GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

Radix w/Head & Cam Question

Thread Tools
 
Search this Thread
 
Old Jun 30, 2004 | 08:10 PM
  #11  
Mr. Sandog's Avatar
TECH Veteran
 
Joined: Mar 2004
Posts: 4,632
Likes: 2
From: Sun Diego
Default

Maybe we can find someone to get us info on the stock crank pulley diameter for the 5300 and 6000 HO Vortecs....
Reply
Old Jul 1, 2004 | 11:44 AM
  #12  
adrianmt75's Avatar
Thread Starter
Teching In
 
Joined: Jun 2004
Posts: 29
Likes: 0
From: Portage, MI
Default

Originally Posted by gearheads78
Not sure about the stock pully. My stock truck with tune shifts about 5800 at WOT so there sould not be a issue with turning the blower too high.

I asked Allen about detonation and he said with the 3" I won't have any problems. I don't have a scan tool but there has been no audible pre-ignition.
I do have the larger Radix HE so that may help also.
What is a Radix HE and what are the differences between that and the ostensible regular version? Any specs w/comparisons?
Reply
Old Jul 1, 2004 | 01:12 PM
  #13  
gearheads78's Avatar
TECH Enthusiast
iTrader: (29)
 
Joined: Aug 2003
Posts: 656
Likes: 0
From: Dallas TX
Default

Originally Posted by adrianmt75
What is a Radix HE and what are the differences between that and the ostensible regular version? Any specs w/comparisons?
All the newer kits have the larger HE (heat exchanger) I am not sure of the size difference since this is the only style I have seen in person.
Reply
Old Jul 1, 2004 | 03:40 PM
  #14  
Flem's Avatar
TECH Apprentice
 
Joined: Mar 2003
Posts: 304
Likes: 0
From: ferndale, MI
Default

I did a head cam swap when I did the radix, I netted 5.7PSI and it actually feel away as revs increased. peaked @ 3700rpm, I've since gone to a 3.25" pulley and when I put the headers on about a month and a half ago I went with a 3.0" pulley from nelson. people can't believe a truck as big a my burb can move so fast.
Reply
Old Jul 4, 2004 | 10:11 PM
  #15  
adrianmt75's Avatar
Thread Starter
Teching In
 
Joined: Jun 2004
Posts: 29
Likes: 0
From: Portage, MI
Default

Originally Posted by Flem
I did a head cam swap when I did the radix, I netted 5.7PSI and it actually feel away as revs increased. peaked @ 3700rpm, I've since gone to a 3.25" pulley and when I put the headers on about a month and a half ago I went with a 3.0" pulley from nelson. people can't believe a truck as big a my burb can move so fast.
Any specs/brands etc on your cam/head swap?
Reply
Old Jul 5, 2004 | 12:57 AM
  #16  
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,009
Likes: 0
From: Chesapeake, VA
Default

I experienced only a half pound loss in peak boost when I did my heads with my Radix. My heads are stgII TEA 6.0L heads. The cam choice is critical if you don't want to experience the loss of boost up top. Boost will actually bleed back up top and you want to minimize that. A cam specific to your setup, ie blower design, would be your best bet. My cam was designed by Futral Motorsports - sponsor of this site.

If you have the LQ4 motor, I think you should be able to do nearly 10lbs, if not 10lbs, of boost with a good tune. It took a 2.75" pulley for me to break into 10+lbs. A couple of SS's are running it with the LQ9 motor, with no problems yet.

Your stock crank pulley should be 7.75".

adrian, don't you, being a Eaton employee, have the resources for all these blower questions? Just curious.
Reply
Old Jul 6, 2004 | 11:20 PM
  #17  
adrianmt75's Avatar
Thread Starter
Teching In
 
Joined: Jun 2004
Posts: 29
Likes: 0
From: Portage, MI
Default

Originally Posted by BenKey
I experienced only a half pound loss in peak boost when I did my heads with my Radix. My heads are stgII TEA 6.0L heads. The cam choice is critical if you don't want to experience the loss of boost up top. Boost will actually bleed back up top and you want to minimize that. A cam specific to your setup, ie blower design, would be your best bet. My cam was designed by Futral Motorsports - sponsor of this site.

If you have the LQ4 motor, I think you should be able to do nearly 10lbs, if not 10lbs, of boost with a good tune. It took a 2.75" pulley for me to break into 10+lbs. A couple of SS's are running it with the LQ9 motor, with no problems yet.

Your stock crank pulley should be 7.75".

adrian, don't you, being a Eaton employee, have the resources for all these blower questions? Just curious.
Ben,

There are several divisions within Eaton. If the info/data/application experience relative to comparable configurations etc was as accessible as the combined knowledge of all the gear heads in this forum and the like I simply would not have asked.

If you look at my inquiries you'll see that they are Magnacharger Radix Application specific and reaction to comments. Referring to the Magnacharger website it appears as if the Eaton product is modified and is dependent on kit utilization. Specs, OEM application details etc. for the M112 that are readily available within Eaton are only partially applicable.

Thanks,
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Denali08
FORCED INDUCTION
12
Aug 9, 2015 04:34 PM
Jake75
INTERNAL ENGINE MODIFICATIONS
6
Aug 5, 2015 01:26 PM
USMCvet0311
INTERNAL ENGINE MODIFICATIONS
12
Aug 1, 2015 07:45 AM
bbowerman
GM Engine & Exhaust Performance
10
Jul 26, 2015 10:57 PM
WICK3DxGATA
FORCED INDUCTION
4
Jul 21, 2015 06:59 PM




All times are GMT -5. The time now is 06:55 PM.