if any one wants free horse power and has the time to do it this is how its done take your intake manifold and bore it out each inch is 1 horse power you can get up to 15 horses for free but it depends how big you intake manifold is trust me it makes a differance

you got any Q hit me back iight

 

OOOOOKay. If you bored it out an inch there would be nothing left of it.

 

? what.

 

i would suggest a professional port and polish first of all....and second, if u bored it out 1", ur manifold would prolly be very very thin and prolly a unsafe...

 

How about 15 inches???
I think he means mm instead of inches, but then you would still need your t/b port matching to the manifold and they can only be done a few mm before the metal becomes to thin.

 

LOL, i'm sure you can take a foot and a half off your IM. If there was a trick to making easy HP, the manufactures would already be doing it b/c it would help thier sales. And it isn't free b/c you would have to pay a machine shop to bore you IM for you.

 

well, you're not suppose to do that unless you get your head bored out to. otherwise you are going to mess up the air/fuel mixture, unless you feed more fuel. i'm sure it would do a difference but not as good as it should be. you can just bore your exhaust side of your head to the same size as your headers.

 

how do you figure?

 

 

Port matching isn't a secret, "street theory racing". Niether is extrude honing.