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Old 03-23-2011, 03:08 PM
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Cam and intake manifold combo question.

Currently I have a Lunati cam part number 40134 below specs right off Lunati's website.

Solid, fair idle. Good performance street and mild bracket race.
Advertised Duration (Int/Exh): 278/288
Duration @ .050 (Int/Exh): 239/239
Gross Valve Lift (Int/Exh): .517/.543
LSA/ICL: 106/102
RPM Range: 3000-6500
Includes: Cam Only
Part Number: 40134



And also a Weiland 7530 team G intake manifold specs below:

Engine Block Style Stock/OEM standard deck
Carburetor Quantity One
Intake Style Single plane
Basic Operating RPM Range 2,800-7,200
Intake Finish Natural
Intake Material Aluminum
EGR No
Quantity Sold individually.
Notes Isolated water crossover passage for superior cooling. Automatic transmission requires spacer plate/plenum divider to develop low-rpm vacuum. Port matching may be required.


Also picked up this carb: Holley Model 4150 Ultra Carburetors 750cfm
http://www.summitracing.com/parts/HLY-0-76750RD/


Now this is a street motor going in my pro street Mercury. Its a built 10:3:1 Compression Chevy 355. It was used in my race Camaro for a while and would drive to and from the track with it. Rev to 7000-7200

Is there anything different you would change for a strictly street driven motor with the occasional 1/4 mile pass maybe 4 times a year? The reason I ask is the CFM calculator recommends a 560 carb for street applications and on the track I was running a 850. I purchased the 750 street carb for better drivability and warm up.

Any advice? was thinking of a different manifold that makes power from idle to 5500, bad idea?

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Old 03-23-2011, 07:54 PM
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Quote:
Originally Posted by Dajerseyrat
Currently I have a Lunati cam part number 40134 below specs right off Lunati's website.

Solid, fair idle. Good performance street and mild bracket race.
Advertised Duration (Int/Exh): 278/288
Duration @ .050 (Int/Exh): 239/239
Gross Valve Lift (Int/Exh): .517/.543
LSA/ICL: 106/102
RPM Range: 3000-6500
Includes: Cam Only
Part Number: 40134



And also a Weiland 7530 team G intake manifold specs below:

Engine Block Style Stock/OEM standard deck
Carburetor Quantity One
Intake Style Single plane
Basic Operating RPM Range 2,800-7,200
Intake Finish Natural
Intake Material Aluminum
EGR No
Quantity Sold individually.
Notes Isolated water crossover passage for superior cooling. Automatic transmission requires spacer plate/plenum divider to develop low-rpm vacuum. Port matching may be required.


Also picked up this carb: Holley Model 4150 Ultra Carburetors 750cfm
http://www.summitracing.com/parts/HLY-0-76750RD/


Now this is a street motor going in my pro street Mercury. Its a built 10:3:1 Compression Chevy 355. It was used in my race Camaro for a while and would drive to and from the track with it. Rev to 7000-7200

Is there anything different you would change for a strictly street driven motor with the occasional 1/4 mile pass maybe 4 times a year? The reason I ask is the CFM calculator recommends a 560 carb for street applications and on the track I was running a 850. I purchased the 750 street carb for better drivability and warm up.

Any advice? was thinking of a different manifold that makes power from idle to 5500, bad idea?
This sounds like one BA motor, the 750 should work fine especially with a divider in the intake. The tranny and gears are what? If a stick I don't see any issues a little leverage can't cure. An automatic will want some stall and a 180 degree intake.

How's the balance on your Sunoco card, got space to fuel this thing?

Ever get the feeling the people that write those engine model programs smoke banana peels at lunch?

Bogie
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Old 03-23-2011, 08:29 PM
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Quote:
Originally Posted by oldbogie
This sounds like one BA motor, the 750 should work fine especially with a divider in the intake. The tranny and gears are what? If a stick I don't see any issues a little leverage can't cure. An automatic will want some stall and a 180 degree intake.

How's the balance on your Sunoco card, got space to fuel this thing?

Ever get the feeling the people that write those engine model programs smoke banana peels at lunch?

Bogie
Trans is a 700R4 with 2800 stall and 411 gears. 33" MT's what do you mean by a 180 degree intake?
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Old 03-24-2011, 06:49 AM
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any other advice? anyone?
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Old 03-24-2011, 10:07 AM
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Quote:
Originally Posted by Dajerseyrat
Trans is a 700R4 with 2800 stall and 411 gears. 33" MT's what do you mean by a 180 degree intake?
Two plane intake with half the engine feeding from the upper and the other half the lower, just like many factory carb or TBI style intakes. These give a bit of boost to lower thru mid RPMs torque output compared to the 360 degree type you're using which tends to favor the top end. But a center divider does a lot to boost the low thru mid response from these monsters.

All-in-all your combo sounds very aggressive but street-able.

Bogie
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Old 03-24-2011, 02:05 PM
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Yes, it sounds VERY healthy on the street Went 11.65 all motor in my 3300lb Camaro.
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