C7 throttle response?
Thread Starter
4th Gear
Joined: Dec 2017
Posts: 4
Likes: 1
C7 throttle response?
Hi, I have a 2017 grand sport, 3K miles manual transmission running in tour mode, traction control on.
For the first time today, I noticed a delay in throttle response. I was idling at a light when I pump the throttle there is no response. I have to press and hold for a second or two before she revs.
Also, when driving if I put the clutch in and pump the throttle, the RPM, are very slow to not only go up, but also very slow to come down.
Any idea why this is happening all of a sudden?
For the first time today, I noticed a delay in throttle response. I was idling at a light when I pump the throttle there is no response. I have to press and hold for a second or two before she revs.
Also, when driving if I put the clutch in and pump the throttle, the RPM, are very slow to not only go up, but also very slow to come down.
Any idea why this is happening all of a sudden?
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Joined: Oct 2013
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From: Kansas City, Missouri
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St. Jude Donor'15
CT, that doesn't sound right. I did get a ported throttle body. I've never had an issue with delayed response on my car, even before the ported throttle body. On a manual transmission, you'll have to get the RPM's up in order to drive a little. But a ported throttle body will give you intense power at about 3,000 to 3,500 RPM's.
Thread Starter
4th Gear
Joined: Dec 2017
Posts: 4
Likes: 1
CT, that doesn't sound right. I did get a ported throttle body. I've never had an issue with delayed response on my car, even before the ported throttle body. On a manual transmission, you'll have to get the RPM's up in order to drive a little. But a ported throttle body will give you intense power at about 3,000 to 3,500 RPM's.
Drifting
Joined: Nov 2013
Posts: 1,503
Likes: 600
Or you could get the Vitesse throttle controller... It takes away that slow response.... I actually have mine on Economy mode LEVEL 2 (EC2) it still makes the response better but it gives a more linear pull from the engine, and way less "hunting" in normal street driving scenarios..
http://www.vitesse-motorsports.com/e...orvette-c7.htm
http://www.vitesse-motorsports.com/e...orvette-c7.htm
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Drifting
Joined: Jun 2000
Posts: 1,872
Likes: 294
From: St. Louis MO
Or you could get the Vitesse throttle controller... It takes away that slow response.... I actually have mine on Economy mode LEVEL 2 (EC2) it still makes the response better but it gives a more linear pull from the engine, and way less "hunting" in normal street driving scenarios..
http://www.vitesse-motorsports.com/e...orvette-c7.htm
http://www.vitesse-motorsports.com/e...orvette-c7.htm
Race Director
Joined: Mar 2001
Posts: 19,984
Likes: 6,783
From: Bonneville Salt Flats
If it just started it's obviously NOT the stock throttle-body. Has the problem continued? If not, has it recurred? If it has, can you get it to a dealership while it is acting up?
Thread Starter
4th Gear
Joined: Dec 2017
Posts: 4
Likes: 1
