On the pd 130/150 is not a good ideea to remove the cat as the cat provide the back pressure needed for the turbo to controll surges. The GT1749v is very efficient at low revs and at high revs the ecu has trouble controlling the overspool and the turbo boost "creeps". Surging is very bad for the engine and turbo as it can bend rods and snap the shaft when you step on it at low revs due to the boost spikes ! I would take the cats off if you have a larger turbo but i would leave-it in place on a stock /remapped pd 130 as its not much of a restriction anyway unless fully clogged !
BV43 from 2,0TDI 170hp is the perfect choise for a bigger turbo ;i have one on my motor.change the turbo to a bigger one!
BV43 from 2,0TDI 170hp is the perfect choise for a bigger turbo ;i have one on my motor.
BV43 from 2,0TDI 170hp is the perfect choise for a bigger turbo ;i have one on my motor.
@QuattroA4 what power do you have with your mods?
I`m sure it is ;some pics BV43 vs VNT17 and fittedsorry to drag up an old thread, but that surly isn't just a bolt on replacement is it?
I'm running about 170 at the flywheel, would like more but dont want to knacker my clutch. What sort of power you getting from your with the bigger turbo fitted?
I have replaced at least a dozen pd 130 turbochargers and all had snapped shafts. Exhaust velocity due to the ditched cat increases and the turbo speed's up before the N75 has a chance to regulate the boost or cut the fuel. Pd 130 turbo (GT1749 VA) has a very weak shaft. The later pd 2.o Tdi bv43 or Garrett gt1749VC turbochargers have boost position sensor (the plug on the actuator) so the ECU can accurately regulate the boost + it has bigger hot and cold wheels so the turbo is a bit more laggy at low revs...Back pressure is a myth!
It isnt back pressure you require for an engine, any engine works best with minimal back pressure. Its the exhaust velocity due to the scavenging effect that you change when fitting a different exhaust or decat, the turbo wont reqire any back pressure the actuator and soleniod will control the boost and any surges.
Just fitting the turbo you don`t gain almost nothing,just a bit more power to the top end;you need a custom remap to match the turbo.And what sort of gains did you get from fitting this turbo straight off? I guess i would need my remap doing again to match?
Also i Support the FMIC is advisable
I`m sure it is ;some pics BV43 vs VNT17 and fitted
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