I was out running with some of my friends and roommates after our football game and i when i stomp on the gas when were running i noticed a small delay, my friend things its turbo lag, i think its that damn drive by wire delay...

Anybody know how bad out turbo lag is? is it truly turbo lag?

 

Yes an lnf has turbo lag. Not very much but it does have some.

 

if you experience it right away as soon as you hit the gas pedal, its drive by wire lag

all the cobalts have it.

with tuning you can alter it a bit to help avoiding it by editing the power enrichment settings

 

Yea its as soon i hit the pedal thats why i thought it was the drive by wire lag

 

I think the cobalt ss turbo has the least amount of dbw lag ive ever seen in a car at its pricepoint. What you are experiencing is turbo lag.

 

Depending on what gear and rpm you're doing this in, you will experience some turbo lag. The drive by wire lag is practiacally unnoticeable. You can see it in data logs, but can barely feel it.

 

Drive by wire. Ure car must be rare....... I don't have that..sorry for the sarcasm...... But our cars have a electronic t.b so its moved by a tps sensor on the gas pedal and controlled by the ecm. ....You will have a lag with this as well million second or so but yeah..turbo lag is minimal compared to a larger turbo lag... My lag when. I don't blow my hahn post endtanks is 3500-4000 for full spool............ So don't cry please lol. If you feel u have to much turbo lag look for a boost leak..



Drive by wire is a manual cable that is mounted from the gas pedal to the tb. And is a sprung t.b so it can backlash to its original spot for idle and ect. ...

 

You want dbw lag go drive any Toyota. They have tons of it

 

You want to feel lag... Drive a geo metro 3 cylinder with a gt40 ah Hahahahahahahahababababababa im jk. Lol

 

You think our vehicles lag? My wife has an Envoy with the 4.2 in it and it is horrible off the line. Conventional thinking is that they did it to save stress on the trans and the rear end which has aluminum caps.
Take a look at this vid to see what the standard opening rate is like
YouTube - ‪Trailblazer LL8 4.2 liter electronic throttle demonstration‬‏

 

I was doing 3rd gear rolls around 60 maybe...I didn't thing the lag on these cars was that noticeable, thats why i thought it was the drive by wire delay. I'll have so vids for you guys later it was against my roommates stage 2 gti

And drive by wire is what the eletronic tb control is called
Drive by wire - Wikipedia, the free encyclopedia

 

No, that's called a throttle cable. Drive by wire is an electronically controlled TB such as the setup on our cars.

 

Thats pretty bad, on the lnf it takes 1 second to go from 50% to 100% open.

 

At 60 in 3rd you should have almost zero turbo lag... I can see on hp tuners that it takes quite a while to open fully on my car. And that is after tuning and stuff. I am still a stock turbo... I just looked and it take about a full second for the computer to open the TB all the way. I actually reach full boost before my car opens the TB 100%

 

Brake boosting solves both the DBw and leggy boost issue.

 

I scared i might damage my brakes brake boosting, is there a safe or proper way to do that, holding the brakes while hitting the gas seems wrong to me.... Unless im jsut wrong and thats not how you do it at all

 

I dont remember if I read it on here or on the HPT forums but someone has been working on getting the throttlebody to feel more like a traditional cabled one as opposed to the electronic. Obviously you can only do so much in HPT but he said there was a huge difference. I'll search for the thread quick but prolly wont find it

it does wear your brakes.

 

when you are doing 60 rolls not brake boosting you will feel lag if you did a 2nd @ 40 it would be an entirely different feeling

 

its gay emissions tuning... it takes a full 1.5 seconds for the throttle to open all the way up on an LNF from when you nail it... but it can slam it back to 50% in only a few frames and slowly ramp it back up to 100%...

basically its tq management and emissions tuning making the car harder to drive... it would have made too much sense to just design a new transmission for the cars...

 

Yea but you gotta see Chevy's point of view... Several million dollars on design and testing, then re-tooling of manufacturing facilities... I bet when some exec. was going to sign the check he saw a saab drive by and said dude, just put that trans in it... and so it was.

 

this... especially if you're stomping the gas in a low RPM

 

Let me just post up a log of it... seriously my turbo gets to full boost before my throttle body is open 100%

I'll use a thumbnail for easier browsing just click on it to expand...

You can see that I reach my max boost of 207.2 KPA when my throttle body is at like 96%... hence our stock turbos are the bees god damn knees muahahaha

 

vurry interesting...

shitty, but interesting

 

LOL yep, thats what you get when the world cars more about global warming than tire melting powa!!!!!!!!!!!!!!

 

Its really simple, just keep the boost up by accelerating against the friction created by the brakes. Its just braking lol, what's the proper way to brake lol.

Let's say on a 40 roll, go up to 45 or so, give it gas and keep the brakes on till you have full boost and going 40 mph, release the brakes and bam, insta-torque/power.

Lulz at damaging the brakes