Supersprint claim dynod 24.4bhp gain on 360!!

[360trev]

Supersprint the Italian performance exhaust specialist are finalizing a new exhaust system (full exhaust including optimized headers, high flow cats and back box system) which it has dyno'd with some remarkable results.

Their sales blurb is ;
'Every Supersprint system has been researched, designed and tested to insure additional power and to enhance overall performance. All design is validated by extensive testing which includes hours of dyno testing on Supersprint's Maha 4-wheel chassis dynamometer. In fact no other exhaust manufacturer, race team engine testing department or car manufacturer has the performance evaluating experience of Supersprint'.

I'm sure Tubi & Capristo would disagree with the above on the experience bit

Ferrari 360 - Claimed Performance data (Manufacturer Claimed):
Horsepower : 400 BHP at 8500 rev/min
Torque : 373 Nm at 4750 rev/min
There where some surprises, Ferrari had always insisted that the 360 makes 400 bhp but the dyno painted a different story with real numbers showing a significant power loss.

Ferrari 360 - Actual Performance data (Factory System):
Horsepower : 384.9 BHP at 8650 rev/min
Torque : 376.5 Nm at 5960 rev/min.

The 360 Modena they tested was 15 BHP down on power compared to the official claims. Ferrari always officially said that a 2% variance in actual power output between engines was possible and this could account for ~8 BHP of losses between one car and another (engine tolerances, balancing, wear, etc.). The power difference was only 0.5% on the 360CS with its essentially blue printed engine.

So, where Ferrari telling porkies or was this test car not up to scratch? Whatever is the case, Supersprints dyno'd gains (with the same car) gave;

Ferrari 360 - Actual Performance data (With Supersprint System):
Horsepower : 409.3 BHP at 8660 rev/min
Torque : 386 Nm at 5770 rev/min.

This is interesting stuff. I wonder just how much of the power gain on the 360CS is down to blue printing and how much is down to improved breathing?

Q. Where do you guys think the 24.4 BHP power gains are coming from, Backbox? Manifolds or CAT's?

If its true that a free breathing backbox gives approx 9bhp, is it safe to assume the CATS and manifolds are equall or is it the freer flowing cats providing the big hike in power over stock?

[philworrall]

Boy oh boy that is one tasty looking piece of engineering. Is a pity most of it is hidden away from view.

Phil W

[360trev]

I always liked the Capristo backbox over supersprint...

[contiki]

Boy oh boy that is one tasty looking piece of engineering. Is a pity most of it is hidden away from view.

Phil W

I did not see the SuperSprint for 360 but from my experience those they make for BMW are of inferior quality to most competitors. There were also some reported reliability issues with some of their products.


Having said that, 24 bhp is the very least I would expect from changing to equal length headers, 100 cells cats and free-flow backboxes.

[360trev]

I dont know about supersport, never used them before.

I searched on the web and spotted that their equal length headers cost 1500 quid from uk suppliers. What I really wanted to know is where are the power gains actually coming from, the cats? or the headers? I assume biggest power gains are from the backbox (about 9 or 10hp?) and then followed by the cats and header? Anyone know how much each usually would give on their own?

[contiki]

I would not know how much each would give on it's own but from what I was told in the past the benefits come first from the equal length header, then sports cat then back box. Again, this was from a BMW tuner concerning a BMW system, not Ferrari. The same tuner was the one who did not think their quality was very good, especially the headers. Cannot remember the details though.

[Haythem]

Supersprint the Italian performance exhaust specialist are finalizing a new exhaust system (full exhaust including optimized headers, high flow cats and back box system) which it has dyno'd with some remarkable results.

Their sales blurb is ;
'Every Supersprint system has been researched, designed and tested to insure additional power and to enhance overall performance. All design is validated by extensive testing which includes hours of dyno testing on Supersprint's Maha 4-wheel chassis dynamometer. In fact no other exhaust manufacturer, race team engine testing department or car manufacturer has the performance evaluating experience of Supersprint'.

I'm sure Tubi & Capristo would disagree with the above on the experience bit

Ferrari 360 - Claimed Performance data (Manufacturer Claimed):
Horsepower : 400 BHP at 8500 rev/min
Torque : 373 Nm at 4750 rev/min
There where some surprises, Ferrari had always insisted that the 360 makes 400 bhp but the dyno painted a different story with real numbers showing a significant power loss.

Ferrari 360 - Actual Performance data (Factory System):
Horsepower : 384.9 BHP at 8650 rev/min
Torque : 376.5 Nm at 5960 rev/min.

The 360 Modena they tested was 15 BHP down on power compared to the official claims. Ferrari always officially said that a 2% variance in actual power output between engines was possible and this could account for ~8 BHP of losses between one car and another (engine tolerances, balancing, wear, etc.). The power difference was only 0.5% on the 360CS with its essentially blue printed engine.

So, where Ferrari telling porkies or was this test car not up to scratch? Whatever is the case, Supersprints dyno'd gains (with the same car) gave;

Ferrari 360 - Actual Performance data (With Supersprint System):
Horsepower : 409.3 BHP at 8660 rev/min
Torque : 386 Nm at 5770 rev/min.

This is interesting stuff. I wonder just how much of the power gain on the 360CS is down to blue printing and how much is down to improved breathing?

Q. Where do you guys think the 24.4 BHP power gains are coming from, Backbox? Manifolds or CAT's?

If its true that a free breathing backbox gives approx 9bhp, is it safe to assume the CATS and manifolds are equall or is it the freer flowing cats providing the big hike in power over stock?

Do you think a Tubi with De-cat and original standard Manifolds would give more bhp gain then the setup above?

[911elias]

I would not know how much each would give on it's own but from what I was told in the past the benefits come first from the equal length header, then sports cat then back box. Again, this was from a BMW tuner concerning a BMW system, not Ferrari. The same tuner was the one who did not think their quality was very good, especially the headers. Cannot remember the details though.

Power is a function of time...the more air/fuel mic you can get in (and out) then the greater the power at any engine speed...so the individual elements of the exhaust system (headers, cats, muffler) are greater in conjunction with each other than the sum of their parts.

That's why I think it is hard to say what each element would give you individually.

Having said that, it is generally accepted that the muffler will act as a tuning instrument more than anything, on the 360 at least, even though it does help free flow exhaust out of the engine due to less baffling.

And that the cats and headers do more in terms of playing with the harmonics in the gas flow of the engine...thereby affecting torque characteristics as well as enabling more exhaust out and air/fuel mix in therefore (power characteristics).

Only my view, but I would say headers then cats is more of a performance upgrade than muffler so would expect at least similar power gains from these two (header + cats) in comparison to just muffler...but more importantly would expect the torque characteristics to change more with the muffler/cats option than just the muffler.

[RICH S.]

Word of warning on Supersprint stuff!!

It is absolutely awfull in the way its made,ive had S/S stuff loads of it on my CSL and over the years have had it replaced or mended.

The trouble is the bits like brackets and hangers are tacked on using " Spaghetti " they use normal steel for these parts which somehow reacts with the tubing which is made of stainless steel.

S/S actually tubing is good with good welds but as i say brackets and hangers etc. are appaling with welds looking like a lump of " Pigeons sh*t" . These welds often break in the first year,the times ive spent in exhaust centres is unbelievable.

With loads of S/S experience and im not the only one to moan about S/S stuff I personally would not put it on any Ferrari,much better stuff out there for Ferraris ( unless of course you like exhaust centres )

Rich.

[diablo]

What fuel were they running?