Mythbuster: continuing project thread of my 1303 '75

[70Turbobug]

Thanks guys - it´s good to be here! I was registered here before but I had forgotten my password and my nick aswell ....getting old I guess.
It´s good to see that the GT3076 fits in that location.I have a GT3071R which is imho a little smaller in diameter at the compressor housing.Just waiting now for my parts to get back from balancing,then I can finally put the engine together.

[Wally]

New turbo has been started and run for the first time! Whoaha! I like this turbo already
This was just on the internal wastegate without WI and without any additional tuning, but already is clear that this 50% more flowing turbo only gave a 100 rpm later spool to make 1 bar boost
Proof:



It also holds its boost better and the internal wastegate doesn't creep (yet) as is shown by the steady boost line.
BTW: 200 MAP is 1 bar boost above ambient (=100). The wastegate boost goes on to about 1,15 bar boost (~17 psi).

[kuleinc]

That is awesome, good job picking a better turbo out for minimal increase in lag!