just want some reassurance on combo choices

[T-Test]

Well I can't stand it any longer.

I used to run the early Corvette cams with 292/292 Lobes and they were a bear to tune with carb/intake/valve lash. But when right they would produce all you needed for a street machine.
Different Brands ran good with single plane and others with dual. Even had one with Tunnel ram with 2X4 and one only worked until after 4500 rpm.

Everything is too damn technical now so I just run stock stuff in a 2000 lb car. No frills just thrills and can still pick the front wheels up.

 

[Christopher Williams]

View attachment 10723
Here is the overlay of the dual vs single of Grumpy's Crane choice dynamic is in safe zone no Asymmetry added no info how many degrees, needed to calculate.
dp is dual plane
sp is single plane
Brian is up next Isky time

Looks pretty dang good grumpy. Im curious what a bigger carb would look like

 

[Maniacmechanic1]

The Dynamic compression on both cams are different from the Keith Black Compression ratio calculator.

What is correct accurate now ?

 

[Strictly Attitude]

Not sure this definately takes into account all events will get dual plane your cam next Brian after get son to bed.

 

[Maniacmechanic1]

You have the Isky Cam events wrong John.
Dyno run skewed

 

[Maniacmechanic1]

ISKY 272/282.

IVO-23
IVC-69

EVO-74
EVC-28

All at .050.

Old Isky Catalog shows all events at .050".

Intake lift .505
Eh lift .535
1.5 Rockers

Use 1.5 Rockers.
750 cfm
Open headers
Single plane race.

Make another test run

 

[Maniacmechanic1]

Install straight up.
O zero.

 

[Strictly Attitude]

Isky dual Plane 1.5 211272/282

Isky Dual plane 1.6 211272/282

Over lay

 

[Strictly Attitude]

Brian the soft ware calculates out the duration from events if I type in those event the advertised duration appears

 

[Strictly Attitude]

all tests were calculated strait up installed

 

[Strictly Attitude]

Comp cams next

 

[Maniacmechanic1]

Brian the soft ware calculates out the duration from events if I type in those event the advertised duration appears

We don't have an Even baseline to compare to them.
All for nothing tonight.

DD200 was created from Isky Cams because they only listed cams at .050".
Got the book by Kurtis Levington.
Engineer that created all software and Formulas

 

[Maniacmechanic1]

Events by Isky listed at .050 and your engine simulation does not match.
Not accurate John

 

[Strictly Attitude]

overlay I will take the Isky has more power not just peak power

 

[Strictly Attitude]

overall close one has better low end and mid other shines up high street car lives where?

 

[Maniacmechanic1]

.0

View attachment 10732 View attachment 10733 overlay I will take the Isky has more power not just peak power

Graphs are ok.
Kinda like salesman flash.

I like tables to look at.
Can it do straight table ?

 

[Christopher Williams]

Curious what this non catalog isky shows

 

[Maniacmechanic1]

Calling all accurate tonight there are exactly 180 degree results.

Isky is the Street torque King.
Grumpys 1/4 mile only

 

[Maniacmechanic1]

One thing for sure there is no online Dynamic compression ratio calculator that can be trusted.
All Garbage shit

 

[Strictly Attitude]

Curious what this non catalog isky shows

I will need little guy to settle down to sleep first