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Why am i not getting much whp?

 
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Old 10-10-2009, 12:08 AM
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Why am i not getting much whp?

I wanted to start a fresh new thread. I finally got my engine back and my car has been tuned and im only getting 182.1 whp. I want to know why im not hitting over 200. Here is what I have:

-Skunk 2 mega power full cat back exhaust
-Megan racing header
-Aem cold air intake
-Skunk2 Pro series cam gears
-Skunk2 Pro series camshafts
-Skunk2 Valves
-Skunk2 Titanium retainers
-Skunk2 Valve springs
-Mahle forged pistons 11.5 to 1 compression
-B&M fuel pressure regulator
-Hondata s300
-NGK BKR7E Spark plugs

My car has been tuned properly. Now the reason im a little pissed is becuase when my engine was toast, I was putting out 162whp. Also my buddy who has the same car, has the same header and exhaust and has a full cat back, puts out 186.7 whp. Even with all my other engine mods im putting out less then his basically stock motor. anyone have any ideas why im losing HP?
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Old 10-10-2009, 03:00 AM
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Re: Why am i not getting much whp?

do you by any chance still have the ATTS unit in function ?

It takes off lots of ponies.

if you are open diff however, I think you should score over 200 whp
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Old 10-10-2009, 11:48 AM
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Re: Why am i not getting much whp?

My car is the base model not the SH. 2001 honda prelude base model. This is why i was thinking it was my cat that it clogged. but i just cant justify it being clogged enough to be reduces that much power.
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Old 10-10-2009, 12:07 PM
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u need at least 2.5 in ch exaust and ditch the header

i had the same problem with my build

get a tri y replica header

ebay got them for 200 bux
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Old 10-10-2009, 12:39 PM
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Re: Why am i not getting much whp?

random 4 word posts ftw. and hmmm.... that sucks dude. did your tuner by any chance just put it on a safe tune instead of a balls out tune? cause that would def do it to ya
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Old 10-10-2009, 01:06 PM
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Re: Why am i not getting much whp?

Quote:
Originally Posted by vtec fever View Post
ebay got them for 200 bux
dude shut up about ur header...u say it in every thread
and
why are u posting 4 Fluckin times instead of editing u douche....dont muck up the thread to get ur posts up.....u wont last long around here doin that sh*t....

if u post , post something that is gonna help the guy not bullSh*T



i think u should check the cat, a clogged cat will dramaticly reduce hp

also look into ur tuning like upsluder said

BTW what is this a H22? u never said...
a megan header is not a good choice tho considering u have cams and what not....u should look into a better header
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Last edited by EvilBird; 10-10-2009 at 01:44 PM.
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Old 10-10-2009, 01:49 PM
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Re: Why am i not getting much whp?

Yeah, if you just rebuilt the motor it was probably put on a safe tune for a breakin period. You dont want to beat on it right away until all the parts are broken in. Also, you should get a cat-delete pipe to solve your clogged cat problem. Go back to the tuner and ask him why exactly you are putting out such little power on a semi race build. Do you still have your EGR valve? I hear that can cause some problems with lossing valuable power.




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Old 10-10-2009, 01:57 PM
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Re: Why am i not getting much whp?

Quote:
Originally Posted by LudeKonduct59 View Post
Yeah, if you just rebuilt the motor it was probably put on a safe tune for a breakin period. You dont want to beat on it right away until all the parts are broken in. Also, you should get a cat-delete pipe to solve your clogged cat problem. Go back to the tuner and ask him why exactly you are putting out such little power on a semi race build. Do you still have your EGR valve? I hear that can cause some problems with lossing valuable power.




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well he could get a high flow cat to stay legal..and i dont think hes beatin on it hes on the dyno tuning it an thats what its laying down....
still ask ur tunner how crazy/safe the tune is
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Old 10-10-2009, 03:51 PM
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Re: Why am i not getting much whp?

Quote:
Originally Posted by coachroy View Post
I wanted to start a fresh new thread. I finally got my engine back and my car has been tuned and im only getting 182.1 whp. I want to know why im not hitting over 200. Here is what I have:

-Skunk 2 mega power full cat back exhaust
-Megan racing header
-Aem cold air intake
-Skunk2 Pro series cam gears
-Skunk2 Pro series camshafts
-Skunk2 Valves
-Skunk2 Titanium retainers
-Skunk2 Valve springs
-Mahle forged pistons 11.5 to 1 compression
-B&M fuel pressure regulator
-Hondata s300
-NGK BKR7E Spark plugs

My car has been tuned properly. Now the reason im a little pissed is becuase when my engine was toast, I was putting out 162whp. Also my buddy who has the same car, has the same header and exhaust and has a full cat back, puts out 186.7 whp. Even with all my other engine mods im putting out less then his basically stock motor. anyone have any ideas why im losing HP?
Few things here...

AEM makes an intake called the V2. Although its not a cold air intake, it has shown the best results over and over again for H22's. 98Vtec (very knowledgable prelude tuner) made a thread on it in Honda-Tech. V2 is the best way to go intake wise.

Megan race header says to me that you cheaped out on exhaust. If your looking to make real power your going to have to spend some real $$$$. RMF or SMSP are really your only (good) options as far as a header is concerned. I would also recommend you go with 3" piping. Although it may sound a little raspier, you can go to an exhaust shop and have them put in resonators to quiet it down.

s300 is s300. End of story. I can't see a better option there. and no mistake was made with skunk2 cams valves springs and retainers.

And I would also say your tuner could have pulled a few more horsepower out of your motor. But remember numbers aren't everything. Its how your car performs. 98vtec has 214 whp and is running faster times than 300whp ludes. Was your lude street tuned or just dyno tuned?
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Old 10-10-2009, 05:25 PM
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Re: Why am i not getting much whp?

Quote:
Originally Posted by Smok3y View Post
Few things here...

AEM makes an intake called the V2. Although its not a cold air intake, it has shown the best results over and over again for H22's. 98Vtec (very knowledgable prelude tuner) made a thread on it in Honda-Tech. V2 is the best way to go intake wise.

Megan race header says to me that you cheaped out on exhaust. If your looking to make real power your going to have to spend some real $$$$. RMF or SMSP are really your only (good) options as far as a header is concerned. I would also recommend you go with 3" piping. Although it may sound a little raspier, you can go to an exhaust shop and have them put in resonators to quiet it down.

s300 is s300. End of story. I can't see a better option there. and no mistake was made with skunk2 cams valves springs and retainers.

And I would also say your tuner could have pulled a few more horsepower out of your motor. But remember numbers aren't everything. Its how your car performs. 98vtec has 214 whp and is running faster times than 300whp ludes. Was your lude street tuned or just dyno tuned?

eh, short rams are a waste of money. The v2 made .X more hp than stock. Its louder than stock thats about it. He has the best intake as it stands right now as long as the vtec is tuned properly.

the OP needs to post a dyno chart because talking about numbers is literally pointless. The header and exhaust setup isn't helping you. Was a valve job done when the valves were installed? who did the machine work for the pistons? who tuned the s300? Which pro series cams are you using? It also doesnt help that you have a stock throttle body and a stock intake manifold.
what are the gears setup at? Where they degreed before install?

post a chart, numbers dont tell me anything.
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Old 10-10-2009, 08:25 PM
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Quote:
Originally Posted by chuckbret View Post
do you by any chance still have the ATTS unit in function ?

It takes off lots of ponies.

if you are open diff however, I think you should score over 200 whp
The ATTS has nothing to do with losing horsepower, it distributes power to the wheels cornering differently. The only thing about ATTS is that you are limited to how much power you can make, ATTS is nonfunctional after you reach 250whp, the only thing that makes it harder to make power i guess u could say is that the car is slightly heavier because of ATTS and the unit itself only handles so much power.

if i were u dude i would boost, and get a different header because megan is cheap ****, you gotta at least speand over 6 or 7 hundred to see a slight difference from a header. the inlet size has to be different to see a difference and with all that work done u wont have to worry about losing back pressure for a slightly bigger inlet size header.

Quote:
Originally Posted by Smok3y View Post
Few things here...

AEM makes an intake called the V2. Although its not a cold air intake, it has shown the best results over and over again for H22's. 98Vtec (very knowledgable prelude tuner) made a thread on it in Honda-Tech. V2 is the best way to go intake wise.

Megan race header says to me that you cheaped out on exhaust. If your looking to make real power your going to have to spend some real $$$$. RMF or SMSP are really your only (good) options as far as a header is concerned. I would also recommend you go with 3" piping. Although it may sound a little raspier, you can go to an exhaust shop and have them put in resonators to quiet it down.

s300 is s300. End of story. I can't see a better option there. and no mistake was made with skunk2 cams valves springs and retainers.

And I would also say your tuner could have pulled a few more horsepower out of your motor. But remember numbers aren't everything. Its how your car performs. 98vtec has 214 whp and is running faster times than 300whp ludes. Was your lude street tuned or just dyno tuned?
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Old 10-10-2009, 09:54 PM
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Re: Why am i not getting much whp?

alright i will grab the dyno chart and post it on here asap. Also i know the megan header isnt the greatest by any means but i had it long before the build. The engine is still the H22A4. Now this is gonna make your guys eyes drop but the tuner isnt exactly all that sure of why im losing so much horsepower. He seems to think its a cloged cat. I know an intake manifold and larger throttle body would help, but i would assume i should be over the 200 mark with what i got. I will figure out what i have my cams set up as in degrees. Im thinking i might just save up and go to a different tuner and bring them my dyno chart and see what they think. See if thats how they would have dyno'd it and maybe narrow it down to a mechanical problem instead of tuning.
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Old 10-10-2009, 10:15 PM
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Re: Why am i not getting much whp?

Quote:
Originally Posted by coachroy View Post
alright i will grab the dyno chart and post it on here asap. Also i know the megan header isnt the greatest by any means but i had it long before the build. The engine is still the H22A4. Now this is gonna make your guys eyes drop but the tuner isnt exactly all that sure of why im losing so much horsepower. He seems to think its a cloged cat. I know an intake manifold and larger throttle body would help, but i would assume i should be over the 200 mark with what i got. I will figure out what i have my cams set up as in degrees. Im thinking i might just save up and go to a different tuner and bring them my dyno chart and see what they think. See if thats how they would have dyno'd it and maybe narrow it down to a mechanical problem instead of tuning.
dont worry about the dyno numbers. They are unimportant. I made 176whp with my h22a/rmf/apexi setup and it ran 14.0 at 97mph. Run a compression test to make sure the engine breathes well. Clogged cat could be a reason as well but you need to post a chart or atleast tell me where it made peak torque and what rpm the engine made peak power to.

please answer all my questions if you want my help.
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