09 Challenger R/T Build- 392 VVT With Heads and Cam - Dodge Challenger Forum: Challenger & SRT8 Forums
 
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#1 (permalink) Old 05-12-2012, 10:06 AM
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09 Challenger R/T Build- 392 VVT With Heads and Cam

09 Challenger R/T Build- 392 VVT Swap
2009 RT (TA hood)
Went from 5.7 to 2011 392 Build
· 6.1 ported intake
· CNC Modern Muscle Apache heads
· Comp VVT Cam
· Comp VVT limiter
· MAHLE forged replacement pistons
· RAM clutch and billet release brg. kit
· Long tube Mopar Perf headers and Cat Back
· Modern Muscle CNC ported 87mm TB
· Mopar performance TA hood package



MMPG Mahle Custom Drop in Forged Pistons



Ram Clutch








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#2 (permalink) Old 05-12-2012, 10:53 AM
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Nice! Looks like a good gains from what a stock 392 normally does.



2009 Stone White R/T
JLT Cold Air Intake | 180 T-Stat |SRT Hood Scoops | 85mm Ported Throttle Body
SRT Headers | Magnaflow mids | Corsa Exhaust | Custom tune | Petty strut brace
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#3 (permalink) Old 05-13-2012, 05:44 AM
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Quote:
Originally Posted by Modern Muscle View Post
09 Challenger R/T Build- 392 VVT Swap
2009 RT (TA hood)
Went from 5.7 to 2011 392 Build
· 6.1 ported intake
· CNC Modern Muscle Apache heads
· Comp VVT Cam
· Comp VVT limiter
· MAHLE forged replacement pistons
· RAM clutch and billet release brg. kit
· Long tube Mopar Perf headers and Cat Back
· Modern Muscle CNC ported 87mm TB
· Mopar performance TA hood package



MMPG Mahle Custom Drop in Forged Pistons













Forged drop ins were great. Just gap the rings and install. The balance was spot on. The valve reliefs allowed us to do what we wanted with the cam install. Mahle did a great job as usual.
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#4 (permalink) Old 05-13-2012, 05:47 AM
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Quote:
Originally Posted by Modern Muscle View Post
09 Challenger R/T Build- 392 VVT Swap
2009 RT (TA hood)
Went from 5.7 to 2011 392 Build
· 6.1 ported intake
· CNC Modern Muscle Apache heads
· Comp VVT Cam
· Comp VVT limiter
· MAHLE forged replacement pistons
· RAM clutch and billet release brg. kit
· Long tube Mopar Perf headers and Cat Back
· Modern Muscle CNC ported 87mm TB
· Mopar performance TA hood package















FYI the engine shown is a 6.1 but we wanted to show off the new tools Comp is offering for the Hemi guys. The crank hub drives off the oil drive hube, sweet deal. Nice job Comp Cams.
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#5 (permalink) Old 05-13-2012, 05:50 AM
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Originally Posted by BigRobsRT View Post
Nice! Looks like a good gains from what a stock 392 normally does.
Put about 150 miles on it yesterday and no issues, no codes.

Fun to hammer up through the gears at 6500.

Probably better get some axles from Bill.
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#6 (permalink) Old 05-14-2012, 02:41 PM
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excuse my ignorance, but what happened to all the tq down low that we are so used to seeing from the 392?

looks like the tq peaks and starts leveling out at 4700rpms ??

sick numbers, but the graph appears to be out to the right as opposed to making tons of tq before 3500rpms.
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#7 (permalink) Old 05-14-2012, 04:29 PM
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Originally Posted by Litos View Post
excuse my ignorance, but what happened to all the tq down low that we are so used to seeing from the 392?

looks like the tq peaks and starts leveling out at 4700rpms ??

sick numbers, but the graph appears to be out to the right as opposed to making tons of tq before 3500rpms.
No surprise given the mods. A bigger cam and bigger ports should give you more peak horsepower while reducing low end torque.

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#8 (permalink) Old 05-15-2012, 04:48 AM
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Quote:
Originally Posted by Litos View Post
excuse my ignorance, but what happened to all the tq down low that we are so used to seeing from the 392?

looks like the tq peaks and starts leveling out at 4700rpms ??

sick numbers, but the graph appears to be out to the right as opposed to making tons of tq before 3500rpms.
The cam and head package did have an effect on those lower numbers but the one key ingredient is the 6.1 ported intake vs the split runner 392 plastic intake. We will be working on using that intake in the future.
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#9 (permalink) Old 05-19-2012, 12:40 PM
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Seems easy enough to rig up an rpm switch to use the active manifold. You could use the dyno to find the rpm where it makes the best torque and power




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#10 (permalink) Old 05-19-2012, 01:45 PM
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Originally Posted by aarcuda View Post
Seems easy enough to rig up an rpm switch to use the active manifold. You could use the dyno to find the rpm where it makes the best torque and power
Assuming that they spliced the car to make the car work with an older PCM to allow tuning, I don't know if they could use that computer to make it work. I think that using a standalone you could create a map to allow for the manifold to open at a desired rpm for better flow. That would be really cool.



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