AudiOn19s

You can tell it's winter and I'm bored and dreaming up projects.

Has anyone tried to install a 997.2 cup dual inlet airbox in their 996 GT3? Obviously the decklid needs to be cut for the provision of the second air opening but does the fan get in the way? I know for the 997.1 the fan isn't a blocker to this modification as many of those guys have done this on their 3.6 997.1 cars. I think I might have seen reference somewhere that that latch clearance might be an issue? Any other issues with alignment with the throttle body or adopting to the smaller throttle body on the 996 or would this require the 82mm throttle body to be successful?

Thanks for any input and for bouncing ideas around when it's cold out and I'm impatiently waiting for track season!!!

LuisGT3

Subscribed.

mmuller

AudiOn19s

Congrats! Safe travels I'm sure there will be quite a few fun miles on that trip home.

Let me know if you find out anything on the airbox fit.

Dervish

Doesn't Dundon do something similar?

http://www.dundonmotorsports.com/por...n-fiber-airbox

Not cheap but looks very nice....

AudiOn19s

It's a beautiful solution but it's single inlet and I'm not sure if he did that because there are restrictions to getting air into the second inlet in the cup box or if the thought process was most customers probably don't want to cut the decklid to get the 2nd opening. He does gain surface area on the filter with that cone setup and again it's beautiful but it's more than I'm looking to spend for what I'm after.

There's no point in throwing a dual inlet box in there if you can't seal it to the deck lid, otherwise you'll lose the effect of a pressurized airbox in the first place and it will just suck hot air from the engine bay.

KOAN

Matt,

Congratulations! Did you get a 991.1 or 991.2? If 991.2, manual or PDK. Is it stock?

White?

Pics?

KOAN

Andy,

I've heard that the larger throttle body alone results in no improvement. It needs a tune and headers (which I think you have).

So I'm not sure that intake air is an issue.

I got antsy this winter also. I'm throwing in a supercharger. GM motors are easy to mod.

mmuller

Its a 991.1. It's more for the wife than me.

She gave up driving the last few years, only doing days here and there so she could do tower. This year she is Treasurer and does a huge amount to help our new business in the background. Then I go and almost die and she basically saved my life and got me back on track. So I decided I had to get her back on track because she really does love it. She drove Janice's car last year at WGI and got out and pronounced she was never driving my 6GT3 again as I had ruined it and she wanted one just like Janice. After looking at GTS Cayman's, New 911T (they look like they could be a fun car) I settled on a low mile 991.1 GT3. It's about her and the PDK was a big part of it as my 6GT3 is the only stick she drove and its a bit intimidating. I never intended to get a Guard's Red car, but I found the perfect 5K mile, 2015 in Florida.

Turns out my recovery is going slower than I hoped (but probably normal) and caged cars are still not a place I can be yet. So it looks like for certain events, the 991 will also be my track car, at least this year. Not sure which events yet.

Pics after we pic it up as I only have goofy dealer shots.

More on airbox's soon.

mmuller

Chuck, you need to update your signature.

Boosted GM motors are an interesting field. Hope you find the horsepower balance GM didn't find in the Z06.

We have had a few Vette's in the shop recently. Interesting car's and the evolution of their progress. The new cars should be very fast.

AudiOn19s

Dervish

I have the plenum, larger throttle body and 997MAF housing as per Serge's 4L build https://rennlist.com/forums/996-gt2-...ml#post8944225 together with larger diameter M&M exhaust and custom EVOMsIT tune. It does improve things but t's a lot of $$$$ for minimal gains looking back. Don't think I'd want to start testing/ cutting up decklids in addition to this. Dundon do require the thinner 997 fan in order to fit their box so that would be a minimum requirement for the OEM .2 box.

mmuller

So, in looking at a 6GT3 to a 7GT3 doesn't tell you much as the 7GT3 isn't really any different. I looked at a bunch of photos I have of my 7GT3RS (since I sold it last year I look at the actual thing anymore ) and my observation is that it would not be a good fit. Aside from need the smaller fan that Devish points out, you would also need to add a spacer of some kind to make up the distance between the inside of the deck lid and the air box. Even then, I am not sure you would properly achieve the desired goal. The easiest thing to do would be to get two new deck lids, a 6GT3 and a 7GT3RS, separate the two sides of the deck lid and then put the inside of the 7GT3RS deck lid onto the outside of the 6GT3 deck lid. You would also need to add the scoops to the upper deck lid to ensure there was adequate airflow into the air box.

So overall, based on my quick assessment, a pretty big job to achieve the proper end result is what I believe.

onelove

I've got a 997.2 GT3RS Air Box laying around here that has been collecting dust and have also pondered with taking this on, but unfortunately haven't had the time to further explore this option. Also have a 4.0 here, will try and block off some time in the next few months to do comparing.

AudiOn19s

sounds like I'm just going to focus on finishing up my exhaust project then just drive the thing. Thanks for the feedback everyone!