• Skip to primary navigation
  • Skip to secondary navigation
  • Skip to tertiary navigation
  • Skip to content
  • Skip to primary sidebar
  • Facebook
  • Pinterest
  • YouTube
  • My account
  • Cart
  • Checkout

TMeyer Inc

Main navigation

  • Tech
  • Engine Builds
  • Customers’ Rides
  • Dealers-Track Boss
  • Contact
  • Forum
  • Shop by Brand
  • Engine Family
    • Big Block
      • 429 / 460
    • Cleveland
      • 351C
      • 351M / 400
    • Clevor
      • 289 / 302
      • 351W
    • FE
    • Windsor
      • 289 / 302
      • 351W
  • Engine Parts
    • Accessories
    • Block Parts
    • Cooling System
    • Exhaust
    • Fittings
    • Fuel System
    • Gaskets
    • Heads
    • Ignition System
    • Oil System
    • Rotating Assembly
    • Valvetrain
  • Tools
  • Garage Sale

Forum

Menu
Forum Navigation
ForumMembersActivityLoginRegister
Forum breadcrumbs - You are here:ForumMain Category: General TopicsSuggested cam specs and detonatio …
Please Login or Register to create posts and topics.

Suggested cam specs and detonation question

balingwire@balingwire
2 Posts
#1 · October 27, 2021, 1:45 pm
Quote from balingwire on October 27, 2021, 1:45 pm

Cam

I have to rebuild the existing 351M or stroke to 400 with Track Boss pistons for my '78 F-150 4WD. I spend nearly all of my driving in the 1800-2800 rpm range, and the stock 2150 2-bbl is simple and reliable. If I go with the 400 with Track Boss pistons, stock 2 bbl intake, and stock exhaust manifolds, what cam specs would work best for this?

Detonation

My understanding based on reading about Track Boss pistons is that even though the compression is higher with the these pistons, quench is improved so that detonation is improved. We've been running this 351M for 43 years now, and it's always required 93 octane fuel to keep it from detonating. I'm hoping that the Track Boss pistons and straight up cam timing that I may be able to run 87 or 89. What do you think?

Thank you.


Cam

I have to rebuild the existing 351M or stroke to 400 with Track Boss pistons for my '78 F-150 4WD. I spend nearly all of my driving in the 1800-2800 rpm range, and the stock 2150 2-bbl is simple and reliable. If I go with the 400 with Track Boss pistons, stock 2 bbl intake, and stock exhaust manifolds, what cam specs would work best for this?

Detonation

My understanding based on reading about Track Boss pistons is that even though the compression is higher with the these pistons, quench is improved so that detonation is improved. We've been running this 351M for 43 years now, and it's always required 93 octane fuel to keep it from detonating. I'm hoping that the Track Boss pistons and straight up cam timing that I may be able to run 87 or 89. What do you think?

Thank you.

Click for thumbs down.0Click for thumbs up.0
Timothy Meyer@fordmachinist
63 Posts
#2 · October 27, 2021, 2:05 pm
Quote from Timothy Meyer on October 27, 2021, 2:05 pm

Sorry, we do not make camshaft suggestions. Contact your favorite cam manufacture.

As far as detonation, we have sold almost 9000 pistons to date. Almost everybody will install a 4bdl cab & intake. Seems like that better fuel distribution & mixture is better and helps. The few times I do hear an issue has been a customer from a state that requires certifications to get new license tabs, and have to swap to original induction.  Again, seems to be tied to the original 2bdl carb.

Watching how fast the ignition timing comes in has to be watched also.


Sorry, we do not make camshaft suggestions. Contact your favorite cam manufacture.

As far as detonation, we have sold almost 9000 pistons to date. Almost everybody will install a 4bdl cab & intake. Seems like that better fuel distribution & mixture is better and helps. The few times I do hear an issue has been a customer from a state that requires certifications to get new license tabs, and have to swap to original induction.  Again, seems to be tied to the original 2bdl carb.

Watching how fast the ignition timing comes in has to be watched also.

Click for thumbs down.0Click for thumbs up.0
balingwire@balingwire
2 PostsTopic Author
#3 · October 27, 2021, 2:44 pm
Quote from balingwire on October 27, 2021, 2:44 pm

I have an old Edelbrock Performer for a 400. I'll look into that. Thank you, Tim.

 


I have an old Edelbrock Performer for a 400. I'll look into that. Thank you, Tim.

 

Click for thumbs down.0Click for thumbs up.0
Timothy Meyer@fordmachinist
63 Posts
#4 · October 27, 2021, 3:48 pm
Quote from Timothy Meyer on October 27, 2021, 3:48 pm

That intake is good for TQ


That intake is good for TQ

Click for thumbs down.0Click for thumbs up.0
Post Reply: Suggested cam specs and detonation question
Cancel

Primary Sidebar

Cart

Copyright © 2023 · Envy Pro on Genesis Framework · WordPress · Log in