Z4M G-Power SK I Initial Impressions

[beta]

Originally Posted by pokeybritches

Updated with a dyno!

The torque numbers are impressive, the curve looks very similar to the stock curve too. No wonder it feels like NA but more powerful.

That's about the same torque as VT2-525. Of course ESS and VF keep the same torque until redline, while this kit drops down a bit. But it really shows off how this blower is really efficient at 5k rpm and well matched to the engine. At only 6psi of boost makes it more impressive.

Definitely a great choice in kits. Should see more people installing it!

[pokeybritches]

Originally Posted by Rated M Roadster

Can you set the bottom of the graph to rpm? Also, what's the big dip in power?

I don't have the file, only a jpeg. That's why I'm going to get another dyno in the next few weeks. I want to see rpm and AFR.

[Rated M Roadster]

Originally Posted by pokeybritches

I don't have the file, only a jpeg. That's why I'm going to get another dyno in the next few weeks. I want to see rpm and AFR.

Make sure they send you the whole file before you leave next time. Then download the software and you can post any variation of the run you'd like.

[pokeybritches]

I wasn't present for the dyno run. I live 11 hours away from the shop that did the install, and I wanted to make sure AFR's were correct before I picked up the car.

[Rated M Roadster]

Originally Posted by pokeybritches

I wasn't present for the dyno run. I live 11 hours away from the shop that did the install, and I wanted to make sure AFR's were correct before I picked up the car.

Well it's very likely that they have the file saved still. Ask them to send the whole file and not just a screen capture...

[pokeybritches]

Originally Posted by Rated M Roadster

Well it's very likely that they have the file saved still. Ask them to send the whole file and not just a screen capture...

I have, and it's not available. I'll get another one in cooler weather shortly.

On a different note, someone backed into my car today, so it may be out of commission for a little while. It's drivable, and fortunately the guy at fault was honest and found me in my office to let me know what happened. I'll use it as an excuse to get the reflector holes filled in.

[ZeD4Mr]

Any more update or review on the G-Power kit now that you have more miles under the belt? Tracked? Heat issues?

[pokeybritches]

I've had zero issues with the kit or install. It feels OEM, but with another 150+ horsepower. I haven't tracked it and don't plan to in the near future. I've put about 5000 miles on it so far.

I've decided to do rod bearings in the next few months, and that doesn't leave much left over for anything else. I moved to a place that gets real winters, so a set of winter wheels with all seasons is unfortunately on the agenda too. I doubt the car will see a track in the next 18 months.

[pokeybritches]

3rd gear pull

[pokeybritches]

1st-2nd with DSC on

[ZStig]

cools vids, thanks

[Woots]

Awesome

And a silver grey with hardtop looks immense! Need to ask Santa for one...

[pokeybritches]

After 8000 miles, the kit has performed extremely well. No stalls, CEL's, or oddities while driving. Full and part throttle response is perfect. My only issues have been tightening a hose, securing a bypass valve bracket that popped off, and a mild vibration in the cast manifold at idle. Full review coming next month. Peak boost is reached by 5000 rpm. The vibration in the video is from my work laptop in the passenger seat.

[pokeybritches]

Looks like the video quality sucks. Will reload in HD tonight.

[pokeybritches]

Fixed. HD version uploaded. 3rd gear from 1000 rpm to redline.

[p1nk50ck]

you're in my area now, right? i'd love to see these cars in person

[pokeybritches]

Originally Posted by p1nk50ck

you're in my area now, right? i'd love to see these cars in person

As soon as this snow clears..