Turbo vs. Twin Turbo

tylerdurdenzs · 12-07-2005, 01:51 AM

OK - trying to figure out which to get a turbo, or a twin turbo, don't know much about the specifics, been doing a lot of research on google. Just thought you guys would know best. Also, it is difucult because i dont know which turbos / twin turbos are ok for the tsx because they dont seem to be a big buy on the tsx. Cool. Thank you.

MemphisRheins · 12-07-2005, 01:56 AM

Because of Drive By Wire, there are currently no Turbo applications available for a TSX, there is a way, but its extremely expensive, involves alot of products from a RSX Type S and a ton of Custom Fabrication... Sorry bud, right now the best you can do is a Hondata Reflash, I/H/E and keep you fingers crossed for Comptechs Supercharger to finally come out

tylerdurdenzs · 12-07-2005, 02:09 AM

what is "Drive By Wire" and why would they do that? What can i do in the meen time to get some speed, something bigger then a cold air or exhaust?

MemphisRheins · 12-07-2005, 03:09 AM

The best set up I can recommend for you is this, Injen Intake, Toda Headers, a High Flow Catalytic Converter, a Single outlet Exhaust, An DC5R Limited Slip Differential, Hondata ECU Reflash, some Real lightweight 17x8 Rims, Comptech Short Shifter And to make her more stable, Cusco Type 2 and Front Strut, and a Comptech Rear Sway bar, and Some form of Coilovers...

With those above mods, if your a good driver you may be able to hit High 14's... Right now you cant get a TSX any faster then that

The Above is probably also going to cost you at least 6,000$... TSXonDUBS is now Running a 70 Shot of Nitrous Oxide, That would also be worth looking into

MemphisRheins · 12-07-2005, 03:16 AM

Im not the best person to explain Drive by Wire to you, but as far as I can grasp the concept is this... the gas, brakes, Shifter, on the TSX are not directly linked to the engine, instead they are ran by wires to the Cars ECU computer, which interprets them and sends the signal to the engine, When you step on the gas, your sending an electronic signal, not moving a cable thats connected to the throttle body... Why this affects Superchargers/Turbo's im sorry but Im not sure, Someone else will probably be able to answer this better for you, but theres just an intial idea of where the problem lyes

AcidLotus · 12-07-2005, 12:16 PM

Just put a nitrous kit on it

2005 TSX · 12-08-2005, 10:20 AM

Quote:

Originally Posted by MemphisRheins

Im not the best person to explain Drive by Wire to you, but as far as I can grasp the concept is this... the gas, brakes, Shifter, on the TSX are not directly linked to the engine, instead they are ran by wires to the Cars ECU computer, which interprets them and sends the signal to the engine, When you step on the gas, your sending an electronic signal, not moving a cable thats connected to the throttle body... Why this affects Superchargers/Turbo's im sorry but Im not sure, Someone else will probably be able to answer this better for you, but theres just an intial idea of where the problem lyes

From what I understand, the only part that is "Drive-By-Wire" on my 6-Speed Manual Transmission TSX is the gas/throttle pedal. The brakes, clutch, and shifter are still attached through rods/linkages. The throttle is the only "Drive-By-Wire" system on our car.

Taken from http://www.hondanews.com/CatID3042?m...asc&archives=t

Quote:

DRIVE-BY-WIRE THROTTLE CONTROL SYSTEM

An electronic drive-by-wire system helps enhance the driving character of the TSX. With smart electronics connecting the throttle pedal to the throttle butterfly in the intake tract, the engine response can be optimized to suit the driving conditions and to better match the driver's expectations. By eliminating the direct throttle cable connection to the engine, the ratio between pedal movement and throttle butterfly movement can be continuously optimized. This adjustable "gain" between throttle and engine is a significant step forward in drivability.

To establish the current driving conditions, the system monitors pedal position, throttle position, vehicle speed, engine speed, calculated road slope and corner radius and engine vacuum. This information is then used to define the throttle control sensitivity.

From the driver's standpoint (because the drive-by-wire system is combined with other functions such as VSA and Traction Control) this means that the way the TSX responds to throttle pedal movements is tailored to the driving conditions. In stop-and-go driving, the pedal response has low gain and is smooth and progressive for easy driving. A similar low-gain response makes starting out on snowy or icy roads more predictable. In low- to medium-speed driving conditions, the gain increases to improve response and acceleration. In high speed driving, the gain increases further still, so that there's ample response for passing. The system also alters response based on the road slope, providing more throttle gain on uphills, and less on downhills, and also reduces changes in gain on curvy roads to make the car easy to control.

The throttle system works with the available SportShift 5-speed automatic transmission to make shifts faster and smoother than has been possible before. By coordinating the throttle opening with the transmission's shifting functions, engine power can be precisely tailored to the needs of the transmission at every point during the shifting process. That means less shift shock and delay, no matter the driving situation.

The TSX uses a DC motor to control the throttle butterfly position in the intake tract. Large bearings and internal upgrades give the motor greater resistance to vibration.

Take my next few comments with a grain of salt. Remember, I am not a mechanic, and don't know much about turbos, electronics, etc...but here is my thought...

First off...to the original poster. Don't bother with "twin turbos" For your 2.4 liter 4-cylinder, a twin turbo setup would be costly, inefficient, and I believe it would take up much more room with hardware (turbos, piping). Most people that drive and modify Hondas stick with a single turbo setup. Don't get me wrong...I am sure that a twin turbo setup is possible. You just need to supply a nice flow of $$$ to make it work.

Now, from looking at how the "Drive-By-Wire" system works...it seems that the cars ecu (computer) is heavily involved in how the engine responds to outside variables (speed, driving style, incline/decline, braking, etc.). Adding a turbo would mean that you would have to modify or reprogram that ecu to take into account the increased horsepower, new fuel maps, fuel pressure, VTEC engagement, boost conditions, turbo lag, tuning.

Basically, it seems that if you were to add a turbo, you would need to really change the way the "Drive-By-Wire" system works. Likely it's not an easy task.

And for more information about the TSX...click below.

Press Releases
Technical information
Specifications
Features
Images

tylerdurdenzs · 12-08-2005, 10:28 AM

thank you - for now i am waiting for the comptech supercharger - if it ever comes out... haha... hopefully soon

nas liw · 12-12-2005, 07:26 PM

yes i belive most of us are waiting for the SC or the turbo... i am hoping they will com eout with the turbo eventually... i hope atleast!!!

narci · 12-12-2005, 10:21 PM

I think the TSX's engine is too high of a compression to handle a twin turbo set up no?

Zasker1 · 12-30-2005, 10:41 AM

One other item to note is if you do a custom turbo setup you will also need a better clutch and LSD else it will be impossible to drive, so add 2500 to what ever price you get for a turbo setup..
I have wanted a turbo/sc for quite some time but as a reasonable setup is going to run around 7-8k it might be easer to just buy a faster car.

ThePanda · 01-05-2006, 05:31 AM

Turbo vs. twin turbo has nothing to do w/ CR or anything like that. The TSX is an inline four banger, so you go single turbo, simple as that. Engines that you could consider going twin on, would be a V configuration, or a boxer, where it uses two separate exhaust manifolds.
In the case of an inline configuration, where there is only one, trying to run two separate exhaust manifolds, as well as having room to put two turbines, with two downpipes, two intake pipes and two cold pipes, plus the water and oil lines for each turbine, it's nothing short of suicide.

nachob · 01-06-2006, 10:33 PM

Amen, single turbo for 4-banger. The smaller the better. You might not get as much boost but with the high revving nature of the TSX anything that will hurt bottom end is a no-no. Twin turbos are for 6 cyl or more to be practical.

Actually, since the TSX has so little torque the Comptech Supercharger is a better way to go.

IB

m0o0se · 01-10-2006, 01:19 AM

alright so
i got a 05 tsx auto a few months ago and when i testdrove it it was pretty fast but driving fast with others i realized it wasnt as fast as i thought
wat is the cheapest/quickest way to make my car go faster
and is ther n e way to make my car get a better turn radius cuz it suxxxx