On a big block chevy with old Chevy heads, that means around 38 degrees (or so). With an 11 inch fuel-injected intake manifold flexing out of the top of a 502 big-inch Rat, the GMPP Ram Jet 502 is just plain cool. Customize Your Item. Open hood, and look up. from Lynn MA, outside Boston. 4. Engine ignition timing procedures for G16 to J18/20 up to H27 engines. Out of stock. If you need to rotate the cap for any reason don't worry about pulling the wires and rotating them around. Show Less. Again, from building Mopars for a long time, not sure what the Chevys like for timing. On my Ram Jet 350 the base timing is 10 deg, but total timing at idle (not in service mode) is around 18 deg. Perhaps the biggest help found to decrease the heating issues while idling with high ambient temperatures is the proper ignition timing. Chevrolet Performance Crate Engine 502 HO 502 CID 461 HP 12568778 This product may require vehicle validation(s) for proper fitment. Ignition Timing As you probably can guess, the timing advance curve for older Chevy V8’s was set up by the factory as a compromise. SKU: 12499121 Category: Big Block Engines. This is a little how-to for setting the initial ignition timing on a small block Chevy before its ever been run. The Ram Jet 502 blends the legendary torque and performance of the Big-Block with a modern port fuel injection system and … Only at www.hotrod.com, the official website for Hot Rod Magazine. Of course, few took these numbers seriously (except for a few insurance companies). Serpentine Belt System … Ignition Timing. BOSTONCAMARO. Category: Chevy. Crank trigger ignition systems offer rock-solid timing stability and are the best choice for drag racing. By. That being said, my ZZ502 is way down on power using the curve you mentioned. 811 Posts . Hope this helps. 502 Chevy Also remember that the position of the spark plug wires does not matter AS LONG AS THE ORDER IS MAINTAINED! I'm running the engine with a Holley Commander 950 PRO ECU without the GM Spark Control Module and knock sensor wired up. Check out the Ram Jet 350 here. Chevy High-Performance. Joined: Aug 11, 2011 Posts: 1,267. Taken from my post--454 Engine Ignition Information-- Expanded. of Torque Click on image for larger. Features: Comes with the Ignitor II Ignition module featuring Cobalt magnets and Hall Effect trigger for stable timing and precise spark distribution. 502 cid LS Engine. Affordable Big-Block performance with huge torque and 461 hp With 461 horsepower and 558 lb-ft of torque, our 502 HO crate engine has power on tap for every need — whether it’s a ’69 Chevelle at the drag strip or the Suburban that towed it there. Dave is right on about application being the key to timing. Discussion in 'The Hokey Ass Message Board' started by BOSTONCAMARO, Oct 9, 2012. You add the carburetor, starter and ignition system – all available from Chevrolet Performance. 502 big block what is the timing and what is firing order? Check the timing mark first before setting timing, using both plugs to check the timing before proceeding. I'm running the engine with a Holley Commander 950 PRO ECU without the GM Spark Control Module and knock sensor wired up. Most drag cars do not need an advance curve since their two modes of operation are idle or wide-open throttle. SKU: 12568778. ARRIVES READY TO RUN RIGHT OUT OF THE BOX!! Shop MSD 502 Chevy Big Block V8 parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. Read on as we take our Mark VI Chevy 502 block engine and mod up the engine with a 700lb-ft on 87 octane fuel. Rich. This is what all big-block crate engines should be: maximum power with a maximum return on your money invested. I think the spark tables for the 502 are about the same at idle. usually when the exhaust makes the eyes water it's from misfiring, raw gas is coming out the exhaust. Big Block Chevy Tuning - tips, timing, idle RPM. The production-style rockers provide a 1.7:1 ratio. Answered in 2 minutes by: 6/10/2009. While opening and closing points are critical, the secret to a strong performance valve lift curve is the aggressive combination of lift and duration. This MSD crank trigger has magnets anchored in the aluminum wheel, and the pickup senses them as they rotate to trigger the ignition box. Please contact us to confirm correct vehicle fitment and usage. I was getting ready to remove my headers to send them off for coating but decided to do one more timing check to make sure the timing was synced up on the Ramjet 502 so I don't burn the headers up when they get back. I use 18 degrees initial and 37 degrees at 3000 RPM and it woke the 502 up! TURN KEY ENGINE. 580 Lbs. Buy Rareelectrical New Ignition Control Module Compatible With Marine Inboard With Gm Engine By Part Numbers 10482830 3854003 16139399 D1965A 811637 811637T 850487: Electronic Ignition - Amazon.com FREE DELIVERY possible on eligible purchases Hi, We are just getting my dads car going, tonight had it running, runs good, strong, revs clean etc, but seems when we idle it down to 1300 - … How To. Plug numbering Left (Drivers side) 1,3,5 and 7, Right side 2,4,6, and 8. Too bad you didn't post earlier. The HEI vacuum advance canister should remain discon-nected. We can outfit your engine with the exclusive March Performance serpentine belt system. Out of stock. (0) Reviews: Write first review. Setting Ignition Timing Curves Tick-Tock Timing … How to set your base timing, and ignition timing on an older cabureted and distributor equipped engine. Greg Jones. Discussion Starter • #1 • May 27, 2012. Show More. $11,645.00 plus options below. The DIY foundation for big torque It’s simple: We offer the ZZ502/502 Base crate engine for builders who want the super-strong bottom end and high-flow aluminum oval-port cylinder heads, but also want to finish the engine their way. Chevy Mechanic: ZZDaryl, Chevy Technician replied 11 years ago. Submitted: 11 years ago. **Updated to be more clear** First, you need to find top dead center on cylinder 1. TURN KEY ENGINE. Initial Ignition Timing: ... Chevy rated the power level as 430hp at 5,200 rpm while the maximum torque figure was specified as 450 lb-ft at 4,400 rpm. Note* this post assumes that you already know how to time a running engine, just not one that never been run before or has had its distributor removed and its timing settings lost. Profile Page. Category: Chevy. The # 1 plug wire is used to set timing when using the top marker reference. 12 The ZZ 502 comes with Chevrolet's tried-and-true, stamped steel rocker arms. Taylor optimized ignition timing at 37 degrees for both cylinder heads. the initial timing set with no vacuum advance and essentially with no mechanical advance since it is not active at idle. Shown With Optional Serpentine System. Satisfied Customers: 12,558. The production-style rockers provide a 1.7:1 ratio. Duration is time in degrees of the valve event curve between valve opening and closing but lift is limited by the duration. 502 Chevy Big Block 530 Horsepower Hang on to your seat! Week To Wicked: Two Days Left To Build our 1955 Chevy! ZZDaryl, Chevy Technician. Chevrolet Performance Ram Jet 502 – 502 Hp $ 15,223.09 $ 12,400.24. Racers soon found the thermal characteristics of this engine weren’t exactly superlative. Member. I went with the MSD Digital E- Curve # 8394 as it is so easily programed. It does not have vacuum advance and it has the 6al box and blaster coil, I have it set at 18 degrees at 800 rpm and it seems to start and run well but after I drive it … I do it by setting total timing. Share this conversation. Dec 18, 2020. Set the ignition timing to 10º before top dead center (BTDC) at 650 rpm with the vacuum advance line to the distributor disconnected and plugged. Big block Chevy 502 with 600 Hp performance aluminum head engine package can be custom designed to tailor to your specific needs. Compatible with most Capacitive Discharge Systems; Not for use with solid core spark plug wires I would have told you to save your time and money trying to get a Chevy dealer to try to fix a Ram Jet. Again this is fine as long as the firing order sequence for the engine is maintained and you check your engines timing. Ask Your Own Chevy Question. Home. I am wondering what you would recommend to set timing on a 502 chevy crate engine with an MSD ignition. Ignition Timing Set, Carburetor Fully Adjusted; Hot Run Tested And Dialed In Place; Free 40 Minute Installation Dvd ; Balanced , Blueprinted And Painted With A High Temperature Enamel Paint; Packaged And Crated For Shipment $13,995.00 $12,995.00. Not only attractive, the Ram Jet intake adds a significant amount of function to the big-block with amazing throttle response that you just have to experience to believe. Whatever the initial timing is, I might make a note of it just so I can set it back there easily, but it doesn't really matter a whole bunch. Shown With Optional March Serpentine System. Why Chevy Stuff here? 388 cid Whipple-Supercharged LS7 Engine; Twin-Turbo 427 LSX Engine ; 1970s LT1 Chevy Street Engine; Stage 3 Turbo 6.0L Powerstroke Engine; Twin-Turbo Stage 2 Duramax Engine; Components Understanding Ignition Timing: Making Maximum Power Means Knowing the Science. All engines can be custom painted to match your vehicle at your request. Chevy V8 Billet Distributor - Pertronix D200800. MAKE A STATEMENT UNDER THE HOOD! Description ; Description The Ram Jet 502 is discontinued. First lets review the setting of the static timing, i.e. The ZZ502/502 Base engine uses our new cylinder block casting that is stronger and better suited to high-performance combinations. There was a “what-if” question addressed a few months ago in our Performance Q&A column that piqued our interest. I was getting ready to remove my headers to send them off for coating but decided to do one more timing check to make sure the timing was synced up on the Ramjet 502 so I don't burn the headers up when they get back. Shipping: FREE 48 State Truck Freight Shipping (International shipping will require freight quote) Pricing: $7,516.87. 100% (USA/Canada ... Chevy Trackers 2000 to 2004 , only a factory scan tool, will freeze timing to set timing. This setting will produce 32º of total advance at wide-open throttle (WOT). 502 HO - Maximum displacement with maximum value! Second, the ignition timing curve can be tailored precisely to each individual cylinder, so the engine can, and this is important, run more compression because it is the first cylinder to detonate that limits the use of a single, mean, best-torque timing. ARRIVES READY TO RUN RIGHT OUT OF THE BOX!! The distributor timing curve and initial advance settings were designed to accommodate a wide range of operating conditions, such as driving habits, weather, altitude, maintenance schedules, and gasoline quality. Our crate engine assembly includes an aluminum, dual-plane intake manifold, a water pump, 14-inch flexplate, balancer and more. Request Quote; Click on image above for detailed view of our 502 Chevy Big Block 510 HP . Start the engine and adjust the initial timing. 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