Remove the Discs!
#101
Mach 1 Member
Join Date: January 14, 2011
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I would recommend drilling the original orifice plate hole in the butterfly valves (5/16") - that way you get factory sidepipe sound when the valves are closed (or you can drill it out a little bigger if you want it a little louder), and full sound level when the valves are wide open.
Maybe Ford Racing can incorporate that into their part since it is a Boss-specific item.
Maybe Ford Racing can incorporate that into their part since it is a Boss-specific item.
#102
Don't know if this has already been mentioned or even tested yet, but I removed my discs tonight while the car was on the dyno and it was good for 4 extra rwhp. Went from bone stock cold run for 385 to 389.76 just from removing the discs! And it sounds beastly!! Best free mod ever!!
#103
Cobra Member
Don't know if this has already been mentioned or even tested yet, but I removed my discs tonight while the car was on the dyno and it was good for 4 extra rwhp. Went from bone stock cold run for 385 to 389.76 just from removing the discs! And it sounds beastly!! Best free mod ever!!
Great News--->
#104
Bullitt Member
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Don't know if this has already been mentioned or even tested yet, but I removed my discs tonight while the car was on the dyno and it was good for 4 extra rwhp. Went from bone stock cold run for 385 to 389.76 just from removing the discs! And it sounds beastly!! Best free mod ever!!
Last edited by MJockey; 4/16/11 at 07:00 AM.
#105
Tasca Super Boss 429 Member
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Don't know if this has already been mentioned or even tested yet, but I removed my discs tonight while the car was on the dyno and it was good for 4 extra rwhp. Went from bone stock cold run for 385 to 389.76 just from removing the discs! And it sounds beastly!! Best free mod ever!!
Last edited by 5 DOT 0; 4/16/11 at 07:46 AM.
#106
Shelby GT350 Member
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Thanks for the info black_bullitt.
#107
Shelby GT350 Member
Join Date: November 20, 2010
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Don't know if this has already been mentioned or even tested yet, but I removed my discs tonight while the car was on the dyno and it was good for 4 extra rwhp. Went from bone stock cold run for 385 to 389.76 just from removing the discs! And it sounds beastly!! Best free mod ever!!
#108
POST THE GRAPHS HOLY CRAP HOW IS THIS EVEN NECESSARY TO ASK!?!?
#110
"I think some of us would like to view the results"
#113
Haha, I have the graph, I'll post as soon as I get on the computer. (posting from iPhone/iPad since last night). I also have video of the two pulls for sound comparison. We didn't hook up all the sensors though, so the graph doesn't have rpm readings or any of that, we simply pulled the car on the rollers while a buddy was swapping intakes for his dyno-tuning session and got in two quick pulls.
#114
Here's the chart. Again, we didn't hook up any sensors, so unfortunately, no RPM readings. This was a pair of 5th gear pulls.