Trans am vs. full bolt on Mach 1
11-02-2012, 11:37 AM
#21
11-02-2012, 11:42 AM
#23
10 Second Club
iTrader: (8)
....lmao
11-02-2012, 11:44 AM
#25
Somehow i missed those mods. In that case, nvm.
And ive still never seen a flowmaster not be a restriction. In every size they seem to flow a solid 150 cfm less then any other chambered mufflers. There just junk period.
Flowmasters are not bad in it's proper applications. The ls fireing order is different and don't work well for a flowmaster on ls engines. The car racing is a f-body so I said these cars. I have changed out a flowmaster to anoth aftermarket muffler and noticed a seat of the pants difference with other wise stock exhaust. You could even hear the difference, you are familiar with that ....lmao
....lmaoAnd ive still never seen a flowmaster not be a restriction. In every size they seem to flow a solid 150 cfm less then any other chambered mufflers. There just junk period.
11-02-2012, 01:51 PM
#32
Staging Lane
I have. Me and my brother got my mother to order one for her stock '90 IROC 5.7L. We dyno'd it at 204rwhp then rush installed it, then matched IAT's and coolant temp to first run and ran it again. 239rwhp for a 35rwhp gain! We where both stunned by the gains. Just to double check, we threw his 5.0 IROC on the dyno right after that to see if it was a dyno issue but his SLP T-ram intake, K&N CAI, SLP headers, SLP cat'd Y, and SLPcatback IROC still only put down 220-sumthing rwhp. He was pissed. I proved the point by whooping his *** with my moms car on the ride home.
11-02-2012, 02:57 PM
#35
Teching In
Good kill.. 
11-02-2012, 03:41 PM
#37
I don't buy the fm muffler argument at near stock power levels. my car went consistent 109 and a couple spinning 111s with a lid and fm 80 only. no tune and stock everything. 2200' da. I highly doubt even an open y at that point would've been faster. I replaced it with a 10 series. it's too loud. the car sounded great with the headers and ory thru the 80 tho.
I want to run a Mach
I want to run a Mach
11-02-2012, 04:06 PM
#39
Teching In
Join Date: Nov 2010
Location: North Carolina
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
I don't buy the fm muffler argument at near stock power levels. my car went consistent 109 and a couple spinning 111s with a lid and fm 80 only. no tune and stock everything. 2200' da. I highly doubt even an open y at that point would've been faster. I replaced it with a 10 series. it's too loud. the car sounded great with the headers and ory thru the 80 tho.
I want to run a Mach
I want to run a Mach
If so, I am up for a run..
