Author Topic: Thinking about getting bigger cam??  (Read 118529 times)

0 Members and 13 Guests are viewing this topic.

Gnarly4X

  • Online Gold Turtle Award
  • *
  • Turtle Points: 5134
  • Male Posts: 4,272
  • Member since Jun '16
  • 4-wheeling vicariously.
    • View Profile
    • Buy me some coffee
Re: Thinking about getting bigger cam??
« Reply #90 on: Aug 07, 2016, 08:59:30 PM »
Well, I did more "indepth research" and some rough calculations based upon Snowtoy, Gillesdetrail, the others who posted their experience with going to lower gears in the 3rd member - higher gear ratio (4.10 to 4.56 ring & pinion). 

It looks like I was wrong in my thinking.  :smack:

YES, it looks like if I swap 4.10s to 4.56s, it will put the RPM at 50, 60, 70, 80 MPH in 4th and 5th gears at a higher torque number  (based on my desktop dyno software) within my usable the RPM range.

I will do a spread sheet in the next couple days.

Crap!!!  :thud:....So I'll have to grow my Toy Kitty piggy bank a lot fatter!!  :yikes:

I will want to dyno test my new rebuilt, then swap R&Ps to 4.56, then test it again.

I still want to dyno test another camshaft profile, maybe 2.

Gnarls. :spin:
1986 XtraCab SR5 22RE 5speed W56B, ~16,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

God Bless Our Troops... Especially Our Snipers. The 2nd defends the 1st
MEMBER: WWP, T2T, VFW, NRA, GOA, SAF, Mammoth Nation, C2 Tactical, Hillsdale College, Humane Society of the U.S. - "We cannot solve our problems with the same thinking we used to create them." ~ Albert Einstein

 
 
 
 
 

Related Topics

0 Replies
913 Views
Last post Nov 27, 2007, 05:53:37 AM
by taco9824
11 Replies
3261 Views
Last post Feb 19, 2008, 08:38:01 AM
by superyota
1 Replies
1258 Views
Last post Jan 30, 2009, 11:24:41 AM
by IrieKidinCal
7 Replies
2200 Views
Last post Aug 06, 2011, 06:09:00 PM
by yoshaleng
10 Replies
3425 Views
Last post Oct 18, 2012, 08:50:04 PM
by lone walker