:bowdown: Wow - what's your setup? How are you getting that much boost? If this is detailed somewhere, can you point me to it? I'm only getting 8lbs if I run it all the way to redline & maybe a bit above.

I am running the 9 LB pulley and the upgraded Si trim V3 impeller with a extra pulley setup to prevent Belt slip.

Stupid question: Is it easier to switch out the S/C pulley to the 9 psi one and risk belt slip at higher RPM's? Or change out the pulley on the other side of the bracket b/c it has a tension adjuster underneath?

The 9 psi pulley everyone is talking about goes on the front (serpentine) side.

9psi on serp. Then add my no slip pulley.

Gotcha. Thank you guys

So is Tbatt's kit only necessary with higher boost numbers?

Tbatt and Topgunz both offer a no slip idler pulley for the serpentine side. It's a good idea for higher boost applications.

Twincharged?
 

I haven’t seen any results when I search on VHR although it looks like Topgunz did it on a DE/HR? Nobody done it on VHR? What do you think about it? Build the block closed deck maybe 9:1 compression, mid or rear mount turbo, turbo piping would go in right before the IC. Doable? I know Redondoaveb already has a wastegate setup he shpuld do it, or at least that’s the next step of progression we could do.
I know newer Volvos are doing twincharged but their reliability is awful, been done on WRX’s but that’s kinda stupid bcuz you gotta build the motor, the tranny... think we could do better on this VQ?

Please move this entire conversation to a new thread. This will clog up information on the A2A thread that will be of zero value to anyone interested in A2A.

Ecutek or uprev? What's best for this kit and the stillen supercharger?

Both can achieve effective and efficient tuning. It's really up to the tuner. It will be better replacing your MAFs with the UpRev MAF GT sensors when using UpRev. ECUTek offers SD-hybrid tuning allowing tuner to tune your Z based on MAFs and MAP - an alternative and flexible solution. Should you will run E85, ECUTek has been the only tool I have seen here for tuning flex fuel so far.

I would only recommend Ecutek. The pro tuners who tune with both platforms will highly encourage you to Ecutek tune.

Thanks guys looks Like I'll be selling my uprev cable and lisence them.

Data is regarding the supplied filter with the kit.

So to go back to the filter question and R&D. I installed everything, ran no filter, and saw 12.6 psi. My tuner suggested that I put the filter on to protect from grime buildup and we would continue tuning. Yesterday I put the filter on and did some pulls. The most pressure I saw was 7.6 psi, giver or take .5 psi.

To recap:
Filter off: 12.6 psi
Filter on : 7.6 psi

I've had this kit on two cars now and I've threads showing how thoroughly I've searched for leaks or low boost pressure causes. It was this simple all along...

Also, to be clear, this is a fantastic kit! Aaron has done an awesome job! Like everything else, we just find ways to make it more efficient.

Which filter ? The small one supplied?

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