Another S/C Question. 2010 LS3 Grand Sport M6
08-12-2015, 10:44 PM
#41
Race Director
Member Since: May 2004
Location: Raleigh, NC
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St. Jude Donor '15
Lemme pull up my old tune file and the dyno log....
Okay, looks like I saw 13 degrees at peak power on that pull. Logged 14 degrees near peak torque. I was commanding a peak of 15 degrees up top, but the much higher than normal IATs pulled a couple degrees. IATs were 117 degrees prior to the first pull. It never gets near that on the street.
You'll probably also notice the little KR dip that I hadn't yet eliminated around 3500 rpm. I knew this was pulley/fuel combo would be short lived, so I didn't go too overboard tuning this low-boost setup.
Okay, looks like I saw 13 degrees at peak power on that pull. Logged 14 degrees near peak torque. I was commanding a peak of 15 degrees up top, but the much higher than normal IATs pulled a couple degrees. IATs were 117 degrees prior to the first pull. It never gets near that on the street.
You'll probably also notice the little KR dip that I hadn't yet eliminated around 3500 rpm. I knew this was pulley/fuel combo would be short lived, so I didn't go too overboard tuning this low-boost setup.
Nice torque curve too. I'm pretty impressed with the heartbeat setups..
08-13-2015, 10:32 AM
#42
Melting Slicks
Member Since: Mar 2007
Location: Santa Barbara CA
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I'm pretty impressed with the Heartbeat myself. While I'm probably down ~75 rwhp from my old cammed T-trim setup, I really don't miss it. The power under the curve makes this thing a bunch of fun and makes the power it does have even more potent. I want to get it back on the dyno just for kicks, but it really doesn't matter with how well it runs. It's held off some pretty quick cars in it's current form. Like everyone loves to say: we don't race dynos.