Quad throttle

[daniel b16a]

Hey guys....if i would like to get quad throttles on my b16a....wat mods do i need? juz ecu or do i have to do internal mods? how much wud they cost and will i make power?

[Slow96GSR]

Local price, or close to: http://www.tweakit.net/shop/index.ph...throttlebodies

Ok reading: http://www.honda-tech.com/zerothread?id=417663&page=1

Some more reading: http://www.superhonda.com/forum/show...threadid=57710

More reading: http://www.jdmcivic.com/forums/showthread.php?t=36718

IMO if you want them you'll need a ECU, fuel system upgrade, and a good tuner. I see no reason for new internals although that helps. All it does is take the place of the stock intake system. Not much more than that. As for power I don't know as we never use them here at this altitude as NA motors suck here and are a waste of time. I was reading and people said they got about a 50-70% increase but I doubt it's that high, but I can't say for sure. After Google and Yahoo searches I found those sites but nothing that great.

[todaek9]

Alot of money, alot of time and alot of noise....hehehehe...

[wuism]

no need ITB's lahhh...

VTEC TURBBOOOO!!!! more power....

[marcus]

but its fast if instal in ur car

[ekslut]

Hey guys....if i would like to get quad throttles on my b16a....wat mods do i need? juz ecu or do i have to do internal mods? how much wud they cost and will i make power?

First off why do you want quad throttle's? For street use I would not reccomend it. They are loud, so it will attract a lot of cop attention. You would better off with a good throttle body & intake manifold on the street.

You will defiently need a new ecu, and a good one too, coz they are apparently hard to tune. So factor in extra money for the extra tunig time.
To take proper advantage of the quads you will need internal work. But they will work with stock internals (dont know how well though). Overall it will not increase your max power by a lot, but it will give you a large increase in mid range.

[panda[cRx]]

First off why do you want quad throttle's? For street use I would not reccomend it. They are loud, so it will attract a lot of cop attention. You would better off with a good throttle body & intake manifold on the street.

You will defiently need a new ecu, and a good one too, coz they are apparently hard to tune. So factor in extra money for the extra tunig time.
To take proper advantage of the quads you will need internal work. But they will work with stock internals (dont know how well though). Overall it will not increase your max power by a lot, but it will give you a large increase in mid range.

trev pretty much got it in one

[Limbo]

people only go quad throttle when they are chasing max power, and staying NA. There are more cost effective ways to make power, i.e cams, p&p, increase displacement.

I had quad throttles on a 20v (they come stock) and it didn't even run them independent. I needed an aftermarket ECu and hours of tuning just to get alittle more power. it was loud, sounded great, but was hard to idle.
For the gain you gonna get its nominal compared with the price, unless you want it for the rice factor of having little filters ontop of your quad throttles

[daniel b16a]

oh okies...i though you would get massive power gain..im currently going to purchase an apexi power fc first....then thinking either to go na or so on...hmmm might juz do cams and p&p...
WUISM : TURBO...once u got ur k20a in ur eg...then yeah turbo for sure la!

[spardikis]

i'll probably get some quads in the near future, along with another set of cams - most probably a stage 2 set and 4-1's over 4-2-1's. my engine is tuned for a more mid range power band maxing at 110kw. I guess im just currious to see how they run, and to have a unique set up. cant wait! I expect alot more top end power which is where i play anyway...

[TODA AU]

Hey guys....if i would like to get quad throttles on my b16a....wat mods do i need? juz ecu or do i have to do internal mods? how much wud they cost and will i make power?

Minimum requirement:
ECU / Clear the fire wall (move a few things)

Usual practice:
Built race engine / fuel system / ECU / Ceared fire wall / custom airbox etc
Cylinder head porting is different.

Power output charateristic,
Example: A B16A making 220hp @ the flywheel @ 8600rpm using Type R intake manifold & throttle.
With no other changes, the quads will deliver approx an extra 30hp @ 5500rpm
However Peak power will only increase by approx 10hp.
This trend holds true with most engines.
Retuning is obviously required.

On a std engine, the gains would obviously be less.
& In my opinion, you'd be wasting your money fitting quads to a std engine.
Size of throttles makes a difference also.
This is rpm & capacity dependant. (avoid going too big)

[iamhappy46]

^^ Agreed.
4x 45mm throttle bodies can potentially flow the same amount of air as a single 90mm throttle body. Obviously, you would need camshafts/head work to be drawing in THAT much air flow. However, having shorter induction pipes change the resonant air frequency of the intake system, to promote more cylinder fill at hi rpm. If you were to have longer trumpets or fit a larger plenum with close to 4" piping to a larger single air filter in the factory location, it would make it more street friendly.

The Power FC would have troubly controlling ITB's and you wanted any sort of street driveability out of the engine, I would be fitting a MoTec ECU...

I agree that fitting ITB's on a otherwise standard engine is a waste of ca$h, it would have similiar gains to fitting a 80+mm TB on a stock motor.