Shark Injector Installed

[FL116]

OK, the deed is done. Initial impressions? General drivability GREATLY enhanced. Throttle response is much better in routine driving. Never really considered the drive-by-wire in my car to be at all bad, but in comparison, it stunk compared to how it feels now. For example, the car just feels a LOT more alive immediately after shifting into 2nd at normal cruising velocities.

As for the dreaded 4k dip that I'm hoping to cure - I only got to put my foot into it a couple of times so far, but it's still there, at least slightly. This was in 105-degree heat with the AC blasting, maybe not the best conditions to get a fair read, so I'll drive it some more before I pass judgment on that issue, but if it's not (largely) resolved, I'll be disappointed. Stay tuned.

Glad to hear the car feels more alive. Ill be waiting for more updated impressions.

[ecrabb]

Glad to hear the car feels more alive. Ill be waiting for more updated impressions.

Ditto!

SC

[KevinC]

Driven some more now (though I've also been driving the "other" car lately, talk about a way to make your ZHP feel limp), and is definitely a big improvement over stock. The 4k hesitation is still there, but it's improved. I'm running some Techron through it now, and trying to drive it a bit more aggressively, hoping that will perhaps help some too. I'll update again in another week or so.

[johnrando]

[Sockethead]

There will always be a little blip around 4-4.5k. That's when the DISA valve opens...
I had the dip "fixed" at the dealer.. They sent it to BMWNA for rework. It was still there after that. Rebuilding the DISA helped a lot but I think that transition is always going to be there

[cakM3]

There will always be a little blip around 4-4.5k. That's when the DISA valve opens...
I had the dip "fixed" at the dealer.. They sent it to BMWNA for rework. It was still there after that. Rebuilding the DISA helped a lot but I think that transition is always going to be there

I think I need to get the GAS DISA rebuild kit for my ZHP....

[ELCID86]

I think I need to get the GAS DISA rebuild kit for my ZHP....

Yes you do. :-)


Thumbs, iPhone, Tapatalk.

[wsmeyer]

There will always be a little blip around 4-4.5k. That's when the DISA valve opens...
I had the dip "fixed" at the dealer.. They sent it to BMWNA for rework. It was still there after that. Rebuilding the DISA helped a lot but I think that transition is always going to be there

I don't have any sort of dip at 4k or anywhere for that matter. Here's a run through 4k in 2nd and 3rd.

[slater]

nice and linear, william! do you have the shark injector tune?

i'll have to post a video of mine. i have a slight dip but it seems quite a bit quicker overall than yours.

peter

[KevinC]

I think I need to get the GAS DISA rebuild kit for my ZHP....

I have the full-on DISA "Gold" from GAS, a brand new DISA with the kit preinstalled. Didn't help when I added it 3 years ago.