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408 Dyno = Low Numbers

Old May 21, 2008 | 11:59 PM
  #41  
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Originally Posted by dc_justin
Peak torque occurred at 3900rpm and was right at 290ft-lbs. Torque was above 250ft-lbs from 2700rpm to 5200rpm. Above 275ft-lbs from 3700rpm to 4700rpm. Torque had fallen to 225ft-lbs at 5600rpm.

Peak hp occurred right around 5000rpm.
Doesn't that sort of scream air flow restriction? The stock intake is only good to what...5200 before it starts to crap out? I think a FAST 90mm and Long Tubes would made a nice difference and would be cheaper than new heads. Won't the STS work with the FAST 90mm? And since it's a rear mount, cant you run LTs?
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Old May 22, 2008 | 08:33 AM
  #42  
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Hello Dave
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Originally Posted by 1SlowHoe
Doesn't that sort of scream air flow restriction? The stock intake is only good to what...5200 before it starts to crap out? I think a FAST 90mm and Long Tubes would made a nice difference and would be cheaper than new heads. Won't the STS work with the FAST 90mm? And since it's a rear mount, cant you run LTs?
It's hard to say really with 8.2:1 CR being the most serious offender.
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