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ZR-1 LT5 Under the Plenum

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  • ZR-1 LT5 Under the Plenum

    Started some maintenance work on the LT5; fuel injectors (16), coils, wires, plugs, starter....so on. Thought you guys might be interested in seeing some pictures since the LT5 is really a TPI at heart.







    sigpic

    88' Trans Am 350 TPI





  • #2
    I love the LT5 because its so not common. Have fun!!!


    Have any vids of your cars?
    1998 Chevrolet Camaro Z28 - 6 Speed

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    • #3
      Do you have any pics of your vette? Why did GM put 2 injectors in each cylinder?


      "ANY car can be an SS but ONLY a Camaro can be a Z28!" Scott S.

      "Owning a 9 second import is like coming out of the closet. At first you surprise everyone, but in the end you're still gay!"

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      • #4
        Originally posted by nascarnate326 View Post
        I love the LT5 because its so not common. Have fun!!!


        Have any vids of your cars?
        Not to mention expensive.

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        • #5
          Thanks for sharing! Pretty cool pics. I totally forgot you had that until now.

          1999 Pontiac Trans Am - LS1 - M6 - ITSSLOW - 12.998@109.59 - SOLD
          1994 Chevrolet Camaro
          - 3.4L - M5 - ITSSLWR - 16.558@85.38
          2003 Chevrolet Blazer
          2005 Yamaha R6
          2001 Yamaha YZ426F

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          • #6
            Man that thing is packed in there



            VicePresident of West Michigan Firebird Club
            A.K.A The Maverick
            http://www.cardomain.com/ride/660128/1
            93 TA Currently Under Construction AGAIN
            2007 2500 Chevy Silverado Crew Cab w/ 6.0L & 3.73's

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            • #7
              Originally posted by 02redz28 View Post
              Do you have any pics of your vette? Why did GM put 2 injectors in each cylinder?
              Because it has 2 intake ports and 2 intake valves to match.
              Craig
              Semi Retired Street Racer
              2012 Lava Red Mustang GT 5.0 MT82
              GONE BUT NOT FORGOTEN
              sigpic

              NBM `98 Formula M6 HdTp

              1 of 1 Build Date 3/12/98

              "Political correctness is a doctrine, fostered by a delusional, illogical, liberal minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

              "For you who believe all you read, I caution you - you are daily being brainwashed for profit by extremely effective psychology with very little regard to factual accuracy. In short, you're at the mercy of the world's greatest bullshit artists with the morals of a stray tomcat."
              - Smokey Yunick

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              • #8
                Originally posted by 9T8W66 View Post
                Because it has 2 intake ports and 2 intake valves to match.
                Design was based on need. The fuel injector technology in the 80's could not support both good idle and part throttle quality in addition to 7000RPM and 375hp. The design used small injectors for good fuel spray/control at idle then used the additional injectors when more fuel was needed. The "Power Key" shown below was a cool way to control the use of either 8 injectors - "Normal Power" or all 16 injectors - "Full Power". Under normal use, the motor ran on 8 Primary injectors until 3000RPM when the second 8 kicked in. It's a rush when the second 8 injectors kick in - like a shot of nitrous.


                Car pic:


                I've added some new parts: White fiberglass hardtop which IMHO looks 10x better than the acrylic top. Have a couple sets of 93' Sawblade Wheels (one year only design) and coming soon CCW Classic 17x11 and 17x12 with black centers. The Corsa Exhaust is a remarkable product as well.
                sigpic

                88' Trans Am 350 TPI




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                • #9
                  Probably feels like the old Six pack Mopars do when the two outer carbs kick in. Slams you back in the seat, Man what a rush!!!!!
                  Craig
                  Semi Retired Street Racer
                  2012 Lava Red Mustang GT 5.0 MT82
                  GONE BUT NOT FORGOTEN
                  sigpic

                  NBM `98 Formula M6 HdTp

                  1 of 1 Build Date 3/12/98

                  "Political correctness is a doctrine, fostered by a delusional, illogical, liberal minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

                  "For you who believe all you read, I caution you - you are daily being brainwashed for profit by extremely effective psychology with very little regard to factual accuracy. In short, you're at the mercy of the world's greatest bullshit artists with the morals of a stray tomcat."
                  - Smokey Yunick

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                  • #10
                    Damn - it does remind me of my TPI 305! That is very cool!
                    Gone but not forgotten: 1986 Chevrolet Camaro IROC-Z

                    "You shall ride eternal. Shiny and chrome."

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                    • #11
                      Little Update:
                      In the process of removing the cam covers for powder coating I discovered my motor has aftermarket intake camshafts. These are infamous Jeal EA22 cams and they will have to be removed which is best done with the motor out of the car.



                      sigpic

                      88' Trans Am 350 TPI




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                      • #12
                        Wow - really cool stuff there!!!
                        Gone but not forgotten: 1986 Chevrolet Camaro IROC-Z

                        "You shall ride eternal. Shiny and chrome."

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                        • #13
                          Why do they have to be removed?
                          - Brian Meissen
                          Owner, MiFBody.com
                          Administrator, LTxTech.com


                          1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
                          2022 Camaro LT1 - "Cherry Bomb 2"
                          Michigan FBody Meet & Greet Car Show 2022
                          June 4th, 2022 - 9am to 3pm!!!
                          The HUB Stadium, Auburn Hills, MI

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                          • #14
                            Originally posted by meissen View Post
                            Why do they have to be removed?
                            Jeal billets are soft as butter just beneath the surface, in the 30 rockwell range. The heat treatment just wasn't done correctly and the top hard layer is very very thin. Stock lifters are 62 or so. What eventually happens is the cam lobes scalop the lifters and everything goes to crap. I'm glad I caught it before damage was done.
                            sigpic

                            88' Trans Am 350 TPI




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                            • #15
                              that is very cool. Youre making me want one of these
                              -Joel
                              1995 Z28 M6 - AI226/234 - autocross ricer
                              1984 Scottsdale K10 - 305/4bbl/4spd


                              WTB List:Midwest Chasis DS Loop

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