Search found 2908 matches
- Wed Apr 24, 2024 10:56 pm
- Forum: Engine Tech
- Topic: SuperStock 461X 041X Heads and Dyno tests
- Replies: 85
- Views: 8548
Re: SuperStock 461X 041X Heads and Dyno tests
Edelbrock7501AirGapDualPlaneMoroso4HoleSpacer_1.jpg Edelbrock7501AirGapDualPlaneMoroso4HoleSpacerHolley750_1.jpg Edelbrock7501AirGapDualPlaneMoroso4HoleSpacerHolley750_2.jpg StockShapeHolley300-25Manifold_1.jpg StockShapeHolley300-25ManifoldMoroso4HoleSpacerHolley750Carb.jpg StockShapeHolley300-25M...
- Wed Apr 24, 2024 10:55 pm
- Forum: Engine Tech
- Topic: SuperStock 461X 041X Heads and Dyno tests
- Replies: 85
- Views: 8548
Re: SuperStock 461X 041X Heads and Dyno tests
FelPro1205_Port_Match_1.jpg ShopRags_stuffed_into_Intake_Ports_2.jpg Z28_DualPlane_Manifold_1.jpg Z28_DualPlane_Manifold_2.jpg Z28_DualPlane_Manifold_3.jpg Z28_DualPlane_Manifold_4.jpg Z28_DualPlane_Manifold_5.jpg Z28_DualPlane_Manifold_SideTaped.jpg Z28_DualPlane_Manifold_SideTaped_Holley750Carb.j...
- Tue Apr 23, 2024 2:03 am
- Forum: Engine Tech
- Topic: SuperStock 461X 041X Heads and Dyno tests
- Replies: 85
- Views: 8548
Re: SuperStock 461X 041X Heads and Dyno tests
those #461X Heads are much better looking now , than the Pics above are in previous Posts ! i went to 320-Grit finish in Bowls and Chambers instead of wornout 120-Grit Roll as in Pics reason : for these old cast-iron Heads to help stop a crack from forming plus some little rust spots kept popping up...
- Mon Apr 22, 2024 2:22 pm
- Forum: Engine Tech
- Topic: Ported Chevy 083 heads, the tpi project
- Replies: 398
- Views: 40629
Re: Ported Chevy 083 heads, the tpi project
.... Sorry , i just saw this Thread today ! :oops: just had a new Dynomation update : Version 6.03.37_CD_DL on 3/29/2024 this new Dynomation version predicts these Results using PipeMax v4.90 Harmonic Lengths for Peak TQ occuring at 3900 RPM and for Peak HP occuring at 5900 RPM Power Band width = 20...
- Mon Apr 22, 2024 2:08 am
- Forum: Engine Tech
- Topic: SuperStock 461X 041X Heads and Dyno tests
- Replies: 85
- Views: 8548
- Sat Apr 20, 2024 12:08 pm
- Forum: Engine Tech
- Topic: Original OEM ZL1 427cid numbers matching
- Replies: 7
- Views: 504
Re: Original OEM ZL1 427cid numbers matching
Larry, I'm a bit confused. WHAT IS THE NUMBERS MATCHING TOO? Does this have a 1969 Camaro VIN stamped on the block? WAY more than 71 as a least 75/77 made there way into cars, 69 Camaros and at least 7 known Vette's, 3/4 are said to be OEM ZL-1s. GM did a bunch in Vette test cars too. There's a pic...
- Sat Apr 20, 2024 5:09 am
- Forum: Engine Tech
- Topic: Original OEM ZL1 427cid numbers matching
- Replies: 7
- Views: 504
Re: Original OEM ZL1 427cid numbers matching
Wow, how long have you had that jewel laying around or is this something GMPP is selling now? Chris at C & S Performance bought it and sold it to his Customer its original COPO 1969 Camaro version , should have more Pics + Dyno video/sheets soon i'll ask for more details . Chris is not 100% sur...
- Fri Apr 19, 2024 5:43 pm
- Forum: Engine Tech
- Topic: Original OEM ZL1 427cid numbers matching
- Replies: 7
- Views: 504
Re: Original OEM ZL1 427cid numbers matching
COPO Camaro original ZL1 version 427cid + just Dyno tested made 530+HP ??
with very thick Headgasket to lower CompRatio for Pump Gas ,
with new Cam Motion Low-Lash Solid Roller Cam , 514+ Peak TQ
with very thick Headgasket to lower CompRatio for Pump Gas ,
with new Cam Motion Low-Lash Solid Roller Cam , 514+ Peak TQ
- Fri Apr 19, 2024 5:34 pm
- Forum: Engine Tech
- Topic: Original OEM ZL1 427cid numbers matching
- Replies: 7
- Views: 504
Re: Original OEM ZL1 427cid numbers matching
will Post Dyno Test Sheets + Dyno Videos
- Fri Apr 19, 2024 5:32 pm
- Forum: Engine Tech
- Topic: Original OEM ZL1 427cid numbers matching
- Replies: 7
- Views: 504
Original OEM ZL1 427cid numbers matching
Original OEM ZL1 427cid numbers matching ( Winter's Foundry SnowFlakes )(Camaro version) going into 1967 Chevelle restoration brand new ZL1 Holley Carb in Box never used , never had Gasoline in it substituded ProSystems Holley Carb has original Transitorized Tach Drive Distributor, not used here , ...
- Fri Apr 19, 2024 2:01 pm
- Forum: Engine Tech
- Topic: SuperStock 461X 041X Heads and Dyno tests
- Replies: 85
- Views: 8548
- Wed Apr 17, 2024 12:51 pm
- Forum: Engine Tech
- Topic: PIPEMAX question for maxracesoftware
- Replies: 6
- Views: 1184
Re: PIPEMAX question for maxracesoftware
i just sent you a Private Messageracear2865 wrote: ↑Wed Apr 17, 2024 12:03 pm I am trying to reach Pipemax. I purchase the 3 package and I have on 1 pc. Need to install on another pc. Instruction was on old email that ATT canceled because it was spammed. How do I proceed from here. 76 years old and still lost
- Tue Apr 16, 2024 5:40 pm
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2093
Re: 496 Drag Test REDO.............
SuperFlow_Friction_Factors_accuracy examples :
- Tue Apr 16, 2024 3:00 pm
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2093
Re: 496 Drag Test REDO.............
by Rick! » Tue Apr 16, 2024 7:52 am For the OP, here's a screenshot from an ET Predictor based on Pat Hale's Performance Racing Atmosphere calculations. (a modified version of SAE J1349) I believe Larry's program uses Pat's CF calculations. I also use some formulas off of epi-eng.com for water vapo...
- Tue Apr 16, 2024 4:53 am
- Forum: Engine Tech
- Topic: 496 Drag Test REDO.............
- Replies: 39
- Views: 2093
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....