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Help! Lope Separation

Marv02

Well-known member
Joined
May 4, 2010
Messages
472
Location
California City Ca
Corvette
1986 C-4 Corvette
I know I should be looking for a lobe separation of 112 to 114.
But can I get a 110 Separation to work with a good tune. (Lunati 60122)
SLP runners and Eldenbrok Hi flow base.
It will also be in a 383.
The RPM range is 2400 to 6200 What I was told the 383 will put the RPM range down lower so this might just miter work out for the 383 DD street motor.
What your 2 cents on this.
 
Are you still going to run the 1.6 rockers on intake?

if so, you might be pushing the limits for the low rpm emissions...
it might run clean mid-range but try to lope & run rich at low rpm or just above idle. From what I read, Ca is getting to be the toughest state in the country for smog, with good reason. I hate seeing the air that I breath:ugh

Regardless, I still wonder why your old motor would'nt jerk your head off...with those new heads, cam and other mods, it should have pulled like a tractor. Could these heads not be right for low rpm?

Another thing to consider is the dynamic compression ratio...what the cam timing actually allows...it may be 11:1 because of the stroke/bore but if the cam does not seal off the cyl with lobe over-lap then that number gets chopped down real fast.
Have you talked to the folks at TrickFlow about this cam/intake combo?
 
Yes same intake and Arms.

Others are telling me Hot cam but the numbers on paper dont look all thats great the Cam I looking at is a SCD Hot cam price is good .


Are you still going to run the 1.6 rockers on intake?

if so, you might be pushing the limits for the low rpm emissions...
it might run clean mid-range but try to lope & run rich at low rpm or just above idle. From what I read, Ca is getting to be the toughest state in the country for smog, with good reason. I hate seeing the air that I breath:ugh

Regardless, I still wonder why your old motor would'nt jerk your head off...with those new heads, cam and other mods, it should have pulled like a tractor. Could these heads not be right for low rpm?

Another thing to consider is the dynamic compression ratio...what the cam timing actually allows...it may be 11:1 because of the stroke/bore but if the cam does not seal off the cyl with lobe over-lap then that number gets chopped down real fast.
Have you talked to the folks at TrickFlow about this cam/intake combo?
 
Thanks everyone.

After looking at all the pros and cons I going to keep my Lunati 60101 cam I can't see forking out a extra $600.00+ to swap to a roller after all.
The OP range of my cam now seems to be the best from what I want it to do and has the number I like for a DD and still has a mean sound to it not a full race car sound.
With the intake and smog what I have seems to be the best combo for now at least untill they do away with smoging my Car out here in Cal.
I can buy a lot of zinc for oil change with the $600.00+ up front I be saving LOL.
 
This is my cam and I going to use And power numbers.
lunati60101.jpg

PowerNumbers.jpg
 
This whats Up.

It cost me $200.00 for everything after returning my Lunati cam set up.
I end up getting a LT4 GM hot Cam, Used Spider set up, New CC timing chain and gears that I can use with my 2 PC timing cover OEM Hyd roller lifters, CC push rods.
I have read this will pass CA Smog with a good tune.
 

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