View Full Version : Turbo technics s208 grub screw adjustment
Kaaaiju
19th September 2023, 07:30 AM
Hi
With the TT 208 have anyone played with the grub screw adjustment to get boost a little sooner?
SPROVER
19th September 2023, 08:35 AM
Have you got the tune from Ben for that turbo? He told me I had to adjust mine to bring it on boost quicker but I haven't touched it yet. Its a bit laggy at the start. I also have a tune from Shack on here and his tune comes on boost pretty much straight away. Although it's not as strong through the mid range as Ben's. Give Shack a message about it. He is really helpful and does great tunes for the td5.
Cheers
Chris
Kaaaiju
20th September 2023, 07:48 AM
Got the tune from Ben,td5inside and Alive to try haha
I just got the turbo to play with untill td5zilla releases his turbo package and I’ll see what power that makes
Thanks for the response
Discofender
23rd September 2023, 04:26 PM
By grub screw Iguess you're talking about the adjustment screw for the wastegate? (as pictured), mine was set when fitted and certainly don't have much lag if any.....
Cheers Discofenderhttps://uploads.tapatalk-cdn.com/20230923/3419bfb82dc06f6dfc6be1d299baf593.jpg
Kaaaiju
25th September 2023, 12:10 AM
Yeah that’s it187058
found out today what the little vnt can do
Discofender
28th September 2023, 01:51 AM
Ouch, surprising. Auto or manual?
Kaaaiju
28th September 2023, 07:20 AM
Auto, do you wind the screw down or up to close the vanes?
Tombie
28th September 2023, 04:39 PM
Auto, do you wind the screw down or up to close the vanes?
There are 2 adjustments.
Small screw “up” sets the vane baseline.
Adjusting the length of the rod from the diaphragm will then change how far/quickly they open under boost.
Kaaaiju
28th September 2023, 07:36 PM
So make the grub screw longer or shorter for baseline boost?
Wastage is set as standard and runs 25psi
twr7cx
29th September 2023, 08:14 PM
In the decade that I ran mine I never adjusted it.
In saying that the new CRTurbo was adjusted at Ben's directions and it made the difference in achieving what we were looking for.
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