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
SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
ATS-V draggy times
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="MachME" data-source="post: 16518204" data-attributes="member: 38217"><p>I would not replace the cam to compress the HPFP for 2 reasons</p><p>1. that is a lot of work</p><p>2. compressing the stock HPFP can damage it, it is not made for that. It can damage it physically but also if you demand too much pressure than it is made for, which is what you'll be trying to do with a tune. </p><p>3. Get a XDI HPFP, they make one for the ATS. The fuel pressure drop on DI cars is due to the rpm not spinning fast enough to hit the HPFP and also HPFP flow. The bigger HPFP will flow more fuel at lower rpm. Is the LPFP proven to be needed? Supplying the HPFP with more fuel is not going to help the HPFP or fuel pressure. If the high pressure desired vs actual is close to one another, the HPFP is being supplied enough fuel.</p></blockquote><p></p>
[QUOTE="MachME, post: 16518204, member: 38217"] I would not replace the cam to compress the HPFP for 2 reasons 1. that is a lot of work 2. compressing the stock HPFP can damage it, it is not made for that. It can damage it physically but also if you demand too much pressure than it is made for, which is what you'll be trying to do with a tune. 3. Get a XDI HPFP, they make one for the ATS. The fuel pressure drop on DI cars is due to the rpm not spinning fast enough to hit the HPFP and also HPFP flow. The bigger HPFP will flow more fuel at lower rpm. Is the LPFP proven to be needed? Supplying the HPFP with more fuel is not going to help the HPFP or fuel pressure. If the high pressure desired vs actual is close to one another, the HPFP is being supplied enough fuel. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
ATS-V draggy times
Top