Ls4GXP

Hi, I'm considering to buy a GTO again after I lost my 04a4 and wondering about pros&cons about cable vs. drive by wire, personally I really liked the cable TB because of less electronic/sensor interference no electronic TM kickin in. I believe the computer in the Ls1 is alot simpler than the Ls2s but I could be wrong........Input from anybody here would be greatly appreciated


PS I know the Ls2s have 400hp/400tq but I really don't like the idea of the 90mm TB in the Ls2 to only open up maximum of 88% at WOT.I want to use my muscle mechanicly not electronically but again maybe I'm missing something about the Ls2 and you guys can shed some light on me thanx. And I got my aftermarket parts for Ls1 gto from my old one which ran me PB 12.8@109mph.

KtownGoat

as with everything new, its all in the tune...90mm is better hands down..

oct03gto

iTrader: (15)

90mm in of corse going to be better. But its the cable action that is much better. I bought my car in April 2005. It is a 2004 M-6. I bought the 04' because I hated the responce of the fly-by-wire. Even when one is tuned, it still isn't like a cable actuated throttle.

There is tourqe management on both. Even the 6 speeds. Which ever car you get, just get a good tuning shop to tune the car. It wil be a much differant car once properly calibrated. Both thypes of throttles.

325trooper

iTrader: (2)

As an owner of both, I disagree 110%.

Ls4GXP

In your own words can you explain the differances between the two??

04blowngoat

iTrader: (3)

from Wikipedia:

"....Contrary to popular belief, except in concert with other technologies such as gasoline direct injection, ETC provides only a very limited benefit in areas such as air-fuel ratio control, exhaust emissions and fuel consumption reduction. ETC however makes it much easier to integrate features to the vehicle such as cruise control, traction control, stability control and others that require torque management, since the throttle can be moved irrespective of the position of the driver's accelerator pedal. A criticism of the very early ETC implementations was that they were "overruling" driver decisions. Nowadays, the vast majority of drivers have no idea how much intervention is happening.

Much of the engineering involved with drive-by-wire technologies including ETC deals with failure and fault management. Most ETC systems have sensor and controller redundancy, even as complex as independent microprocessors with independently written software within a control module whose calculations are compared to check for possible errors and faults."

So....

Is DBW better? No not really. Is DBW less safe? No not really? Will you notice DBW? No not really. It's just alot easier to integrate into the PCM/BCM.

SIK GTO

Doc has an 04 M6 with over 600rwhp. I have an 06 M6 with over 600rwhp. We both drive well. I can outshift my DBW and so can Doc, but he has no issues with his 04 cable. If you are going to be doing drag racing, get the 04, IMO. And, if you already have some mods, there you go. If you get an A4, get the LS2, though. There are alot of GTO's for sale on the LS2GTO forum.

gmguy4life

I love my cable. I also would love to have the extra space that the LS2 guys have because the DBW setup eliminates the Cruse Control module, Throttle relaxer module, the computer is smaller and the coolant tank is gone. A good friend of mine has his LS2 car tuned and it feels like a cable driven car.

Ls4GXP

Out of the two GTO's Ls1/Ls2 which one would be cheaper to mod say 600rwhp and is simpler and less problematic.

KtownGoat

IF this is true....shouldnt we go back to cable actuated flight controls in airplanes as well? I think not...

Ls4GXP

Bad example.......does your GTO's TB work on hydrolic system??

on the other hand why does every muscle/drag car operate with cable?? That many can't be wrong.....just my 1/2cent.lol.

oct03gto

iTrader: (15)

Differant production processes and programming features makes a big differance. The way I drive my car (stick car) is affected with a drive by wire. Due to the way GM has programed the modules from factory, the delay on the 05', 06's is slow. Tuning helps alot. But the responce is still not as good as the cable driven cars. I blip the throttle a couple times when I take off from a stop. Doing this in a stock tuned 05', 06' the throttle never even actuates the blade. The RPM's don't jump at all. When tuned, it's better, but still not al that good. Honestly, it's personal preferance. I flat out don't trust or like the fly by wire. But there still is a differance.

I would also like to add something. I have modded tons of cars. (customers cars as well as my own) I have driven and built 600 FWHP 402 with fly by wire. They are responsive. But that's alot of power talking. I am not talking from my ***. But from my experiances from building and driving many GTO's.

GFORCE1320

iTrader: (15)

I haven't had any issues with my DBW. 88% is WOT, it's just a fluke, it's really open 100%.

geeteego

iTrader: (1)

There is nothing "simple" or "less problematic" when you're running those kind of #'s...especially on stock internals.

From a purely mechanical standpoint, 05-06 GTO's have better heads, a marginally better intake, a better TB, more displacement, etc...so start there if you want a 50hp lead from the get-go, and a platform for mods down the road.

I personally am quite fond of LS1's however.

SIK GTO

If you're planning to mod to 600rwhp, obviously, it would be easier to achieve with the LS2.

Free advice: Plan to mod that high? Get another A4. 600 rwhp A4=10's, no problem. 600rwhp M6= learn how to launch, REALLY good.

Ls4GXP

Alright guys thanx for all the good info, by the sounds of it there all good Ls1/Ls2 with m6 or a4 its all personal preference, you guys are all FAST!! I've made up my mind its going to be the rare purple 04a4.

ps getting the custom painted/purple magnacharger to match the car, just wanted to share that with you guys.

325trooper

iTrader: (2)

I don't notice a difference.

gmguy4life

Damn good numbers you got. Wow.

Ls4GXP

I don't get it.