Author Topic: stock pump, how much boost with blocked wastegate? (Read 1900 times)

flapjack · « **on:** April 16, 2008, 08:35:27 am »

1.6TD with a T3, 2.5" downpipe and stock 2" exhaust
With the wastegate blocked, should I be able to get more than 10psi with a completely stock pump?
Not sure if I should look for leaks/problems before I start to add fuel.

jimfoo · « **Reply #1 on:** April 16, 2008, 09:38:21 am »

Any turbo should be able to make more than 10 PSI with a blocked waste gate, unless it's really big.

g-spec · « **Reply #2 on:** April 16, 2008, 02:07:53 pm »

Im running a T3 on a 1.9TD with stock fueling and blocked wastegate and a modded boost pin....on a cool day I see about 20psi.....usually about 18psi.
My car still smokes like steam engine until it hits full boost, then its just a gray haze!!!!

RabbitJockey · « **Reply #3 on:** April 16, 2008, 03:31:31 pm »

with my jetta on stock fueling i could only do 15psi, fueling is everything

oldskool rich · « **Reply #4 on:** April 16, 2008, 04:05:09 pm »

its all down to fuel, ive done all the fuel mods and i shoot past 40psi

start with ur fuel screw, if still not enough get a bigger pump piston off a tdi