Is that torque drop intentional?

What BOV is this on? And are you running the perrin intake tube and filter, or just the filter?

My car has similar bolt ons and I'm debating about switching to SD, how's the driveability compared to MAF???

 

stock cams, intake and internal gated style turbo all make for combo that loses hp out the top.

 

The torque is essentially the same.
Cobb XLE BPV, recirculated
Samco intake (similar silicone intake as Perrin) + 3" ID Perrin filter
No earth shattering difference between MAF and SD with regards to driveability for me, as both felt smooth. I did get a 6 HP increase going to SD from MAF.

 

I meant intake manifold.

 

I should have been more specific, my fault. I was referring to the torque dip from 4400-5000 rpm. I didn't know if that was intentional to limit stress on the stock rods or transmission/clutch as it's close to the peak tq area. I absolutely understand the dropoff at higher rpms, especially with stock cams.

Nice numbers none-the-less, especially considering the limited mods! You are definitely maximizing the hp/dollar ratio. I like what English racing has done from their many dyno threads and will probably have them remote tune my evo once I install all the parts I've been accumulating over the winter...

 

the dip at 4700 is an odd deal. Its not timing related as I added timing and it didnt go away. Its not boost pressure but I am thinking it has to be related to flow somehow, whether choke or something else.

aaron