335s also have twin turbos = more overhead to tune with!
Dan a remap on a 320d will net you about 175-185 depending on the tuner. If you want to then go further you will need to run a hybrid turbo. £850
Although doing that causes more problems.. Firstly is clutch - very unlikely to be able to take the torque of a hybrid turbo. You will need to upgrade to a paddle clutch and appropriate flywheel which can be £1000. I'm not sure what the injectors are like on a 320d but if they are nearly at max duty cycle after a remap, those will need upgrading as well in order to see higher gains. You can't just whack a hybrid turbo onto a car and run it at 28psi. If there's not enough fuel to pass through it can cause a lot of damage. A set of higher performance but second hand injectors (usually from other models but which fit your application) are around £300.
Again I'm not sure whether the 320d has a FMIC or a SMIC (and if you don't know what these are then don't bother tuning anything) but if it only has a SMIC, you'll need to upgrade to an FMIC, of which a cheapy-ebay one can be had for about £200. You'll then need to uprate the boost pipes to aftermarket silicone ones with decent fixtures and fittings. £150.
I'm not sure what the internals on the 320d can take, on my Golf which comes out the factory with 105, you can happy run 220bhp all day without any internal work. Once you go past 250 you'll need uprated cams and pistons so research into this would be necessary.
After all of the above you will need a custom remap, a decent tuner will keep the car for a few days and fine tune every single throttle opening and loading options within the ECU and these cost about £400.
So basically you're looking £3000 to hybridise a diesel including the labour. You can't just put a whacking great big turbo on and run it at, or near to, standard pressure either. doesn't work like that unfortuantely. anyway best of luck merry christmas.
Dan a remap on a 320d will net you about 175-185 depending on the tuner. If you want to then go further you will need to run a hybrid turbo. £850
Although doing that causes more problems.. Firstly is clutch - very unlikely to be able to take the torque of a hybrid turbo. You will need to upgrade to a paddle clutch and appropriate flywheel which can be £1000. I'm not sure what the injectors are like on a 320d but if they are nearly at max duty cycle after a remap, those will need upgrading as well in order to see higher gains. You can't just whack a hybrid turbo onto a car and run it at 28psi. If there's not enough fuel to pass through it can cause a lot of damage. A set of higher performance but second hand injectors (usually from other models but which fit your application) are around £300.
Again I'm not sure whether the 320d has a FMIC or a SMIC (and if you don't know what these are then don't bother tuning anything) but if it only has a SMIC, you'll need to upgrade to an FMIC, of which a cheapy-ebay one can be had for about £200. You'll then need to uprate the boost pipes to aftermarket silicone ones with decent fixtures and fittings. £150.
I'm not sure what the internals on the 320d can take, on my Golf which comes out the factory with 105, you can happy run 220bhp all day without any internal work. Once you go past 250 you'll need uprated cams and pistons so research into this would be necessary.
After all of the above you will need a custom remap, a decent tuner will keep the car for a few days and fine tune every single throttle opening and loading options within the ECU and these cost about £400.
So basically you're looking £3000 to hybridise a diesel including the labour. You can't just put a whacking great big turbo on and run it at, or near to, standard pressure either. doesn't work like that unfortuantely. anyway best of luck merry christmas.
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