Floor-it and wait?
Thread Starter
Navigator
Joined: Aug 2012
Posts: 9
Likes: 0
From: Ohio
Floor-it and wait?
Just bought my first vette ... my father had several. Is it normal when I floor my stock '02, that I experience a brief (for lack of a better word) "pause", before it takes off? I get immediate response in normal driving. But when flooring-it, seems like the engine takes in a deep breath before taking off full speed. Does that make any sense?
The car is a2002 with 27k, and no mods. The car was only driven on weekends and probably never very hard. Is this "pause" just a chance for me to hold on tight for what is about to come?
Also, if I may ask. If I add a cold air kit should I add a MAF, and should I then get it re-coded? Thanks
The car is a2002 with 27k, and no mods. The car was only driven on weekends and probably never very hard. Is this "pause" just a chance for me to hold on tight for what is about to come?
Also, if I may ask. If I add a cold air kit should I add a MAF, and should I then get it re-coded? Thanks
Racer
Joined: Mar 2011
Posts: 449
Likes: 8
From: Hayes Virginia
I have a 2002 Z51 Coupe with 31k on the clock and the car is bone stock except for the K&N filter and I have no delay what so ever when I mash the gas pedal to the carpet. It only has been a couple of times that I have done that as I really baby the car but no issues here.....
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
You may need to work on throttle response. Opening up the intake like you plan can help. Not the MAF though, waste of time unless its a really high power vehicle. Also porting and polishing the throttle body can do allot too.
It is possible that your TB and intake are very gunked up with oil etc. impeding flow, or a very dirty air filter. Id start with removing parts and cleaning/inspecting. Running fuel system cleaner and all that too.
It is possible that your TB and intake are very gunked up with oil etc. impeding flow, or a very dirty air filter. Id start with removing parts and cleaning/inspecting. Running fuel system cleaner and all that too.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
1st leave the MAF alone !! sevaral posts on the forum why--
GM puts PE or power enrichment delays into the stock tune --more for safety reasons
It can be as much as 3 seconds- Also they have a Torque manangent system that is for safety as well--It is supposed to prevent tire spin--but it is so sensitive it can remove timing simply on a hard launch with no spin
Another table that can cause delays is the "pedal TQ limit reduction" this table limits the throttle opening less than 100% even though you've floored it
These issues can be corrected with tuning--
GM experiemnted with different settings on different years of cars with these tables--Some years are better than others--
GM puts PE or power enrichment delays into the stock tune --more for safety reasons
It can be as much as 3 seconds- Also they have a Torque manangent system that is for safety as well--It is supposed to prevent tire spin--but it is so sensitive it can remove timing simply on a hard launch with no spin
Another table that can cause delays is the "pedal TQ limit reduction" this table limits the throttle opening less than 100% even though you've floored it
These issues can be corrected with tuning--
GM experiemnted with different settings on different years of cars with these tables--Some years are better than others--
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Racer
Joined: May 2012
Posts: 281
Likes: 1
From: Cape Coral Florida
mine does that too.and it wont shift unless i lift.if i only press down about 25 to 30 % and its so different.it will pull harder than when i press down further. its a led sled and NOT impressive at all. what will it cost approximately to correct ??
Instructor
Joined: Feb 2010
Posts: 108
Likes: 0
From: Roseville California
Just bought my first vette ... my father had several. Is it normal when I floor my stock '02, that I experience a brief (for lack of a better word) "pause", before it takes off? I get immediate response in normal driving. But when flooring-it, seems like the engine takes in a deep breath before taking off full speed. Does that make any sense?
The car is a2002 with 27k, and no mods. The car was only driven on weekends and probably never very hard. Is this "pause" just a chance for me to hold on tight for what is about to come?
Also, if I may ask. If I add a cold air kit should I add a MAF, and should I then get it re-coded? Thanks
The car is a2002 with 27k, and no mods. The car was only driven on weekends and probably never very hard. Is this "pause" just a chance for me to hold on tight for what is about to come?
Also, if I may ask. If I add a cold air kit should I add a MAF, and should I then get it re-coded? Thanks
The traction control would do exactly what you described. Try pressing the tiny button in front of the center console.
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
Oh, and I tried a Superchip for this. Did not work at all.
Last edited by NukeC5; Aug 20, 2012 at 01:36 PM.
Team Owner
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
Thread Starter
Navigator
Joined: Aug 2012
Posts: 9
Likes: 0
From: Ohio
You can have your shift points tuned for around 150 at a tuner shop. Sounds like you need that. I did after switching gears. I would redline and bounce there without shifting if I floored it. In every gear too. It just took 20 minutes for the shop I go to to make corrections and test drive. Now it shifts perfectly when floored.
Oh, and I tried a Superchip for this. Did not work at all.
Oh, and I tried a Superchip for this. Did not work at all.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
