De cats on 2.5TDI 5 Cylinder

[K7ERG]

Would i gain anything by removing the 2 cats on my car???

The system splits from the downpipe into 2 - the first part has a short pipe and goes into CAT 1 then joins after that into a single pipe. The second part goes the long route under the engine then into CAT 2 and joins into the single pipe before the middle box.
I am planning on scrapping the CATs and the 2 pipes and make one straight from the downpipe to the middle box. This will also make the exhaust the same diameter from the downpipe to the middle box instead of the reduced size it uses now.

Thanks in advance

Craig

[maRS2]

On A diesel no gain you will just reduce EGT.
Then you can inject more fuel with same egt as before removal, with some new injector nozle like the one from Kerma TDI.

[topsparky]

Would i gain anything by removing the 2 cats on my car???

The system splits from the downpipe into 2 - the first part has a short pipe and goes into CAT 1 then joins after that into a single pipe. The second part goes the long route under the engine then into CAT 2 and joins into the single pipe before the middle box.
I am planning on scrapping the CATs and the 2 pipes and make one straight from the downpipe to the middle box. This will also make the exhaust the same diameter from the downpipe to the middle box instead of the reduced size it uses now.

Thanks in advance

Craig

if you want more power get the injector nozzles from a 150bhp caravelle
fit them and then get it remapped
there are guys on the t4forum that have got 183bhp from a 2.5 tdi engine
originally 88 bhp

[maRS2]

Some did even get 300 hp from a transporter 102 hp 2.5 tdi I5

[topsparky]

Some did even get 300 hp from a transporter 102 hp 2.5 tdi I5

thats some delivery van then
i had 121bhp out of my 88bhp t4 and thought that was quick (for a van)

[maRS2]

here it is:
http://forums.tdiclub.com/showthread.php?t=166311

[K7ERG]

Interesting reading. The engine is 160bhp 250lb/ft at the moment but i think the pump timing is out slightly. ( A pain in the *** to start in the morning) and not producing that much power over stock. It is a high miler. I dont know what the remap power output should be.

So bigger turbo and injectors is the way forward. What can the stock engine take power wise?

Craig