Search found 3379 matches
- Wed Apr 24, 2024 10:46 am
- Forum: Engine Tech
- Topic: Port Energy Anomoly?
- Replies: 44
- Views: 1990
Re: Port Energy Anomoly?
DD49CF24-2C89-4064-9210-6E069EA0604A.png Something seems wonky here. I’ve never see an engine fall off dramatically and level off like that without something being wrong. If the air is reaching a critical velocity from being undersized, it will start falling off and remain falling off. Are they sur...
- Tue Apr 23, 2024 3:47 pm
- Forum: Engine Tech
- Topic: Push rod pinch on restricted intake manifold.
- Replies: 6
- Views: 410
Re: Push rod pinch on restricted intake manifold.
260 CFM air flow
1.8 sqin CSA - Average Air Speed 346.7 fps
1.9 sqin CSA - Average Air Speed 328.4 fps
2.0 sqin CSA - Average Air Speed 312.0 fps
2.08 sqin CSA - Average Air Speed 300.0 fps
Stan
1.8 sqin CSA - Average Air Speed 346.7 fps
1.9 sqin CSA - Average Air Speed 328.4 fps
2.0 sqin CSA - Average Air Speed 312.0 fps
2.08 sqin CSA - Average Air Speed 300.0 fps
Stan
- Mon Apr 22, 2024 11:22 am
- Forum: Engine Tech
- Topic: Ported Chevy 083 heads, the tpi project
- Replies: 398
- Views: 40766
Re: Ported Chevy 083 heads, the tpi project
PipeMAX calculates VE differently than a dyno. After building several TPI engines on PipeMax and DynoSim6, I am confident this is about at accurate as can be. Richard Holdener did 372hp and 465ft lbs with the same intake parts and AFR heads. 385hp is the goal. Rob, Did the program calculate this BS...
- Sun Apr 21, 2024 11:55 pm
- Forum: David Vizard forum
- Topic: TorqueMaster cam program update
- Replies: 62
- Views: 18890
Re: TorqueMaster cam program update
Kevin,
The program is not an engine simulation program. The 6000 RPM you enter is an input. The wave turned length / RPM is just a separate calculation.
Stan
The program is not an engine simulation program. The 6000 RPM you enter is an input. The wave turned length / RPM is just a separate calculation.
Stan
- Sun Apr 21, 2024 11:46 pm
- Forum: Engine Tech
- Topic: Ported Chevy 083 heads, the tpi project
- Replies: 398
- Views: 40766
Re: Ported Chevy 083 heads, the tpi project
PipeMAX calculates VE differently than a dyno. After building several TPI engines on PipeMax and DynoSim6, I am confident this is about at accurate as can be. Richard Holdener did 372hp and 465ft lbs with the same intake parts and AFR heads. 385hp is the goal. Rob, Did the program calculate this BS...
- Sun Apr 21, 2024 11:43 pm
- Forum: Engine Tech
- Topic: Ported Chevy 083 heads, the tpi project
- Replies: 398
- Views: 40766
- Wed Apr 17, 2024 11:18 am
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
Re: 496 Drag Test REDO.............
Barry,
How light can you be, if you don't have to be class legal?
Stan
- Tue Apr 16, 2024 9:42 am
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
Re: 496 Drag Test REDO.............
Larry, What are you using for Cd and FA? I long time ago I found somewhere on the internet. 70 Chevelle .42 Cd 25.52 FA Stan i did a very quick Simulation for Mark's 650 HP ... i didn't fine-tune it or nit-pick it however, i came out pretty close to reality :) VortecPro_DragCoefficient_FrontalArea....
- Mon Apr 15, 2024 1:58 pm
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
Re: 496 Drag Test REDO.............
Larry,maxracesoftware wrote: ↑Mon Apr 15, 2024 12:57 pm .... this would be an "Ideal Run" that would show 650 Peak HP with a very flat TQ and HP Curve
something to shoot for !
VortecPro_Ideal_Run_650HP.png
What are you using for Cd and FA? I long time ago I found somewhere on the internet. 70 Chevelle .42 Cd 25.52 FA
Stan
- Mon Apr 15, 2024 12:31 pm
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
Re: 496 Drag Test REDO.............
I used 3500 and guessed at a few things. 60 Foot ET = 1.3451 330 Foot ET = 4.0295 1/8 Mile ET = 6.3696 1/8 Mile MPH = 104.4593 1000 Foot ET = 8.4108 1/4 Mile ET = 10.1480 1/4 Mile MPH = 129.8599 In better air close to DA = 0 60 Foot ET = 1.3132 330 Foot ET = 3.9323 1/8 Mile ET = 6.2165 1/8 Mile MPH...
- Mon Apr 15, 2024 11:41 am
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
Re: 496 Drag Test REDO.............
I used 3500 and guessed at a few things. 60 Foot ET = 1.3451 330 Foot ET = 4.0295 1/8 Mile ET = 6.3696 1/8 Mile MPH = 104.4593 1000 Foot ET = 8.4108 1/4 Mile ET = 10.1480 1/4 Mile MPH = 129.8599 In better air close to DA = 0 60 Foot ET = 1.3132 330 Foot ET = 3.9323 1/8 Mile ET = 6.2165 1/8 Mile MPH ...
- Mon Apr 15, 2024 10:39 am
- Forum: Engine Tech
- Topic: dynamic compression street cam ( cont...)
- Replies: 11
- Views: 563
- Mon Apr 15, 2024 10:32 am
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
Re: 496 Drag Test REDO.............
The car: My 1968 Chevelle, T350 4.56 gear, (not optimum) 30x9 radial slick. Exact weight will be posted when I run across the scales Sunday. The results from the first lackluster test were: 10.50 @ 124.5 140 60 foot, 6.61 660 @ 102 MPH #-o Same engine this time drag tested in different conditions. ...
- Sun Apr 14, 2024 12:20 pm
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2127
- Thu Apr 11, 2024 3:41 pm
- Forum: Engine Tech
- Topic: 11.5 compression, Iron Head, 91 octane
- Replies: 40
- Views: 1878