328 engine Vs turbo intercooler engine

ok, I aready know that Nerofer will say "another time?", but i want to write my driving impression of the 2 valve 2 liter turbo intercooled engine versus the 4 valve 3.2 liter engine.

The small 2 liter does not have much thrust below 2500 rpm, but it's very smooth and you can shift from 1st to 3rd gear at very low RPM (to avoid the use of 2nd gear when the engine is cold) without any problem.
The exhaust sound at idle is stronger than the 328 as the turbo isn't a second silencer yet: the exhaust is more open than the 3.2 one.
At 3000 rpm the turbo begins to whistle and thrust reachs the 328 level. At 3500 RPM the boost gauge moves up quickly and the thrust widely increases, becoming better than the 3.2 liter engine: now the small 2 liter engine becomes very exciting and gives the emotion you expect from a Ferrari. There still is a lag even over 3500 RPM, but it's not dramatic and i consider it as part of the pleasant racing sensations the car gives you.

So what's my opinion? I consider this 254 hp 2 liter turbocharged and intercocoled engine as the fastest and better engine even installed on a 3x8 car, giving the power, the noise and the emotion you need. Of course that's just my opinion as i was there when there was first turbo era in F1, and this one was the first turbocharged engine ever (even if it's the rev.2 engine, the very first was the non intercooled version), so I like it for this historic reasons too.

This is true if we are talking of the sporty GTB: for the more "relaxed" GTS the 3.2 liter is a better engine, or at least better suited to that kind of car.



ciao
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The ending of the first turbo era in F1 is the real reason why they stopped the turbo. 288 GTO came out the year after the 208 turbo and F40 was still in production when the GTB/GTS turbo intercooler were out of production.

In my comparison there isn't the early years carbed engine (the high lift one of the fiberglass car), that i was told it's very powerful and with a very good intake sound.

The Turbo intercooler 2 liter engine can be easily upgraded at 280-290 hp without any problems and just with a small manual adjustment.

ciao

 

Dear Nerofer, if you read carefully the topic title, you will see it's "328 engine Vs. turbo intercooler engine". Not 328 GTS Vs. GTB turbo intercooler and so on. As GTB and GTS share the same engine, both 328 and turbo intercooler, it doesn't matter which car is installed into as i just talked about engines. I just added that the turbo is more adrenalic and sporty, so better have it on a GTB rather than on a more relaxing oriented GTS.

ciao

 

As Nerofer asked for it, here you are the data test summary taken from italian Quattroruote magazine, June 1986, where they compare the 328GTS and the GTS turbo. So they are both GTS.

Numbers say both do the quater mile in 14.5 seconds and the same 0-62 time (0-100 km/h, more or less 6,5 s), but they also show that in 5th gear the turbo is (by far) faster starting from 100 km/h. It needs just 7,6 s to go from 120 to 160 km/h (328 time is 9,3 s). The 328 is faster in 5th gear just from 70 to 100 km/h, when the turbo hasn't enough boost so the 328 has a big advantage (6,3 vs 8,7 s).

So figures confirm my driving sensations.

The 328 has a small advantage just over 6000 rpm, so you see it has a 4-5 km/h advantage in top speed (256 versus 251.6 kmh, due to the extra 16 hp over 6000 rpm), but usually you do not go over 6000 rpm so the sensation is that the turbo intercooler is widely faster in comon driving, when you stay between 3000 and 5000 rpm.

Yes, of course: the 328 has no lag!

ciao
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The new V8 Ferrari will be all turbocharged, of course. The GTB turbo was the very first one.
The first not intercooled one is a "bad" car not much reliable too and has a bad drivability, the intercooled one is completely different and is an excellent car too.

Not intercooled turbo (called 208 turbo):

displacement: 1991 cm3, V8
power: 220 cv @ 7000 Rpm
torque: 240 Nm @ 4800 Rpm
compression ratio: 7:1
boost pressure: 0,6 bar
Turbocharger: KKK




Intercooled turbo (called GTB/GTS turbo):

displacement: 1991 cm3, V8
power: 254 cv @ 6500 Rpm
torque: 328 Nm @ 4100 Rpm
compression ratio: 7,5:1
boost pressure: 1,05 bar
Turbocharger: IHI


Note the big torque (at lower RPM value) of the intercooled version. Even the compression ratio is bigger, giving a bit of torque even at very low rpm.

Valves and valve seats material are different too.

I do not know in which other markets they were sold.

ciao

PS for Kimbo: i did not buy the 308 GTB QV.

 

It's impossible there is a 0,7 s difference in the 0-100 km/h time between a 328GTB and a 328GTS. Cars have the same weight (more or less) and same everything, so i suppose they were not taken at the same time and/or the GTB was tuned. The only big difference in term of performance is the torsional stiffness, by far better on the GTB: that makes supensions and tyres work by far better on the GTB.

I'm looking for a 328 GTB: maybe one day i will find it and so i will write here the difference between the GTB turbo and the 328 GTB. But they will be the same i already wrote, apart from the body stiffness, as obvious.

ciao

 

maybe your B engine is better than the S one, as each engine is different in term of performances from another even when new: now they are 25 years old so the difference will be bigger. That's the only intelligent explanation i know, as the engines do not have any electronic (just ignition, so no different mapping is possible) and they were physically the same F105CB000 without any difference from a B or a S,taken random from the engine assembly line, without any difference from B and S. I have two GTB turbo (two, "B") and they do not perform the same way, as obvious.

I appreciate a lot you knowledge, despite i do not agree on this particular thing.

ciao

 

I had (early this year, so not much time ago) two 1987 Porsche 911, both 3.2 Carrera, both G50, both "H" series, both euro spec with no cat converter. But one Cabrio and one Coupè.

The Coupè engine outperformed the Cabrio engine, with an incredibly ferocious output since low Rpm and a big amount of power at high Rpm. Even the exhaust sound was different, despite both had the factory headers and silencers. They looked to be two different engines!

Two different Bosch Motronic mappings? No.
Two different camshafts specs between the two models? No.
Any different factory engine tech specs? No.

The Coupè had just 79.000 km while the Cabrio had almost 220.000.

Sometimes things are easier than expected.

ciao
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a video with the engine sound at idle of the '87 GTB turbo.

https://www.youtube.com/watch?v=oXuHS60-YPM&feature=youtu.be

ciao

 

Well i just purchased a GTS turbo intercooler, '88 built, chassis 78859. I did a small test drive just few hours ago.

I can now compare a 328 GTS with a GTS turbo intercooler: same body.

The result is the same: the V8 2 liter turbo intercooler is BY FAR more emotional and faster than the 3.2 liter V8. It's an head to head race if you keep the 3.2 over 6000 RPM but there is no game at every other RPM values.

The sound of the turbo exhaust is louder and more aggressive too.

I still consider the 2 liter V8 turbo intercooler BY FAR the best engine ever installed on a 3X8 car. I drove every 3X8 models except the carbed GTB: carbed 308 GTS, 308 GTBì, 308 GTB QV, 308 GTS QV, 328 GTS, GTB turbo and GTS turbo.

I my personal 3x8 engine ranking, the first place is held by the 254 hp turbo intercooler, an amazing and emotional engine.

And then this one has the Ferrara (FE) plate, that i think very suited to a Ferrari...

ciao
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No way!

i will do a waste gate special tuning...

ciao

 

As i already wrote, the 328 and the turbo intercooler are head to head at full throttle. But in the common sport driving at half or two Third of throttle, the turbo is a lot faster and more exciting. I have both, the 328 is a wonderful car, but the intercooler is even better, at least for my personal taste.

Ciao

 

Today I took possession of the "new" 328 GTB: a 60 miles trip from the former owner home till to Toni Auto shop in Maranello, through a very pleasant mountain road.

Then i went home from Toni Shop with the GTS turbo just serviced by them: another 40 mile Ferrari trip on open roads, no motorways: a very pleasant morning indeed!

So i get out from the 328 and get into the GTS turbo: a nice way to compare the two cars.

I read on vintage magazines that the turbo is as fast as the 328, but i would have bet that the turbo is much faster: the power explosione you have at 3500 rpm is really impressive and does not go down until the red line. Nice!

The 328 is fast, but does not give you the impressive kick in the ass like the turbo.

I have to say that the 328 engine drivability is much better than the turbo. The turbo is an "on-off" engine with just two driving mode: a relaxed "look at the landscape with your wife mode" and a savage "track-race mode".

I mean that or you always stay below 3000 rpm with poor power or you always stay over 3500-4000 Rpm with big thrust and power. It could be dangerous to stay in the mid: you could have a big and violent oversteer in sharp turns when the rpms cross the 3500 line: better never crossing the 3500 rpm line while in a sharp turn.

Also overtakes are more difficult with the turbo: you have to be in the correct gear with the engine at least at 3000 rpm or the overtake will take a long time. With the 328 you haven't any problem to overtake: just push the gas pedal, whatever gear you are.

Despitre this, i still consider the turbo as a more emotional and adrenalynic car, a great and fantastic Ferrari.

I think the 328 is better car due to its better and safer drivability, but not much better as many thinks to be and then it hasn't the "wow" factor the turbo has when you feel the big boost.

Here below some pictures of my "no wing" 328 GTB just arrived at Toni Auto, today at noon:
it's better than the turbo, but not so much as the price difference.

ciao
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