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Old 20-06-2002   #1
Spyder
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WHO IS SERIOUS ABOUT TURBO CHARGING

As the title says. I too am very interested in turbo'ing my Marea 20v. I've been looking at the conversions on the MARIANI site, who I've been told are one of the biggest tuners in Italy, it will cost about 2500 to buy, then it needs importing and fitting.
The owner of BETACARS is an old friend of mine and I am sure if we can get enough peeps we would get a good price.
I've also spoke to L&M tuning about it, they seem to think that cost would outway the advanteges and u would be better of buying a Coupe Turbo.

Let me no what u think as group it might be worthwile.
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Old 21-06-2002   #2
Ph1l
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Turbo

I'm trying to get some more information from ForzaTuning at the moment, but there not that helpful.
I agree it would be cheaper to buy a coupe, but the Bravo HGT is quite rare, which makes it worthwhile, I think.
I have been wanting to get mine done for ages, but it won't be for a few months yet, I'm in the middle of buying a house, so until thats done and settled I'll leave the car for now. But it will be done, definatley.
I have spoken to an engine builder who, although he has little FIAT experience, thinks the coupe and HGT engine are the same block, which means same mounting points, just with a modified head to account for the different compression etc of a turbo.
I'm after getting 250 BHP out of it, not too difficult and won't strain the drivetrain too much.
Let me know your thoughts, I want to get as many idea's as possible.
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Old 21-06-2002   #3
Spyder
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Re: Turbo

If u fit a turbo u will have to lower the compression ratio of the engine, this is mainly done by diff' pistons, not modified heads.
There may be an easier/cheaper route, what about fitting a new generation supercharger the new ones are basically a modified turbo charger, instead of being exhaust driven it is mechanically driven.
Having studied the engine bay I believe that if u were to remove the A/C compresser u could replace it with the supercharger.
Superchagering offers many advantages, less stress on the engine, less heat, more compact and less to go wrong, the power is also instant and does not rely on the turbo to spool up.

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Old 22-06-2002   #4
David
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Re: Turbo

250 BHP through the front wheels? Not really an ideal situation due to the amount of torque steer it will produce. A way around this is to get a traction control system, which means spending even more money.
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Old 22-06-2002   #5
mab
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supercharger

Would this be a cheaper option than the turbo? I thought the idea of dropping a coupe engine in was a good one and getting some money back for my hgt engine? or just buy a coupe which are good looking cars!!!
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Old 22-06-2002   #6
mab
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slave cylinder

Hi Spyder,

You seem to be the man in the know? my slave cylinder has gone on my hgt any idea how much it is going to cost to be replaced?

cheers

Mark
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Old 22-06-2002   #7
Spyder
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Re: slave cylinder

Sorry Mab m8, I haven't a clue.
Someone here mentioned Avanti Motorsport, I don't think theese guys have a clue about 5 cylinder 20v, they may no alot about the old twin cams.
The 20v engine is a very different engine and quite a specialized unit.
Turbo charging is not as straight forward as everyone thinks u simply do not bolt it on and tune.
Droping in a Coupe engine would be straight forward were it not for the very complex engine management and other computers on the car. One of the main probs' is the fact the coding for the keys, immobolizer and others spurious info is held in the ENGINE MANAGEMENT. So if u were to install another engine and matching ECU(engine management) then the codes for keys and immobolizer would be diff'.
If u were to ask Fiat to recode everything to match then u are talking at least 1,000.
I believe there are two options and both require using the original engine,
1) Fitting an after market turbo kit
2) Fitting a supercharger

Remember also that this amount of power thru front wheels would induce massive torque steer. The Coupe has what is called a VISCOUS DRIVE to try and aliminate this. I no many coup drivers who have also fitted traction control.
Viscous drive is a mech' unit which equalise the power transmision , good but not perfect.
Traction control is an electronic device that measure wheelspin and backs of the throttle by reducing the engine fuelling.

The end thank f?ck for that.
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Old 23-06-2002   #8
evo~paul
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Supercharging ?

Spyder,

In theory does this mean you could supercharge any engine ? i.e. 1.4/1.6 not just the 2.0

What extra power would you get
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Old 23-06-2002   #9
Spyder
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Re: Supercharging ?

In short yes, if u can find one to do the job.
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Old 23-06-2002   #10
evo~paul
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Supercharging ?

Thought so, i've enquired with someone already and awaiting and answer
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Old 23-06-2002   #11
Spyder
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Re: Supercharging ?

evo~paul let me no how u go, as I'm very interested in any info u get.
cheers m8
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Old 24-06-2002   #12
evo~paul
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Supercharging ?

Ok Spyder,

Guy has come back to me, says that Supercharging will almost cost the same as Turbocharging and he says the cheapest way to go is NOS.

He can do NOS with computer which progessively controls the amount of NOS according to how you accerlerate.

He also says he can probably sort out turbo for about 3k
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Old 24-06-2002   #13
Spyder
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Re: Supercharging ?

Yeh have looked at NOS, but just doesn't feel right and if its not prop' installed it will destroy your engine.
Would be interested to no which garage u spoke to, if u don't mind that is.
I'll investigate further about turbo and supercharging, but as I'm movin soon it might take back seat for a while.
Let me u no what u decide and how u get on.
Going to BETACAR tommorow to talk about normal tuning i.e porting, balancing and may be blueprinting my engine. It all depends on how much tho.

Cheers evo~paul.
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Old 24-06-2002   #14
evo~paul
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Supercharging ?

No worries Spyder.

Guy i spoke to was Tony, informed him that people on the forum was interested.

Go to www.rudecar.co.uk for contact info

The NOS option is 1500 so will have to start saving a bit first, will let you know
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Old 25-06-2002   #15
Dug
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Insurance

I think you'll have a nightmare getting insurance if you run NOS. I'm not sure if its legal on public roads, either.

You might want to get an insurance quote before you decide to go for it.

NOS does work well: one theory is that it's less harsh to the engine than a turbo, partly because it isn't running all the time, and partly because it can phase the power in more gradually.

Have you thought of running your car on nitro????
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