question about quad TBs

[Cypher]

ok... lets say for the sake of argument i could find a quad TB setup... what would be needed to accomudate the excess amount of air? would sonata injectors suffice? would the gains be worth it?

[Josh K]

ok... lets say for the sake of argument i could find a quad TB setup... what would be needed to accomudate the excess amount of air?

A different engine...

[tricked03gls]

quad throttle bodies, real engeneering makes them (made by tigerlilly)i do belive they come with injectors

[ABQelantra]

yes new injectors (dont know if sonata injectors would work, but they should be more than fine) and something to tune your a/f with.

[kylemorg]

From what I understand about the Beta motor, the air intake isn't the limiting factor in the horsepower in a N/A engine. You can only burn as much gas and air as the combustion chambers can pull in, which is 2 Liters * RPM.

You might gain a little bit of power because you'll have less pressure drop coming into the cylinders, but I doubt it'd be much. I think it'd be an interesting test, but like the airram, you might find that you either don't gain any power or perhaps even lose power.

Anyway, I don't think you'd need bigger injectors.

How are you going to rig a MAF or MAP?

[yamaha]

Even if he does do this. The ECU will also compensate for more air going into the IM and add more fuel. The problem I find is with the cams, they will only allow so much air to be allowed in and out at a given time. If you were to do this, I cant see you not dumping atleast 1,000 bills into this project to see some serious results.

[FordFasteRR]

I would like to chime in here... and trust me, its not gonna be good...


#1. you will have to use a map setup for this to work since you will completely remove the intake pipe AND the intake manifold...

#2. the map sensor will have to be rigged to something so it can read vacume .. but how can you do this WITHOUT a plenum ? Some people have removed the map sensor and basically run a voltage inverter directly from the TPS as input for the MAP sensor ecu pins.. this will allow you to trick the ecu into getting a map signal from the tps based on throttle position ... this will work but it will not be perfect such as going up hills and such because the ecu can't read the extra load ...

#3. you can use the stock injectors since you won't make any power with individual throttle bodies until after 5500 rpms anyway.

#4. you will not have any torque at lower rpms so driving around town will suck.

#5. in order for the engine to idle without a vacume plenum (intake manifold) you will need to idle much higher than stock, say 1500 - 2000 rpms.

#6. as a result of this high idle, you will have to dump LOTS more fuel to keep the engine running at low speeds... this will result is bad gas mileage for daily driving.

#7. You will need to masterfully re-tune the ecu for the car to run properly ... it is possible to get a SAFCII to do this for you but you might need more...

[tricked03gls]

Even if he does do this. The ECU will also compensate for more air going into the IM and add more fuel. The problem I find is with the cams, they will only allow so much air to be allowed in and out at a given time. If you were to do this, I cant see you not dumping atleast 1,000 bills into this project to see some serious results.
its more then 2k for the throttle bodies alone man lol on top of that id run a full ems system bigger injectors and then you got to get it tuned id look more at 4-5grand but one mean N/A ENGINE!

[tharptroy]

its more then 2k for the throttle bodies alone man lol on top of that id run a full ems system bigger injectors and then you got to get it tuned id look more at 4-5grand but one mean N/A ENGINE!

lol...I think if you did all that, you'd have the worst hp/dollar ratio of anyone.

your wicked ITB setup might get you 155whp...

for bang per buck, you'd be much better to shave the cylinder head, do a port job, get some cams, a GOOD header and custom intake manifold.

[FordFasteRR]

lol...I think if you did all that, you'd have the worst hp/dollar ratio of anyone.

your wicked ITB setup might get you 155whp...

for bang per buck, you'd be much better to shave the cylinder head, do a port job, get some cams, a GOOD header and custom intake manifold.


i doubt anyone would get 155 whp with a stock NA motor by just doing that ITB upgrade...

lol

And even if they did, the torque would be so weak that a stock elantra would still be faster. lol

[tricked03gls]

eh you got to look at the rest of the stuff to do you cant just slap a throttle body set on it and call it a day, more air = more fuel right so you got to look at the ways to do this

[yamaha]

With this amount of air and fuel I would think you would need some extensive internal modification done to then engine to even see the power output of it.

[KeWLKaT]

there's just so much vacuum an engine can create... just because you have quad tbs doesnt necessarily mean that much air will get in...

[tricked03gls]

it calls for 500+ cfm id say that might be alot of air............