Technical Punto Cabrio 1.2 16V on the dyno

[cauchemarre]

Hello everyone,

So I just came back from the dyno, and the results were astonishing, but not in a positive way lol.

For context, the flexible (exhaust part) is really damaged, like there is a big hole. I think it’s because of rust. Also, my intake hose is also broken so it doesn’t help.

Since I bought all the parts of the exhaust (down pipe, cat, muffler) I wanted to see the difference before/after the installation. After the cat, everything is stainless steel.

So I’ll put the video and the results in picture here for suspense…
The run was made in 3rd gear.

I mean… 57hp!!! It’s like the 1.1L, I was not expecting such a high loss.

I wanted to cry (I didn’t) but how insane it is.
And the volume of the car… AT LEAST 130dB…

So next thing is, I’ll install every exhaust parts next week.
I’ve ordered a K&N cone filter with hose that may arrive August 7th.

I’ll do another run, hope getting back the 30hp and even more

 

[bugsymike]

Hello everyone,

So I just came back from the dyno, and the results were astonishing, but not in a positive way lol.

For context, the flexible (exhaust part) is really damaged, like there is a big hole. I think it’s because of rust. Also, my intake hose is also broken so it doesn’t help.

Since I bought all the parts of the exhaust (down pipe, cat, muffler) I wanted to see the difference before/after the installation. After the cat, everything is stainless steel.

So I’ll put the video and the results in picture here for suspense…
The run was made in 3ed gear.

View attachment 470446
View attachment 470443
View attachment 470442
View attachment 470444

I mean… 57hp!!! It’s like the 1.1L, I was not expecting such a high loss.

I wanted to cry (I didn’t) but how insane it is.
And the volume of the car… AT LEAST 130dB…

So next thing is, I’ll install every exhaust parts next week.
I’ve ordered a K&N cone filter with hose that may arrive August 7th.

I’ll do another run, hope getting back the 30hp and even more

I believe a standard classic mini in the old days was something like 18bhp at the wheels.
I once spent shed loads on a motorbike performance upgrade (roughly six time what I paid for the bike) and the result on the rolling road was roughly half what had been claimed by the builder, although it did manage to rip the cush drive out of the back wheel.

 

[cauchemarre]

I believe a standard classic mini in the old days was something like 18bhp at the wheels.
I once spent shed loads on a motorbike performance upgrade (roughly six time what I paid for the bike) and the result on the rolling road was roughly half what had been claimed by the builder, although it did manage to rip the cush drive out of the back wheel.

Yes it’s heart breaking.
Hope I can really get at least the 30hp back…

 

[PuntoHowTo]

This looks like a familiar problem.

 

[cauchemarre]

This looks like a familiar problem.

Did you manage to solve it?

 

[PuntoHowTo]

Did you manage to solve it?

If you watch the other videos on my channel, shortly after that you’ll see I stripped the engine to replace seals-recut valve seats and set the timing properly, however since then it’s been off the road so I’ve been unable to re-teat it

 

[cauchemarre]

Hello all,

So I’ve changed the exhaust system. We can clearly see where it was messing (video is in French)

I’m waiting for the K&N intake to give you a full feedback, but now the car is pretty well.

 

[bugsymike]

Hello all,

So I’ve changed the exhaust system. We can clearly see where it was messing (video is in French)

View attachment 470854

I’m waiting for the K&N intake to give you a full feedback, but now the car is pretty well.


View attachment 470855

That exhaust will please your neighbours.