Those with desktop dynos
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Pro
Joined: Mar 2004
Posts: 686
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From: Southeast
Those with desktop dynos
I know they're not fully accurate to the "T" but is there any way you could run my numbers through to see what my HP and Torque numbers are? I'd just like to see the ballpark of what my car is in. If you will, what numbers or information do you need?
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
Drifting
Joined: Sep 2004
Posts: 1,959
Likes: 1
From: North Bend Ohio
I'll need:
1) Bore and stroke.
2) Cylinder head flow numbers (.050, .1, .2, .3, .4, .5) up to the maximum lift of the camshaft.
3) Compression ratio or combustion chamber volume and piston head type.
4) Carburetor size and intake manifold type (dual plane or single plane).
5) Exhaust type (stock manifolds, headers, etc...)
6) Camshaft specs. (lift, seat to seat duration, intake lobe centerline and lobe center angle) and I need to know if the cam is installed advanced or not.
7) The software can also model forced induction (turbo, supercharger) and it can even spray it (+ 400 HP max).
I can then run the engine in my "Air Corvette" at just about any drag strip in the country. For this I'll need:
1) Vehicle weight.
2) Transmission type. I'll need the ratios.
3) Rear end ratio.
4) Tire type (street tires or slicks), tire size (width and static diameter).
5) Track data (temperature, humidity and elevation).
BigBlockk
Later.....
1) Bore and stroke.
2) Cylinder head flow numbers (.050, .1, .2, .3, .4, .5) up to the maximum lift of the camshaft.
3) Compression ratio or combustion chamber volume and piston head type.
4) Carburetor size and intake manifold type (dual plane or single plane).
5) Exhaust type (stock manifolds, headers, etc...)
6) Camshaft specs. (lift, seat to seat duration, intake lobe centerline and lobe center angle) and I need to know if the cam is installed advanced or not.
7) The software can also model forced induction (turbo, supercharger) and it can even spray it (+ 400 HP max).
I can then run the engine in my "Air Corvette" at just about any drag strip in the country. For this I'll need:
1) Vehicle weight.
2) Transmission type. I'll need the ratios.
3) Rear end ratio.
4) Tire type (street tires or slicks), tire size (width and static diameter).
5) Track data (temperature, humidity and elevation).
BigBlockk
Later.....
Thread Starter
Pro
Joined: Mar 2004
Posts: 686
Likes: 0
From: Southeast
What would be my bore and stroke if the motor is a stock 350 bored .020 over? Would it be just adding .020 to the 3.48" bore of the block? That would be 3.50"? Is this correct or am I wrong? I'm slightly new to the technical motor stuff, but I can get the info to you.
Instructor
Joined: Jan 2006
Posts: 102
Likes: 4
From: Cambridge Ohio
Originally Posted by Fubba
What would be my bore and stroke if the motor is a stock 350 bored .020 over? Would it be just adding .020 to the 3.48" bore of the block? That would be 3.50"? Is this correct or am I wrong? I'm slightly new to the technical motor stuff, but I can get the info to you.
I believe the 3.48" you mention is stroke, not bore. Bore should be 4" stock, plus your .020.
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Me Too
If you don't mind throwing in some numbers I like to have an idea as to what to expect. I was hoping for 425 ft/lbs and 360 to 380hp.
TIA
I'll need:
1) 4.060 x 3.75 -Bore and stroke.
2) 70, 139, 190, 227, 239 (basically stock Vortec) -(.1, .2, .3, .4, .5) up to the maximum lift of the camshaft.
3) 11-1 flat Compression ratio or combustion chamber volume and piston head type.
4) 670 holley and alum dual plane -Carburetor size and intake manifold type (dual plane or single plane).
5) 1 5/8" headers with chambered exhaust -Exhaust type (stock manifolds, headers, etc...)
6) 284* duration, 218* @.050, .458"lift, 106 center line, 110 seperation angle -Camshaft specs. (lift, seat to seat duration, intake lobe centerline and lobe center angle) and I need to know if the cam is installed advanced or not.
TIA
I'll need:
1) 4.060 x 3.75 -Bore and stroke.
2) 70, 139, 190, 227, 239 (basically stock Vortec) -(.1, .2, .3, .4, .5) up to the maximum lift of the camshaft.
3) 11-1 flat Compression ratio or combustion chamber volume and piston head type.
4) 670 holley and alum dual plane -Carburetor size and intake manifold type (dual plane or single plane).
5) 1 5/8" headers with chambered exhaust -Exhaust type (stock manifolds, headers, etc...)
6) 284* duration, 218* @.050, .458"lift, 106 center line, 110 seperation angle -Camshaft specs. (lift, seat to seat duration, intake lobe centerline and lobe center angle) and I need to know if the cam is installed advanced or not.
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Thread Starter
Pro
Joined: Mar 2004
Posts: 686
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From: Southeast
Here's mine:
1)Bore and Stroke: 4.020" X 3.48"
2)Head Flow #'s: 64, 138, 198, 237, 257
3)Combustion Chamber Volume and Piston type: 64cc with Flat-tops
4)Carb and Intake: 600 CFM Edelbrock and Aluminum Dual Plane
5)Exhaust: 1.825" headers through 2.5" exhaust and mufflers
6)Cam: Gross lift: .462/.482, Duration @.050 219/229, 110 Lobe Separation, I'm not sure on the lobe centerline. The specs say nothing about that. Here's a link to the specs Specs
1)Bore and Stroke: 4.020" X 3.48"
2)Head Flow #'s: 64, 138, 198, 237, 257
3)Combustion Chamber Volume and Piston type: 64cc with Flat-tops
4)Carb and Intake: 600 CFM Edelbrock and Aluminum Dual Plane
5)Exhaust: 1.825" headers through 2.5" exhaust and mufflers
6)Cam: Gross lift: .462/.482, Duration @.050 219/229, 110 Lobe Separation, I'm not sure on the lobe centerline. The specs say nothing about that. Here's a link to the specs Specs
Racer
Joined: Sep 2004
Posts: 497
Likes: 0
Here's mine
4.06 Bore 3.75 stroke
10.5 flat tops
Comp Cam Duration 282IN 288EX Valve lift.510 int .520 exh Lobe sep angle 110
Eldebroack Aluminum 2.02 intake 1.6 exhaust heads.. 165cc 60cc chamber size
Eldebrock Aluminum Air Gap Dual plane
Holley 780 Vac secondary
Hedman 1 5/8 long tube headers
4.06 Bore 3.75 stroke
10.5 flat tops
Comp Cam Duration 282IN 288EX Valve lift.510 int .520 exh Lobe sep angle 110
Eldebroack Aluminum 2.02 intake 1.6 exhaust heads.. 165cc 60cc chamber size
Eldebrock Aluminum Air Gap Dual plane
Holley 780 Vac secondary
Hedman 1 5/8 long tube headers
CF Senile Member
Joined: Aug 2005
Posts: 5,738
Likes: 2
From: Central Plains
St. Jude Donor '08
Originally Posted by mandm1200
If you don't mind throwing in some numbers I like to have an idea as to what to expect. I was hoping for 425 ft/lbs and 360 to 380hp.
TIA
I'll need:
1) 4.060 x 3.75 -Bore and stroke.
2) 70, 139, 190, 227, 239 (basically stock Vortec) -(.1, .2, .3, .4, .5) up to the maximum lift of the camshaft.
3) 11-1 flat Compression ratio or combustion chamber volume and piston head type.
4) 670 holley and alum dual plane -Carburetor size and intake manifold type (dual plane or single plane).
5) 1 5/8" headers with chambered exhaust -Exhaust type (stock manifolds, headers, etc...)
6) 284* duration, 218* @.050, .458"lift, 106 center line, 110 seperation angle -Camshaft specs. (lift, seat to seat duration, intake lobe centerline and lobe center angle) and I need to know if the cam is installed advanced or not.
TIA
I'll need:
1) 4.060 x 3.75 -Bore and stroke.
2) 70, 139, 190, 227, 239 (basically stock Vortec) -(.1, .2, .3, .4, .5) up to the maximum lift of the camshaft.
3) 11-1 flat Compression ratio or combustion chamber volume and piston head type.
4) 670 holley and alum dual plane -Carburetor size and intake manifold type (dual plane or single plane).
5) 1 5/8" headers with chambered exhaust -Exhaust type (stock manifolds, headers, etc...)
6) 284* duration, 218* @.050, .458"lift, 106 center line, 110 seperation angle -Camshaft specs. (lift, seat to seat duration, intake lobe centerline and lobe center angle) and I need to know if the cam is installed advanced or not.
Peak Torque: 442 @ 4000 RPM
Peak HP: 396 @ 5500 RPM
Over 400 ft/lb torque from 2250 to 5250 RPM
Same engine with a 750 CFM Carb jumped HP to 406 @5000 RPM and max torque of 473 @ 4000 RPM
Add the same Comp Cam that is in the 350 (Fubba's engine) on the other post and HP jumps to 433 @ 5000 RPM and 477 Torque @ 4000 RPM (this would be some pretty cheap HP ~ $110)
Last edited by 63C2splitter; Feb 16, 2006 at 04:58 PM.
CF Senile Member
Joined: Aug 2005
Posts: 5,738
Likes: 2
From: Central Plains
St. Jude Donor '08
Originally Posted by Fubba
Here's mine:
1)Bore and Stroke: 4.020" X 3.48"
2)Head Flow #'s: 64, 138, 198, 237, 257
3)Combustion Chamber Volume and Piston type: 64cc with Flat-tops
4)Carb and Intake: 600 CFM Edelbrock and Aluminum Dual Plane
5)Exhaust: 1.825" headers through 2.5" exhaust and mufflers
6)Cam: Gross lift: .462/.482, Duration @.050 219/229, 110 Lobe Separation, I'm not sure on the lobe centerline. The specs say nothing about that. Here's a link to the specs Specs
1)Bore and Stroke: 4.020" X 3.48"
2)Head Flow #'s: 64, 138, 198, 237, 257
3)Combustion Chamber Volume and Piston type: 64cc with Flat-tops
4)Carb and Intake: 600 CFM Edelbrock and Aluminum Dual Plane
5)Exhaust: 1.825" headers through 2.5" exhaust and mufflers
6)Cam: Gross lift: .462/.482, Duration @.050 219/229, 110 Lobe Separation, I'm not sure on the lobe centerline. The specs say nothing about that. Here's a link to the specs Specs
10:1 compression
High flow intake (Performer RPM, Weiand Stealth, etc..)
Total duration = 275/277 with 106 centerline
exhaust flow (heads) 59,112, 139, 166, 178
Here are the results:
Torque: 426lb @ 4000 RPM
Torque curve: >400 ft/lb from 3000 to 5000 RPM
HP: 399 @5500 RPM
Power from this 354 cu. in. engine is nearly identical to the 383 posted earlier due to more eficient cam (dual profile) and increased head flow.
Nice engine.
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Originally Posted by 63C2splitter
Assuming a "high flow" (ie. performer RPM or Weiand Stealth), and hydraulic cam, came up with the following results:
Peak Torque: 442 @ 4000 RPM
Peak HP: 396 @ 5500 RPM
Over 400 ft/lb torque from 2250 to 5250 RPM
Peak Torque: 442 @ 4000 RPM
Peak HP: 396 @ 5500 RPM
Over 400 ft/lb torque from 2250 to 5250 RPM
Thanks Very Much for doing it. I haven't done much since the cold weather arrived, but plan on getting the engine off the stand and into the car when spring arrives. I am planning on taking it to a chassis dyno over the summer. Knowing what to expect should help in tuning it. I have no idea of what to compare the intake to, its a GMPP 12496820. Its a low rise style, didn't want to take a chance on hood issues. http://www.paceparts.com/index.asp?P...D&ProdID=22785
CF Senile Member
Joined: Aug 2005
Posts: 5,738
Likes: 2
From: Central Plains
St. Jude Donor '08
Originally Posted by mandm1200
Thanks Very Much for doing it. I haven't done much since the cold weather arrived, but plan on getting the engine off the stand and into the car when spring arrives. I am planning on taking it to a chassis dyno over the summer. Knowing what to expect should help in tuning it. I have no idea of what to compare the intake to, its a GMPP 12496820. Its a low rise style, didn't want to take a chance on hood issues. http://www.paceparts.com/index.asp?P...D&ProdID=22785
As for "what to expect": The pucker factor will be pretty high - you will have a rocket!
Last edited by 63C2splitter; Feb 16, 2006 at 05:02 PM.
Thread Starter
Pro
Joined: Mar 2004
Posts: 686
Likes: 0
From: Southeast
Originally Posted by 63C2splitter
Ran this with the following assumptions:
10:1 compression
High flow intake (Performer RPM, Weiand Stealth, etc..)
Total duration = 275/277 with 106 centerline
exhaust flow (heads) 59,112, 139, 166, 178
Here are the results:
Torque: 426lb @ 4000 RPM
Torque curve: >400 ft/lb from 3000 to 5000 RPM
HP: 399 @5500 RPM
Power from this 354 cu. in. engine is nearly identical to the 383 posted earlier due to more eficient cam (dual profile) and increased head flow.
Nice engine.
10:1 compression
High flow intake (Performer RPM, Weiand Stealth, etc..)
Total duration = 275/277 with 106 centerline
exhaust flow (heads) 59,112, 139, 166, 178
Here are the results:
Torque: 426lb @ 4000 RPM
Torque curve: >400 ft/lb from 3000 to 5000 RPM
HP: 399 @5500 RPM
Power from this 354 cu. in. engine is nearly identical to the 383 posted earlier due to more eficient cam (dual profile) and increased head flow.
Nice engine.
I didn't know you needed exhaust...thought it was intake flow numbers on heads. The real exhaust flow numbers are 56, 105, 146, 171, 186.
10:1 compression is correct. It should be right there at it anyway.
Do you think it will change with a 650/670 or 750 CFM carb?
CF Senile Member
Joined: Aug 2005
Posts: 5,738
Likes: 2
From: Central Plains
St. Jude Donor '08
Originally Posted by Fubba
Thanks so much for doing that! I was hoping for 375 hp and around 400 ft/lb. 399 and 426! That's excellent!
I didn't know you needed exhaust...thought it was intake flow numbers on heads. The real exhaust flow numbers are 56, 105, 146, 171, 186.
10:1 compression is correct. It should be right there at it anyway.
Do you think it will change with a 650/670 or 750 CFM carb?
I didn't know you needed exhaust...thought it was intake flow numbers on heads. The real exhaust flow numbers are 56, 105, 146, 171, 186.
10:1 compression is correct. It should be right there at it anyway.
Do you think it will change with a 650/670 or 750 CFM carb?
Racer
Joined: Sep 2004
Posts: 497
Likes: 0
How do I get my cylinder head flow numbers? I know it's the E-Tec 200 series Alumin Head for Eldebrock.. I checked their site, and I can't find anything else except 170cc or 200cc
E-TEC 200
64cc 200cc 2.02"/1.60" #60969* #60989*
If not it's okay...
E-TEC 200
64cc 200cc 2.02"/1.60" #60969* #60989*
If not it's okay...
CF Senile Member
Joined: Aug 2005
Posts: 5,738
Likes: 2
From: Central Plains
St. Jude Donor '08
Originally Posted by Augustus
How do I get my cylinder head flow numbers? I know it's the E-Tec 200 series Alumin Head for Eldebrock.. I checked their site, and I can't find anything else except 170cc or 200cc
E-TEC 200
64cc 200cc 2.02"/1.60" #60969* #60989*
If not it's okay...
E-TEC 200
64cc 200cc 2.02"/1.60" #60969* #60989*
If not it's okay...
Racer
Joined: Sep 2004
Posts: 497
Likes: 0
63C2splitter Thanks.... Let me know if I'm missing something else
Camshaft =
IN282 EX288 @.050" IN230 EX236 Lift with 1.5rocker IN.510 EX.520 110 lobe sep Angle
Carburater is a Holley 780 vaccuum sec. off a 70 Z28 #3310-1 Beautiful carb) My best too. I'll never get rid of it.
I'm running 3.08 gears and a Turbo 400 Auto
Anything else please let me know... I know your doing me a favour.
Camshaft =
IN282 EX288 @.050" IN230 EX236 Lift with 1.5rocker IN.510 EX.520 110 lobe sep Angle
Carburater is a Holley 780 vaccuum sec. off a 70 Z28 #3310-1 Beautiful carb) My best too. I'll never get rid of it.
I'm running 3.08 gears and a Turbo 400 Auto
Anything else please let me know... I know your doing me a favour.
Thread Starter
Pro
Joined: Mar 2004
Posts: 686
Likes: 0
From: Southeast
Originally Posted by 63C2splitter
A larger cargerator will not add much to your engine power at the RPMs that engine turns - it wouldn't be worth the price. As for the exhaust numbers, the numbers assumed are close enough that it won't make much difference - you will have a little more power with the flow you stated (not much). You have a solid performing motor. BTW, what head do you have? (Dart Iron Eagles are the ones used for the simulation).