ok so I was messing around trying to work out a custom induction kit using what I have lying around and I couldn't help bu noting how pathetic the stock TB and inlet are, so what I was wondering was, is there a larger better designed one that's a straight fit??? maybe off a 1.4, or a newer 1.2 8v.

Any advice would be great, i'm not looking for the world from this car just some cheap simple mods lol

cut and shut a plastic manifold
cant see how you are going to work out the injection pulses though

Pathetic is - it barely works

However - the 8v manifold works fine, so how can it be pathetic?

Gotta remember the plastic construction is to save weight
the short path is due space constraints and weight again
Manufactures make it so that the part works to allow air to be bunged in

Which it does!

Gotta remember the 8v is also the injector seating as well! there will be some effects that the inlet has to create swirl to help get it into the combustion chamber!

So question - is it patehtic? No not really

Will 16v work? Nope as i believe they are different stud patterns
Will a newer one work - dont think so - also you gotta content with movement of components and new sensors giving different readings



Ziggy

There's no bolt on fitment (stud placement). Later 16v are FBW (probably later 8v, too).

If you can get the complete inlet mani off an early 16v (or possibly off a Marea) you could maybe cut the TB flange off and with some cunning dremelling and a super epoxy use that to enable the fitment of a bigger FIAT TB.

No guarantee that it would work, but the only alternative is a non FIAT TB and an aftermarket ECU.

You may well need a remap. The MPI engines are nothing like as easy to tweak as the SPI engines.

ok need to clarify a few things.

1, By pathetic I meant really small, it looks to be around 30mm, my 1.1 Cinq ran a 32mm and my 1242cc ran a 40mm.

2, at no point did I mention wanting to fit a 16v inlet, I was more thinking along the lines of a 75 inlet and TB or maybe a newer 1.4 8v Grande Punto inlet and TB,

3, re-map is not an issue at all as I have a friend that will sort me out.

all I want is to have it breathing better and have the engine be a little more responsive, a little more power wouldn't be a bad thing either lol.

mariocinq said:

ok need to clarify a few things.


2, at no point did I mention wanting to fit a 16v inlet, I was more thinking along the lines of a 75 inlet and TB or maybe a newer 1.4 8v Grande Punto inlet and TB,


all I want is to have it breathing better and have the engine be a little more responsive, a little more power wouldn't be a bad thing either lol.

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And at no point did I suggest fitting a complete 16v inlet.

The P75 inlet is a dead dog except insofar as it's easy peasy to port. It needs modification to take the smaller (physically) Pico type injectors, and the impedence of the old and newer types of injectors is different. The ECU will have a hissy fit which cannot be overcome by mere mapping. And you'll have to convert from return to non return.

The 1.4 8v inlet manifold comes ported (you'll need to port match the head to suit). But I'm unsure of the TB dimensions or style.

P75 exhaust mani would be a good buy, but you'll have to use an earlier style cat and an extra boss for the second lambda.

At some point, stuffing extra air and fuel into the (internally stock) engine will become a complete waste of time and ultimately have a negative effect on throttle response and even performance. Such is life.

so just to get it right
the 1.2 shopping engine is just right for
er shopping
of course one can make it make farty noises and wooshy noises to upset the neighbours if one wants

theres an old saying but one i love
you cant beat cc's
ok the 1.0 ecoboost ford blows the myth but who wants a car with a timing belt running in oil

s and b said:

the 1.2 shopping engine is just right for
er shopping

Click to expand...

Mind you, there's one in Sheffield with a whopping great big turbo (well, relatively) and methanol injection putting out something like 170bhp.

Still, n/a tuning on a heavy old Mk2 is really starting in the wrong place with the wrong engine (and probably the wrong budget).

I wasn't ever looking for big BHP from it, would be happy with getting it to 75-80bhp, its just so flat at the mo lol.

my mate in Sheffield has a Cinq 1242cc 8v turbo that last time I know it went for a map they had it running 210bhp but turned it down to 190bhp to make it sort of driveable. that's running methonal injection, standalone (I think) gt1574 turbo, been in it and its rather quick lol.

but i'm not looking for that, I just want simple cheap mods to gain a few bhp to make it less of a bore on a trip lol. like I say, if I got it to 80bhp I would be well happy with out the hassles of an engine swap. remember that this is just a cheap daily lol and not a full on project.

You need ported and polished throttle body (36 -> 40mm), GSR induction kit, 866 camshaft, full Supersprint exhaust and remap to reach +80hp.

jonik said:

You need ported and polished throttle body (36 -> 40mm), GSR induction kit, 866 camshaft, full Supersprint exhaust and remap to reach +80hp.

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you forgot one important factor the most important factor and one most people ignore
to add a good tight 1.2 8 valve is chalk and cheese to one that is down on puff and its not always a mileage reason issue either
engine needs to be in good order and compressions need to be as factory

The camshaft upgrade, seems to be the right step

but how do you get round this on a late 8v engine?

wouid it run with phase sensor missing

oldhammer said:

The camshaft upgrade, seems to be the right step

but how do you get round this on a late 8v engine?

wouid it run with phase sensor missing

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it would with an m2
no idea what it would run like though

ah rite, cheers

imight have aplay then,

i need to find 866 camshaft in scrapyard, if theres any,

oldhammer said:

ah rite, cheers

imight have aplay then,

i need to find 866 camshaft in scrapyard, if theres any,

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Good luck, been looking for a week and they are rocking horse **** lol, at 1 point I had 3 of them lol. now I cant find 1 anywhere lol.

iwill have a hunt round,
only about 19yards to trawl through,

had a look on ebay but theres nowt,
iweighd two rusty old mk1 punto's in a short while back n all

oldhammer said:

The camshaft upgrade, seems to be the right step

but how do you get round this on a late 8v engine?

wouid it run with phase sensor missing

Click to expand...

The phase sensor -- at least, on the Mk2s -- is on the pulley, not on the cam. Alternatively, those nice folk at Columbo e Borriani will give you a better cam for a few Euros.