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Thread: The Bo0sted Bastard

  1. #16
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    Probably the biggest part of the build I am least happy with. The Down pipe.

    MSGR_PHOTO_FOR_UPLOAD_15324853 81868.jpg_1532485394254 by Cheapthrillb2, on Flickr

    MSGR_PHOTO_FOR_UPLOAD_15324854 01788.jpg_1532485408224 by Cheapthrillb2, on Flickr

    MSGR_PHOTO_FOR_UPLOAD_15324854 24121.jpg_1532485429754 by Cheapthrillb2, on Flickr

    I retained the factory trans cross member. It just required min. modification to the trans mount area and you flip the cross member and it bolts right in and works.

    MSGR_PHOTO_FOR_UPLOAD_15324864 45157.jpg_1532486447995 by Cheapthrillb2, on Flickr

    I opted for a loud valve, dumps right under the pass. seat. Its boost operated with a on/off switch. Once boost hits about 2-3psi the opens and dumps the exhaust.

    MSGR_PHOTO_FOR_UPLOAD_15346299 74397.jpg_1534629976011 by Cheapthrillb2, on Flickr

    I ended up taking the orig. dash trim piece the previous owner had modified and used that. So I still have the unmodified piece I had bought in a box.
    20180908_182851 by Cheapthrillb2, on Flickr


    You might ask why two mufflers or why I did the exhaust that way. My intent was to make the car seem as stock as possible. I intended to run dual pipes out the back and retain the factory tail tips. MY hope was to make the car seem as stock as possible just sound like a marauder with loud mufflers.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  2. #17
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    20180823_095041 by Cheapthrillb2, on Flickr

    After I got it running I ended up adding the tailpipes to it, and just didn't like the way it had changed the exhaust note. So I removed them and just put turn downs on the muffler. This winter I plan to redo the exhaust.


    At initial measuring and appearance it had appeared the hood wouldn't clear the truck intake and I didn't want to change to a car intake. So i opted to put a small scoop on the hood to clear it.

    MSGR_PHOTO_FOR_UPLOAD_15350433 76746.jpg_1535043378493 by Cheapthrillb2, on Flickr

    MSGR_PHOTO_FOR_UPLOAD_15352148 25145.jpg_1535214828419 by Cheapthrillb2, on Flickr

    But after cutting the hood, i think it may have cleared with just removing key parts of the underhood bracing. I have another black stock hood. I may change the hoods over down the road. I am not sure. GLassClass makes some nice hoods, I may opt for one of them as well. But i've read alot bad reviews so i'm uncertain
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  3. #18
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    Unfortunately I didn't reach my goal. I didn't have the car ready by the Metro cruise weekend. I gotten it to run but not enough to drive. I ended up being a week or so late. But I did end up getting to take my dad from the hospital for a few hours and did the cruise in my King Ranch with him.

    I decided to continue on and atleast get a few weeks in this year driving it.


    Engine bay ended up pretty sloppy, I have every intention of cleaning all that up this winter as well as hooking up ac etc. That air filter setup didnt last but a few road trips before I did that alot better lol.

    20180828_152113 by Cheapthrillb2, on Flickr

    20180826_163929 by Cheapthrillb2, on Flickr



    I drove it for a weeks working on the tune. We've Kept it pretty safe as far as timing and air fuel. I've got it up to 16.5psi in boost. Its a hell of a handful that's for sure.

    Taken it to the track a couple times before the season ended.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  4. #19
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    First trip out to the track I obviously had traction issues launching. So the 2nd trip to the track I picked up some drag radials..... The 4.10 gears gotta go though, probably drop back down to 3.55s (should of left well enough alone lol).

    20180927_160105 by Cheapthrillb2, on Flickr

    20180927_160059 by Cheapthrillb2, on Flickr

    visited the track with my little brother (that p71 was bought off a member here a few yrs ago).

    20180929_122241 by Cheapthrillb2, on Flickr

    Fastest pass to date. I was the loser. I ran up against a Hell Cat. I ran him twice. The first time he red lighted BAD. I think he was nervous :sonicjay:
    url=https://flic.kr/p/2c58tfr][/url]20181204_222038 by Cheapthrillb2, on Flickr

    December 9, 2018 - YouTube
    video of that pass above
    I did end up at the dyno, not one I usually use. But the only one I could find to get on. I wasnt thrilled with both the results and how he was doing it. He wouldn't lock the converter for a pull (my TC can handle it). I felt he was starting the pull to high in rpms. I see 16-16.5 psi in the car, he was only getting me up to 13 psi. And he was cutting the pull off early in rpms. The car sees 6800+ at the track, he was cutting me off at 6400 and I was still making power at 6400. I paid for 3 power pulls, no tuning. He was having issues with his machine. I think he ended up making 6 or 7 pulls before hiting that below. Which you can see in the graph it clearly was reading correctly.

    20181031_163446 by Cheapthrillb2, on Flickr

    It can do better. We've found my 4l80 has a poopy long 2-3 shift no matter what changes we make in the tune. I am not spinning yet at launch with the radials, and we think with the 3.55's I gain a little more as well. Anxious to see what the spring will bring, cant wait. I had so much fun hurting feelings at the track. Car did pretty much exactly what I hoped it would be. Fast, fun, and unsuspecting. I think i've made 15-20 passes between the two trips to the track. The after race "whats you got going on with that" conversations were priceless. But my favorite was beating alot of the mustang coyote and dodge srt8 guys. I think i put around 4000 miles on the car in the short time I had it running this fall and no real issues to speak of.


    My winter plans are

    3.55's
    fix a spot in the trunk that rusted from a bad seal
    Clean up the stereo
    Clean up the engine bay
    Probably do something with the exhaust
    Ive got all the ford stuff working on car except the cruise and the temp gauge
    Air Conditioning
    Upgrading the frt brakes lol, stopping at the track isn't easy lol, frts get to hot to fast
    And if funds allow a new paint job.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  5. #20
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    Pic from early on getting it going. The street tires are a joke on launches. Pretty m uch just instant red line on rpms and I have to back out. Its fun having a car you dont need to power brake to do a decent burnout. Pretty much stab the throttle and once boost hits the tires are gone.
    20180909_151854 by Cheapthrillb2, on Flickr

    I did have one issue early on. The hooker crossover pipe flex cracked and broke on me. I ended up cutting it out and put a solid piece in for now. They are warranting it out for me but i'm uncertain if I want to run another again and take the chance of it cracking.

    MSGR_PHOTO_FOR_UPLOAD_15363214 48431.jpg_1536321450032 by Cheapthrillb2, on Flickr
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  6. #21
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    LS turbo marauder Martin test and tune - YouTube


    some crappy video from the first time out at the track, this was on the street tires not the drag radials. Experimenting with launching. Unfortunately I could not launch under any boost lol.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  7. #22
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    I plan to be at 131 motorsports Park in Martin Mi a fair bit next year .



    Got some new rear arms, should help plant it a bit better
    And new gears as well.
    Attached Images Attached Images
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  8. #23
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    I am trying to support some of the mm. Net community. These are currently off to Joe getting fixed.

    I got the big brake brackets on the shelf
    https://www.mercurymarauder.net/foru...ht=adding+tags
    Obviously used Marty o for my Ford tuning, unfortunately though I do all my own LS tuning.

    And I'm sure I'll be using a few other guys for various things on my car as time passes.
    Attached Images Attached Images
    Last edited by cheapthrillb2; 12-23-2018 at 08:42 AM.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  9. #24
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    December 16, 2018 - YouTube



    poopy dyno pull. Can't wait to get back on a dyno I know, and see what it really can do at full boost.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  10. #25
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    I made a few collage pics of at purchase and mostly to date.

    20181211_110859 by Cheapthrillb2, on Flickr

    20181211_111412 by Cheapthrillb2, on Flickr

    20181211_111642 by Cheapthrillb2, on Flickr
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  11. #26
    Join Date
    Jul 2004
    Location
    The Dirty South
    Age
    52
    Posts
    3,836
    Interested to know what you did to keep the DBW. What type of pedal mods?
    Also interested to know how you kept the MM cluster. What mods to make the VSS work?

  12. #27
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    Quote Originally Posted by musclemerc View Post
    Interested to know what you did to keep the DBW. What type of pedal mods?
    Also interested to know how you kept the MM cluster. What mods to make the VSS work?

    My harness and ecm were dbw, but i converted my harness and tune to be dbc. I retained the marauder throttle cable and marauder pedal.


    My jeep has a lq9 (6.0L) with dbw. I just modified the pedal itself off the bracket to fit the floor of the jeep. Pretty simple.


    I had reached out 96gt4.6 here on mm. Net on the cluster stuff.
    bought Dakota digitial converter boxes for the tach and speedo. Tach was easy to setup, but the speedo ive been struggling with. I got it pretty close so far just needs some refining.

    Using the marauder ect sensor and factory wiring bypasses the ecm to the cluster.
    Last edited by cheapthrillb2; 12-23-2018 at 09:21 AM.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  13. #28
    Join Date
    Mar 2008
    Location
    Next door to my neighbor
    Age
    50
    Posts
    20,353
    Outstanding job as I said before!


    Sent from my iPhone using Tapatalk Pro
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  14. #29
    Join Date
    Dec 2014
    Location
    Hastings, mi
    Age
    43
    Posts
    344
    Thanks, I got alot to clean up and detail this winter. Pretty embarrassed how sloppy the underhood is lol.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
    #BSTDMRC #LSSWAPPEDMARAUDER
    Instagram -
    Cheapthrillb2
    lsswappedmarauder

  15. #30
    Join Date
    May 2011
    Location
    Schenectady, NY
    Posts
    1,246
    Looks great man!
    300A Black
    4:10 gears, Flowmaster 44's with rear cat delete, SW headers with 3 inch cats to 2.5 custom h. 3500 stall, Twisted synergy dyno tune, addco f/r , rear control arms, Novi 1200 air to air with the fixings.

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