Boost cut issues

[Falconhell13]

So cut a long story short I brought a xr6t ba with a blown turbo. Whacked on ar.50 front ar1.03 rear gt35r turbo replacement. And away I went. But when boosting im getting that traction control cut feeling but its not traction control. Any tips on what it could be? As per pic all the stock air filter and intake piping has been deleted ( sounds bad ass btw but temporary ) the car never came with the original intake gear I cant chuck it back on to see if that could be the problem. I noticed it boosts alot harder getting air straight from the turbo instead of the filter compared to stock xr6ts iv had, could that be the problem or could the problem be because iv got a ar1.03 rear instead of the stock .73? Cheers in  advance

 

Edit the pic uploaded is before I got it back together. Just have the one intake pipe hooked up to the crossover

[k31th]

The stock rear is 1.06 AR, but it sounds like it's spooling too much and overboosting. Get a tune to suit asap or you might lunch the motor.

[Falconhell13]

So im guessing if I had used a stock turbo I wouldnt of had to tune? Is there anyway to cut back on boost myself?

[k31th]

The only thing you can do is connect the internal wastegate directly to the nipple on the front of the compressor housing... that'll force it to spool as slow as possible and only to the rating of the wastegate actuator... which might still be too much boost. Another stock turbo the same would not need to tune, that's correct.

[Puffwagon]

It'll be the actuator. Get a stock one in it and it'll be fine, or get a tune.

[Falconhell13]

Ok sweet excuse my noobness but just to clairify, I hook the line coming out of the compressor straight to the wastegate right? Deleting it from going to the bov aswell?

[k31th]

well it shouldn't be going to the BOV at all... it should have the boost control solenoid in between.

[Falconhell13]

Ok I thought it went to the bov for some reason lol

[Puffwagon]

Click this

[k31th]

3 minutes ago, Falconhell13 said:

Ok I thought it went to the bov for some reason lol

For your information: The stock BOV has three connections, one to the "cold side" of the boost path (near to the throttle blade), one to recirculate that air back into the air intake system and a smaller one that's a vacuum source that tells the BOV when to stay closed and when to open to re-divert boost air.