Trick flow plenum
07-17-2007, 06:31 PM
#11
2nd Gear Member
Join Date: Jun 2004
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Posts: 455
RE: Trick flow plenum
Hey 02WhiteGTVertand cliffykthose look so cool it might be worth it just for looks alone! I polished and ported mine and it did make a nice difference. Now you are making me want to dress mine up a bit after looking @ those pics.
07-17-2007, 06:36 PM
#12
2nd Gear Member
Join Date: Nov 2006
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Posts: 284
RE: Trick flow plenum
ORIGINAL: cliffyk
Click here for Accufab's flow data (about 1/2 way down the page)--look at the numbers and then decide how you want to spend your money. [/align][/align]The Trick Flow (same as Pro-Products) flows 35 cfm less (595 vs, 628 cfm) than the Accufab at 28" water (2 inHg, more or less WOT on an n/a engine) pressure differential. This is 104 cfm better than the OEM plenum with a 70 mm TB,andalmost 70 cfm more then a 4.6L V-8 can suck in at 6500 rpm (528.5 cfmmathematical max)...[/align][/align]I made 246.2 rwHP with my mods (listed below, + 180° t-stat, + 2-1/2" tailpipes) which include the ProProducts 70 mm TB and plenum.[/align]click here for the dyno chart [/align][/align]The 1st two runs were nearly identical, with things going pig-rich after 4400 rpm of so because I had dialed in way to much added fuel at WOT (16%). The 3rd run was with the WOT added fuel set at 2%.[/align][/align]
[/align] [/align]
Click here for Accufab's flow data (about 1/2 way down the page)--look at the numbers and then decide how you want to spend your money. [/align][/align]The Trick Flow (same as Pro-Products) flows 35 cfm less (595 vs, 628 cfm) than the Accufab at 28" water (2 inHg, more or less WOT on an n/a engine) pressure differential. This is 104 cfm better than the OEM plenum with a 70 mm TB,andalmost 70 cfm more then a 4.6L V-8 can suck in at 6500 rpm (528.5 cfmmathematical max)...[/align][/align]I made 246.2 rwHP with my mods (listed below, + 180° t-stat, + 2-1/2" tailpipes) which include the ProProducts 70 mm TB and plenum.[/align]click here for the dyno chart [/align][/align]The 1st two runs were nearly identical, with things going pig-rich after 4400 rpm of so because I had dialed in way to much added fuel at WOT (16%). The 3rd run was with the WOT added fuel set at 2%.[/align][/align]
[/align] [/align]
07-17-2007, 06:55 PM
#14
3rd Gear Member
Thread Starter
Join Date: May 2007
Location:
Posts: 910
RE: Trick flow plenum
it does dress up under the hood very nicely,you can get it from Summitracing for $99 + $10 for handling. 99GTstang - yes it does whistle a bit but even my stock P&P'd plenum did that. Shaun-quit pickin on slow people [8D]
07-17-2007, 06:59 PM
#15
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: Trick flow plenum
ORIGINAL: 99gtstang
Does you make a whistle because i have the same setup
Does you make a whistle because i have the same setup
07-17-2007, 07:07 PM
#16
Underboss
Join Date: Jan 2006
Location: Helaware
Posts: 20,273
RE: Trick flow plenum
ORIGINAL: cliffyk
The 6-pack on my '69 Charger Daytona sounded like it would suck in small dogs and children...[/align]
ORIGINAL: 99gtstang
Does you make a whistle because i have the same setup
Does you make a whistle because i have the same setup
07-17-2007, 07:25 PM
#18
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: Trick flow plenum
ORIGINAL: Epinephrine186
cliffy k....where did u get ur red? did u paint it? or can u link me?
cliffy k....where did u get ur red? did u paint it? or can u link me?
07-17-2007, 07:38 PM
#19
2nd Gear Member
Join Date: Nov 2006
Location:
Posts: 284
RE: Trick flow plenum
nice....freinds got powder coater but hell if i could buy it that way it'd be easier. thanks tho....isnt it true that theirs on like a 1-2 hp difference between plenums and throttle body brands?
07-17-2007, 08:09 PM
#20
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: Trick flow plenum
ORIGINAL: Epinephrine186
<snip>....isnt it true that theirs on like a 1-2 hp difference between plenums and throttle body brands?
<snip>....isnt it true that theirs on like a 1-2 hp difference between plenums and throttle body brands?
Probably, the engine can only suck in 528 cfm at 6500 rpm and 100% volumetric efficiency (which is possible but not likely). More likely at 6000 rpm is at very best 90% to 95% VE (it's probably less), or 440 to 464 cfm. [/align][/align]So, and acccording to Accufab's flow data, all the aftermarket plenums with 70 or 75 mm TBs are flowing 500 or so cfm at 20" H2O (except the C&L which is a poor performer)--20" H2O is 1.5 inHg and about as low as you'll ever see manifold vacuum on an n/a engine, so they can all flow plenty of air to keep the engine as happy as it can be*.[/align][/align][/align]PS: Before anyone gets on my case these numbers are all based ongross approximations and generalisations--they nonetheless represent a valid overview of the situation.[/align][/align]-----------------------[/align]* - Accufab's data says the OEM TB and plenum flows 372 cfm at 20" H2O. This is about what the engine would be happy sucking in at 5000 rpm/WOT (assume 92% VE), so obviously there's room for improvement vs, the OEM setup.[/align][/align]