How much HP is this engine!
01-04-2009, 07:12 AM
#1
Thread Starter
Join Date: Jan 2009
Location: tenn
Posts: 8
How much HP is this engine!
Hey Guys i am new to this forum and i am new to mustangs, i have a 99 4.6 and it has a aluminum block with 10 and half to 1 compression and ported and polished heads, and polished manifold, headers and flow master exhaust,and running a 373 gear pos.Quick throw shifter, Would anybody know about how much HP this motor would have, and what parts could be added to raise the HP THANKS!
01-04-2009, 09:12 AM
#5
5th Gear Member
Join Date: Mar 2008
Location: NJ
Posts: 2,312
i make close to 300 to the wheels except i have cams, injectors and im dyno tuned... My dyno numbers on my sig are with a 5% power loss to the wheels because apparently my breaks were dragging on the dyno and its only an 87 conservative tune. As for parts to be added i would say cams? Why would someone do all that work pulling the heads off and porting and polishing them and not putting cams in? Are you absolutly sure its even p&p? Anyways after cams i would go with a good tb and some bigger injectors... Or Just get a bigger tb and get a supercharger just be careful with your compression with a supercharger... I would watch out if you spray it with that compression too...
01-04-2009, 11:25 AM
#6
3rd Gear Member
Join Date: Aug 2008
Location: Oklahoma
Posts: 912
Hey Guys i am new to this forum and i am new to mustangs, i have a 99 4.6 and it has a aluminum block with 10 and half to 1 compression and ported and polished heads, and polished manifold, headers and flow master exhaust,and running a 373 gear pos.Quick throw shifter, Would anybody know about how much HP this motor would have, and what parts could be added to raise the HP THANKS!
Ported manifold? I assume this is an aftermarket manifold.
01-04-2009, 01:22 PM
#8
3rd Gear Member
Join Date: Nov 2006
Location: Chicago
Posts: 527
hmm...you buy from a dealer or a owner? if an owner i bet they got it dyno tuned... if so just ask them. if a dealer you could be out of luck as far as getting good numbers or to much more info about the work done to it. and we will need more info about whats been done to give you a good number if you cant get that info your best bet might be to go to a performance shop and ask them whats going on under the hood.
01-05-2009, 08:33 AM
#10
Thread Starter
Join Date: Jan 2009
Location: tenn
Posts: 8
I do know it is P&P heads and the manifold is polished on the inside and it is a afther market, brand name tyfune cost $1800.The guy didnt know much about it he just had it about a month......A far as the cams go they sound stock I am going to change them does anyone know what would a good cam for this set up?The pistons are flat top no valve reliefs.I would like to run a turbo but is it to much compression?I didnt really didnt want to do nitirous, I want bolt on power. If i change injectors what kind should i use?