For GTV fans

[shokan]

through mid-late 90's alfa produced a gtv with a small bore (2L.) v-6 engine (basically a sleeved down 3L.) in order to negate
high domestic sales tax on plus 2 L. cars.
they were turbocharged, quite light....& produced little better than 200bhp.
i do not believe they were available in the u.k., but likely they are around as a result of gray market.

.....so long story, but upon our move back to tokyo have been poking around as to what to buy....(all around the block
from caterhams, to elise, to alfa 147 gta which was last car i had on my last japan stint).

looking at gtv's....like the style & came across a limited edition of the gtv tb (v-6 2l turbo).
have now confirmed they produced at the factory, on a partnership arrangement between japanese importer & fiat, & produced only for japan.

somewhat over 100 of these modified tb's were manufactured, all number plated (sterling silver plate to the left of the shift lever).
the care were badged as 'alfacorse'

here's what the factory did to these cars:
-coil spring rates (f & R) substantially stiffened over stock & car dropped 35mm(front) 10mm(rear)
-fronts swapped to bilsteins
-engine air intakes front increased & larger intercooler
-engine remapped & turbo boost increased
-all intercooler piping joints swapped from rubber to aluminum
-dual exhaust
-factory modified bumper for dual exhaust
-alfacorse spoiler
-carbon fibre bits in the interior.
in the end cars produced 17% more hp (almost 250 @ 6300rpm ) & 12% more torque.

according to the japanese forums they had formerly commanded a huge premium in the market....now not so.....here's 1 on the market now (there is another 1 for sale)....click on any thumb to enlarge the picture, & ck out front fender
induction vent (this 1 1998, 54,000km)

http://www.carsensor.net/usedcar/detail/CU03926734...

here's japan you tube of gtv alfacorse edition
http://www.youtube.com/watch?v=4KIz6sCDsiw&fea...

[crostonian]

That's interesting, never seen or heard about these before. Like the bonnet vents and rear spoiler, just the standard wheels let it down. I owned a grey import V6 TB in the UK back in 1997, it was cheaper than the equivalent RHD T Spark yet offered much more performance, I also owned a 164 V6 TB in Italy. It's one of my favourite Alfa engines, so sweet and easily tuned. My GTV had a four pipe Hormann exhaust, 18" Azev rims and Eibach springs, it also had an Autodelta chip taking it to around 260bhp. It was very quick but a bit old skool in the power delivery, the only downside is the sound of the V6 is muffled a bit by the Turbo.

[14-7]

I do recall one or two appearing on autotrader and ebay over the last 4-5 years.

I wonder how hard it is to get the downpipes for them in the UK?

Curious if they would fit the GTA engines .

[James Dean]

14-7 said:

I do recall one or two appearing on autotrader and ebay over the last 4-5 years.

I wonder how hard it is to get the downpipes for them in the UK?

Curious if they would fit the GTA engines .

The Phase 3 916 Spider/GTV came with the 'GTA' version of the Busso V6.

[TheTraveller]

Have seen one in the flesh in the UK, very interesting piece of kit.

[14-7]

James Dean said:

14-7 said:

I do recall one or two appearing on autotrader and ebay over the last 4-5 years.

I wonder how hard it is to get the downpipes for them in the UK?

Curious if they would fit the GTA engines .

The Phase 3 916 Spider/GTV came with the 'GTA' version of the Busso V6.

But they weren't turbo engines so won't have had the same down pipes.

They are also 240bhp not 250bhp like the GTA's (if we are talking about the same engines?).

[shokan]

14-7 said:

But they weren't turbo engines so won't have had the same down pipes.

They are also 240bhp not 250bhp like the GTA's (if we are talking about the same engines?).

think we are not talking about same motors. the gtv 'TB' i opened post with was a
small (tiny?) v-6 block only 2 l. with turbo boost stock from the factory at about
6000 rpm was capable of about 201bhp.
the modified special version i was discussing (alfacorse for japan only) produced 250hp, much
the same mods as 2nd poster outlined (but completed at the factory).
i would expect big advantage in the "jpnese alfacorse edition" would be low weight of small block engine,
lower/stiffer suspension set up & (as reported on japan alfa forums) less spool up time
on forced induction ......(perhaps same as autodelta chip).

[James Dean]

14-7 said:

But they weren't turbo engines so won't have had the same down pipes.

They are also 240bhp not 250bhp like the GTA's (if we are talking about the same engines?).

Sorry, I misunderstood what you meant.

[14-7]

shokan said:

think we are not talking about same motors. the gtv 'TB' i opened post with was a
small (tiny?) v-6 block only 2 l.

The initial post said it was just a sleeved down 3ltr V6 though which is what got me thinking if it is then the downpipes would be almost the same bar a feed for the turbo.

shokan said:

v-6 engine (basically a sleeved down 3L.)

Anyone shed any light on it?

[James Dean]

14-7 said:

Anyone shed any light on it?

The 2.0 V6 TB engine is a sleeved down version of the Busso engine, made for the italian market as there's a tax on engines bigger than 2.0 litres.
http://en.wikipedia.org/wiki/Alfa_Romeo_V6_engine

[14-7]

James Dean said:

14-7 said:

Anyone shed any light on it?

The 2.0 V6 TB engine is a sleeved down version of the Busso engine, made for the italian market as there's a tax on engines bigger than 2.0 litres.
http://en.wikipedia.org/wiki/Alfa_Romeo_V6_engine

We know that despite the initial confusion and without wanting to .

Are the downpipes for the 2ltr V6 the same mountings as the 3/3.2ltr V6 in that if you fitted then to a 3.2 would it allow the addition of a turbo? Or are the pipes different sizes given the amount of exhaust gas flow would be different?

[James Dean]

14-7 said:

James Dean said:

14-7 said:

Anyone shed any light on it?

The 2.0 V6 TB engine is a sleeved down version of the Busso engine, made for the italian market as there's a tax on engines bigger than 2.0 litres.
http://en.wikipedia.org/wiki/Alfa_Romeo_V6_engine

We know that despite the initial confusion and without wanting to .

Are the downpipes for the 2ltr V6 the same mountings as the 3/3.2ltr V6 in that if you fitted then to a 3.2 would it allow the addition of a turbo? Or are the pipes different sizes given the amount of exhaust gas flow would be different?

I blame it on my hangovers this weekend. God, I've made myself sound retarded.

[shokan]

14-7 said:

We know that despite the initial confusion and without wanting to .

Are the downpipes for the 2ltr V6 the same mountings as the 3/3.2ltr V6 in that if you fitted then to a 3.2 would it allow the addition of a turbo? Or are the pipes different sizes given the amount of exhaust gas flow would be different?

i'm not sure of the question, but i'll take a shot in the dark reply so if its off base or too detailed send
me an online smack

i've had several cars with forced induction, all supercharged
not turbo'd but principles are the same.
when you use the term downpipes i am assuming you are referring to exhaust headers (the term i am familiar with, sorry canadian).

basically you can add forced induction (especially a turbocharger) to any vehicle. the pressure in virtually any engine (at wot - wide open throttle) will easily create adequate waste gases to spin the turbine - create forced induction.
-a garret turbine, wastegate, some piping & a torch basically is the easy stuff...& while nice performance headers
(downpipes)seldom the issue
-hard stuff:
..remapping the engine to manage additional air intake & increased demands on fuel supply, MAFia, bigger injectors
& perhaps a BAP
..increase the air intake, new ducting preferably from above or front of engine (cold air intake)
..heat management, because forced induction creates so much added heat (engine stress) intercooler is likely
required (perhaps not for low boost....definitely for mid to high boost applications say anything above 6 or 7 p.s.i.).
also have to insure the gas-petrol you have access to is high enough in terms of octane (in an ordinary car low octane
may cause pre-ignition resulting in "pinging or knocking" - in a car with forced induction pre-ignition because of extra heat
will result in fried piston or scored valve.

forced induction is imo best power adder that can be done to any car if the internals & heads are strong enough to handle the stress (& most well assembled engines, with not overly high compression ratios can do so)....addition of a NOS kit is far cheaper & adds no more/no less stress to the engine, just have to keep refilling the bottles (& seems to have a bad rep!).

Edited by shokan on Tuesday 26th July 05:46