PCM ZR409 vs. ZR450
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=22242
Printed Date: September-27-2024 at 12:47pm
Topic: PCM ZR409 vs. ZR450
Posted By: Bri892001
Subject: PCM ZR409 vs. ZR450
Date Posted: June-23-2011 at 2:52pm
I follow Chris Parrish on Twitter. The other day he mentioned something about the 450 being a great engine etc., I guess they were testing it.
I assumed it was the new supercharged engine they were talking about in a previous thread, but it's not. That one is a 550.
It looks like the ZR450 is nearly identical to the ZR409 on the exterior. The displacement, 364 cu, is the same too.
I did notice however, that the ZR409 advertises itself as being able to run on standard octane. The ZR450 doesn't make any mention of octane, so I assume by omission, that it needs higher.
Is the 450 a re-tuned 409 essentially?
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Replies:
Posted By: TRBenj
Date Posted: June-23-2011 at 3:00pm
Youre correct- both the ZR (409 and 450) engines are 6.0L based. The 450 has a new cam (specific to PCM, so Im told) and retuned ECU.
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Posted By: wakeboardin2k4
Date Posted: June-23-2011 at 3:21pm
Cam specs tim?
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"I'm planning to bring my girl that rides on a trailer with me and leave my girl that complains about camping at home"
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Posted By: wakeboardin2k4
Date Posted: June-23-2011 at 3:25pm
And wtf would a consumer need more than 409 HP let alone 550!
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"I'm planning to bring my girl that rides on a trailer with me and leave my girl that complains about camping at home"
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Posted By: TRBenj
Date Posted: June-23-2011 at 3:26pm
PCM Proprietary... dont expect those numbers to become public knowledge anytime soon.
More hp = better... you've driven Joe's boat!
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Posted By: Bri892001
Date Posted: June-23-2011 at 4:21pm
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I noticed they managed to crank up the Pro-sport to 303 hp as well. They call it the HO303 now with the same displacement as before. That's pretty impressive. I wonder if they were gunning to get 305hp out of it to keep the hp and displacement the same.
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