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Dyno'd the Radix'd truck today, these #'s good

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Old 10-24-2005, 06:09 PM
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Originally Posted by OCBC
Do you have the SLP shorty headers or Long tube?
SLP shorty headers
Old 10-24-2005, 06:11 PM
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Originally Posted by bud8fan
radix 5.3 flex fuel injectors are 60's....
When I bought my kit (used) I called magnuson and was told I did not need to upgrade injectors or use the inline fuel pump (which both came with the kit I bought, I sold them) because the flex fuel sytem was already better than non flex fuel trucks. If they are selling 60# injectors with new Flex Fuel radix kits then that is news to me. Blown Chevy?
Old 10-24-2005, 07:11 PM
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My SSR is running on 60 lb injectors, it is the LS2 which had the 32 lb (some say 43 lb) injectors stock. BlownChevy can answer your questions about fuel issues with the Radix.
Old 10-24-2005, 07:40 PM
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Originally Posted by 2005SSR6Speed
My SSR is running on 60 lb injectors, it is the LS2 which had the 32 lb (some say 43 lb) injectors stock. BlownChevy can answer your questions about fuel issues with the Radix.
So the new kit for the LS2 (of which you were the prototype, right?) will have 60 lbers? Cool.
Old 10-24-2005, 07:42 PM
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That is what I understood from BlownChevy, I am not sure if they are actually needed or whether they will be included in the LS2 kit.
Old 10-24-2005, 07:57 PM
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Originally Posted by LBSBLOWN
BTW how much HP will the 43# injectors support.
My Radix injectors are at 89% by 5500 RPM. FP has dropped to 55-56 psi(from 60) by that point. I haven't tuned for the 3.25" pulley yet(waiting for my 2 bar MAP sensor to get here). With the returnless fuel system, it looks like the supplied Radix injectors/fuel pump are already maxed out with the 3.4" pulley.
Old 10-24-2005, 08:22 PM
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Originally Posted by 1SlowHoe
When I bought my kit (used) I called magnuson and was told I did not need to upgrade injectors or use the inline fuel pump (which both came with the kit I bought, I sold them) because the flex fuel sytem was already better than non flex fuel trucks. If they are selling 60# injectors with new Flex Fuel radix kits then that is news to me. Blown Chevy?
i just put the radix on my '05 and it comes with 60# injectors for flex fuel vehicles....
Old 10-24-2005, 10:08 PM
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Hmm.... looks like we were on to something when I said I needed bigger injectors on my 04... and they called me crazy for swapping.
Old 10-24-2005, 10:19 PM
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Radix flex fuel is 39 lb not 60
Old 10-24-2005, 10:22 PM
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I just made 500 rwhp on a 6.0 with bosch 42 lb injectors and he duty cycle was 72%


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