received my "new" mustang last week anticipated on spending all my budget on appearances. after driving around wanted some more power ON A BUDGET for the 347. Was hoping you guys could help steer me in the right direction, i want another 30 or so more hp and tq (would be at 390hp420tq). Its a street car with a posible future in road race. i was thinking a port job to the stock afr185's would be my best option. would i need another tune after that? or new injectors or what? basically what am i lacking to keep me from an extra 30 more hp/tq on my current setup. also i have the cai thats in the fender well, is this filter too small? seems like it to me. any suggestions would be appreciated. my set up is on my profile, if i need to write it on here let me know, this is my first post.. newby

 

what heads/cam/intake does the car have


if its already a decent 347, and you want to roadrace it one day anyway, I would spend money in weight reduction and suspension before power.

 

It is a pretty decent 347. Air flow research 185 heads, custom comp cam (not sure of the actual specs), and trick flow track heat intake, 10:1 compression(363hp390tq). The suspensions already been worked on with maximum Motorsport caster camber, subframe connectors upper lower control arms, h&r race springs and tokiko shocks. I need front and rear sway bars and stut brace.. What would be the best weight reduction? Like I said its on the street a lot and I want back seats so that's not an option, and the battery is already relocated.

 

That suspension is hardly capable of road racing. I'm guessing your brakes are stock as well, which will not survive very long during autocross. If you want more power all the time, which I don't think is a good idea with that suspension in cornering situations, slap on a supercharger.

 

PBR two caliber up front and single rear with upgraded pads and slotted rotors, with 5 lug. I don't think a supercharger is in my low budget. Maybe I should have been more specific. I don't want a race car I want a little more power and it won't be road raced a lot, would just be fun to play around on a road course once in a while and have better handling. Back to my original question what's the cheapest way to get a little more power? And is the fender well air filter somewhat small? What would you do different to the suspension ON A BUDGET

 

Ehh, without going to a torque arm and panhard/watts link the horrible 4-link rear will always limit your cornering abilities, but I'm guessing that is out of your budget range. By the way, what is your budget?

Like 302 army said, reduce weight. That will increase your acceleration, reduce braking distance, and improve handling. Best bang for your buck power wise would be a higher rear end gear ratio or nitrous.

As far as the small CAI filter... more intake tubing=more air flow resistance. If your engine bay keeps relatively cool, I would just put a large filter directly on or as close to the MAF meter as possible.

 

i really dont want to spend more than a thousand on more suspension work it needs a paint job and i really want some new wheels. it has 373 ratio, and ill go ahead and switch the intake asap. as far as weight reduction what would be the most effective. remember i still want the back seats though.

 

Kill two birds with one stone. Get lightweight wheels. That will reduce rotating mass, reduce overall weight, and reduce unsprung weight. There are countless other ways to reduce weight, hit up the search button.

 

If that 347 is only making 363HP/390FT LB there is something very basically wrong with it. IMHO it should be making close to 400HP as it is described. Check everything twice real carefully.....

 

so you think it should be 400 to the tires? that's closer to what i think it should be too. maybe the cam isn't right for the set up? i don't know the actual specs of it.