Stolen thoughts from Simon Norris on T04Z
Stolen thoughts from Simon Norris on T04Z
Just ran into this and thought I'd cut and paste it over here...


Another thread here about this turbo:
http://www.lancerregister.com/showthread.php?t=199860
Just a quick spec for anyone who is interested in it; It is a long rod 2.0 (156mm rod) with an all new ND T04Z turbokit, same as usual ND spec head etc.....
It made 625Hp and 515LbFt (2.3Bar Boost) with FULL boost by 4000Rpm and rev limit at 8500Rpm, but the best thing is it suffers from ZERO surge unlike the GT35R, due to this fact it actually makes full boost earlier than the GT35R. Its a test spec I wanted to try to improve high rpm power and reduce/eliminate surge, operation complete!
We are now selling these kits to the public and have already sold some!
With a JUN inlet manifold this spec made 650Hp and 530LbFt (Super Unleaded) with SAFE ignition timing, I expect it to make more on a stroker and approx 100Hp and 100LbFt more on VP Import.
Cheers all
Si
It made 625Hp and 515LbFt (2.3Bar Boost) with FULL boost by 4000Rpm and rev limit at 8500Rpm, but the best thing is it suffers from ZERO surge unlike the GT35R, due to this fact it actually makes full boost earlier than the GT35R. Its a test spec I wanted to try to improve high rpm power and reduce/eliminate surge, operation complete!

We are now selling these kits to the public and have already sold some!
With a JUN inlet manifold this spec made 650Hp and 530LbFt (Super Unleaded) with SAFE ignition timing, I expect it to make more on a stroker and approx 100Hp and 100LbFt more on VP Import.
Cheers all
Si



Another thread here about this turbo:
http://www.lancerregister.com/showthread.php?t=199860
VW... I am by far not an expert on surging... but, the HTA does not surge *I think* because of it's anti-surge cover on the compressor housing. Now I'm just wondering, is it possible that when you need a surge cover like this, what's happening is the turbo is sort of working against itself? Someone who understands this more can chime in. I certainly don't.
New dyno result with T04Z... looks like this guy sold his twin scroll kit for this setup....
Thread here:
http://www.lancerregister.com/showth...hreadid=199928
Thread here:
http://www.lancerregister.com/showth...hreadid=199928
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Those are exceptional numbers. Again on an engine dyno the numbers mean as much as they do on a DLL style calculation.
With that said, a good solid curve, before and after results speak for themselves.
Norris has always done some exceptional work, so it isn't hard to believe that he has done a great job with this as well.
just don't get hung up with a numerical value that means didley.
With that said, a good solid curve, before and after results speak for themselves.
Norris has always done some exceptional work, so it isn't hard to believe that he has done a great job with this as well.
just don't get hung up with a numerical value that means didley.
AMS or DTM you guys need to try this turbo! it would be nice to get some 'US' numbers on this trubo to try and compear to to what you guys are seeing on your dynos.
could this be the next 'to have' turbo??
what so special about this trubo? dose it still use GT wheels or the older Tseries stuff??
cheers
Chris.
could this be the next 'to have' turbo??
what so special about this trubo? dose it still use GT wheels or the older Tseries stuff??
cheers
Chris.
Secondly, he says it spools better than a GT35R... regardless of how the dyno loads the engine, it's interesting to see someone say they've essentially found a GT35R killer.
I agree with the essence of your comments Whoop_Ass... just pointing out that I think the results here are more true than the false.
Well we have tested a few versions of the T04Z wheel, maybe not in Norris' configuration but none the less similar found here:
https://www.evolutionm.net/forums/sh...&highlight=dtm
And
https://www.evolutionm.net/forums/sh...&highlight=dtm
The basis was something large than a 37R and smaller than a 42R with a 94mm exducer.
The results were great. The T04Z is a great turbo if setup properly with the right head work and bottom end rpm capacity.
Now The standard 35R is a great turbo, BUT there are many good options out there now.
https://www.evolutionm.net/forums/sh...&highlight=dtm
And
https://www.evolutionm.net/forums/sh...&highlight=dtm
The basis was something large than a 37R and smaller than a 42R with a 94mm exducer.
The results were great. The T04Z is a great turbo if setup properly with the right head work and bottom end rpm capacity.
Now The standard 35R is a great turbo, BUT there are many good options out there now.
Well we have tested a few versions of the T04Z wheel, maybe not in Norris' configuration but none the less similar found here:
https://www.evolutionm.net/forums/sh...&highlight=dtm
And
https://www.evolutionm.net/forums/sh...&highlight=dtm
The basis was something large than a 37R and smaller than a 42R with a 94mm exducer.
The results were great. The T04Z is a great turbo if setup properly with the right head work and bottom end rpm capacity.
Now The standard 35R is a great turbo, BUT there are many good options out there now.
https://www.evolutionm.net/forums/sh...&highlight=dtm
And
https://www.evolutionm.net/forums/sh...&highlight=dtm
The basis was something large than a 37R and smaller than a 42R with a 94mm exducer.
The results were great. The T04Z is a great turbo if setup properly with the right head work and bottom end rpm capacity.
Now The standard 35R is a great turbo, BUT there are many good options out there now.
Thats awsome. When you gonna have more testing done?


