Ok I added a turbosmart manual boost controller. On just the springs Im hitting 9.6psi.
It has survived so far.
Now with the new contoller turned all the way down its hitting my boost cut (terminatorx) at 12.5 psi.
I think 11 psi is a safe limit but what say you.
Combo
509 2 bolt block with ARP bolts
Stock crank
Stock 5.56 rods
Trw forged flat tops
Felpro composit marine head gaskets

My goal with the controller is 1 or 2 psi because im stuck at 11:0×× @ 121 mph and desperately want that 10:99
This is a street car.

Running straight pump E85

Also what coolant pressures should I be seeing? Mine is fluctuating 1-5 psi and drops to zero under load.
(Pic is data log of the boost cut moment)

#ad

 

whats your 60ft and 1/8 mile
Pretty sure when it reads zero once you put load on it , it is getting rfi. Ive seen peeps talking about it.
Might look around. I think I saw sloppy talking about it while he was wiring his car on a recent video.

 

Best run is
1.68 to 60
7.089 @99.8 1/8
11.03 @121 1/4

I also have a 11.6 @121 slip as well.

 

Well 1 psi should should be more than enough. Or get it to 60 better. A small change in the 60 will do it.

 

Yea my 60 is slow. Im trying not to spin out of the hole. I want to be more aggressive but I also have to drive it home ya know.
I took the boost tee back to summit and bought 7# springs. There was 5# in it before. Haven't been able to test yet.

 

Split monos and Caltracs for the win. 10.95 @ 123 knocked .2 off the 60 and could very well leave harder