I bought my car about 2 months ago... Since i got it i put on the following mods...x pipe....magnaflow cat back....vortech supercharger 10 lb pulley...42lb inj..fuel pump..power pipe...and 3.73 gears... What mod should i go with next to give it a little more...Iwas thinking about doing the throttle body and upper plenum..Should i go with a 75mm and will it make any difference...This is my first mustang so i really dont know what to do now... Any help is appreciated..
What mod should i do next????
- Thread starter SLVRGTCONV
- Start date
scalder
Member
Well you can do some great burnouts or you can do some suspension mod's i.e. LCA's/UCA's, Subs etc, and put that power to the pavement....
Q's Stang
Member
open up that engine w/ some headers and finish ur exhaust...or if you got a nice pocket of money do a h/c/i swap...or do some suspension work so your stang can handle all that power to the wheels
scalder
Member
mm&ff has done a series on tb + upper plenums, the 75mm does make more power. Excuse me I just found the article, on the supercharged 4.6 the accufab 70mm tb+plenum was tops in torque and made only 1 less horsepower than the best 75mm setup(the 75mm setups made more power n/a).
accufab 70mm tb+plenum=+19hp,+17ft/lbs
accufab75mm=+18hp,+13ft/lbs
c&l75mm plenum w/accufabtb=+16hp,+11ft/lbs
trickflowplenum w/accufab75mmtb=+17hp,+13ft/lbs
dragonplenum w/acufab75mm=+20hp,+14ft/lbs
these tests were done on an engine with cams, a f.a.s.t. system, and longtube headers(no midpipe or catback), 10psi vortech t trim, ported pi heads, I dont think it used an air filter either but I could be wrong, and i think it had an electric water pump and no accessories. this engine was making over 600 hp so expect your gains to be slightly less. The trickflow piece was cheapest of the group, the accufab the best looking. You should also consider some suspension mods before the tb/plenum, especially rear control arms. I'm assuming you have had a dyno tune since you got the super charger, if not you probably need one.
accufab 70mm tb+plenum=+19hp,+17ft/lbs
accufab75mm=+18hp,+13ft/lbs
c&l75mm plenum w/accufabtb=+16hp,+11ft/lbs
trickflowplenum w/accufab75mmtb=+17hp,+13ft/lbs
dragonplenum w/acufab75mm=+20hp,+14ft/lbs
these tests were done on an engine with cams, a f.a.s.t. system, and longtube headers(no midpipe or catback), 10psi vortech t trim, ported pi heads, I dont think it used an air filter either but I could be wrong, and i think it had an electric water pump and no accessories. this engine was making over 600 hp so expect your gains to be slightly less. The trickflow piece was cheapest of the group, the accufab the best looking. You should also consider some suspension mods before the tb/plenum, especially rear control arms. I'm assuming you have had a dyno tune since you got the super charger, if not you probably need one.
