Pontiac 428 dyno results. maxperformanceinc.
Pontiac 428 dyno results. Comp Cam, RPM Intake, MSD 436 HP, 476 lbs TQ Dec 3, 2023 · Just Dynoed my 428cj. Off came the spacer and 495. 428 Dyno results Pontiac - StreetPY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street> 428 Dyno results Reply Page 1 of 2 1 2 > Apr 25, 2025 · When discussing the true horsepower of the Pontiac Ram Air IV engine, we're delving into the heart of American muscle car lore. Our crate engines are dyno-proven and many of our customers swear by them for their performance, reliability, and value. Feb 11, 2007 · Page 3- 428 Dyno Results Pontiac - RacePY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Race > 428 Dyno Results 428 Dyno results Pontiac - StreetIt's really the oil temps that they pay close attention to. 33@132 3595lbs Reply With Quote Skip Fix Feb 21, 2015 · A mathematical conversion can be used to approximate numbers at the crankshaft. 9hp. Peak torque was 4000 RPM ,and HP was at 5600. COM Late Model Stuff Ames Customer Satisfaction Forum Members Helping Members Garage Sale Pontiac Business Entities Exchange . We moved to the iron intake and 1" spacer and power moved up to 479hp. maxperformanceinc. The port entrances are matched exactly to a Felpro stock blue gasket, and it is, as we've stated, modified Page 6- 428 Dyno Results Pontiac - RaceForum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home How to Subscribe to the Pontiac Journal Pontiac Journal PY Online Parts Lookup General Forums THE LOBBY Industry Stuff GTOG8TA. Feb 8, 2007 · The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Dyno tuning is an easy and accurate way to ensure that your Pontiac is running its best. I went all the way to an Edelbrock Victor single plane. But some folks need their Pontiac's engine 428 Dyno results Pontiac - StreetPY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street> 428 Dyno results Reply Page 1 of 2 1 2 > Jul 24, 2019 · The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Jun 14, 2023 · 428 SpeedMaster heads Dyno Results Pontiac - StreetThe PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Is that where 428's typically dyno? Pontiac 428 10:1. [Archive] 428 Dyno Results Pontiac - RaceThe HO intake 1" spacer netted 464hp/504tq on the very first pull. php?t=509141) 428 SpeedMaster heads Dyno Results Pontiac - Street1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13. php?f=419) - - 428 Dyno Results (https://forums. [Archive] 428 Dyno Results Pontiac - StreetThe HO intake 1" spacer netted 464hp/504tq on the very first pull. Cliff Ruggles told me that I was giving up some power by using that intake vs a factory cast iron intake . Feb 7, 2025 · At what RPM did the dyno results show 366 HP ? I have found the Pontiac 455 loves intake plenum volume and a lot of carb CFM. The port entrances are matched exactly to a Felpro stock blue gasket, and it is, as we've stated, modified Jun 14, 2023 · PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street> 428 SpeedMaster heads Dyno Results Reply Page 1 of 2 1 2 > Aug 11, 2014 · 428 Dyno results Pontiac - StreetPY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street> 428 Dyno results Reply Page 1 of 2 1 2 > 428 Dyno Results Pontiac - RaceFolks typically cry "foul" when I test my iron intake against any other intake, and it makes more power. Dyno Results Holley 4150 versus 4500 Carburetors 428 Cobra Jet Exhaust Comparison 428 Cobra Jet on Nitrous 489" Supercharged FE, HP, Tq, Airflow, and Boost 490" Supercharged FE, A/F Rich Blue Thunder Dual Plane Intake with Different Plenum Divider and Spacer Combinations Feb 11, 2007 · 428 Dyno Results Pontiac - StreetPY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > 428 Dyno Results Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. - Pontiac - Race () - - 428 Dyno Results () Cliff R 02-08-2007 08:33 AM - Pontiac - Race (https://forums. com/forums/forumdisplay. We played with timing, and as is typical with the KRE heads, lost power moving off of 30 degrees total. 1. They also need the ability to cool the engine as quickly as possible between pulls, saves time. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass. com/forums/showthread. 43@103. The above pic was with dyno 830 carb and 1 7/8 headers. I'm still pleased with the results ! Tim Corcoran 08-10-2014, 09:58 AM All times are GMT -4. Feb 8, 2007 · 428 Dyno Results Pontiac - RaceThe HO intake 1" spacer netted 464hp/504tq on the very first pull. Jul 7, 2014 · This 428CI Pontiac Engine from out 2013 Engine Masters Competition offers 738HP, but is still pump-gas friendly! Feb 10, 2007 · Page 2- 428 Dyno Results Pontiac - RaceForum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home How to Subscribe to the Pontiac Journal Pontiac Journal PY Online Parts Lookup General Forums THE LOBBY Industry Stuff GTOG8TA. Installed an rpm intake, power fell off slightly to 491. An engine dyno uses a water brake to measure engine output. We have indeed modified the intake, however, it still has stock sized runners, no extrude honing or reaching way up inside of it with grinders. Aug 11, 2014 · 428 Dyno results Pontiac - StreetAll times are GMT -4. It has stock replacement pistons and factory carb, manifold, exh manifolds, hydraulic replacement cj cam from cam research. The time now is 11:17 PM. Don't have the flow numbers for the heads . [Archive] 428 Dyno results Pontiac - StreetEdelbrock Performer RPM . , JE Pistons, Eagle H Beam rods, Hyd. Timing and carburetor adjustments are easily performed and the performance effects can quickly be measured. Feb 13, 2014 · 415 lbft @ 3375 321 hp @ 4700 Not sure either way about these numbers for the motor. Once oil Page 3- 428 Dyno Results Pontiac - RaceFolks typically cry "foul" when I test my iron intake against any other intake, and it makes more power. The port entrances are matched exactly to a Felpro stock blue gasket, and it is, as we've stated, modified The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Netted best of 404@5000 and 488tq at 3000 With factory carb n manifold results below. At Nitemare Performance, we build Pontiac motors with a wide range of performance levels, from 400 horsepower 'grocery getters' to streetable engines in the 500-horsepower range to race engines putting out 750 horsepower or more. 4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10. Most engine dyno's I'm familiar with use their own water tank, no thermostats, and keep a continuous flow through the engine, which also has alot to do with easy hookup and less time spent doing so. COM Late Model Stuff Ames Customer Satisfaction Forum Members Helping Members Garage Sale Pontiac Business Entities Exchange 428 Dyno Results Pontiac - RaceFolks typically cry "foul" when I test my iron intake against any other intake, and it makes more power. The time now is 10:41 PM.