All,
I need some technical information regarding twins. I already have a PDR HX35 Hybrid , ATS manifold, and studded head. I was going to replace this turbo with a HTB2 with the intent of staying with a single charger. Instead of doing that, why not just go twins?
I have four questions though:

1. I wish to remain 50 psi of less. If my turbo duct-work has a blow-off valve, why do I have a wastegate on my upper turbo?

2. To what pressure do I set the wastegate on this turbo?

3. I currently have RV275's, with a TST PM3 stacked with a EdgeEZ. Is this combination enough injector (fuel delivery) for twins?

4. What haven't I thought about?

Thanks for your time.
BARTMAN

 

1. Yes, the blow off vavles will keep you at or under the 50 psi mark. The reason for the wastegate on the small turbo is to bypass some of the exhaust gas to put it into the big turbo. (Helps with back pressure too.)

2. I have mine set to open at 20 psi. Works well there.

3. Yes, thats enough fuel. I am runing around right now with dd3's and an EZ. I can make 47PSI and can't get the pyro past 950* (I am also at 4700 ft. elev.)

4. You are forgetting that you can run a big set of injectors and still tow.


Justin