Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 355 SBC Tuning help
View Single Post
  #5 (permalink)  
Old 11-18-2011, 10:31 PM
Custom10's Avatar
Custom10 Custom10 is offline
my KARMA ran over my DOGMA
 

Last journal entry: SS
Last photo:
Join Date: May 2009
Location: Saskatchewan, Canada
Age: 50
Posts: 1,101
Wiki Edits: 0

Thanks: 18
Thanked 33 Times in 28 Posts
Best be limiting the vacuum advance + mechanical, keep the total with the 3 amigo's all in to below approx 48 btdc no matter how you mix them up.

Most stock vacuum adv cans will add 16-20 deg advance, remember this shifts up with the initial everytime, it does not care where you limit the mechanical advance. If you have a initial @ 20 then your are going to get up to 56 btdc total when you add in stock 16-20 deg vacuum adv. (20initial+16mech+20vac)

You need to limit mech and vacuum advance

It would not surprise me if this cam liked 36 degrees at idle with 24 initial, so vacuum advance at 12 deg max + 12 deg max mechanical.

PS IMO If the compression ratio of the motor is not at least 10:1+ it wont matter how much you monkey with the timing, its going to load itself silly until its at WOT, thumpa thumpa thumpa
Attached Images
 

Last edited by Custom10; 11-18-2011 at 10:43 PM.
Reply With Quote