Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
'77 Bronco 4bt Conversion
#22
The little 3.9L 4bt is tagged at a whopping 105hp @ 2,500RPM... and 260 lbs/ft of torque @ 1,700RPM.

Hope to some day take it to around 180hp and 400 ftlbs of torque. I plan to stay with the Bosch VE pump but will change out the turbo or modify the current turbo for increased rotor speeds (boost pressure).

It won't be able to take on those Ford engines in a race...but it should provide low rpm torque.
'77 EB, 2.5" SL, 2"BL, Cummins 4bt, C4 w/Art Carr manual Valve Body, 35" BFG KM2s
http://www.youtube.com/watch?v=M_HqhiW38ik
Reply


Messages In This Thread
'77 Bronco 4bt Conversion - by High Pressure - 04-08-2008, 06:45 AM
'77 Bronco 4bt Conversion - by chuzie - 04-08-2008, 09:35 AM
'77 Bronco 4bt Conversion - by bucketobolts - 04-10-2008, 11:08 AM
'77 Bronco 4bt Conversion - by cuz1 - 04-10-2008, 04:18 PM
'77 Bronco 4bt Conversion - by bucketobolts - 04-10-2008, 09:52 PM
'77 Bronco 4bt Conversion - by High Pressure - 04-11-2008, 06:20 AM
'77 Bronco 4bt Conversion - by High Pressure - 04-11-2008, 06:22 AM
'77 Bronco 4bt Conversion - by High Pressure - 04-11-2008, 07:17 PM
'77 Bronco 4bt Conversion - by 744x4 - 04-11-2008, 10:03 PM
'77 Bronco 4bt Conversion - by blazinchuck - 04-14-2008, 12:54 PM
'77 Bronco 4bt Conversion - by johnpaulgolf - 04-14-2008, 01:09 PM
'77 Bronco 4bt Conversion - by High Pressure - 04-29-2008, 08:40 PM
'77 Bronco 4bt Conversion - by blazinchuck - 04-29-2008, 08:45 PM
'77 Bronco 4bt Conversion - by High Pressure - 04-29-2008, 08:53 PM
'77 Bronco 4bt Conversion - by cuz1 - 04-29-2008, 09:09 PM
'77 Bronco 4bt Conversion - by trkbilder - 04-29-2008, 09:28 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-02-2008, 08:08 PM
'77 Bronco 4bt Conversion - by blazinchuck - 05-02-2008, 08:10 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-02-2008, 08:17 PM
'77 Bronco 4bt Conversion - by snipes243 - 05-02-2008, 09:42 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-03-2008, 08:10 AM
'77 Bronco 4bt Conversion - by trkbilder - 05-03-2008, 08:27 AM
'77 Bronco 4bt Conversion - by K45 - 05-06-2008, 05:12 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-06-2008, 09:21 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-13-2008, 09:06 PM
'77 Bronco 4bt Conversion - by johnpaulgolf - 05-13-2008, 09:13 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-13-2008, 09:23 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-13-2008, 09:34 PM
'77 Bronco 4bt Conversion - by blazinchuck - 05-13-2008, 11:56 PM
'77 Bronco 4bt Conversion - by blazinchuck - 05-13-2008, 11:59 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-14-2008, 05:37 AM
'77 Bronco 4bt Conversion - by johnpaulgolf - 05-14-2008, 08:55 AM
'77 Bronco 4bt Conversion - by High Pressure - 05-16-2008, 07:45 PM
'77 Bronco 4bt Conversion - by johnpaulgolf - 05-16-2008, 08:23 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-16-2008, 09:00 PM
'77 Bronco 4bt Conversion - by broncomania - 05-20-2008, 10:09 PM
'77 Bronco 4bt Conversion - by High Pressure - 05-24-2008, 06:45 AM
'77 Bronco 4bt Conversion - by High Pressure - 05-27-2008, 09:20 PM
'77 Bronco 4bt Conversion - by broncomania - 05-27-2008, 10:32 PM
'77 Bronco 4bt Conversion - by High Pressure - 06-02-2008, 09:11 PM
'77 Bronco 4bt Conversion - by johnpaulgolf - 06-02-2008, 10:12 PM
'77 Bronco 4bt Conversion - by High Pressure - 06-28-2008, 07:41 PM
'77 Bronco 4bt Conversion - by High Pressure - 07-05-2008, 08:46 PM
'77 Bronco 4bt Conversion - by broncomania - 07-06-2008, 01:53 AM
'77 Bronco 4bt Conversion - by High Pressure - 07-07-2008, 10:26 PM
'77 Bronco 4bt Conversion - by trkbilder - 07-08-2008, 09:50 AM
'77 Bronco 4bt Conversion - by jollygrngiant - 07-09-2008, 09:16 AM
'77 Bronco 4bt Conversion - by johnpaulgolf - 07-09-2008, 11:19 AM
'77 Bronco 4bt Conversion - by High Pressure - 07-13-2008, 09:29 PM
'77 Bronco 4bt Conversion - by High Pressure - 07-05-2009, 08:27 AM
'77 Bronco 4bt Conversion - by High Pressure - 07-05-2009, 08:29 AM
'77 Bronco 4bt Conversion - by Mill Knob - 07-05-2009, 09:08 AM
'77 Bronco 4bt Conversion - by SC74 - 07-05-2009, 12:26 PM
'77 Bronco 4bt Conversion - by High Pressure - 07-07-2009, 05:11 PM
'77 Bronco 4bt Conversion - by trkbilder - 07-07-2009, 05:41 PM
'77 Bronco 4bt Conversion - by ELWOOD - 07-07-2009, 05:42 PM
'77 Bronco 4bt Conversion - by blazinchuck - 07-07-2009, 10:05 PM
'77 Bronco 4bt Conversion - by High Pressure - 07-08-2009, 06:26 AM
'77 Bronco 4bt Conversion - by High Pressure - 08-16-2009, 08:29 AM
'77 Bronco 4bt Conversion - by blazinchuck - 08-16-2009, 10:32 AM
'77 Bronco 4bt Conversion - by bone collector - 08-16-2009, 11:39 AM
'77 Bronco 4bt Conversion - by JayT - 08-17-2009, 02:14 AM
'77 Bronco 4bt Conversion - by johnpaulgolf - 08-17-2009, 09:45 AM
'77 Bronco 4bt Conversion - by High Pressure - 08-17-2009, 06:04 PM
'77 Bronco 4bt Conversion - by High Pressure - 08-22-2009, 05:38 PM
'77 Bronco 4bt Conversion - by Mill Knob - 08-22-2009, 10:55 PM
'77 Bronco 4bt Conversion - by High Pressure - 08-28-2009, 06:57 PM
'77 Bronco 4bt Conversion - by johnpaulgolf - 08-29-2009, 01:57 PM
'77 Bronco 4bt Conversion - by High Pressure - 08-30-2009, 09:06 AM
'77 Bronco 4bt Conversion - by High Pressure - 08-30-2009, 08:55 PM
'77 Bronco 4bt Conversion - by High Pressure - 01-26-2011, 08:24 AM
'77 Bronco 4bt Conversion - by blazinchuck - 03-07-2011, 11:13 AM
'77 Bronco 4bt Conversion - by Rdnckdemo - 07-04-2012, 10:30 AM
'77 Bronco 4bt Conversion - by broncosbybart - 07-05-2012, 03:14 PM
'77 Bronco 4bt Conversion - by blazinchuck - 04-08-2008, 07:18 AM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Bronco Camo Wraps circlefire 7 3,096 03-27-2018, 05:20 PM
Last Post: circlefire
  68 Bronco wepuckett 126 28,341 04-27-2017, 09:57 AM
Last Post: Crawdad
  73 Bronco wepuckett 115 24,587 05-17-2015, 11:11 PM
Last Post: blazinchuck
  That storage locker Bronco 66Roadster 53 11,863 01-17-2015, 11:49 AM
Last Post: jdowns67
  Wheels and Tires. Stock 1996 Bronco 5.8L 4wd or w/ 2" lift and poly body mounts. jrshepherd 2 2,229 05-10-2014, 02:36 PM
Last Post: Wickedlester
  1969 Bronco Build jtoney51 9 3,783 07-09-2013, 10:26 PM
Last Post: jtoney51
  66 Bronco rebuild Casey835 56 12,641 06-04-2013, 07:45 AM
Last Post: jollygrngiant
  my bronco build 66bronco 65 16,273 04-17-2012, 11:54 PM
Last Post: bigjake79
  Just getting started 74 Bronco N747JB 7 2,688 10-29-2011, 07:59 PM
Last Post: N747JB
  BC Bronco shorty header install with 2-in-2 exhaust Crawdad 14 5,989 01-04-2011, 02:03 PM
Last Post: Crawdad

Forum Jump:


Users browsing this thread: 13 Guest(s)