Well all of us are constantly looking for more power and torque. Most of us can only afford I/H/E and thats about as far as we get.We get maybe12-25hp at the most out of those three upgrades. Ive been searching a little and have found out that weight reduction is really effective in adding amoderate amount of horsepower(depending on how much weight you remove). But first how do you find out how muchweight to remove to gain HP? Here are the factory weights of4cyl. 6th gen Accords..

Just take the weight of your car and divide by the amount of HP you have(overall weight/HP).. I will be using the auto EX coupe as the example. Weight_ 3048/ HP(roughly, depending on mods)_155==19.7lbs./hp. So for every 19.7lbs removed, 1hp will be gained!!!! Take into account that 1 gallon of gas weighs about 8lbs. So 16 gallons of gas weighs 128lbs. If you only have 1 gallon in the tank opposed to 16, you gain 6-7hp.

Here are some things you can remove to reduce weight. The poundages are all rough estimates but somewhat close. Take into account that removing most of this stuff isnt recommended for everyday driving and will make your car look really ghetto. But if you want HP for free then you gotta sacrifice something.These #'s are what weight is reduced by removing or replacing(if noted)items..

Rear seats_25lbs
Rear seat belts(no seats, dont need seatbelts)_5lbs
Front passenger seat_30-40lbs
Replace drivers seat w/ lighter one_up to 20lbs
Floor mats_5lbs
Carpet(and capet lining underneath)_25lbs
Sound deadening(Have to scrape off floorboard)_up to 12lbs
Center console_4lbs
Glove box_3lbs
Door and rear speakers_6lbs
Headliner, sunvisors_5lbs
Spare tire, jack, tools_30lbs
Trunk carpet_8lbs
Replace hood w/ CF or FG_up to 50lbs
Replace trunk w/ CF or FG_up to 40lbs
Replace fenders w/ CF or FG_up to 20lbs
Replace heavy stock exhaust_15lbs
Lightweight Flywheel_8lbs
Interior panels_up to 30lbs
Air conditioning(haha)_40lbs
Replace stock wheels w/ lightweight_up to 35lbs
Door panels_15lbs.
Replace battery w/ lightweight one_up to 15lbs
Excess bolts, brackets, etc_8lbs

Total= 464lbs removed

464/19.7= 23.56HP gained

This process will also improve yourgas mileage as well.There ya go... If you plan on building a N/A Accord for the track, street, or whatever else, this extra HP can be helpful. And hey, if your planning to race somebody soon, justtake some stuff out and keep your gas tank at 1/4 or less, and you'll have even better chances of winning...

 

That's interesting, but it's overdoing it in my opinion. Good write-up!

 

i have removed a good portion of my interior already

and for the record you dont actually "gain" hp, its not like the engine makes more power, you just get a better hp/weight ratio.

and your estimates are a little high

unless your hood weighs 70lbs

 

dont forget the stock intake if youve done IHE. That thing isnt exactly light.

 

I said rough estimates because I dont know exact weights of all this stuff, do you? It will "feel" like you gained HPbecause lighter=faster was what I was getting at[>:]...

 

What about the coupe curb weights? Also, are these weights including a full tank of gas and driver or just the car?

 

The coupes are listed right after the sedans in the list. You must of not seen em. I'm not sure if the weight includes full tank and driver or not.... I would guess no

 

May be a good reason to lose weight. Ha. No really, that's pretty good. Have you ever seen the post(may have been on another forum) about a team taking all the doors, panels, trunk, hood, and everything else that doesn't help the car go? It looked terrible but was pretty quick compared to how it used to be.

 

great post! very interesting! i asked yesterdayin one thread (which i forgot which one was it)about that...

Thanxs!

 

I'll pass