Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

quadrajet-cam

See 1976 Chevrolet pickup with Rochester quadrajet upgrade on SBC 350 V8. We removed the hood, mounted a camera looking down on the air horn, and took it for a spin, running wide open on an uphill grade. See how the secondary air valve responds to rpm drop at each upshift of the THM. Also included is a smoking burnout.


 


More Videos...


re-jet your Quadrajet (part 1)
rejetting a quadrajet





Quadrajet air leak fix and warped air horn repair tutorial.
How to identify a Quadrajet with a warped air horn without diss assembly or running it on a car. These tips would have saved me time and money which is why I made this video. I also discus how to repair a warped air horn and prevent your air horn from warping in the first place. If you have a whistling noise just off idle then you got some work to do. You will never get your engine tuned right, your cold start performing or decent fuel economy unless your four barrel carburetor is just right. Special thanks to Cliff Ruggles for his book Rochester Quadrajet carburetors and to my brother Adrian who spent hours on tuning and fitting. See this video for description of the technique I used to straighten a warped air horn. http://www.youtube.com/watch?v=l_SgQiVf3_0&feature=youtu.be here is a technique for re-bushing the throttle shaft without drilling. http://rmcavoy.freeshell.org/Q_Jet_bushings.html





for Tim - Rochester tips





Decoding a Rochester Quadrajet part 2: Breaking down the numbers
In this clip we'll learn how to decipher the Identification number and julian date code on the Rochester Quadrajet.





The Infamous Quadrajet Moan
Making a full-throttle pull on the chassis Dyno with our 1972 Pontiac Trans Am with 455 H.O. engine.





1978 Chevy 454 first startup in years clicked a lot! then ...
THIS ONE RAN GREAT! SEE OUR VINTAGE AND CURRENT INVENTORY ONLINE. WWW.RONDOTRAILER.COM LOCATED IN SYCAMORE, IL 60178 NEAR DEKALB, IL $OLD, THANK YOU! CHECK OUT OUR UNIQUE VEHICLES FOR SALE. WWW.RONDOTRAILER.COM SYCAMORE, IL 60178 NEXT TO DEKALB, IL





how to minimize engine bog with a Quadrajet carb
this is to minimize engine bog when the pedal is to the metal. do not over tighten, very small spring...you want to try 1/4 turns or 1/2...q-jets are good if tuned properly. also when you are tightening screw it will have tension on it so keep the screwdriver firm. 1986 gmc sierra single straightpipe to cherrybomb. you will need a small flathead screwdriver and a 3/32 allen key. be sure not to tighten to much or else your vacuum secondary flaps wont open.





New quadrajet set up
New air-gap manifold and custom/rebuilt q-jet. Sounds good but I still need to set the timing on the distributor and the carb is tuned already. Hope you like, nothing to fancy just a few revs and walk around...the Exhaust is true dual no x/h pipe and it has cherry bomb glasspacks(3 inch)





750 vs. 800cfm Rochester Quadrajets-how to tell them apart
There exists a ton of misinformation regarding the actual airflow capacity of the Rochester Quadrajet. Not many people know how many variations there are or how to tell them apart. Here is a simple video explaining how to identify each size based on casting design. I will cover the "cfm-limited" carbs in a separate video.





1977 El camino carb and REV!!!!
i rebuilt my quadrajet 4 barrel and it ran so well that i had to rev it for you comment me and tell me if u like it





Everything you wanted to know about automatic chokes but were afraid to ask
I've noticed many people drive vehicles with inoperative chokes. Even though chokes can be intimidating, repairing and adjusting them actually is very simple. So, stop pumping that accelerator and follow along as we look at how chokes work and how to repair them.





How to debog your Quadrajet part 3
In the first two videos we looked at operational theory of the Quadrajet. In this episode we'll explore a couple mistakes the home mechanic often makes in an effort to improve the performance of this unit.





How to adjust carburetor mixture screws
Here's how to find and adjust the mixture screws on your carburetor. Note that metering-block style carbs such as Holley and Demon more often have one or 2 mixture screws in each metering block depending on the number of venturi. Also those may not be located at the bottom of the carb as in factory carburetors.





Rochester Quadrajet, the results!
Two mishaps, the first shown here, the choke coil I got was wound backwards, it made the choke butterfly wind up TIGHTER as the engine warmed up. I swapped on the one from the old carburetor fast enough, the second mishap made me feel like a crud and what did I mess up later that evening. The car would not start leaving the Etobicoke -Queensway show. It was not getting gas. We got it running by priming the carburetor, and boy, was I ticked at myself. In the end it was not my fault it looks like. The new accelerator pump umbrella and rod was a very poor and frail design, the umbrella came detached and stayed at the bottom of the of the pump well, and was a distressed mess. The maker will get a note from me. The upshot? The old assembly went in, all is perfectly fine, the slight tip-in hesitation is gone now too. Stupid lack of pride it seems these days making parts for even simple things like an old carburetor.





quadrajet done and running
the rebuilt quadrajet running





Which car is faster? Which Car is Faster?




Similar 1/4 mile timeslips to browse:

1976 Chevrolet Vega : 7.780 @ 171.060
Eric DeRoche, Engine: 565ci Ray franks/schmidt 1050's, Supercharger: No Turbos: No Tires: 14-33


1973 Chevrolet Vega : 8.154 @ 171.100
Jim Hull, Engine: 475 big block Chevy, Supercharger: 8-71 Littlefield Tires: 29.5x10.5w


1976 Chevrolet Vega VEGA: 8.530 @ 159.860
Mike, Engine: 415 in. sbc, Tires: Goodyear


1974 Chevrolet Vega : 8.690 @ 155.100
MARTIN LAJOIE, Engine: 506 BBC (BORED/STROKED) 427 TALL DECK, Tires: MICKEY THOMPSON


1972 Chevrolet Vega : 8.800 @ 155.120
Romeo Barcenilla, Engine: Lukovich Racing 565 BBC, Supercharger: none Turbos: none Tires: 15X32X14.5w Hoosier


1971 Chevrolet Vega : 8.812 @ 153.540
Rusty, Engine: 496 Chevy,


1972 Chevrolet Vega 2 door: 8.910 @ 151.870
julio The hammer Reyes, Engine: 510 BB chev, Tires: hoosher


1971 Chevrolet Vega 2 door: 8.980 @ 151.000
jason kimberlin, Engine: 496 big block chevy, Tires: slicks


1971 Chevrolet Vega GT: 9.000 @ 150.000
Dave Donalson, Engine: 496 bbc, Supercharger: none Turbos: none Tires: goodyears


1974 Chevrolet Vega : 9.062 @ 148.590
Greg Eachus, Engine: 498 BBC, Tires: Goodyear


1971 Chevrolet Vega : 9.160 @ 145.280
Pratt Thompson, Engine: 454, Tires: hoosiers


1971 Chevrolet Vega GT: 9.482 @ 139.600
Kenny Snow, Engine: 406, Tires: 29.5x11.5 Hoosier Slicks


1974 Chevrolet Vega : 9.534 @ 142.000
jerry morse, Engine: 388, Supercharger: nope Turbos: nope


1971 Chevrolet Vega : 9.600 @ 137.330
Willy Reerink, Engine: 383 SB, Tires: MT


1974 Chevrolet Vega Hatch back: 9.899 @ 137.120
Kerry Prince, Engine: 355, Tires: 28x10.5x15


1976 Chevrolet Vega : 9.990 @ 136.260
Curt Stewart, Engine: sbc,


1973 Chevrolet Vega : 10.000 @ 130.000
James Bassett, Engine: 406, Tires: MT 26x8.5x15


1971 Chevrolet Vega Panel delivey: 10.000 @ 127.000
glenn mailey, Engine: 355, Tires: Goodyear Eagle 13/30/15


1973 Chevrolet Vega GT Hatchback: 10.040 @ 124.560
James, Engine: 355 small block, Tires: M/T ET Drag slicks 26x10-15


1977 Chevrolet Vega : 10.081 @ 131.810
Shaun Cook, Engine: 383 Stroker 557 hp @ 6500 rpm and 504 lb-Ft @ 5000, Tires: M/T slicks 32X14.5X15


 


©2014 DragTimes - Disclaimer