Announcement

Collapse
No announcement yet.

the Gran Damn

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    not a ton of progress I welded the trans mount to the frame, I may add a support to the underside, because I had to cut down part of the rear gusset to fit the LCA bolt in. I started laying out the new brake lines, and was starting to get super frustrated, it took an embarrassingly long time for me to figure out the issue. The reman front right line is two pieces instead of one, and they sent me two of the caliper side, and not one of the ABS module side... I emailed inline tube, and they sent me the correct part.




    this is the flange for the rear pipe, notice the huge gap between the pipe and the flange? filling it with weld was an option, but I had a trick to try first...



    I slipped the end of the pipe onto a 2" hitch ball, gave it a few good whacks with a hammer...



    TA-DA! no more gap.




    I started by extending the front pipe back, then carefully made a rear pipe to meet up with it.



    unfortunately, the new rear pipe didn't clear the heat shield that I had neglected to install when I made it....so I cut it apart and started over...

    after paying more attention to the spatial constraints imposed by the heat shield, I came up with this:



    overall, it's very similar to what I had before, just repositioned, and slightly longer than the previous. ideally, I wanted both head pipes to be the same length, or somewhat close, at this point, the front is a few inches longer, maybe 3-4, but much closer than stock.

    by balancing the pipe lengths, the exhaust pulses should merge with each other a little bit better, and minimize "crowding" in the rest of the exhaust past the Y pipe. I don't expect this to make a significant performance improvement, but I suspect it will change the tone of the exhaust some. my current plan is to y them together at the current end of the rear pipe, and tie them into the factory exhaust which should be close by.
    "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

    Comment


    • #17
      I think the exhaust setup should help quite a bit over the stock manifolds. I'm thinking of using both front and rear G6 manifolds with a custom crossover and Y on my Grand Am.
      1999 Olds Alero 2.4 to 3500 swap (running). totaled by a honda
      1992 lumina 4 door 3500 3spd auto 15.020 @93.5 mph
      1984 Cavalier type 10 hatch 3100 5spd!!!
      14.96@91.47 in the 1/4
      9.63@74.36 in the 1/8th
      14.30 on slicks! scrapped due to rust!

      Comment


      • #18
        Got a nice metal forming tool on the back of the truck Are you looping the rear exhaust for the angle, equal length, or? I don't know what the U turn is stock but I remember reading people getting rid of something on the stock 3900 G6 setups.
        Ben
        60DegreeV6.com
        WOT-Tech.com

        Comment


        • #19
          it was looped for two reasons, one, equal length, and 2, because it was a little easier to package that way. in theory, it should smooth the pulses as the merge in the Y pipe since it's an even fire engine, which should make better use of the stock piping diameter from the Y back. I was going to finish up the Y pipe today, but elected to work on the Fiero instead. tomorrow, I'll either finish the pipe, or finish what I started on the Fiero.

          I'm really curious how the whole car will perform when I'm done with all of this... Heads, intake, exhaust, a few other things... the Five speed, new swaybars, ball joints, tierods, struts... it'll be a new car!
          "I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."

          Comment

          Working...
          X