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4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

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Old 08-22-2014, 04:57 PM   #1
Noctaire

 
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Default Top rwhp for the 4.6?

I'll be starting engine and performance mods on my '02 GT this autumn. First thing out the gate will be a new exhaust from the headers back, followed shortly thereafter by updating the intake (CAI, intake throttle/plenum). Just some basic stuff.

As I look at this motor, though, it seems like there is an upper boundary for what it can really do without replacing the motor. What's the top end for your build-out?
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Old 08-23-2014, 12:03 AM   #2
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people say 450rwhp. Use the search to find out more info.
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Old 08-23-2014, 06:29 AM   #3
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400-420 is about the limit, people say 450 alot but to put thing in perspective CobraFrenzy jumped from 420rwhp to 450rwhp and it lasted for about 6 track passes then blew up doing a street burnout. Car had a tip top dyno tune as well.
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Old 08-24-2014, 05:15 PM   #4
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Quote:
Originally Posted by uberstang1 View Post
400-420 is about the limit, people say 450 alot but to put thing in perspective CobraFrenzy jumped from 420rwhp to 450rwhp and it lasted for about 6 track passes then blew up doing a street burnout. Car had a tip top dyno tune as well.
Yikes. I just want to be around 400 to the wheels. I'm at 384 right now.
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Old 08-26-2014, 07:15 AM   #5
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Yikes. I just want to be around 400 to the wheels. I'm at 384 right now.
16 more hp won't blow your car to bits
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Old 08-30-2014, 09:16 AM   #6
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16 more hp won't blow your car to bits
If it did, I'd blame the tuner. ..but then again, I usually blame the tuner for everything.
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Old 09-02-2014, 08:05 PM   #7
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How many miles are on your car? I wouldn't go no higher than 425 to the wheels.
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Old 09-27-2014, 06:39 PM   #8
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With a good tune and a properly matched setup, I'd say stick to 400 at the wheels max. Easiest and most pain-free way to get there would be to just throw a blower on it and call it a day. At 8lbs you'll be around 350 - 400 with great driveability.
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Old 09-29-2014, 08:18 PM   #9
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You can also find a used centrigual setup for a pretty fair price.
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Old 09-29-2014, 08:18 PM
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