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VRX4 cam

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Old 01-08-2009, 08:42 PM
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Default VRX4 cam

Anyone with this cam have any dyno numbers with stock heads preferably M6 guys but auto guys can chime in also? I pretty much have every bolt on with the exception of a ported TB. Just trying to get a close estimate to what I'd be looking at. Plan on getting this thing on a dyno in the next month or two. Thanks for the replies.
Old 01-08-2009, 08:56 PM
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390-405 with stock heads is the norm with that cam, tuning, and all the necessary bolt ons through an M6. I've installed 2 of them and thats been the average.
Old 01-08-2009, 09:37 PM
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Thats the range I was hoping for. Thanks Damian.
Old 01-11-2009, 08:30 AM
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i have that cam and love it. pulls hard all way up.
Old 01-31-2009, 09:06 PM
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Well I went and dynoed finally. Overall was very impressed with the outcome even though my injectors maxed out. I don't have the 28.8lbers like I should, instead I ended up with 26lbers and didn't know until the day before the dyno.

Just a rundown of performance upgrades to the engine:
LS6 intake
ASP UD pulley
LT's/ true duals straights with magnaflow bullets
85mm Maf/ P&P TB/ 85mm Fast Toys lid

The car is an M6 and put down 385rwhp and 375rwtq through a 9" running out of injector. Gonna put the 28lbers back in and go see if that helps give an extra few ponies. Power just stopped at 6100rpms. Am I wrong to think that it should continue to make power atleast to around 6500rpms? I have the graph if anyone wants to see it I can load it up.
Old 02-01-2009, 04:10 PM
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im interested in that graph... im looking for something that can hit 400 cam only, so when i do get heads

228R seemed to be what i was looking for (or something TR) but i saw this cam and it seemed to be spot on what i was looking for, just haven't been able to find a graph.... Thanks
Old 02-02-2009, 03:09 PM
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Here's the graph. It shouldn't have a problem getting closer to or even a tad over 400rwhp from what I've seen and read about it. We also haven't finished the tune just yet do to the smaller injectors. The engine is out of a 2000 and whoever did it also swapped in the 26lbers so now I have to swap them back and it should be golden. Cars extremely easy to drive also. Here ya go:

Old 02-02-2009, 03:28 PM
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does it have no power under 2500, or is that just where they started the dyno... also when you get it re-dynoed ask for SAE smoothing, its a better comparison (up to you)
Old 02-02-2009, 04:06 PM
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That was where it started. When you SAE smoothing, are talking about the corrected #'s or the squiggly lines? The #'s on the sheet are corrected by the way. I didn't mention that earlier.
Old 02-02-2009, 04:48 PM
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they're corrected using STD, which gives slightly higher numbers than SAE, i meant corrected numbers... GREAT numbers for the injectors though, i think i made my choice on vengence



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