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View Full Version : Evo X - GST Cone filter preliminary testing...



GST Motorsports
03-14-2008, 05:33 PM
Did some testing today for the Evo X version of the GST Cone filter upgrade.

Amazed at the results so far...

Average +22whp / +22wtq gains!

Not only great power gains but it also greatly smoothed out the hiccups that the stock Evo X seems to have. Still uses the OEM factory air scoop and lid that brings in cool fresh air from the front of the vehicle.

More testing coming, and these filters will be available very soon. ;)

Stock vs GST open filter:

http://www.norcalmotorsports.org/users/bryan/mods/EVO/evo_tunes/evo10_gst_filter_031408/stock_vs_filter.jpg

The average +22whp/+22wtq was taken at 5400 rpm. The bump in power at 6500 is from a littler leaner AFR and holding boost

2 pulls back to back with filter:

http://www.norcalmotorsports.org/users/bryan/mods/EVO/evo_tunes/evo10_gst_filter_031408/filter_2pulls.jpg


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Then I put on some boost control just for giggles and the Evo X made an additional 26whp to make it 280whp. Matched the OEM boost peak of 23.5psi. However I think the turbo held a bit too much boost up top for the factory tune as the curves weren't the smoothest.

Brought the boost control down to 22psi peak (less than stock), but still held a bit more than stock up top. Did four runs back to back, smoother curves and average was 275whp. That is a 44whp gain over stock.

I can't wait to start tuning these suckers.

MJCT9A
03-14-2008, 11:40 PM
Impressive!!! I think we all under estimated the potential of the 4b11...dodge or no dodge...Look forward to more results...

MJCT9A
03-14-2008, 11:47 PM
Impressive!!! I think we all under estimated the potential of the 4b11...dodge or no dodge...Look forward to more results...


More Hyundai than Dodge. ;)

:buck2:

Stinji
03-15-2008, 12:01 AM
Yeah these new X's are going to be monsters once the tuners get a hold of em! Buschur reported 70whp gain on their dyno with cone filter, mbc, and a larger intercooler -- without touching the ecu!!!

Looney Tuning
03-15-2008, 01:16 AM
Very nice...Can you post the before and after AFR and boost curves? I would like to see the impact of the filter on the AFR.

RS-EVO-9
03-15-2008, 09:35 AM
I found these today on this evo x tuner website.

http://evoxtuners.com/evo-x-turbo-exhaust-engine-trans/35-evo-x-dyno-w-intercooler-pipe-kit-boost-controller.html

http://evoxtuners.com/evo-x-turbo-exhaust-engine-trans/36-evo-x-dyno-w-cat-back-exhaust-system.html

Maybe its putting down high numbers but I still dont like the looks. LOL

TeKiZeRo
03-16-2008, 03:18 PM
I sent you a few PMs several days ago, did you get them?

leaveit2bevo
03-16-2008, 09:42 PM
that tq graph drops hard is that more from the smallish turbo or no tuning?

CASH$ MONEY
03-17-2008, 12:21 AM
is the X is all talks IMO for now, until 2 years down the road for cams, turbo kits O0

evogeo
04-03-2008, 08:41 PM
is this just a filter upgrade or the whole kit? cause i installed a filter on mine and didnt feel adifference but definetly heard a diff!! :laugh: