just want some reassurance on combo choices

[Maniacmechanic1]

Gotta get to Bed.

Want to do all Cams by all available.

We have a Baseline again tonight.

Brian Reeland

 

[Christopher Williams]

The pro Flo 3 is based on a dual plane set-up

 

[Christopher Williams]

Would if I had it

 

[Maniacmechanic1]

And my strab...

Yes

 

[Christopher Williams]

Thanks Brian Reeland

 

[Christopher Williams]

Looking at this kit. It very well may be based off a single plane Victor intake... There is hope

 

[Maniacmechanic1]

 

[Maniacmechanic1]

400 sbc .
CROWER 00484 Hydraualic Roller Cam. The Largest or Biggest EFI Profile listed by them for 1st Gen SBC.
10.5 :1 static compression.
1.6 :1 ratio Rockers.
Dual Plane Intake.
Open Small Tube Headers.
Cam installed straight up too.

 

[Maniacmechanic1]

All the same yet.
Crower 00484

 

[Maniacmechanic1]

Single plane intake.
Crower 00484

 

[Maniacmechanic1]

The Isky RR 272/282 and the Crower 00484 have very similar Power.
Isky is the smaller duration spec cam.
Will run nicer on the street driving.

Crower makes a bit more power with single plane intake.

 

[Maniacmechanic1]

Crower 00484.
Dual Plane intake.
Large Tube Headers installed with Mufflers.
Power is down in real world muffled .

 

[Maniacmechanic1]

Crower 00484.
Dual plane intake.
Small Tube Headers with Mufflers.
450 Hp now available.

 

[Maniacmechanic1]

Isky RR272/282 again with small tube headers and mufflers.
Dual plane intake.

 

[Maniacmechanic1]

The trend I see is to pick the largest EFI compatible Profile cam from each manufacturer.

 

[Maniacmechanic1]

With LCA so wide its going to be impossible to get 100 % VE cylinder Fill.
450 HP with small tube headers and mufflers is pretty good.

 

[Grumpy]

Im running the crane 119661 in my corvette
notice its similar valve timing and slightly tighter lsa
Ive tried several similar cams like the crower 00471, many make better peak power,
I was more concerned with instantly available, brisk off idle torque,and ease of driving in traffic.
keep in mind I was not concerned with racing the car and lacking power as I had selected the cam,
and built the engine fully under the concept of using a 200 hp wet nitrous plate.
once you hit the giggle gas the u-joints and half shafts are under considerable stress if your running slicks vs street tires ,
street tires act as a safety fuse as they loose traction on a hard launch, reducing drive train shock loads and stress.
I was never concerned with E.T. or drag racing with this corvette, the object was simply to have that extra power on tap if I wanted it to embarrass some street racer, through first and second gear.

http://garage.grumpysperformance.com/index.php?threads/my-current-corvettes-383-combo.430/

 

[Christopher Williams]

With LCA so wide its going to be impossible to get 100 % VE cylinder Fill.
450 HP with small tube headers and mufflers is pretty good.

Both those cams have good torque curves. How is still good even with the mufflers restrictions

 

[Maniacmechanic1]

Both those cams have good torque curves. How is still good even with the mufflers restrictions

It's a characteristic trait of Wide Lobe Center Cams.
Not so sensitive to Exhaust pulse wave tuning or common misunderstood as back pressure present or not.
Little Overlap in all EFI Friendly cams.
Analysed LS Factory and LSX cams in the past with a C5 Drag Racer I know and a Corvette EFI Tuner Mechanic down In Florida. Digital Corvette Forum.

 

[Maniacmechanic1]

LS engines all use wide lobe centers.
118 -121 stock.
When at 110 LCA It's EFI Tuning Misery for near all.
But the Pro Tuners.
Still run Ragged.