How much lift is possible? - FirebirdV6.com/CamaroV6.com Message Board

Announcement

Collapse
No announcement yet.

How much lift is possible?

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • #1

    How much lift is possible?

    How much lift can you run on the 3.8 before you have to worry about valve to piston clearance?
    <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>
    Tags: None
  • #2
    Depends on the duration.

    At .520 lift you start to press on the valve seals if you did not mill the pedastals.
    Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

    Comment

    • #3
      so with a lift of .528, you would advise on getting the heads milled? .02?
      - \"So you have something to look at when you\'re talking to \'em\" - <br /> <a href=\"http://www.cardomain.com/member_pages/view_page.pl?page_id=296916\" target=\"_blank\">http://www.cardomain.com/member_pages/view_page.pl?page_id=296916</a>

      Comment

      • #4
        .528 should be ok..

        PEDASTALS.. not the heads.. the valve pedastals is where the valve seal sits on.
        Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

        Comment

        • #5
          right...
          - \"So you have something to look at when you\'re talking to \'em\" - <br /> <a href=\"http://www.cardomain.com/member_pages/view_page.pl?page_id=296916\" target=\"_blank\">http://www.cardomain.com/member_pages/view_page.pl?page_id=296916</a>

          Comment

          • #6
            Hmm. I'd think it'd be over .520". My cam at .528 doesn't cause this to my knowledge, and I say this only because my car doesn't have any sort of oil consumption issues.
            <a href=\"http://www.fullthrottlev6.com\" target=\"_blank\">www.fullthrottlev6.com</a> THE SOURCE!

            Comment

            • #7
              darn that is lousy for you guys...
              our V6 Ford stuff can endure .650"
              and stil have the .050" minimum
              covered easily. Chevy valvetrain
              is usually pretty good in most areas.

              Comment

              • #8
                RGR, thats the thing it isn't a Chevy motor its a Buick, these motors don't even adhere to the normal chevy bolt patterns.
                3.42 gears w/ LSD,<br />Headers, Cat delete, Loudmouth,<br />SLP intake, K&N, Whisper Lid, <br />EGR delete

                Comment

                • #9
                  i know about milling the pedestals and they will be when i port my heads but i wanna know before valve to piston clearance problems, thanks!
                  <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>

                  Comment

                  • #10
                    duration and lift are.... ??????

                    I've heard of guys running 224 duration with .605 lift
                    Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

                    Comment

                    • #11
                      ill probably run around 212-216 @.050 and I want to run atleast .560 lift and maybe more if the heads will flow more...ill know more what cam i have after i port the heads and do some playing around on the flow bench...

                      [ December 11, 2003: Message edited by: WickEdSix9838 ]</p>
                      <b>Black</b> 1998 Pontiac <i>Firebird</i> A-4 swap<br />271.4rwhp/259.4rwtq NA<br />13.30@102.44 <br /><a href=\"http://www.freewebs.com/wickedsix98\" target=\"_blank\">www.freewebs.com/wickedsix98</a>

                      Comment

                      Previous template Next

                      Latest Topics

                      Collapse
                      View All

                      FORUM SPONSORS

                      Collapse
                      Working...
                      X

                      We process personal data about users of our site, through the use of cookies and other technologies, to deliver our services, personalize advertising, and to analyze site activity. We may share certain information about our users with our advertising and analytics partners. For additional details, refer to our Privacy Policy.

                      By clicking "I AGREE" below, you agree to our Privacy Policy and our personal data processing and cookie practices as described therein. You also acknowledge that this forum may be hosted outside your country and you consent to the collection, storage, and processing of your data in the country where this forum is hosted.

                      I Agree