Help with mods that actually give HP gains??

[Wishmaster]

Hello all,
Just wondering... as I'm a fairly new owner of a 2002 P5 (couple months now)... I have been all over these forums looking at ways of adding a few extra horsepower... things like Catbacks, CAI, Short Rams, Headers etc. But I keep coming across people who say that they don't actually get any gains from these mods and they end up being just for show and sound.

Does anyone disagree with this?? Once you've done your mods did you gain any HP?? And do you have proof, like dyno runs or is it all in your head. Just wondering because I don't want to spend the cash and time if there are no actual gains. Thanks!

 

[DeadGeneration]

You can gain about 45 horsepower pretty easily with bolt ons. You just have to pick the quality products. K&N will get you more power than EBay. Exhaust is the same way. Best way is to find a person on the forums (Redneck) who has an N/A car and find out what mods he has. Ect.

 

[DeadGeneration]

Also, most products really are just for noise and show. To confirm what you said. A quality header will net you a good amount of power, but you will have to deal with the noise. All the modifications have trade offs. Happy modding.

 

[jeg0024]

Header, cat-back and CAI will result in noticable gains, no need for a dyno really. Then its next step would be cam gears and pullies and the such. The right mods, with supporting mods of course, will give you HP gains. No I dont have a dyno to prove it, but I do have my slips from the 1/4 mile

 

[jeg0024]

Also, most products really are just for noise and show. To confirm what you said. A quality header will net you a good amount of power, but you will have to deal with the noise. All the modifications have trade offs. Happy modding.

Like I said though, I CAI alone will just be noise. A header alone will help a bit but mostly be noise. A CAI paired with a header and cat-back will open up the motor on both ends and then the full potential of each will be avalible. And yes, more performance may mean more noise, its a trade off.

 

[shane02pro5]

I/H/E might get you 15hp but I think the most N/A power made is like 140 to the wheels. There is one college guy that has a project car with EMS cams hi compression pistons cam gears and pretty much everthing you can do and putting down almost 200hp but that a whole lot of money probably 2x what a turbo would cost.

Turbo is the only real power adder for these motors!!

Hiboost FTW 260+/- torque

(burnout)

 

[jeg0024]

I/H/E might get you 15hp but I think the most N/A power made is like 140 to the wheels. There is one college guy that has a project car with EMS cams hi compression pistons cam gears and pretty much everthing you can do and putting down almost 200hp but that a whole lot of money probably 2x what a turbo would cost.

Turbo is the only real power adder for these motors!!

Hiboost FTW 260+/- torque

(burnout)

+1

 

[ProtoType5]

The gains off mods are definite and proven....Piece by piece they are small and sometimes insignificant, but combined together they make real and noticable improvements in power and handling. As far as N/A goes...Intake alone= no real gains, but add that into a total Intake, Header, Exhaust combo, and it does make a real difference. Handling is more important in my opinion, but you need a little more power to enjoy it....

The N/A list in a non sensical order of cost vs. difficulty vs. benefits....

Header
MP3 ECU
Cat-Back
Mid-Pipe
Upgraded Camshafts
Intake
Lightweight Crank Pully
Flywheel

Redneck has done most of the bolt on mods...outside the engine block, and runs around 120 to the wheels...which is noticable...

 

[rednecks_r_us]

Wow! I didn't know so many people actually paid attention to my car.

I'm flattered. Thanks

Anyway, on topic.

If y ou are looking for power the best way to get it is a turbo.

but being a rebel I wanted to stay N/A. Twilightprotege is the man when it comes to N/A horsepower. I look up to his work.

The stock P5 is on average around 95 wheel horse power.

I have a INJEN CAI, NOLOGY plug wires, Ractive header that has been ceramic coated by jet-hot, MAM highflow catted midpipe, Magnaflow cat back exhaust, Fidanza light weight flywheel, light weight 5ZIGEN rims and a MP3 ECU.

With all that I'm at 118.38 wheel horse power.

118
-95
____
23 WHP gain.


Any math majors on here?

If 95 WHP = 130 crank HP. What is the crank HP of 118.38?

 

[thrasher]

You can gain about 45 horsepower pretty easily with bolt ons. You just have to pick the quality products. K&N will get you more power than EBay. Exhaust is the same way. Best way is to find a person on the forums (Redneck) who has an N/A car and find out what mods he has. Ect.

45 horse? You're kidding yourself. There is no way you can get 50% more power with bolt-ons. Even if it does say K&N on the sticker.

(Everyone knows that stickers only add HP to a Honda...)

 

[Wishmaster]

Thanks guys for all the advice... and i don't mind some noise, I'd like some growl to go along with my mods. I'll probably stick with the simple mods like CAI, header and catback... I guess I could search around the forum but anyone have any advice on which header and catback give good gains but don't sound too loud... my wife has to drive this car daily to work (elementary school teacher!), she doesn't mind some growl and feedback but again not too much... any advice??

 

[jomoyo069]

wat times do u run in the 1/4 jeg and redneck?

 

[ProtoType5]

K&N or AEM intake...Cold or Short whatever floats yur boat
Thunder Header....Cheap and Well made
Racing Beat Cat-Back...Probably the quietest...

I ran the stock exhaust with the K&N/OBX header/MAM High-flow midpipe for a while and didn't really notice much gain switching the cat-back..

 

[jeg0024]

wat times do u run in the 1/4 jeg and redneck?

...With my AT...17.1sec@80MPH last time out, and thats without weight redux. Not all that much to brag about but considering that a stock AT runs around a 21sec...Its fine with me.

 

[JOMO]

When I get my next protege5/protege ( week or two hopefully)Im doing the same as last time Na wise. Intake,obx header, headerback exhaust. Very noticeable gains with the header back exhaust compaired to the regular catback. I'll go with the protege garage IM also this time though. Dont know about the mp3 ecu, want to stick with regular gas this time around.

 

[DeadGeneration]

45 horse? You're kidding yourself. There is no way you can get 50% more power with bolt-ons. Even if it does say K&N on the sticker.

(Everyone knows that stickers only add HP to a Honda...)

No one believes me. Evar.

http://www.mazdas247.com/forum/showpost.php?p=3055679&postcount=33

 

[ctt 1982]

45 extra horses is definitely obtainable, just not easily.

 

[ProtoType5]

MP3 ECU is a great gain...smooth acceleration and a nice bump up in overall power...Just $45.00 tanks are getting really hard to live with...

 

[FunkyBuddha]

all my mods are in my sig...116whp/120tq

I haven't dyno'd with cam gears set to -3 and the new axle back.

 

[protojason]

161.99 crank horsepower by my math. (not a math major though, figure it's just ratios)

95 118.38
130 = x
95x = 15389.4

x= 161.99

never bragged about my math though...

Jason

Wow! I didn't know so many people actually paid attention to my car.

I'm flattered. Thanks

Anyway, on topic.

If y ou are looking for power the best way to get it is a turbo.

but being a rebel I wanted to stay N/A. Twilightprotege is the man when it comes to N/A horsepower. I look up to his work.

The stock P5 is on average around 95 wheel horse power.

I have a INJEN CAI, NOLOGY plug wires, Ractive header that has been ceramic coated by jet-hot, MAM highflow catted midpipe, Magnaflow cat back exhaust, Fidanza light weight flywheel, light weight 5ZIGEN rims and a MP3 ECU.

With all that I'm at 118.38 wheel horse power.

118
-95
____
23 WHP gain.


Any math majors on here?

If 95 WHP = 130 crank HP. What is the crank HP of 118.38?