2008-2013 Cadillac CTS Performance Mods Discussion, LFX owners, final testing results and product release. in Cadillac CTS Second Generation Forum - 2008-2013; It has been 3 long months of the LFX world waiting for the fianl testing to be completed and the ...
- 07-22-12 06:59 PM #1
LFX owners, final testing results and product release.
It has been 3 long months of the LFX world waiting for the fianl testing to be completed and the CNC tweaks to be finished so the VMax CNC ported throttle body can be released.
We saw 2 months ago with the intial testing that the gains and off idle throttle response were exceeding the LLT version, but the final pattern has taken all this time to be perfected and here are the before and after dyno results.
This is on a bone stock car, with only a cold air intake. No tune, no exhaust, just the swap.
There were 3 runs done prior (not using the runs from 3 months ago as the weather conditions have changed drastically here in FL), and 3 runns after, then the same temps and DA conditions were set as a base and back to before and after runs.
Mike Norris in Indianapolis will be the next shop to test on a different stock LFX car, different elevation, and different dyno. Then out to JDP motorsports in Utah as a 3rd to get as much of a differance in the climate and elevation the country has to offer.
Here is the finished product (this is NOT interchangable with a LLT, only the LFX).
And the dyno graph done at Kesatie Motorsports in Sarasota, FL.
While peak gains are impressive with a solid 9 rwhp, and 5 rwtq, between 1200 & 2400 RPM on the street driveability tests the dead spot is completely eliminated and we saw over 20 rwtq from the hit and that is where this thing shines.
The car it was tested on is an auto trans, and it can smoke the tires at will in the testing where before would only do this if power braking to begin the spin.
We still saw a slight amount of timing pulled due to spark knock over 6k RPM, but a tune should address that, and with any mod that increases airflow & velocity, a tune should show even more.
Stay tuned as the other shops and customers recieving these do their own independant testing, but the product is offically released and available.
- 07-22-12 09:39 PM #2
Just a few questions...
(1) Was the test done with 87 or 92 octane gas?? If 87, would 92 have tamed the knock sensor?
(2) When I had a ported throttle body on my 2004 CTS-V.... The only thing I did not like about it, was the fact that it caused the rpm to stall and hang around 1,800 or so after a quick stab of the gas in neutral.. I didn't like that and was wondering if this one acted the same way.
(3) I also would like to know what brand name of cold air intake you used.. And Could that possibly be some of the blame for the leaness at high rpm and also be lending a hand in triggering the knock sensor?
(4) I would also like to see a dyno run without the CAI installed, just to leave out the possibility of it being the cause of the HP/TRQ gain. Any chance of this happening?
- 07-23-12 05:39 PM #3
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