Hi, as above. Was thinking of doing this on my bravo tjet 150bhp.
R
Anyone has any experience? Would appreciate all discussions, pros/cons etc.

Cheers!

Why don't you just remap it vill give more hp. ?

Not worth it, the standard one can take 250+ hp, so .. don't bother.
+increasing the valve body will make it less responsive at low load... any small movement will flow a lot more air than standard ... so will make idle unstable.

Thanks for the reply! I'm running about 170whp at the moment. Stock turbo, aftermarket waste gate, meth injection Boost holds to 1.2-1.3bar at redline.

Thing is, I drove a ftiend's car recently. That thing pulls like a monster from standstill. He doesn't have any mods. Stock turbo, no meth, stock waste gate etc.

I've tried everything from advancing timing aggressively, to even disabling the waste gate. I don't results remotely close. To make things worse, we just stripped his car, as it was due for deregistration. No turbo, no charge pipe, no intercooler etc.. no change in his cars behaviour.

I am baffled.

The only things i can think of:
-Max boost pressure in 1st,2nd,3rd gears is limited.
basically in 1st gear there is almost no boost, in second gear it goes to about 0.35 bar, in 3rd to about 0.7 bar .. and only in 4th it can get to max boost.
So torque is limited by gear to protect the engine/clutch/gearbox/driveshafts

-camshafts, there are basically 2 sets of cams in the Bravo, the ones in the 120hp Bravo, and then the ones in the 150hp Bravo (same in the nonturbo 1.4 16v 90hp Bravo) these are taller and longer duration.


What i do know:
-my 120t-jet now has 194ps ~190hp(vl36 turbo + catless downpipe + tune/dyno);
-drove a fiend's 150hp Bravo (stock) and the only phisical difference now is the cams.. -his got into boost 300-500 rpm faster
-felt like it had more torque down low.. in gears 1-2 (and maybe 3)
-with the SPORT button pressed his does have bigger overboost about 0.25 bar more on each of the 1-2-3 gears.
- in 4th mine has more torque ~265Nm vs 230Nm on his with Sport button.

So in short the difference between these 2 examples are: the cams and more importantly the tune (allows more overboost).

Thanks aurick for your very well worded reply.I have seen his map. Most limiters are already set to FF.And can't be certain about whether he changed his cams... but we are both comparing 150models and his car does pull like a bull, even with turbo disconnected.

Are cams a easy modification to make? You reckon you'll gain a lot more torque with which cams? 120 or v16 90hp?

What's your car dyno results now? Can share?

Here is the dyno graph:
https://postimg.org/image/ip6hbt4bp/
Ambient temperature was about 24 degrees C.

Does your car still have the cat?
Does it have a bigger intercooler (does your friend's?)?
Did you make a few MES graphs to compare between yours and you friends?
What are the manifold temperatures?

Replacing the cams, i'm actually not sure how difficult it would be... obviously would involve redoing the timing. and of course a new tune....

TBH the thought of spending money again on cams and a tune... not worth it for me .. now.

Wow 194ps at the wheels? What mods you running? Sadly my 171whp was clocked at 34°C.. it's hot here in Asia... ?

I think the dyno is setup to take into account the drive-line losses.... so i look at it as 194ps (191hp) at the flywheel.

its a stock 120 hp Bravo + vl36 turbo(from 150hpBravo) + Ragazzon catless downpipe.

Those are all the important physical mods ..there are some others like a catch can, and i wrapped the hard pipe from the intercooler to intake in some reflective tape (to prevent heat soak from the near-by exhaust.

I was also running 10w50 Total Racing synthetic oil, you should run something thicker as well if you are in a hot environment because the 3 liters of 5w40 oil does tend to thin out a lot under these conditions.

I went back to 5w40 for the winter ... we have horrible winters and 2-3 weeks of -20 degrees C is common.

Wow, that's really good for a base 120bhp.

I did a chassis dynoed at 171whp. Decat, aftermarket waste gate, meth injection.

Would love to have a look at your tune.. but unfortunately you got it done at a shop so you wouldn't have the file.

I was considering a td04 setup, but I drove a 150 with a hybrid turbo. Wasn't too nice a drive, the lag is horrendous. Boost only comes at 3000-3300rpm.. not a good setup for city driving.

I'm guessing the td04 would be worse..

i suppose the Fiat Bravo you have in Malaysia is not common??

I'm in Singapore and is also looking to do more to my Bravo in the next few months before I go for a driving holiday in Malaysia,January 2018.

like to find out what's the end result you are getting from the intake mod.

slickkon said:

Wow, that's really good for a base 120bhp.

I did a chassis dynoed at 171whp. Decat, aftermarket waste gate, meth injection.

Would love to have a look at your tune.. but unfortunately you got it done at a shop so you wouldn't have the file.

I was considering a td04 setup, but I drove a 150 with a hybrid turbo. Wasn't too nice a drive, the lag is horrendous. Boost only comes at 3000-3300rpm.. not a good setup for city driving.

I'm guessing the td04 would be worse..

Click to expand...

This weekend i took the car for a ride on some mountain passes. The weather was pretty bad..12-14 degrees C, and raining/cloudy.
The car had significantly more power, wheel spin in 3rd, wheel spin in corners...etc (some was because of wet road,, but not all )

I would say, high temps are your enemy.
Get a bigger intercooler and also make/install a intercooler water(or water+alcohol) sprayer system (would be nice it it was IAT controlled).

Hi Aurick, what intercooler you using? I think I'm pulling the trigger on the td04 next month ..

I am still using the stock intercooler... and since winter is coming, i don't need a bigger one till late spring.

But i was thinking of taking the bumper off and doing some measurements.
If any i will be buying a generic universal intercooler something like this: intercooler

that particular one might need some silicone reductions to make it work.. but i hope something along those dimensions will work...again i have not measured the space.. i am going on what others have told me.