Help me SPOOL!!!!

[garage16]

Alright so Im gonna make this nice and short....

Im running a fully built 4g63 2.0 with a GT42 (non-R) with a T6 flange and a 1.15 A/R


Im looking to change the turbine housing ### mine takes forever to spool

Now would a turbine housing of A/R 0.98 make it alot better or would it just help spool just a bit more then a 1.15?

 

[Stone'S GSX96]

Just a question what compression Are you Running?

 

[EvilutionaryTSi]

what rpm do you spool at?

 

[scoby41]

That's a pretty big turbo son

 

[Stone'S GSX96]

That's a pretty big turbo son

Yeah thats a prety BIG Turbo!!

 

[csgsx23]

You have that large of a turbo and are asking us to help you make it spool better. Did you do any research before you bought the turbo?

 

[delta448]

Don't change the turbine housing, change the whole turbo. If you're not building an all-out drag strip terror, you don't really need a 42R. Is this going on a 2L? Supporting mods? More details please. Maybe you could update your profile.

Changing the turbine housing might make it spool a little quicker, but it will choke down the top end flow and can cause surging issues. You'll end up with the flow of a smaller turbo with the lag of a bigger one. What exactly are your goals? Do you really need a 42R to reach them? A 4088 might be a little more manangable if you're looking to stay T4, and it has plenty of power potential.

 

[Boosted_out]

Yeah a GT42 is overkill for just a street car. How much power are you trying to put down? You could go with GT3076R they put out upto 525HP.

 

[cjridert1]

Retard your timing and add more fuel, see if you can get it moving a few 100 sooner