40% drivetrain loss help needed
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Hi all, I just installed a phase 2 roush supercharger on my 2016 f150 xlt crew cap (4wd). I tried it on couple of local dynos and I’m have around 40% drivetrain loss. The costume tuning had a slight increase in rwhp over the roush calibration (391 rwhp) but still no where near the expected results. Could anyone please point me toward what might be the reason behind the big loss? And what can I do to retrieve some of the lost hp? Mods: Jba headers + catback borla atak Fox 2.5 shocks 17” method wheels wrapped in 285/70/17 BFs all terrain |
Aired up tires, run in 4th gear, maybe 5th?
Did you do a pre-modification dyno run? Let's see the dyno sheet. What did Roush Performance say? |
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Originally Posted by MKTRUCK
(Post 5231198)
Aired up tires, run in 4th gear, maybe 5th?
Did you do a pre-modification dyno run? Let's see the dyno sheet. What did Roush Performance say? |
i have heard that the roush tune is very conservative.
i have just a roush tune on my 3.5 eco boost and make more power https://cimg7.ibsrv.net/gimg/www.f15...7486514682.jpg |
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