Here is my recent dyno. Mods are;

720/550 Injectors
Rtek 1.7
2x380cc additional injectors
HKS AIC
T04b (undivided) .60/.81
Early open street port on secondaries
80mm downpipe/resonator
Apexi dual n1 exhaust
Stock IC
Manual Ball-Spring boost controller

When I dyno'd the boost started off at 11 psi and trailed off to about 7. I need a good boost controller...

My manifold just cracked too... this sucks

 

That is actually very similair to what I am going to be doing except I will be going with 880cc secondaries and an safc as well as rtek for fuel... do u have a walbro pump? also I dont know how long it will work with the stock IC but at 10-11 psi you should be ok how does the car feel on the road?

 

wow

 

We've redynoed and the car has a lot more torque in the midrange!

 

why exactly do you think a boost controller is going to keep your boost up?

if it doesnt hold the boost off of the wastegate spring, there's a problem. i had a manual boost controller on my TII that had a t04b vtrim 1.15 housing and it held boost just fine at wherever i set it.

i'm thinking you probably have boost leaks. thats probably the reason for the low TQ. your HP seems up to par for 11psi

edit: it looks like i may have been right about the boost leaks, maybe you fixed those when you redyno'd it and got more tq?

 

What kinda turbo exhaust manifold are you running?
With a 0.81 A / R turbine, it really should be making a lot more power earlier in the RPM band.
It doesn't look like it gets going until after 4,000RPM...


-Ted

 

In that dyno the ssa autochrome manifold had a nice crack. On top of that I just found out my turbo took a dump on me. Here is another dyno sheet after I had 1Revvin7 do some work on the car... Before and after are on the same sheet...

 

what brand turbo was it?

 

Nice jump in power!
Looks like just about +10 across the RPM range on average with a best of +35 at 5,500RPM at right around peak torque!

Is this pure tuning or was something mechanically adjusted?

SSautoChrome turbo exhaust manifold?
Oh that explains the poor flow at low RPM's.


-Ted

 

Take a damn picture of the cracked SS Autocrap manifold and post that ****, maybe then people will have the proof they need?

 

LOL. He posted a picture of the 1st crack in the single turbo section. I have pictures of the 2nd time around, which cracked in a completely different section...

 

Going to have to find those

 

Round #2 coming soon
https://www.rx7club.com/showthread.p...=1#post5364236