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How much HP do you think all of this is worth?

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Old Sep 10, 2002 | 05:12 PM
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Default How much HP do you think all of this is worth?

Here are the things I have done thus far and the "advertised" rating:

Loudmouth 25
Y-pipe 10
no Cats 5
BBK 80 mm TB 15
MAF ends 5
Lid and K&N 15
Bellows 5

That adds up to a total of 80 hp <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> ....that seams high for just bolt on stuff......add that to the "under rated" 310 stock for 01 Z28s and I "would" have 390 hp.

Any care to help me with a guess on what I'm probubly at? I'm going to be getting it dynoed in another week but am really wondering.

Thanks

Chris
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Old Sep 10, 2002 | 05:18 PM
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Default Re: How much HP do you think all of this is worth?

That sounds a little optimistic to me. I would say about 30 to 40hp. I've heard of y-pipes giving up a few hp, throttle bodies close to nothing, bellows a miniscule gain, and maf ends can actually rob hp if your tuning isn't good. Just my opinion.
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Old Sep 10, 2002 | 05:24 PM
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Default Re: How much HP do you think all of this is worth?

ummm, lol, my guess is you might get 25 at the wheels on the dyno so, I would say around 315-320 if you're an auto or 325-330 if you got a 6 speed
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Old Sep 11, 2002 | 05:58 AM
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Default Re: How much HP do you think all of this is worth?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 2001CamaroGuy:
<strong>Here are the things I have done thus far and the "advertised" rating:

Loudmouth 25
Y-pipe 10
no Cats 5
BBK 80 mm TB 15
MAF ends 5
Lid and K&N 15
Bellows 5

That adds up to a total of 80 hp <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> ....that seams high for just bolt on stuff......add that to the "under rated" 310 stock for 01 Z28s and I "would" have 390 hp.

Any care to help me with a guess on what I'm probubly at? I'm going to be getting it dynoed in another week but am really wondering.

Thanks

Chris</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I had a friend with an 01' WS6 with just a lid and Borla put down 333rwhp, thats about 378lfywheel hp.
Most stock 98-00 M6's put down 300rwhp, and the 01-02 M6's put down 310rwhp.

Loudmouth 25 = maybe
Y-pipe 10 = don't waste you money, get headers
no Cats 5 = maybe
BBK 80 mm TB 15 = don't waste your money again, get yours ported and polished for $99
MAF ends 5 = maybe, and you might get some pinging
Lid and K&N 15 = sounds right
Bellows 5 = maybe


Pretty much with all the bolt-on's (headers, and pulley that is not listed) you'll be around 350rwhp with an M6. Thats about 397flywheel hp.

Peace,
Craig.
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Old Sep 11, 2002 | 07:19 AM
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Default Re: How much HP do you think all of this is worth?

Cat back, 10rwhp
Off road Y, 10rwhp
BBK, 5rwhp
MAF ends, 5rwhp
Lid,K&N,Bellows, 12rwhp

This is more like it. <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
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Old Sep 11, 2002 | 07:22 AM
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Default Re: How much HP do you think all of this is worth?

40 MAX!
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Old Sep 11, 2002 | 09:30 AM
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Default Re: How much HP do you think all of this is worth?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Bad02WS6:
<strong>Cat back, 10rwhp
Off road Y, 10rwhp
BBK, 5rwhp
MAF ends, 5rwhp
Lid,K&N,Bellows, 12rwhp

This is more like it. <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ya, that's about right. Bellows won't give you crap. just look's better.
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Old Sep 11, 2002 | 10:21 AM
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Default Re: How much HP do you think all of this is worth?

Thanks guys <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> I forgot about the PASP underdrive pullies....how much do they add?
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Old Sep 11, 2002 | 10:32 AM
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Default Re: How much HP do you think all of this is worth?

ASP underrdive pulleys give some 0 and give some 10.
I was one of the lucky ones that got 9 rwhp <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
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Old Sep 11, 2002 | 10:22 PM
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Default Re: How much HP do you think all of this is worth?

(NOT the BBK, I would expect none from it)

Why do people rag on the BBK so much? <img border="0" alt="[fight]" title="" src="graemlins/gr_punch.gif" /> I really felt a BIG power increase with it. It is a quality piece (EXSPENSIVE!!!!!!!!!!!!) and the housing is actually larger than stock (80mm vs. the stock 75mm). Ported TBs are nice (smooth) but a smooth 80mm is going to flow more than a smooth 75mm.....larger area = more CFM. It is also really nicely built…..the butterfly is a heavy brass plate and the shaft is machined to decrease air resistance going over the butterfly. The fit was perfect and the bragging rights from the engraved “80 mm” is quite nice unto itself. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

<small>[ September 11, 2002, 10:22 PM: Message edited by: 2001CamaroGuy ]</small>
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Old Sep 11, 2002 | 10:33 PM
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Default Re: How much HP do you think all of this is worth?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 2001CamaroGuy:
<strong>(NOT the BBK, I would expect none from it)

Why do people rag on the BBK so much? <img border="0" alt="[fight]" title="" src="graemlins/gr_punch.gif" /> I really felt a BIG power increase with it. It is a quality piece (EXSPENSIVE!!!!!!!!!!!!) and the housing is actually larger than stock (80mm vs. the stock 75mm). Ported TBs are nice (smooth) but a smooth 80mm is going to flow more than a smooth 75mm.....larger area = more CFM. It is also really nicely built…..the butterfly is a heavy brass plate and the shaft is machined to decrease air resistance going over the butterfly. The fit was perfect and the bragging rights from the engraved “80 mm” is quite nice unto itself. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It is very expensive (NOTE: overpriced!), but unless they have changed, most of them are crap. I actually think that you are the first person that I have ever heard of that is happy with their BBK on a stock displacement motor. I do not believe for a minute that a BBK will make more power on a stock internal motor, or even a mild H/C setup, because the intake inlet is the same size and either TB will give the engine all the air it can handle. I think that a good chunk of the gain given by a ported TB is from reducing the turbulence of the air, not from allowing significantly more air in. These are just my thoughts, though.
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Old Sep 11, 2002 | 10:49 PM
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Default Re: How much HP do you think all of this is worth?

"I do not believe for a minute that a BBK will make more power on a stock internal motor"

First time I drove it (swapped out stock TB for BBK) it screamed. I picked up my friend and he asked “did you change something? It seems to pull stronger…” <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

"the intake inlet is the same size"

That gave me the "whistle" problem I had <img border="0" title="" alt="[Sad]" src="gr_sad.gif" /> .....but I went in and just smoothed the edge of the intake and it went away. One of these days I would like to take the intake off completely and port that area out to 80 mms.

"I think that a good chunk of the gain given by a ported TB is from reducing the turbulence of the air"

That is very possible....I had never thought about that before <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

Thanks....anymore input? <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

<small>[ September 11, 2002, 10:52 PM: Message edited by: 2001CamaroGuy ]</small>
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Old Sep 11, 2002 | 11:21 PM
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Default Re: How much HP do you think all of this is worth?

throw away all your Y pipes, and Go X pipe..i just got my 3' x pipe on and 2 12' bullets..I love it..and deffinantly noticed a difference,
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Old Sep 12, 2002 | 12:23 AM
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Default Re: How much HP do you think all of this is worth?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by kick_*ss:
<strong>ASP underrdive pulleys give some 0 and give some 10.
I was one of the lucky ones that got 9 rwhp <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">But it seems to give 99% of the people about a tenth anyway.

Remember, that you can't just add up the numbers you would get by doing the mods by themselves. Say, you would get 8 from a lid and 7 from MAF ends and maybe 4-5 from a good ported throttle body (NOT the BBK, I would expect none from it), that doesn't mean you will get 20 hp if you do them all at once. My rule, is to take the advertised HP rating and multiply it by 2/3, that is a more realistic gain.
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Old Sep 12, 2002 | 12:36 AM
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Default Re: How much HP do you think all of this is worth?

Most of the info I have looked into says the the companies that give those gains are not talking rwhp. They rate it at the flywheel thus misleading the consumer without their knowledge. Then they are nat actually falsly advertizing. Sounds llike a back door job to me. <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
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Old Sep 12, 2002 | 10:20 AM
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Default Re: How much HP do you think all of this is worth?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by jeff gustafson:
<strong>throw away all your Y pipes, and Go X pipe..i just got my 3' x pipe on and 2 12' bullets..I love it..and deffinantly noticed a difference,</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I can't wait till I have the money to do that. I will either do MACs or Hooker LTs with an x pipe and bullets....only thing holding me back is the $$$.. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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Old Sep 12, 2002 | 11:37 AM
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Default Re: How much HP do you think all of this is worth?

People tend to forget that gains are not always in the PEAK HP! For example, you might pickup 20-30ft/lbs of torque from 2000-4000RPM and that would NOT register on your PEAK HP/TQ. Dyno graphs are the only way to see if you've actually gained power. Don't go buy peoples "gained peak HP" ratings, as most people only hit their "peak HP" twice on a 1/4mi run!
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