Thread: 4th Gen HP Peak
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Old 04-28-2011, 04:08 PM
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Quote:
Originally Posted by barn View Post
Mine stopped gaining at 5300 rpm torque started to drop at 4300 rpm.
Exactly, looking at GTs chart and this one (can't remember where I downloadedd it...maybe from AEM) the HP hits a plateau at 5300 and the torque has already been dropping. Running your rpms much higher will only hurt your times. Only my opinion but shifting at 5500 would be ideal b/c it'll take the trans a split second to shift and the rpms will drop right back into the heart of the power band. Shift any lower than 5500 and by the time the trans shifts the rpms might drop too low in the power band. Shift any higher than 5500 and you are spending unnecessary time in the rpm range where power is dropping and it'll probably feel like the rpms are "hanging".

I'll post my dyno charts next thurs or friday and see what the curves look like. I'm having an Arrington cam installed and 2 tunes written. I finally gave in and bought the aFe stage II cai also.
Attached Files
File Type: pdf AEM_dyno_graph.pdf (95.6 KB, 43 views)
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