I too had ordered the wastegate from ATP Turbo on September 4 and have had no news regarding future availability. I figure I'll just let my order float around in their system in hopes that if they manage to get a part or two in sometime it'll be at the top of their list.
I'll let everyone know right away if it ever arrives. In the mean time, thanks to all of you looking hard for viable alternatives. There's a lot of options out there and I'm sure one of them will work for us.

Heard from my contact at ATP Turbo today...the 433489-12 actuators are available again! Arriving today.

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 77k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

Just got this email:

Hi Jim,

433489-12, should be arriving sometime today. So I can ship this
out tomorrow if you still need.

Thanks!

__________________
Jim

Damn all of you! I jumped the gun and got the ebay cheapy one and controller. Seems to be working fine though. I am curious to see what my fuel economy will be. I doubt it will be as good as my return trip home that one time.

Oh well, too late for now.

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

You can just re-do it!

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 77k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife

I just received word from ATP Turbo that the actuator (P/N 433489-12) is now available for order.

-John

ATP emailed me yesterday and said the parts are in, my order should be here any day... very exciting

Do you need a manual boost controller to do this? Can't you just adjust the length of the wastegate rod?

__________________
68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i

To do the swap with the ATP supplied actuator? No.

To use the actuator that I did from eBay? I did. The ebay actuator kicks off at 7 psi or so. Half that of ATP/stock setup. The controller was only $10.

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

So you're using the MBC to limit the boost the WG sees and it holds it closed longer?

I appreciate the info, it sounds like the Garrett ones are around again, I was just curious. When the '92 comes back from the body shop I intend to do the swap.

__________________
68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i

Yup, exactly what I'm doing. I think it peaks at like 10 psi right now. I haven't really messed with it further. I drive 99% highway so I'm going to tune it more for that and if possible more economy.

Anyone know what the 602's peak efficiency rpm is?

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

I have the 1992 602.962 engine. Where do I acquire the block-off plates for all of the open orifices, including the exhaust port. Do I just leave the exhaust tube in place that connects to EGR and cap it? I am currently waiting on a reply from ATP regarding stock of the actuator.

You can leave everything in place, there's no need to remove it. Otherwise you'll have to fabricate block-off plates, or buy the kit from Brian Carlton, but it's easier to just leave it alone.

__________________
Check out my website photos, documents, and movies!

Thanks gsxr, you da man! So all I need to do is disconnect vacuum from emissions and install the new actuator set-up. Sounds too easy.

Exactly correct. The hard part is installing the new actuator setup, the rest is a breeze.