Hey Aquaman, eagerly anticipate your results. If possible back to back tests and results should be interesting and conclusive in your and then my application.

 

ALK, et al;

I went to Union Grove last night. I don't have my timeslips in front of me with all the
details, but I remember the big picture.

I tried to duplicate as best I could the 2 runs. I cooled down for about 30 minutes
prior to each run. As I turned onto the return lane I checked engine temp. and it was
198 deg. each time. Weather was in the high 50's with low humidity. Running
into about a 15 MPH headwind. (yes, it was cold!!) All runs had 60' between
1.95 and 1.98. I also ran in the same lane all 3 times I'm going to talk about


First run was with the Factory tune installed. 12.88x @ 109.6

I then loaded the 435 tune. Only wrinkle I wasn't exactly sure about was "do you
want to reset all parameters?" I answered yes. I f that was wrong, please let me
know.

435 tune run. 12.86x @ 110.4


I then let the car cool down for about an hour and ran again. That run
was 12.85x @ 110.7. Temp on the return lane was 196 deg.

Assuming I loaded everything correctly, I guess I didn't see much of a
difference. Maybe it was cold enough that the Factory tune wasn't pulling any
timing (novice guess, no flames please).

If you have any other questions, or if anyone would like to make comments,
please let me know.

 

Keep in mind the ET improvements will come from traction, not added power, in fact, added power usually leads to less traction.
Your MPH did go up by one full mph, which is the equivalent of 10 rwhp, but I would bet there is more there as the headwind was likely holding you back a bit.

Thanks
Mike

 

Sorry to hear about your minimal performance increase. Maybe you did something wrong when you downloaded the performance tune. I can't speak from experience since I have never used a Predator. I would certainly have expected at least a .1 or so and maybe a mile an hour or two. Maybe you were getting spark retard. Look at the positive side, you would have made a hell of bracket racer! Good luck and please keep us informed.

 

Mike L;

Good point. Even though I was trying to make the first runs as even as possible,
I'm sure the track was changing as the sun was setting. And I agree that from a
HP standpoint, the MPH is more important than the ET.

Assuming it ever gets warm around here again, it will be interesting to see if there
is a SOTP difference.

Thanks for all of your support!!

 

Reread your test results and noted that your last run was after a lenghty cool down. Don't most cars show a performance increase after a cool down and therefore the increase on the last run would be from temperature not the Predator? Do you feel like the performance you've gained thus far as being cost effective? Did you expect more? It's advertised that you gain 35 HP with a CAI, exhaust and tuner. I don't think you've gained this thus far. I'am disappointed for you and I because I thought you would gain a .1 or so and maybe a mile an hour or two so I could purchase one of these. Again, please keep us informed.

 

Maybe SLP could chime in and lend there support and/or input.

 

That 35 hp gain is likely a made up flywheel number, not relative to the real world.
A CAI, exhaust and tune will be hard pressed to add 35 rwhp on a C5 LS1, more like 20-25 rwhp on a good day.

Thanks
Mike

 

ALK,

I went with the SLP Predator because I wanted to be staged to do the 435 kit, which
includes the 160 t-stat, intake, and exhaust. I probably wont do the other things
til spring, but I thought doing the Predator first would give me a little experience
before I do the rest. Would I have liked to have seen a tenth on the ET? Sure.
But I'm not disappointed enough to give up. I know that to get the 35 they talk about,
you need to do all the mods. If I had done all the changes and not seen anything,
then I would be disappointed. I went this route because I wanted something that had
been engineered to work together rather than trying to figure it out myself.

Mike L,

Yes, that is a flywheel number. It would certainly be something less than that at
the wheels (also, its a C6, LS2)


Once again, thanks for the support!!

 

LOL, forgot which section of the forum I was in for a second there!

At least we are discussing tune related topics, not looking at pics of wheel well moldings.....(never understand some of the stuff that gets posted in these scan/tune sections)

Thanks
Mike

 

Hey Aquaman, my apologies to you and everyone! For some reason I thought you already had a CAI and exhaust.

 

An update on this topic.

With the assistance of 06MonteSS over on the Diablosport forum,
I figured out how to do logging and found out my SLP 435 Tune was very rich (10.97 AFR at WOT) With 06MonteSS's tireless help, I was
able to get my AFR's in the 12.5 range. Details are at:

http://www.diablosport.com/index.php
name=PNphpBB2&file=viewtopic&t=4163

I noted that the SOTP performance felt noticable better, but I thought it would be better to get some real data. So, I just got back from
Union Grove Dragaway and I thought I would post the results and
some observations. I should note that the DA today was very good
(-1500) compared to about 500 the last time. I'm not smart enough
to know how much difference that might make. I should add again that
this is an 07 C6 A6, which is bone stock other than the Predator tune.

Best run on 435 SLP tune 10/9/07 - 12.858 @ 110.51

Best run today (11/18/07) after 06MonteSS
helped me get the tune straightened out - 12.635 @ 112.71

Needless to say, I'm very happy with these results!
I'm looking forward to adding a CAI in the spring and seeing how that helps. Observations:

1. Don't assume that because someone sends you a tune it will work.
Learn how to check it out.

2. I logged the IAT with the stock Air Filter set-up. Even though the
temperature was 42 degrees; all the way through first gear the
IAT was 84, and it never got better than 68 at the traps. That
tells me that a CAI should help alot.

3. Don't ask who has the best CAI unless you have a lot of time to
read responses.

 

nice man!! glad to hear of the improvement...

if your WOT AFR is still around 12.5, we can still lean out your PE fueling a little and get'cha some more power up top there...

 

Lew strikes again!
Very nice work guys...gotta love a .2 improvement and 2 mph!

Time for a Vararam.....how about 115+mph?

 

Lew is Da Man!!

I think the Vararam will be my first order of business in Spring. If I installed it now,
it would not function as a CAI, but rather an SBI (Snow Blower Intake).

 

Lol....
I have seen and felt the performance of the Vararam first hand, and nothing at all against any of the other CAIs out there, but the Vararam stands in its own class when you are looking for all out performance.