Cant boost after 6 bolt swap!

[Jets303]

Ok guys so heres the deal. I blew my race motor a few months ago so ignore my mods list Im bone stock. I swapped the blown 7 bolt out with a fresh 6 bolt. I used the RRE method and for the most part everything went well. The engine will start fine and idles puuuuurfect but it will not allow me to boost. Ive gaped my plugs, swapped cables, checked for spark, adjusted the CAS, swapped injectors(450's). I dont know what else it could be. Any ideas would be greatly appreciated.

 

[galant344]

boost leak? vacuum lines hooked up correctly to allow boost?

manual boost controller or stock boost controlller? if hooked up wrong you will probably be stuck at 10psi or less. are yougetting absolutely zero boost?

 

[Jets303]

No boost leaks and all un needed vacuum lines have been eliminated.

 

[galant344]

i would double check the boost controller lines. internal gate or external gate?

 

[Jets303]

Im bone stock. T25. I can hear the turbo spool up but the motor just stops revin.

 

[97gst1126]

It soulds like a massive boost leak. If it is trying to spool up but hits a brick wall. Does it stock right at about 3k rpms or so? if its the stock crap turbo lines they could be ripped underneath the netting like material.

Or could be your wastegate is stuck possibly. I have the 6bolt swap in my 2g also and i dont recall anything that could stop it from boosting electronically. So it sounds like a mechanical malfunction somewhere in lines. Did you try a boost leak tester?

 

[gearhead37683]

have you checked the impeller on your turbo? i have seen some that will sometimes try to spool up but wont produce any boost because the impellars are bad.. but its just a thought

 

[TALONTRAX]

If the vacuum line to the (stock - ?) bov. is off/mis-connected, it will not boost. Or, the bov is shot & leaking. check the vacuum lines . . .

 

[Kid4g63]

How's timing?

 

[Jets303]

I ran the turbo before my Holset setup on my race motor. No problems boosting. Its all hard piping with a fmic and 2.5'' all the way up. NO boost leaks. Im running an HKS bov. I havent messed with the timing. Do you guys think it could be a compression issue?