Sean Gibbs

Ok had the car for about a month now as I do love it!!!
However as I become more comfortable with it and I am stating to get
more squirly with It and I feel the throttle response is a bit slow. I feel this will cause issues at higher speeds. Anyone know of a fix for this ? Does anyone else feel this way and is it just me over reacting?

Thanks in advance for your thoughts

MTPZ06

You may not be used to the "drive by wire" throttle response. I've seen some plug and play throttle booster deal that I think plugs into the OBDII port, but I really have no interest in a twitchy throttle. Others swear by a vendor "Chuck COW" and his throttle booster that re-maps the drive by wire tables in the computer. Supposedly a proprietary program that he developed. Do a search for him and decide for yourself if that's the right thing for you.

Bill Dearborn

How high of a speed are you talking about? Throttle response in 4th gear at 110+ is pretty good until you get over 150 and then it drops off since you are approaching red line and are several hundred rpm past the power peak.

Anything below that depends on the gear and how fast you put your foot down. The ECM will keep the throttle from opening too fast so you don't get too much air too soon. Pulling out to pass somebody while in third gear running at 85 to 90 will get your attention when you nail the throttle. Car will hit 123 on the limiter in 3rd and it happens fast and is easy to do when you are paying attention to cars around and in front of you. I usually shift from 3rd to 4th somewhere around 106 which gets you close to the peak HP rpm.

Bill

Sean Gibbs

Id have to say what brought it to my attention was the other day
I taped the throttle a few times to prepair to pull out on a busy road and it just felt like a delayed reaction.

DaOtherOne

This is the throttle response map changes COW does with his tune.

Sean Gibbs

Would doing this void my warranty? I do have a 4 year 48k from gm

beamg5

It just so happens that I spoke to Chuck on the phone the other day regarding his "Cow Booster" product. He told me not to worry a bit about warranty when using his product. Now remember, this was a "virtual quote" from Chuck - not GM !!

Another way to eliminate lag would be to consider a ported TB and/or CAI. These products, while not making for much in the way of measurable power (despite claims to the contrary,) DO, in fact, really contribute to a far more responsive pedal/throttle !!

Good luck !!

Gary

guido1205us

Man there are a lot of throttle threads today.

https://www.corvetteforum.com/forums...oller-wow.html

Woke my stock A6 car up. Doesn't touch ECU, removable, 9 sport settings, cheap - perfect first mod.

Sean Gibbs

is it difficult to install?

guido1205us

Nope.

Some where able to disconnect the throttle harness without removing the pedal assembly but I wasn't. Not a big deal, just loosen the two bolts to un-mount the assembly, unlock and disconnect the harness, plug in the unit, mount the throttle assembly back, tuck unit and wires, figure out a mount for the head unit (I velcro underneath exactly like in the thread), programmed it for SP6 and enjoyed my new driving - in fact I'm going to go for a run in a few minutes

It's all in the thread.

0Chuck CoW

Ported throttle bodies are a complete waste of money and additionally can cause lots of idle and drive problems.

People that sell Doo-Dads on the forms usually sell them because they are cheap and can usually be installed at home....

Talk to any of the good reputable tuners on the forum and they will usually discourage the use of ported throttle bodies...

While "porting" sounds like a GOOD thing to do... It's a full length thread/discussion to explain why it's a bad idea.

Do some research.
Chuck CoW

REDZED2

4.10's in my old C5Z took care of DBW throttle response... Yep you just have to get used to it in the C6Z.. some days are better than others.. A cammed and modded motor helps as well. My buddies throttle response feels like a solid mounted rod attached to the gas pedal. (think old school hotrod carbed).. Stock is what it is.

guido1205us

I did - are you saying these guys are unreliable?

Dyno Results

Configuration 1.
Baseline: stock intake, stock throttle body, stock calibration: 363.80 rwhp/354.22 rwtq

Configuration 7.
VMax ported throttle body with stock tune: 377.83 rwhp/366.97 rwtq

http://www.superchevy.com/how-to/vem...olet-corvette/

+14 rwhp on a stock tune for $150 seems like a good value proposition to me.

zdeckich

So a ported FAST and ported TB to match is a bad idea even though it is proven to make more power?

REDZED2

Heck the first mods to my c5 z were ported TB and headers. you could tell the throttle response was MUCH improved. It will on any car, just like a ported and blueprinted carb. It is the first thing you feel when you crack open the throttle. Any LS motor will benefit even without a retune or MAF adjustments. Just from my experience.

MTPZ06

I cant speak for Chuck, so I can only assume...but I'm guessing the point he is trying to make is that not all "porting" jobs are the same. There's more to porting than air flow. Things like turbulence, velocity, etc. play a part...so finding someone that knows what they are doing with proven results is obviously a must. I've seen guys have their heads ported to only lose HP...so "proven results" (time and time again) would be my disclaimer.

guido1205us

Makes sense, and the reason I won't send in my cores.

0Chuck CoW

A ported fast.....might help a bit, provided you have enough engine mods (more than just a cam) which most people don't.

A larger throttle body slows down the airflow at low speed and lower rpms making the tuning more

difficult and idle and decel less stable. For those of you whose cam cars surge on the highway, a fast 102 will only make it worse.

Let's step back from high school auto mechanics a bit.... BIGGER IS NOT ALWAYS BETTER.

WAY WAY too many people still don't know this.

Why would you buy and port a FAST 102 for your stockish motor for in excess of $1,000. and only gain a few horse

and potentially create drivability problems???

There are way better things to spend that money on in most cases.


Back to larger and ported throttle bodies, 95% of the time big waste of money.


I totally get it.... They are cheap and you can do them at home even if you have no tools.

SO, everyone does it. That does not mean it's right or works.

Some of them look like artwork when they are done.... Some look like they were ported with a chain saw.

Either way, they do next-to-nothing for performance.

Again, the money is better spent elsewhere.

Back in highschool, the 750 Double pumper holley you had on your 305 camaro, didn't help performance....

Even though everyone thought it was a great idea.

Too bad most people will never know how much MORE they can get with LESS big ideas.

Chuck CoW

0Chuck CoW

People like porting....and it sounds like a great idea....

Again, 95% of the people buying the services.... Don't really get much (if anything) from it.

MAX EFFORT builds and vehicles actually DO benefit from it.... Not huge, but it does help where every little bit matters

and money is not the limiting factor.


BACK TO THROTTLE RESPONSE:


If you want the most popular, proven, reliable solution for your lazy electronic throttle.....

CoW BOOSTER! is the only way to go. And right now, it's as much as $99 and many people got it this week for FREE.

You can too.

No wiring, no control box to mount, no unnecessary nothing.

Simple, SAFE, POWERFUL, PROVEN, .....and FREE!
Chuck CoW

REDZED2

I have no doubt Chucks device works, everyone mostly has had a TB ported by a name person. Where simplistically not a lot of material is removed and more work in done on the blade and port past entry. I had Shaner do mine back in the day. he was the only guy back then. It isn't gonna get you more than 5-7 hp (not the reason) but there is now little to zero delay afterward. Chuck I'm sure your device does the desired effect for what the customer wants as well.