JBS Sales
05-04-2007, 17:02
We are currently developing a new turbo application for the 1.8T, there are two stages available which with our hybrid turbo versions will be able to offer up to 550bhp, with full boost predicted between 3000-3500RPM depending on spec.
Key features include:
Twin Scroll Design for better response and spool
New More efficient and larger compressor preventing compressor surge
Better pump gas efficiency
Turbine Nozzle Area (cm2) = Large 10.5 hotside, single flapper.
Improved actuator design
A "twin scroll" or "divided inlet" means that there are two separate volutes within the turbine housing. The main reason for doing this is to isolate the pulses coming from each exhaust port and maintain more of the pulse energy from each cylinder all the way down to the turbine wheel. There are no differences between the turbine wheels used in open or single inlet turbines compared to those used in twin or divided inlet turbines.
Generally speaking, a divided inlet turbine setup will respond faster and produce boost quicker than single or open design of the same nozzle area, of course this is dependent upon proper execution.
While it does not cause any problems or harm to run a divided inlet turbine housing on a manifold that is an "open" design, none of the benefits of the twin inlet will be seen.
With this new turbo set up we will be using our ST316SS SC40 equal length twin scroll manifold for optimum performance.
Here is our twin scroll based equal length manifold.
http://i103.photobucket.com/albums/m136/JBS_Auto_Designs/TwinScrollMan1.jpg
http://i103.photobucket.com/albums/m136/JBS_Auto_Designs/TwinScrollMani.jpg
Again with a twin scroll based turbo.
http://i103.photobucket.com/albums/m136/JBS_Auto_Designs/TwinScrollMani2.jpg
We have an Audi TT 1.8T 225 booked in for this turbo conversion at the beginning of next week. We will be posting pictures as the kit is being built and of the final product with a full review and RR data.
Then after the Audi TT we have an Ibiza 1.8T booked in for the same conversion again I will post build and final product pictures and RR information.
This turbo set up will also be offered in kit form with fitting instructions and step by step photos for all the 1.8T range.
If you would like anymore information please feel free to give me a call on 01246 455005
Regards
Mike
Key features include:
Twin Scroll Design for better response and spool
New More efficient and larger compressor preventing compressor surge
Better pump gas efficiency
Turbine Nozzle Area (cm2) = Large 10.5 hotside, single flapper.
Improved actuator design
A "twin scroll" or "divided inlet" means that there are two separate volutes within the turbine housing. The main reason for doing this is to isolate the pulses coming from each exhaust port and maintain more of the pulse energy from each cylinder all the way down to the turbine wheel. There are no differences between the turbine wheels used in open or single inlet turbines compared to those used in twin or divided inlet turbines.
Generally speaking, a divided inlet turbine setup will respond faster and produce boost quicker than single or open design of the same nozzle area, of course this is dependent upon proper execution.
While it does not cause any problems or harm to run a divided inlet turbine housing on a manifold that is an "open" design, none of the benefits of the twin inlet will be seen.
With this new turbo set up we will be using our ST316SS SC40 equal length twin scroll manifold for optimum performance.
Here is our twin scroll based equal length manifold.
http://i103.photobucket.com/albums/m136/JBS_Auto_Designs/TwinScrollMan1.jpg
http://i103.photobucket.com/albums/m136/JBS_Auto_Designs/TwinScrollMani.jpg
Again with a twin scroll based turbo.
http://i103.photobucket.com/albums/m136/JBS_Auto_Designs/TwinScrollMani2.jpg
We have an Audi TT 1.8T 225 booked in for this turbo conversion at the beginning of next week. We will be posting pictures as the kit is being built and of the final product with a full review and RR data.
Then after the Audi TT we have an Ibiza 1.8T booked in for the same conversion again I will post build and final product pictures and RR information.
This turbo set up will also be offered in kit form with fitting instructions and step by step photos for all the 1.8T range.
If you would like anymore information please feel free to give me a call on 01246 455005
Regards
Mike