit quicker.

cheers gymjunkie, about what i expected

vance: i know mate but it will be noticeable, right?

https://www.fiatforum.com/grande-punto/113644-grande-punto-1-4-8v-tuning.html


https://www.fiatforum.com/grande-punto/146256-grande-punto-1-2-8v-help.html?p=1538477


(yes jamies is a 1.2 but just about the same engine bar the bigger cc)


Oh and sort your brakes out first ;-)

Andy, cheers for those links.

brakes brakes!! i have them here ready to be fitted, just go to fit

I would have thought a remap would best left till after any intake/exhaust upgrades have been done?

For under 200 quid you should go for one of these, then when you get a bit of extra cash get the rest of your exhaust system done:

http://www.ebay.co.uk/itm/FIAT-PUNTO-4-2-1-PERFORMANCE-RACE-MANIFOLD-1-2L-8V-/180737104969?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2a14c55c49

Or this:

http://www.ebay.co.uk/itm/FIAT-PUNTO-4-2-1-PERFORMANCE-RACE-MANIFOLD-1-2L-16V-/180737124542?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2a14c5a8be

One of these should fit, depending on the layout of the manifold studs on your cylinder head, I know these should fit as John Ashley told me people have successfuly fitted these to Grande Puntos 4-2-1 style manifolds keep torque at the lower rpm comapred to 4-1 manifolds so a 4-2-1 should be a good improvement for your 8 valver

It's not a full system and can be taken out and swapped for your original one for MOT purposes in 15 minutes. A manifold like one of those will give you more gains over a manifold back for sure, and at a slightly cheaper price

Then look at getting yourself an induction kit with cold air ducting up to it and a bigger bore throttle body. Remap it after that I think you could probably reach 90bhp. After that if you're going to cam it I would port/polish the head first and finish of the rest of the exhaust system from the manifold back, and then re-remap it.

Maybe after that you could hit 100-110. But it is a 1.4 8v and though all these things are possible on your engine, be wary of the gains you'll get, have fun with it though - it's your car don't so let anyone hold you back!

excellent, thank you for those links and info!

Would this just fit onto the existing exhaust system then?

The thing is, exhaust UK have quoted around £300 for a full performance exhaust and if I fitted this manifold, there is no guarantee it would fit? correct me if im wrong, you know more than me here.

So, if purchasing this, would that mean i need to purchase the rest of the exhaust to fit the new manifold?

As for throttle body etc, how much am i looking in terms of £££?

EDIT: okay, say I buy one of these, will it be a straight swap or will I have to modify to fit

Sam

To buy or not to buy the above?

sammclean23 said:

excellent, thank you for those links and info!

Would this just fit onto the existing exhaust system then?

The thing is, exhaust UK have quoted around £300 for a full performance exhaust and if I fitted this manifold, there is no guarantee it would fit? correct me if im wrong, you know more than me here.

So, if purchasing this, would that mean i need to purchase the rest of the exhaust to fit the new manifold?

As for throttle body etc, how much am i looking in terms of £££?

EDIT: okay, say I buy one of these, will it be a straight swap or will I have to modify to fit

Sam

Click to expand...

First off, it's hard to tell from the pictures, but look at the stud holes on each of the 2 manifolds (the 8v manifold stud hole pattern has a more rectangular layout whereas the 16v is sort of trapezoid) and comapre them to the stud pattern on your car, if they look similar you're in with a good shout. Like I said I was told off the guy who made the manifolds that it fitted the 8v/16v Grandes but if you want clarification yourself give him a tinkle

John Ashley gave me a full money back guarentee so no worries if it didn't work
It did work anyways but was still a good thing to have and I'm sure he'd do the same for you mate.

No you wont have to change the rest of your exhaust. What he done for me was supply an extra section of pipe with flanges welded to it so it could be cut/chaped to fit between my new manifold and mid section, only 20 quid for the extra piece Check the angle of your flanges on your mid section and existing manifold, if they are not the same angle as any of the the above then I'm sure they can be cut off and either re-welded in a new position or new ones welded on in the right position, small payoff for a sweet engine upgrade!

In fact, sack that story - if you're looking at getting a full system from somewhere anyway then you are ditching your old system, so they would be able to build the system up to your new manifold - if you fitted one of the above - then they would weld on a flange to match your new manifolds flange, you get me?

Because I've still got my OEM mid section I've got the pain-in-the-arse job of trying to make my manifold fit - fits the head just doesn't reach my mid section - whereas if you're getting a new full system it will be made to fit - problem solved!

So exhaust UK quoted 300 for full system, is that including a manifold? If not I recommend fitting a manifold first then going to them and telling them to build a system around it to fit your manifold, much easier that way

As for your throttle body, I wish I still had my 1.4 8v GP to check I'll scan the internet and see what like they are and if there's others (bigger ones) that will fit.

Exhaust comes first though, if you bring more air into the equation without modilying the exhaust you'll only succeed in increasing the back pressure in the exhaust system which is brings a drawback in performance. The idea behind a performance exhaust is to make it as free-flowing as possible, so as the higher volume of air being brought into the engine has a better passage out and away from the engine, allowing you to burn more air/fuel mix and yes, make more POWER :devil: