Upgraded to TE-60 now stumbles off idle

[AntMan]

Purchased a TE-60 off a excellent board member, now the engine stumbles bad off idle until it hit 15-20 mph then the turbo and engine kicks in. My engine is all stock computer chip, injectors, thorttle body etc....

Any ideas what could be my issue?

 

[AntMan]

Forgot to add it will backfire once and a while as we'll.....

 

[earlbrown]

Is the ground wire still hooked up to the J bracket (and tight)?

 

[corsair231]

First thing I would suspect is a vac. leak. Just changing turbos shouldn't make an off boost difference. Check to make sure all of your hoses are on good and the clamps are secure. Look at any hoses between the maf and the throttle body.

 

[fast86gn]

Surely it is a coincidence Corsair231 is right check for vac leaks. Why such a big turbo for a stock application?

 

[AntMan]

@earlbrown don't have a ground wire on the "j" bracket......only ground wire within the turbo is the ground off battery to the block and maybe some other leads stacked together (can't recall) should there be extra leads stacked together should they go to the j bracket?

 

[pacecarta]

stumbles or pop is usually --lean
first thing is you need a chip for that turbo ,
next is you probably dont have the injectors to cover that turbo

what does your scanmaster read when it stumbles or pops

and technically the ground is secured on top of the J bracket with the lower j bracket bolt . and technically the bolt for the battery ground is not into the block its into the passenger head

 

[AntMan]

Pacecarta unfortunately I don't have a Scanmaster, however I will get one soon. Looks like I need injectors and a chip also....Thanks

 

[TURBOPOWERED68]

Pacecarta unfortunately I don't have a Scanmaster, however I will get one soon. Looks like I need injectors and a chip also....Thanks

i have a set of 42.5 pounders with a TT chip for a car with a TE-60 -- My old combo i went 11.74 on that chip, injector and turbo.

http://turbobuick.com/forums/threads/f-s-42-5-injectors-with-tt-5-7-chip.385527/

 

[buickGN3:16]

These suggestions will deffinately get u on track!


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[Nick Micale]

Purchased a TE-60 off a excellent board member, now the engine stumbles bad off idle until it hit 15-20 mph then the turbo and engine kicks in. My engine is all stock computer chip, injectors, thorttle body etc..........

Typical case of a very BAD combination especially when just installing a larger turbo and expecting more power?

A TE-60 turbo will NOT work with stock parts, especially the converter, and you are just asking for expensive "trouble" with stock injectors.