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Originally Posted by PackPride85
Highly doubt that. I'm running stage 1 tune and there is a noticeable increase in power in the top end running wagoner evo 2 IC. Like I just said, you're not going to get consistent power up top on the stock intercooler as the DME will just pull timing with the more aggressive targets.
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I’ll believe it when I see it. The BM3 tune was tested on the same day as the M2 tune in the second comparison and made less power. In fact, I’ve never seen a BM3 Stage 1 car make more than a stock M2.
I agree with you about timing being pulled, heat, supporting mods, blah blah blah, but the stage 1 OTS tunes are not that great.
Quote:
Originally Posted by PackPride85
Think about how any modern internal combustion engine is tuned. You've got the load targets (primary), boost target (usually secondary unless boost target is forced), and timing advance. When load/boost targets increase the car will always make more power under ideal conditions. Same with timing advance, except instead of setting it as high as possible you have to find the value that creates maximum brake torque. So yes you can "diminish" power by running too much timing advance past the MBT value at a given rpm/load but any competent tuner would be able to avoid this.
Once the ambient temp goes beyond a certain point you'll definitely see consistent power lost at the top with the stock IC, but not with an upgrade one.
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The easiest way to test this is using your logs and plugging it in Virtual Dyno. Again, I’m willing to bet the stage 1 tune makes less power than the M2 tune. Typically they target less timing and less boost as they approach redline - I know MHD admitted to such.