Rover k series Turbo
Discussion
Hi guys just an engine enthusiast from the uk wanting to start a cool little project with a few friends , I want to turbo charge a rover K series engine with a hopeful bhp of 400-500 bhp and still being road legal and able to pass an MOT
Now my question is on the route of lowering compression rover actually did do a turbo charged rover K series engine by shortening the conrod and using the VVC pistons
So naturally aspirated the engine has a bore size of 80 mm and a stroke of 89.3 mm with a rod size of 133.1mm now to turbo charge the k series rover dropped the conrod to 131.1mm my question is in terms of compression ratio should I keep the rod at 133.1 and dish the piston or go with a standard forged piston and drop the rod size to 131.1 with no dishing of piston (both conrods will be forged whichever Avenue people reccomend) I also have with the help of Dave Andrew’s from DVA power a gasket shim to lower compression and dave will also be removing some material from the combustion chamber to lower CR any advice would be greatly appreciated as it will help plan out the build
Now my question is on the route of lowering compression rover actually did do a turbo charged rover K series engine by shortening the conrod and using the VVC pistons
So naturally aspirated the engine has a bore size of 80 mm and a stroke of 89.3 mm with a rod size of 133.1mm now to turbo charge the k series rover dropped the conrod to 131.1mm my question is in terms of compression ratio should I keep the rod at 133.1 and dish the piston or go with a standard forged piston and drop the rod size to 131.1 with no dishing of piston (both conrods will be forged whichever Avenue people reccomend) I also have with the help of Dave Andrew’s from DVA power a gasket shim to lower compression and dave will also be removing some material from the combustion chamber to lower CR any advice would be greatly appreciated as it will help plan out the build
There isn’t much scope for making a deeper dish on the stock piston geometry as the pin is very close to the crown which leaves the crown of the piston quite thin. There is very little space between the top of the rod and the underside if the crown either. A shorter rod would be the best way to go.
Dave
Dave
Whether it can pass an MOT, depends on the age of the vehicle/engine and specifically what level it has to pass at.
As to whether you need to lower the CR much, depends on what fuel you intend to run.
DV is on here, and is probably more qualified than anyone on the specifics of the K series though.
But if you need to pass an actual legit MOT test with cat in place etc...that may make it a little harder. But as you'd just be using fairly mild cams etc, shouldn't be that hard.
As to whether you need to lower the CR much, depends on what fuel you intend to run.
DV is on here, and is probably more qualified than anyone on the specifics of the K series though.
But if you need to pass an actual legit MOT test with cat in place etc...that may make it a little harder. But as you'd just be using fairly mild cams etc, shouldn't be that hard.
OP, you may find this thread interesting:
https://www.pistonheads.com/gassing/topic.asp?h=0&...
The trials and tribulations of trying to turbocharge. K series.
https://www.pistonheads.com/gassing/topic.asp?h=0&...
The trials and tribulations of trying to turbocharge. K series.
Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff