C250TD boost controller
- Thread starter james l
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- boost c250td controller
Doodle
MB Enthusiast
The C250 already has an air intake that pulls cool air from just behind the grille.
For some reason, my befuddled brain seems to recall that a BOV has little benefit on turbodiesels.
Tuning a TD requires a slightly different approach to tuning a turbo petrol engine.
For some reason, my befuddled brain seems to recall that a BOV has little benefit on turbodiesels.
Tuning a TD requires a slightly different approach to tuning a turbo petrol engine.
GrahamC230K
MB Enthusiast
- Joined
- Jul 14, 2002
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- 9,755
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- Audi A3 & S4 quattro
Jimmy has tried various - I think he was happiest with the Superchips remap.
KLP 92
MB Enthusiast
I've used superchips on Jimmy's recommendation on my C250 TD. I am extremely happy with the results, economy hasn't suffered as long as i don't keep using the extra power!
I would definately recommend it! The car as standard feels sluggish when its in W mode and picks up in 2nd. Since the chip i've not needed to kick down to 1st gear! Also on the motorway the torque is significantly increased. you don't need to change gears after 60 mph!
I've noticed an 4mpg increase on motorway driving as well! Drove a standard 250 yesterday, there's alot of difference!
I would definately recommend it! The car as standard feels sluggish when its in W mode and picks up in 2nd. Since the chip i've not needed to kick down to 1st gear! Also on the motorway the torque is significantly increased. you don't need to change gears after 60 mph!
I've noticed an 4mpg increase on motorway driving as well! Drove a standard 250 yesterday, there's alot of difference!
What I had in mind is to have the turbo ported and polished. Then get it wrapped, put a custom decat pipe and 2.5" system. Have the inlet manifold and intercooler pipes cleaned. Then take it for a remap.
Has anyone managed to get over 200bhp at the flywheel from the small turbo. Will the bigger T3 fit
Has anyone managed to get over 200bhp at the flywheel from the small turbo. Will the bigger T3 fit
jgevers
Active Member
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- Dec 2, 2004
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- ML270CDi again, Golf TDi, Legacy Turbo 280PS, RS6 Avant
Hi,
Tuning a diesel engine is quite different from a petrol engine. A blow off valve will not work because there is no throttle valve or inlet vacuum on the overun.
The main problem you will encounter will be getting enough diesel in combustion chamber that can burn effectively.
The diesel pump is of a VP37 type that is not particularly highpressure compared to common rail.
The turbo will not be the first problem. You will need to change the injector nozzles first to get more fuel in. The ECU is quite capable of regulating boost which is already done by solenoid. If you run too much boost by means of a bleed valve or other boost controller, the ECU will go into limp home.
Anyway, why? There are quite good common rail MBs out there that will produce well over 200 hp with a simple rail pressure modification.
Cheers
Tuning a diesel engine is quite different from a petrol engine. A blow off valve will not work because there is no throttle valve or inlet vacuum on the overun.
The main problem you will encounter will be getting enough diesel in combustion chamber that can burn effectively.
The diesel pump is of a VP37 type that is not particularly highpressure compared to common rail.
The turbo will not be the first problem. You will need to change the injector nozzles first to get more fuel in. The ECU is quite capable of regulating boost which is already done by solenoid. If you run too much boost by means of a bleed valve or other boost controller, the ECU will go into limp home.
Anyway, why? There are quite good common rail MBs out there that will produce well over 200 hp with a simple rail pressure modification.
Cheers
oldskoolmercs
Active Member
- Joined
- Apr 7, 2010
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- 73
- Car
- C250TD
How much extra gain in hp is there from sports flow exhaust!
