TTA Turbo accuator - anyone sell these?

[2QUIK6]

Looking for a stock OEM accuator I think the diaphram in mine must be broke as it's overboosting. Put on a spare I had for the GN and it works fine.
Any vendors sell these and aren't they slightly higher in spring pressure than the GN's?

 

[Jan Larsson]

I use this one on mine ... 1984 1985 1986 1987 Buick Regal Grand National Turbo T T-Type GNX ADJUSTABLE WASTEGATE ACTUATOR #6696

Kirban will be in Hebron I believe so maybe ask him to bring you one and we can take that hardtop of yours apart at the show lol.

Never heard of the GN or GNX having a different one however I know there's a aftermarket "high performance" one not sure what the difference might be (higher spring rate or something).

See you next week !

 

[2QUIK6]

Wanting an oem non-adjustable one for the not modified ttop car . There are 2 different spring pressures for the GN I think the stock one is about 11 or 12 pounds and the HD one is 18lbs I think. Didn't know if the TTA is different or not???

 

[Jan Larsson]

Not seen a none adjustable for some time, even the GM OEM replacements where adjustable at least all I've seen.

Post in the wanted section as someone must have a nice take off from a low milage car ... as far as I know (have to check part number) the GN and the TTA one is identical.

 

[2QUIK6]

Not seen a none adjustable for some time, even the GM OEM replacements where adjustable at least all I've seen.

Post in the wanted section as someone must have a nice take off from a low milage car ... as far as I know (have to check part number) the GN and the TTA one is identical.

They may be the same and the differing stock boost level comes from either the wg duty cycle pulses from the chip programming and/or the different sized orifice in the 'Y' vacuum tubes. 13# vs 16.5#.
Yeah see ya next week !