recurving a stock dizzy
#16
Nowhere in that article did it mention a total mechanical advance of over 42 degrees. The only time a figure over that was mentioned was with mechanical advance being too much and the figure of 46 degrees was stated as being way too much.
The 38-42 figure was for basically a stock engine with the numbers going down as compression increased.
If Basby is running 10:1 (which one poster said) 45 degrees total seems highly unlikely. The higher duration cams used a higher static timing, which is why welding up the slots or using smaller plates is the usual modification. So while 15* initial isn't out of the question adding 30 more seems unlikely to me, but I've been wrong before.
The 38-42 figure was for basically a stock engine with the numbers going down as compression increased.
If Basby is running 10:1 (which one poster said) 45 degrees total seems highly unlikely. The higher duration cams used a higher static timing, which is why welding up the slots or using smaller plates is the usual modification. So while 15* initial isn't out of the question adding 30 more seems unlikely to me, but I've been wrong before.
#17
Join Date: Nov 2005
Location: Charles Town, W bygod Va
Posts: 7,437
Likes: 0
Received 3 Likes
on
3 Posts
i AM RIGHT AROUND 10:1, My truck should be pinging its a$$ off with the advance I'm running, but it doesnt. Thats why I think I may have something else going on, just not sure what it could be. I've only got 6-8 k on the motor since the rebuild. For cam timing I bought the earlier (70 or so) timing chain set and just lined up the marks, didnt check it w/ a degree wheel
#18
Typed this out and got sidetracked. So I didn't see the above until I posted.
#19
i AM RIGHT AROUND 10:1, My truck should be pinging its a$$ off with the advance I'm running, but it doesnt. Thats why I think I may have something else going on, just not sure what it could be. I've only got 6-8 k on the motor since the rebuild. For cam timing I bought the earlier (70 or so) timing chain set and just lined up the marks, didnt check it w/ a degree wheel
Thread
Thread Starter
Forum
Replies
Last Post
hivoltj
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
13
05-15-2016 06:01 AM
barca_texas
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
3
09-24-2009 07:34 AM
gingerbreadmaniac
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
2
12-14-2008 05:20 PM