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Throttle body selection

  #1  
Old 06-27-2012, 01:36 PM
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Default Throttle body selection

I have a 2000 civic, I'm not sure what the Y number is but the throttle body sits ontop of the manifold not on the side. I want to know if I can put a sid inlet skunk2 manifold and throttle body on instead. Also, what size throttle body to get. Right now I have flowmaster headers and cat back exhaust, MSD Distributer, Wires and coil. I recently added 440cm Venom fuel injectors, Fuel rail and filter. I do not plan on going turbo since this is my daily driver but I still want maximum power, What size throttle body is best?
 
  #2  
Old 06-28-2012, 05:42 AM
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All of those mods (including the intake manifold and TB) will not net you much hp, maybe 10 at most.

You only have one header. You will need to tune after installing those injectors. Stock injectors are fine IMO. You are not making any more power, so why do you need more fuel?

To answer your question, yes you can convert to the y8 style intake manifold and upgrade to the skunk2 while you are at it. You have a y7 at the moment.

The intake manifold and TB is going to kill your throttle response btw. The only good way to get power out of a D series motor is boost, or swap
 
  #3  
Old 06-28-2012, 09:42 AM
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Dam. Well, my throttle response is already bad, I have a automatic but I wanted a little more power out of my daily driver. Should I not get the t/b and manifold but instead start looking for a supercharger?
 
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Old 06-28-2012, 10:24 AM
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You need to do research before just buying parts and wasting money.

Have you checked your throttle cable on the car currently? Is it loose?
 
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Old 06-29-2012, 12:56 PM
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I was told by a honda specialist here in town, Called " Honda Doctors" that any throttle body up to 66mm on a N/A Honda will produce more power. Skunk2 techs said that in combo with their manifold there would be " a noticeable power gain over the entire RPM range. Honda Doctors confirmed this. I was also told that " boosting" without the infastructure of a better manifold and t/b would be reckless and asking for a failure in my intake system or exhaust system. Honda doctors offerd to Dyno my car to see the exact hp but guessed that it would be around a 25-30 hp gain with the existing mods and the new manifold.

They also said my throttle responce should increase unless I got something bigger than a 66mm but a 66mm is ideal for N/A, D series. They followed that up with " turbos destroy motors", Im not too sure about that last one but everything else seems legit.

Im installing the T/B and manifold this weekend and having it Dyno tested on Monday.... I will post the results.... but im not getting my hopes up, too much.
 
  #6  
Old 07-08-2012, 05:45 AM
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Keep in mind, both the people at Skunk and your local shop are trying to sell you something, and might be putting a really pretty spin on manifold and tb upgrades because it means that they are getting sales, which in most cases means commission for them. And since you've had all this work done, you'll want to have it dyno'd to have it tuned properly, which means you'll need some sort of fuel management system, which I'm sure they'd love to sell you too.

As for turbochargers killing motors, absolutely 100% not true. Stupid people who add aftermarket turbos without supporting mods, a good tune, and that drive like a$$hats kill motors. Now I've never owned a turbo Honda, but my most recent project (before I went from spending money on cars to now spending money on a friggin house) was a 1998 Mitsubishi Mirage, which had the 4g15 1.5 SOHC motor in it. Slow as could be and no power, so I put together a turbo kit for it. Had I just slapped on a turbo, the car wouldn't have lasted a week. But I put on a bigger fuel pump, injectors, fuel pressure reg, fuel rail, ported intake manifold, custom turbo manifold, 3" turbo back exhaust, manual boost controller, a decent piggyback and a professional tune. That car was my daily driver for almost 3 years, boosting at 9 pounds on a stock bottom end, and I wasn't always nice to it either. Point is, if you are smart about the build, know what you're getting into rather than just throwing parts at it, a good turbo set up is just as reliable as any NA car, and a whole lot more fun to drive.
 
  #7  
Old 07-09-2012, 11:19 AM
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Originally Posted by dmwolfs View Post
I was told by a honda specialist here in town, Called " Honda Doctors" that any throttle body up to 66mm on a N/A Honda will produce more power. Skunk2 techs said that in combo with their manifold there would be " a noticeable power gain over the entire RPM range. Honda Doctors confirmed this. I was also told that " boosting" without the infastructure of a better manifold and t/b would be reckless and asking for a failure in my intake system or exhaust system. Honda doctors offerd to Dyno my car to see the exact hp but guessed that it would be around a 25-30 hp gain with the existing mods and the new manifold.

They also said my throttle responce should increase unless I got something bigger than a 66mm but a 66mm is ideal for N/A, D series. They followed that up with " turbos destroy motors", Im not too sure about that last one but everything else seems legit.

Im installing the T/B and manifold this weekend and having it Dyno tested on Monday.... I will post the results.... but im not getting my hopes up, too much.
They say it will make power. I don't doubt that, but where in the rpm band will it make power? Only making an extra 10 whp when your motor is sitting at 7500rpms while you are losing power (compared to stock) everywhere else in the rpm band sucks.

I used to own a D16y8. Threw in a stage 2 cam, skunk2 manifold, bigger TB, and tuning. Car fell on it's face before 4500rpms. Started to move a little faster once I was up at around 7k rpms. I don't normally take the car out that far so, needless to say I hated the set-up and ended up wanting boost. Couldn't find the money to buy everything needed for a turbo kit, so I sold it all including the manifold and bought a supercharger. That was a fun set-up

Before and after dyno results? I am very interested in seeing what a IM and bigger TB actually does.
 
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