Dale bravo t jet
New member
- Joined
- Jan 10, 2018
- Messages
- 25
- Points
- 8
Hi I'm new to turbos and I want to fit a bov but videos online are rubbish does anyone have a guide I can follow or a how to video thanks Dale
General Anybody have a Dump valve how to guide
- Thread starter Dale bravo t jet
- Start date
Currently reading:
General Anybody have a Dump valve how to guide
Don't do it.
The t-jet uses a recirculating valve instead of a mechanical bov.
In simple terms it gives the ECU more ability to protect the engine in case other components go wrong, by allowing it to release boost, if it detects problems.
An electronic bov is better in other circumstances as well:
The ecu sometimes chooses not to open it if the difference in boost is small enough.. so you get a little less boost lag.
If you just want to do it for the noise, you will get some with a bov.. but not to much .. because there isn't really that much boost, not much air volume, and the turbo is pretty small as well.
You can also get the sound with 0 (ZERO) investment, I should maybe do a video on that at some point.
The t-jet uses a recirculating valve instead of a mechanical bov.
In simple terms it gives the ECU more ability to protect the engine in case other components go wrong, by allowing it to release boost, if it detects problems.
An electronic bov is better in other circumstances as well:
The ecu sometimes chooses not to open it if the difference in boost is small enough.. so you get a little less boost lag.
If you just want to do it for the noise, you will get some with a bov.. but not to much .. because there isn't really that much boost, not much air volume, and the turbo is pretty small as well.
You can also get the sound with 0 (ZERO) investment, I should maybe do a video on that at some point.
- Joined
- Jan 14, 2016
- Messages
- 232
- Points
- 46
I actually have created the psshhhht sound as a byproduct of a mod I did to my Doblo T-Jet: installing a modified Bravo intake pipe with a K&N pod filter on it.
When I do a medium to full throttle acceleration (which also makes you hear the turbo spool up) and let off the throttle at around 4k rpm, the factory recirculation valve blowing off is very audible through the K&N filter.
Since you have a Bravo, all you need to do is remove the factory airbox and just keep the 1 piece of pipe that is connected to the turbo and also has the lines from the recirc valve, PCV, evap and boostregulator connected to it.
On the end where the rest of the factory intake system was, you fit a good quality pod filter.
I used a K&N rg-1001rd, which is a direct fit on the stock pipe, but you should check for clearance in the Bravo engine bay. Also don't forget to provide some support, preferably mounted to the engine so everything moves as 1.
Here's how it looks under the bonnet of my Doblo. You can see the pipe I mean, but yours will have a ribbed semi-flexible bit in it I had to cut out to make it fit my Doblo. If you look very closely you can see a bit of black metal supporting the pipe mounted to the engine mount.
https://www.fiatforum.com/members-motors/437147-candisas-doblo-t-jet-lpg.html?p=4248384
Alternatively, and for almost zero money, you can just remove the bit of hose between the recirc valve and the pipe integrated into the engine cover, put a stop on the pipe in the engine cover (so the engine doesn't suck in warm and dirty air that way) and hoseclamp a bit of mesh (to prevent dirt falling it but allowing air out) to the recirc valve.
This way you also hear the pssshht, but no turbo-spool and no other advantages of a pod filter.
When I do a medium to full throttle acceleration (which also makes you hear the turbo spool up) and let off the throttle at around 4k rpm, the factory recirculation valve blowing off is very audible through the K&N filter.
Since you have a Bravo, all you need to do is remove the factory airbox and just keep the 1 piece of pipe that is connected to the turbo and also has the lines from the recirc valve, PCV, evap and boostregulator connected to it.
On the end where the rest of the factory intake system was, you fit a good quality pod filter.
I used a K&N rg-1001rd, which is a direct fit on the stock pipe, but you should check for clearance in the Bravo engine bay. Also don't forget to provide some support, preferably mounted to the engine so everything moves as 1.
Here's how it looks under the bonnet of my Doblo. You can see the pipe I mean, but yours will have a ribbed semi-flexible bit in it I had to cut out to make it fit my Doblo. If you look very closely you can see a bit of black metal supporting the pipe mounted to the engine mount.
https://www.fiatforum.com/members-motors/437147-candisas-doblo-t-jet-lpg.html?p=4248384
Alternatively, and for almost zero money, you can just remove the bit of hose between the recirc valve and the pipe integrated into the engine cover, put a stop on the pipe in the engine cover (so the engine doesn't suck in warm and dirty air that way) and hoseclamp a bit of mesh (to prevent dirt falling it but allowing air out) to the recirc valve.
This way you also hear the pssshht, but no turbo-spool and no other advantages of a pod filter.
Nope! don't do that.
To much work, to difficult to expensive, and a pod filter is nowhere near as good big as the stock air filter.
The mod i have is the best. and it's FREE.
.. and best of all It can be put back to stock in 2 minutes.
To much work, to difficult to expensive, and a pod filter is nowhere near as good big as the stock air filter.
The mod i have is the best. and it's FREE.
.. and best of all It can be put back to stock in 2 minutes.
- Joined
- Jan 14, 2016
- Messages
- 232
- Points
- 46
That's what I described in the last paragraph of my previous post.
On the Doblo a pod filter makes sense as it takes a lot of bends, length and possibility to absorb heat out of the system.
I don't think it hurts anything and you get the sound and cleanability anyways, but it won't help performance on a Bravo because it already has a pretty good intake setup from the factory.
On the Doblo a pod filter makes sense as it takes a lot of bends, length and possibility to absorb heat out of the system.
I don't think it hurts anything and you get the sound and cleanability anyways, but it won't help performance on a Bravo because it already has a pretty good intake setup from the factory.
I didn't get that .. sorry.
You could also remove that pipe from the recirculating valve to the intake... if you want the noise .. or if you just want to get rid of the extra pipe.
Put a small filter on the recirculating valve(as in the video) or don't.. it doesn't matter; Then and use a Coke/Fanta PET bottle cap in the small hose on the turbo intake.
OP
OP
Dale bravo t jet
New member
- Joined
- Jan 10, 2018
- Messages
- 25
- Points
- 8
Thanks a lot I won't bother doing it I'll get the k&n filter
dtimmins1985
Established member
Silly question... can you do this on a diesel?
Lad at work has a gt tdi and it makes a blow off noise... he said he disconnected a pipe from the turbo and blocked it off on the engine side...
Is this the same mod?
I understand that the multijet (jtd 16v) uses a diverter valve, is this the same as a recirc valve?
Lad at work has a gt tdi and it makes a blow off noise... he said he disconnected a pipe from the turbo and blocked it off on the engine side...
Is this the same mod?
I understand that the multijet (jtd 16v) uses a diverter valve, is this the same as a recirc valve?
- Joined
- Jan 14, 2016
- Messages
- 232
- Points
- 46
Diverter/recirc is the same thing.
I don't see why a diesel would have any kind of dumpvalve except as a safety mechanism, since diesels usually don't have a throttle valve but adjust the richness of the mixture to control power.
I don't see why a diesel would have any kind of dumpvalve except as a safety mechanism, since diesels usually don't have a throttle valve but adjust the richness of the mixture to control power.
