With the zfr do you use the stock boost solenoid or does the turbo have one on it already. Im asking cause im looking at one but no longer have the stock boost solenoid on my car because i have a 5557 on it

 

Why didnt you just keep the 5557?

 

Like to try new things go outside the box and i want the faster spool if they made a bigger zfr id get that

 

It comes with its own stock solenoid. Mine broke during install cause of the tight space so they took the one from my K04 and replaced it. Works the same. PS, I want a bigger EFR too. 7163 is what I'm looking at next.

 

ya im gonna talk to zzp and see if they can make a housing for a bigger one haha

 

why dont u just get a t3/t4 manifold and just get the bigger efr...

 

^^this

 

If anything I think he already has one working with his current 5557 pte. He can probably do that but the EFR is so big I can't imagine it side by side with an exhaust mani that wasn't made for it. You can try though lol. You should ask donkeyballs and see what he says about space, he has a custom manifold for his EFR.

PS, Matt@ZZP stated that it would be a while before they would start another option for 7163 "ZFR" option. They said it would probably need more than just machining the exhaust turbine manifold side of the turbo.

 

Ill probably just go with a zfr 550 is more than enough

 

^x2

 

If you want a faster spooling turbo, save yourself the headache of pulling together all the stock parts and just get a ball bearing 5558cea or a 5862 and go all billet.

My journal bearing 5558 spools 25psi by 3800rpm.