Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
SVT Shelby GT500
Boost at minimal throttle - normal?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="fullboogie" data-source="post: 13414393" data-attributes="member: 23633"><p>We're chasing a hesitation at throttle tip-in, both from a dead stop and at gear changes, when the car is dead cold. Going half throttle from a dead stop when it's cold will even make it nose over and then recover. There doesn't appear to be any issue once the car is warmed up. I've noticed that it requires only the slightest amount of throttle before boost starts registering on the stock gauge - maybe as little as 1/8 or 1/4 throttle and it'll show a few pounds to 5 pounds of boost. Let's leave MAF transfer tune issues off the table, because the tuner is a credible and experienced guy, and we've discussed this and ruled it out.</p><p></p><p>Three questions then - </p><p></p><p>1) Is it normal to show an onset of boost at such slight throttle input? I remember it took about 1/2 throttle or more to see anything with my Lightning. I'm running a TVS with 2.4" pulley, if that matters.</p><p></p><p>2) Can this issue be caused by a misadjusted bypass valve? To be honest, when the TVS arrived I threw it on the car without bothering to check the adjustment.</p><p></p><p>3) If it is the bypass valve, what is the correct adjustment procedure?</p><p></p><p>Any thoughts are much appreciated.</p></blockquote><p></p>
[QUOTE="fullboogie, post: 13414393, member: 23633"] We're chasing a hesitation at throttle tip-in, both from a dead stop and at gear changes, when the car is dead cold. Going half throttle from a dead stop when it's cold will even make it nose over and then recover. There doesn't appear to be any issue once the car is warmed up. I've noticed that it requires only the slightest amount of throttle before boost starts registering on the stock gauge - maybe as little as 1/8 or 1/4 throttle and it'll show a few pounds to 5 pounds of boost. Let's leave MAF transfer tune issues off the table, because the tuner is a credible and experienced guy, and we've discussed this and ruled it out. Three questions then - 1) Is it normal to show an onset of boost at such slight throttle input? I remember it took about 1/2 throttle or more to see anything with my Lightning. I'm running a TVS with 2.4" pulley, if that matters. 2) Can this issue be caused by a misadjusted bypass valve? To be honest, when the TVS arrived I threw it on the car without bothering to check the adjustment. 3) If it is the bypass valve, what is the correct adjustment procedure? Any thoughts are much appreciated. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
SVT Shelby GT500
Boost at minimal throttle - normal?
Top