using THDP with PTE's new S cover with ported shroud?

[Tom Tom Turbo]

I have a 3" THDP and I'm looking at the billet 6262 with S cover and ported shroud. What's involved in making these two pieces work together? Am I better off with the E cover...even though I think the ported shroud is a pretty nice piece to have.

thoughts?

 

[Slow91z]

The exhaust housing doesn't change your DP will fit just fine.

 

[Tom Tom Turbo]

that's what I thought, it didn't make any sense when they were asking me what downpipe I had when inquiring about which cover to use.

thanks for the help!

 

[Slow91z]

I supposed it's "possible" that the wastegate might fit different, but I can't imagine it's a problem people use that style wastegate with 70GTQ's.

 

[RUQWKNF]

Most of the time, we ask those questions when someone calls to order a wastegate actuator from us. It matters because we need to know what backing plate clamp needs to be welded to the actuator.

Example:
If you have an S or SP compressor cover on your turbo and you get an actuator for a stock turbo, the bracket/actuator will not bolt up. Same thing if your turbo has a H cover and you get an actuator for a E cover turbo, it won't bolt up.

It's all about the backing plate clamp.

For the record:

Stock turbo = bracket is spot welded / installed by Garrett at factory. For use with the stock TA compressor cover on all '86 - '87 and '89 TTA.

E compressor cover = 3 bolt backing plate clamp welded to the factory actuator bracket actuator by us.

S & SP cover = 2 bolt backing plate clamp welded to the factory actuator bracket by us.

H compressor cover = 2 bolt backing plate clamp welded to the factory actuator bracket by us.

If you actuator bolts up to your compressor cover, there's nothing else that keeps that turbo from not working with a THDP.
A THDP will bolt up to all of our 3-bolt Buick turbos that we sell.

Hope this helps.


Patrick