Results 1 to 6 of 6

Thread: Eaton pulley combo for pump gas

  1. #1
    Join Date
    Jan 2016
    Location
    South NJ
    Posts
    459

    Eaton pulley combo for pump gas

    I built engine with 4032 flat top pistons, roadrunner rods and the stock crank.

    My eaton came with a 2.76 inch pulley on it, which I do not plan to use. I bought a -2 lb lower pulley with the intent of finding a 3.4 inch upper pulley to net around the stock boost level. I'm having trouble finding a 3.4 inch pulley now, so I'm looking at other options. Anyone out there having success with a 3.1 inch pulley and -2 lb pulley, running 93 pump gas? I have a calculated 10.7:1 static compression.

    I think a 3.1 and -2 lower equates to about a 3.4 upper and the stock lower pulley. Open to all your experiences to ensure I put the right pulley on this.

    Sent from my SM-G930U using Tapatalk
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  2. #2
    Join Date
    Sep 2008
    Location
    B'lo, NY
    Age
    40
    Posts
    380
    Probably wont help but just FYI, Im running a +2lb lower and stock 3.6 upper with a Stiegemeyer Stage 6 port and Stainless Works long tubes and it makes ~11psi with a stock motor.
    2004 Silver Birch w/moonroof. "Isabelle"


    Eaton swapped summer/fall 2015 with all the gooddies, tune by the one-and-only Marty-O +2psi pulley, Steigemeyer stage 6 port, SWLT, custom ss exhaust, Borla ProXS, Addco sway bars, TCE s/s brake hoses, Hawk HPS pads, Zack big brak kit, J-mod, battery in trunk, full custom audio (never used, blower whine sounds better)

    To do list:
    HID headlights, LED interior/exterior, courtesy "3-flash" turn signals, widen wheels, rear deck wing, marauder stencil on cmhsl? bumper cover inserts? deck lid, steering whee, hood liner godshead, more power!

  3. #3
    Join Date
    Jan 2016
    Location
    South NJ
    Posts
    459
    Quote Originally Posted by dmjarosz View Post
    Probably wont help but just FYI, Im running a +2lb lower and stock 3.6 upper with a Stiegemeyer Stage 6 port and Stainless Works long tubes and it makes ~11psi with a stock motor.
    Great info. Are you running pump gas?

    Sent from my SM-G930U using Tapatalk
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  4. #4
    Join Date
    Oct 2005
    Location
    West 'burbs Chicago
    Age
    36
    Posts
    3,823
    3.1 upper and stock lower yields about 11psi here, was on factory compression, but now will run a bit less after rebuild.
    -----------------------------------------------------------------------------------

    '04 Marauder #357 of 3213 - Built and Eaton swapped - "MERCD"
    '21 F150 XLT 5.0 Sport
    '18 Chevy Malibu Redline
    '15 Mustang GT, performance package
    '01 BMW 740i M-Sport, manual swapped
    '97 Lincoln Town Car (black on black)
    '10 Harley Ultra Limited
    '08 Kawasaki ZX6R
    '03 Grand Marquis(sold)

  5. #5
    Join Date
    Jan 2016
    Location
    South NJ
    Posts
    459
    Quote Originally Posted by ChiTownMaraud3r View Post
    3.1 upper and stock lower yields about 11psi here, was on factory compression, but now will run a bit less after rebuild.
    Nice. I think a 3.2 sounds about right for me then considering I have the under drive lower. Trying to keep it around 8 psi

    Sent from my SM-G930U using Tapatalk
    2003 Marauder 300A
    #2928 of 7838
    Build date: 8/6/02
    Ship date: 5/28/03
    14.33 @ 96.82 with OLD engine
    6R80 swap in progress

    1968 Chevelle
    NA/Pump Gas 10.4 @ 128 mph
    416/4L85E LSA Supercharged build underway

  6. #6
    Join Date
    Mar 2008
    Location
    Next door to my neighbor
    Age
    50
    Posts
    20,353
    93 is good to around 19#s I’ve been told. I flirt with 19-21 on 93 almost every week it’s driven, but that’s also on a lower compression Cobra block.

    I’d be more worried about over spinning that roots with a 2.anything upper. My old Trilogy set up was first stock pulleys (yawn) then a 3.2 upper, only 2 psi added but definitely better, finally a 2.8 upper and +4 lower on 93. I pegged my gauge so I upgraded to a 0-30 and saw a consistent 20#s of heat being made and only made 461 over the 3.2/stock lower that made 445 if I recall..

    I’ve never heard of a -2 lower?


    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.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. THE MARAUDER CENTRIFUGAL PULLEY /BOOST COMBO THREAD
    By Jeronimojc in forum Power Adders
    Replies: 117
    Last Post: 04-30-2017, 01:13 PM
  2. Pulley combo with ported eaton and long tubes
    By dmjarosz in forum Power Adders
    Replies: 16
    Last Post: 04-04-2015, 12:51 PM
  3. Wanted To Buy Eaton swap: crank hub adapter, 2# pulley, fuel pump, intercooler
    By chief455 in forum Marauder Parts/Misc. Wanted
    Replies: 4
    Last Post: 02-22-2014, 08:45 AM
  4. Water Pump and Pulley
    By MrHall1 in forum Shop Talk
    Replies: 7
    Last Post: 05-13-2013, 10:06 AM
  5. Replies: 26
    Last Post: 05-09-2012, 05:34 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •