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from what i see from this forum alot of the guys who think they know technical shiz about building hi-po parts are spewing garbage from the 70's. 3" exhaust will probably lose more power than gain, and NEVER "port the shit" out of your heads. velocity is more important than cfm (volume), unless your building a top fuel dragster (sarcasm, i dont know how a top fuel dragster is flowed). im pretty sure 200 crank hp wouldnt be too expensive to be had out of a KA but, until i get mounds of money to blow on my rusted out alti, im just a bench racer like the rest of em. anywho... my "cheap" build would include
1. rebuild (gasket, bearings, sohc pistons) kit = $350
2. head work: i have access to a flow bench, and no im not "hogging out" anything, id probably end up adding material. with some combustion chamber massaging id hope to run about 10.8:1 = $60 + timeeeee
3. arp head bolt kit = $140
4. ebay intake, ground kit, header = $180
5. cams = $300
6. Excessive intake = $450
6. cpu + dyno time $700
^youre right on the velocity being important. however, it has been proven multiple times that the bigger the exhaust you throw on the more power you will make. 3" is the best. you may lose some part throttle response, but you will gain power throughout the powerband
__________________ 1994 Altima GXE - Auto
Sold 9-15-07
2003 Toyota Echo 2dr - Auto
Stock as stock can get
43.5mpg average
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Originally Posted by Asleep
parades are really popular in the gay community.
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No dark, I don't think you lose throttle responce at all. I never heard of such in all the searches I ave done. Now, you might lose some in comparison to a 2.5 setup, but compared to stock, I Doubt it.
I have management, and a cam would cost me around $280 for the replacement.
I'm actually considering boost after this is done, most of the parts can be used in addition to a Turbo (Minus pistons, and the header)
__________________ KA24DE-K
"The K is for kaizen, which translates to "improvement".
yesterdeay me and my friend were racing 90s integra , the kid had a 200 $ set up in it (it didnt look bad and it actually gave him some power). What I am saying is that turbo is easier to put in then actually rebuild the engine
saying going to 3" exhaust is going to give you power is also a "stupid overgeneraliztion." tube size really doesnt have much to do with a good exhaust. i guarantee the best exhaust for most of our engines (non-uber turbocharged) would be less than 3". backpressure is just a coined term which has nothing to do with how much power an exhaust makes. velocity and volume of exhaust gasses are the main factors. our cars only put out a certain volume of exhaust gas and if you can make it move as fast as possible without hindering the maximum output (volume) of exhaust gas, thats a damn good exhaust. the velocity creates a low pressure effect every time the exhaust valve opens. alot of the time if you just increase velocity you can cover up for a lack of volume.
blah blah. its not as easy as putting on a 3" pipe.
For those of you who aren't n/a or FI and think 3inch exhaust is gonna give you more power
Wait...so what does that leave?
Oh and to sum up the ENTIRE debate which by the way, is about whether or not a 3 inch exhaust will make power on a KA24DE (not any other engine you dumbass's, we are only talking about the KA here), i can humbly and politely ask iceman to reiterate by showing us the dyno slips.
Then i'd like to see all the other dyno slips you guys have that show a power DECREASE from a larger 3 inch exhaust on a KA. Oh wait, there are none.
Debate over....PERIOD!
__________________
Quote:
AngryBot: Well when two admins fall deeply in love.....they can't physically have children so they adopt one and that's how a moderator is made. Pulski: Just because you have a less slow car than some here, doesn't make you any less of an idiot.
I couldn't care less about the two or three PEAK horsepower you gain off a 3-inch over a 2.5" but your engine response IS going to suffer. And when I say response will suffer I don't mean while you've got your right foot to the floor on a dyno or at the 1320 because the truth is you probably won't notice it then, but you sure as heaven will notice it when you lift-throttle, downshift, or throttle feather any of the rest of the time you're driving and THAT SUCKS. Might as well just convert to a drive-by-wire too if you're interested in that type of response loss.
meh, go argue your 3" is better to someone who designs racing exhausts for a living and see where it gets ya. maybe your 3" exhaust dynoed the highest, but i'm willing to bet the farm its far from the optimal size.
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