openin to early and not holdin boost

 

What turbo and what a/r turbine housing?

 

custom built gt30 by turbo dynamics 0.70 i think

 

You shouldnt have any real back pressure issues with that a/r then... What is the state of the actuator?

 

its got a ported wastw gate or sumthin , i had a 1.2 bar actuator on it and it would do 1.5 bar to 5k then backed off to 1 bar, ive now got a 1.5 bar actuator and its doin 1.8 tailin off to 1.5, we have put sum more pre load on it now so mite be able to get it to hold 1.9

 

Sounds like it wasn't ported enough or the actuator is something crappy.. Might be worth trying a -31

 

thats not as strong as the 1 ive got on it

 

Does this seem the right turbo for a 3dr Cosworth ?

The part number is GT32-73TRIM-78AR, the pricing for this is $675.00 and we
only have the internal wastegate available. The shipping is approximately
$119.00.

 

Ask them what diameter the compressor wheel is, 71mm or 67mm

 

The ones they stock are 71mm, but they can get both, will 71mm be the one i want Dave ?

 

And the answer was 71m, but they are not watercooled though.