Garrett Internal Gate

[Don Dada]

Or creep due to the fact that the wastegate is just too small!

[tridentt150v]

If you do the maths, on a 2.5 litre car and using a turbo like a 3076 at 18 psi, the optimal size is 40mm for an external gate. Afaik, only HKS made a 40mm. If you can't get one of them then you settle for a 38mm or go up a size to greater than 40, I'm not saying other ewg's don't work - I'm just thinking that they are not in their efficiency range.

If your EWG is the correct size, then creep cab be massaged out by increasing your spring rate to closer to your maximum boost pressure. If you still have creep after this then you have a completely different issue like poor exhaust or manifold. And that is why you should avoid the spare parts bin sales and ebay specials, because unless you are prepared to do the R+D and sort it out over time, your basically saddling up a horse you just don't want to ride. Thats my thoughts anyway.

[DiscardTheWeak]

will the gt3076 with an internal gate hold boost?