Turbo'd the Focus!

[sutyak]

nice project Mark. what does a Focus weigh? 200whp prolly go pretty damn good.

My 5-door hatch weighs 2600lb and I estimate I've added approximately 50lb in the turbo project.
I'll be disappointed if I can't run 14 flat in the 1/4 especially with a future limited slip.

[Martin0660]

Also boost would leak through those cracks right?

Not so much "boost" would leak, but exhaust energy that is better served spinning the turbine wheel than going down the downpipe :D

On your boost response issue, how are you clocking the compressor housing? When you go to hook the wastegate actuator rod to the pin on the swing arm, you should have to pull the rod AT LEAST 1/2 the diameter of the hole to hook it on there, a full diameter is even better. This preloads the wastegate, and will affect boost response. Might be something to look into.

Bob Myers

[sutyak]

I have it clocked so I have to pull the rod appx 1/16" or so.. definitely not the 1/4" distance of the rod width.
I originally had it so it dropped right in.
I did notice a difference with that extra 1/16".
I was concerned with it not opening properly and overboosting. I guess that won't happen?
Thanks Bob!

[Martin0660]

I have it clocked so I have to pull the rod appx 1/16" or so.. definitely not the 1/4" distance of the rod width.
I originally had it so it dropped right in.
I did notice a difference with that extra 1/16".
I was concerned with it not opening properly and overboosting. I guess that won't happen?
Thanks Bob!

Nah, all you are doing is preloading the spring some. You CAN get it too tight so it will make more / too much boost, but it needs preload. This might expalin your boost response. When you are building load, part of the flow is going out the wastegate, and part through the turbine. You want it all to go through the turbine until the wastegate setting is reached. Like i said, I typically set them up so the "pin" is one hole diameter off from going in, that means I need to pull the rod about 1/4" to get it to go in. Some more preload should help you a lot. It really is that sensitive, the problem is, you might have to turn your compressor a good bit to get it there??

Bob Myers