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need help throttle body

 
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Old 07-15-2012, 12:08 AM
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need help throttle body

is there any better performance throttle body out there? if so how much would it cost and where can i get them?
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Old 07-15-2012, 01:19 AM
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Re: need help throttle body

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Originally Posted by hawaiilude View Post
is there any better performance throttle body out there? if so how much would it cost and where can i get them?
Why? A bigger throttle body is not going to gain you anymore power without the rest of the engine upgrades like:

1. Port and polish with port matching the intake manifold and aftermarket header.

2. Bigger exhaust with mandrel bended curves. 2.25" to 2.5"
3. Adjustable Cam gears.
4. ECU chipped and tuned to with all the upgrades above.

And if you want more power, you will need to go over sized pistons and rings, to the B21a1 bore specs, this is combined with a B20a5 head.

Just buying a bigger throttle body will not net you any gains, and is a waste of money without all the above upgrades.
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Old 07-15-2012, 01:52 PM
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Re: need help throttle body

The throttle body from an Acura Vigor 5 cylinder will bolt up. You will need a few mods to take advantage of it.
- Enlarge plenum intake diameter to match the larger throttle body.
- Adjust the WOT stopper to allow the new t-body plate to open 100%.

Here is some more info about it:
TPS and the Vigor Throttle Body - Honda Prelude Forum : Honda Prelude Forums
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Old 07-15-2012, 07:00 PM
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Re: need help throttle body

Bigger injectors... slightly.

CAI --> larger throttle body --> Would this cause a little leaning out of the AF mixture?
Maybe not extreme lean but a little.
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Old 07-16-2012, 07:12 AM
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Re: need help throttle body

From what I know about it, you will not require a chip or tune just because you install a larger throttle body. No leaning out, no larger injectors.

Now, larger injectors will require a tune to squirt the right way. I wouldn't change injectors unless it was necessary.
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