Doing nozzles, EVRY and a mufflerectomy is certainly one low-budget route, but not by any means necessarily the "best"...that's an individual decision. One could point out that EVRY simply increases fueling, without increasing boost, so nozzles and an EVRY will give you more speed and more smoke, probably negatively affecting fuel economy a bit in the process.turkeyssr said:For a 2003 ALH, why not simply do the EVRY MOD, then mufflerectomy, and then KERMA TDI 520s? It seems this would be the least expensive progressive route to go.
Common fallacy. The engine will only inject the quantity of fuel that you need to maintain your current requested power...it's not like a gasser where you'll always get (more or less) a 14.7:1 air:fuel ratio, ergo more performance equals less fuel economy. On a TDI (and diesels in general), if you're only using 17hp, you'll only get the fuel to produce 17hp, no matter the nozzle size or ECU programming.What about fuel economy? It seems that no one has mentioned any loss in fuel economy with power mods, but I would think more fuel injected = worse fuel economy.
Its a good idea, Yes.iceguy said:Just wondering I heard from somebody that you should let the turbo charger cool off by letting the car idle for 5 min or so after a long trip??? I have a '09 TDI Jetta. Any truth to this