So anyway... i just picked up the diablosport predator tuner for my 05 and went through all the steps and installed the boxed performance tune... let me give you all some background though - i had my car dyno'd earlier in the year with just a magnapak catback and made 277/296 to the wheels... however, i was running real lean with the factory tune. Anyway, my first pull after the predator, i pulled 269/296 and was furious... so we looked at the graph and i was running really rich. so we yanked out the HC trap and redyno'd and i pulled 281/311. Although this is an improvement.. its a mere 4hp and 15 tq... something is up with the boxed tune and i am unhappy to say the least... ill post dyno charts if everyone wants to see them.


Also, i think the dablo pulls timing at around 5200 because while my peak horsepower was better, it fell earlier.

 

I don't think you can expect massive amount of horsepower/torque with the performance tune alone. An intake and a custom tune is where you are going to find the most horsepower and torque.

I just installed my C&L intake and Predator tune this afternoon and I can personally vouch for its performance increases.

 

same dyno, same day, same temp, same baro pressure, same coolant temp???

 

Same here.Untill you at the least install a CAI kit I wouldnt bother getting a programer.My predator works just fine, was a little shaky in the beginning but once i worked some small bugs out, it was fine and tonight i made my final adjustments on the Dyno with it.

 

Which tool (DiabloSport, C&L or Steeda) and revision are you using?

 

I haven't dyno'd with the performance tune but it sure feels stronger.
Were your pulls on a dynojet? SAE numbers?

 

Well, I was impressed with mine, but I certainly felt the biggest difference after I tooled around with it. I advanced the timing 2% in both rpm ranges and leaned it out a bit, and it's been working fine for me. No knocks, no pings, no errors.

Haven't made any intake changes other than removing the HC Trap and having a K&N filter. When I do I'm getting a canned tune from DTP, seems the JLT and DTP combo is working real well for people.

Once I completely change the exhaust system (headers, high-flow cats, and x-pipe) then I'll get a custom tune done at a local shop. Don't see the point in doing any before significant changes on both sides of the air equation. (intake and exhaust)

 

those numbers are adjusted... so i mean, i geuss the car just runs strong... it was a dyno jet at LG motorsports in wylie tx

 

Eric,
I would consider trying a different dyno facility because a couple of items just don't pass the "logical" test.

1. You say yours was running very lean with the factory tune yet every other dyno run of a stock '05 has shown they run dead rich from the factory. Why was yours so different? And no, aftermarket mufflers will not make that big a difference.
2. In no way, shape or form do you gain 12 hp and 15 ft-lbs of torque just by pulling the HC trap.

It sounds to me like there might be a calibration problem with the dyno or a/f ratio meter.

The Boss Hog . . . . . . . just my opinion

 

I tend to agree with Boss Hog...

 

dunno... dont u think the removal of the HC trap and filter could lean the car out a bit just to get my numbers back up? LG is pretty well known in the LS1 world... theyre dyno seemed to be spot on... but, i understand what ur saying.

also, just looked at my baseline air/fuel and i was runnign 11.6, so i was rich, when i removed the air filter and hc trap tho, i went to 12.8 which is where i wanted to be, this of course is with the tune. could be weather issues or heating issues also

 

Your 281 sounds right to me a C@l will peak you 5 more but look at the whole graph you shoul gain more or most @6000

 

Sorry Eric, but its a little hard to help you when you change the facts of your situation. First, you said it was running very lean while stock, now you say it was rich. You also never mentioned removing the air-filter along with the HC trap, which does make a significant difference.



The Boss Hog

 

i was looking at the charts and confused myself initially, my mistake. i apologize. and the removal of the airfilter had very little effect on anything... i gained 1hp and my air fuel didnt change at all...

 

I don't think dynos are accurate enough to be able to measure a 1hp increase. Even if you're taking an average across several pulls, you can't really say that you gained (or lost) 1hp.
Just my 2 cents for what they're worth...

 

I had a base dyno of 265... It was running real rich with the factory tune..
I just installed the C&L CAI with thier tune and put on some Bassani Axel Backs....
Let me say that this helped it a lot, not the bassani but the C&L with thier tune..
in the next week i will be putting on the Bassani X-pipe with thier comp cats..Then i will be getting a dyno tune from one of the best in socal...
i will post the before and after.....

 

Hi SMP:
Are you by any chance going to SoCal Diablo? I had really great results when I
purchased a chip for my '99 Cobra from them.