Rep Power: 584

INTAKE MANI/TB=650
AEM INTAKE=200
DC HEADER=300
EXHAUST(GREDDY CATBACK)=500
VAFC2=300
TOTAL=1950

1950 bucks spent on 15whp that means 130bucks per whp

i spent 11k, including labor, and alot of other **** that u people dont have and that increase put me at 141whp of gain
11,000/141=78 bucks per WHP

what you people dont realize is these PNP head by DH actually in all reality SUCK!
you people are impressed with how big the intake and exhaust ports are!! yippie kay yay!
sucks to be YOU bc that just HURT YOU. AIR moves FASTER though those stock ports over those hugeDH ports any day. i cant tell from the pictures of these heads but if DH is makeing that lil divider between the two vavles that u can see through the ports razor sharp, that is HURTING YOU TOO, the sharper that edge the more turbulence that will be created, think about it is an airplane wing sharpened to a fine point on the front side of the wing, NO ITS ROUNDED, SO MORAL HERE....air moves better over smooth edges not razor sharp ones.

NOW for the PORT sizes, in our cars u want more VELOCITY and NOT CFM! so DH is giving you BIG CFM and slowing the VELOCITY DOWN. WAY TO GO IDIOTS!

and for the guy who beat the EP, the 2 things that let u beat him was 1)you sprayed the 50......2)HE DONT KNOW HOW TO DRIVE RIGHT.

 
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^^ dude, I didn't mean 15 total....i meant 15 from the intake mani/tb. With that set up tuned, I would expect to put about 140 ish to the wheels....on my dx.

U have to see what I spent....


Intake Mani/TB = 540
AEM Intake = 95
Kamikaze Header = 280
Custom Exhaust = 240
SAFCII = 295

1450

So about 500 less then what you quoted. And if I was to see a 35 hp gain to the wheels...not to unreasonable, but not very likely....

1450/35= roughly 41 bucks to each hp.

Port sizes, I wont argue with that one, we both know those were way to big. The intake mani though really wasn't ported out all that much...it is plastic after all. LoL.

 
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if a throttle really gave that power i think it would definatly be worth it. maybe we should all wait for the dyno that probably wont ever come///haha

 
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http://www.7thgencivic.com/forums/sh...06#post1988206

read that thread and ull see why DH is crap and if u buy ANYTHING, even a NUT AND BOLT from them, i would have no sympathy if ur **** breaks

 
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^^ perhaps that's why I never complain....i don't need anyones sympathy, I can manage myself thanx.

 
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all I have to say is that "the past repeats itself."

 
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Heres some pics -waiting for the spacer TPS sensor and plug and the manifold, but looks good so far-

 
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I was going to buy the throttle body from DH, but my mechainic told me not to. He also told me not to buy the DH pulley which I'm so glad I didn't now. The reason he told me not to buy the TB is because of it killing your low end torque..Maybe 2 mm over the stock size would be ok, but nothing over that unless your running boost. I hope this isn't another peice of **** product from DH

 
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I was going to buy the throttle body from DH, but my mechainic told me not to. He also told me not to buy the DH pulley which I'm so glad I didn't now. The reason he told me not to buy the TB is because of it killing your low end torque..Maybe 2 mm over the stock size would be ok, but nothing over that unless your running boost. I hope this isn't another peice of **** product from DH

 
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For the sake of the few people that bought it...I hope so too.

 
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I dunno why you would lose low end torque...I'm honestly trying to thinkg about it.

I know that if you open up your exhaust to much then you lose it...but how would opening up the TB. If someone could explain that would be great.

 
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Anytime you increase the area that air flows through, you will lose velocity. So when the car is at low rpms and sucking in less air, it will move more slowly through the TB. At higher rpms, the stock diameter is not big enough to flow the maximum amount of air. That's why a bored TB will yield 3-5hp over 4k rpms. You're sacrificing low end torque for high end hp. It's basic physics really.

With a turbo setup, you should be pushing in air all the time at a high speed. So bigger port is better. The stock setup simply cannot suck in air fast enough, so that's why the stock ports are smaller (to increase velocity).

 
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^ well said... I think this will prove to be like the KMS and only help those that have force induced themselves... maybe i should wait out till i boooost

 
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Well What about with Nitrous? and also what if you have a ported head too?

 
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I have a ported head and he told me that even with that I shouldn't use a over sized TB...You may benefit from notrous, but your not spraying all the time, so i think it would be a waste. Just my 2 cents

 
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A waste that's already been bought. LoL. We will see.

 
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True that i don't spray all day long but I don't wouldn't care as long as when i do spray it helps alot so im sold.

 
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I just want to get this **** over with. I/H/E (IM) (TB) (PnP head) and then i will dyno tune it with the safc....if I see sufficient gains then I will be one happy mother ****er.

 
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Good luck getting it installed. The shop was supposed to install mine 3 weeks ago and they're blowing me off now. Another shop wants $800 for the head. I'm gonna have to look some more. Also the gasket and header still need port-matching.

 
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the port matching will be done right when it gets here with a dremmel. As for the install, I'm driving 3 hours to spend the night at a friends place....it's gonna be an all night job. LoL.

 
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They need to make engine parts of out the metal that T-1000 was made out of in Terminator 2. It will contract at lower rpms and expand at higher rpms to keep optimal air velocity at all times.

btw I just copyrighted that so if you use that idea I get 80% of the profits.

 
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Except that they didn't even find the problem for his ride yet, so don't be jumping to conclusions that it was DH Racing's fault. Not that I particularly trust DH Racing, but everybody loves to jump on the band wagon and rail on that company, which seems a bit crass.

-Aki

 
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Yeah, but I've read enough about pulleys to know that it was most likely responsible for that particular damage. Other people have had the same problems.

 
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I'm tired of these ****ing threads being taken over by haters. Stay the **** out if you don't have any useful information.

 
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^^He's got a point....There are threads stacked with why a group of us don't like DH....that's our opinion. These threads are useful only if they have useful information...not opinions on why people like or don't like DH.

Some of us felt DH did us wrong...as a result of that DH is no longer a vendor here...problem solved. Now we have to deal with how to use the parts members bought from them and that's all that really needs to be discussed.

 
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Actually i don't think a bored throttle body will help with nitrous. Because with nitrous aren't you just changing the percentage of the dilation of oxygen in the air, and not really forcing it in?

 
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the haters seem to be the ones who know what they are talkin about in general!

 
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Well, I'm not going to lie. I don't know sh*t about engines...but I'm learning. For the most part, though, you are right. I could tell DH and Josh weren't treating us right and were misleading...that's why I became a hater; and I was skeptical from the start. Simply because I am very reluctant about moddign my engine without knowing what the possible cons are os using a mod. But that's not the topic at hand in this thread it seems.

 
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Well I think are right to say that the TB won't help with nitrous. the TB enables more air to be sucked into the engine but it doesn't dilute the oxygen per se. Nitrous increases the amount of O2 in the engine to give you a quick spurt of power. This would be why wet kits are safer: if you are inducing more O2 then you need to have enough fuel to combine in order to make the proper ratios of each to make the most power....a quick boost of O2 without the fuel needed = possible combustion I think. So with the TB you have what? even MORE O2 in your engine...it doesn't seem practicle to me.

Regardless, the TB would increase the amount of O2 when used in conjunction with nitrous in anything which seems would put you more at risk to run lean unless you turn according to the TB and nitrous set up. Just as long as you use a wet kit and spray the correct amount of nitrous plus gas and tune your engine according to the O2 the TB intakes....I don't really forsee any danger there....but everyone says the TB is TOO big...I don't see how that could be a problem just as long as you tune accordingly...but I don't really know what I'm talking about. In fact, can someone who knows what their talking about validate my assumptions of prove me wrong?

 
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shoot I plan on getting the V2 to replace my CAI and bypass I have now with a 3in coupler on this huged bored tb from Dh. I just wish I could get the spacer and bored Manifold for the races on May 22nd up at DIA. All in all I still like Josh and the products they make yeah some got messed but did they actually try the products even if they heard they were ****, I think no. They have no actually proof that they suck-the pulley I understand the dampner aspect in the long run though-