That being said, my ZZ502 is way down on power using the curve you mentioned. ZZDaryl, Chevy Technician. - Day Three Build Recap. Dec 18, 2020. Request Quote; Click on image above for detailed view of our 502 Chevy Big Block 510 HP . In a spark ignition internal combustion engine, the purpose of … This setting will produce 32º of total advance at wide-open throttle (WOT). By. 502 HO - Maximum displacement with maximum value! (mines match marked by me,hint hint) The adjustable CMP sensors: In each case,all USA cars, the timing spec, is on the under EPA sticker. TURN KEY ENGINE. Satisfied Customers: 12,558. 502 big block what is the timing and what is firing order? Home. Most drag cars do not need an advance curve since their two modes of operation are idle or wide-open throttle. I use 18 degrees initial and 37 degrees at 3000 RPM and it woke the 502 up! Customize Your Item. 502 Chevy Also remember that the position of the spark plug wires does not matter AS LONG AS THE ORDER IS MAINTAINED! Shop MSD 502 Chevy Big Block V8 parts and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. 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. 12 The ZZ 502 comes with Chevrolet's tried-and-true, stamped steel rocker arms. I'm running the engine with a Holley Commander 950 PRO ECU without the GM Spark Control Module and knock sensor wired up. Again, from building Mopars for a long time, not sure what the Chevys like for timing. Answered in 2 minutes by: 6/10/2009. 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. Out of stock. Profile Page. Of course, few took these numbers seriously (except for a few insurance companies). Big Block Chevy Tuning - tips, timing, idle RPM. Ignition Timing. Compatible with most Capacitive Discharge Systems; Not for use with solid core spark plug wires On my Ram Jet 350 the base timing is 10 deg, but total timing at idle (not in service mode) is around 18 deg. 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. 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. SKU: 12568778. Discussion in 'The Hokey Ass Message Board' started by BOSTONCAMARO, Oct 9, 2012. First lets review the setting of the static timing, i.e. Only at www.hotrod.com, the official website for Hot Rod Magazine. Serpentine Belt System … 502 cid LS Engine. I would have told you to save your time and money trying to get a Chevy dealer to try to fix a Ram Jet. Racers soon found the thermal characteristics of this engine weren’t exactly superlative. 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. This is what all big-block crate engines should be: maximum power with a maximum return on your money invested. 811 Posts . 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. Chevrolet Performance Crate Engine 502 HO 502 CID 461 HP 12568778 This product may require vehicle validation(s) for proper fitment. Shown With Optional March Serpentine System. 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. 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. Rich. The # 1 plug wire is used to set timing when using the top marker reference. SKU: 12499121 Category: Big Block Engines. The production-style rockers provide a 1.7:1 ratio. Greg Jones. (0) Reviews: Write first review. 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. 502 Chevy Big Block 530 Horsepower Hang on to your seat! **Updated to be more clear** First, you need to find top dead center on cylinder 1. 580 Lbs. TURN KEY ENGINE. This MSD crank trigger has magnets anchored in the aluminum wheel, and the pickup senses them as they rotate to trigger the ignition box. Our crate engine assembly includes an aluminum, dual-plane intake manifold, a water pump, 14-inch flexplate, balancer and more. Crank trigger ignition systems offer rock-solid timing stability and are the best choice for drag racing. The ZZ502/502 Base engine uses our new cylinder block casting that is stronger and better suited to high-performance combinations. I'm running the engine with a Holley Commander 950 PRO ECU without the GM Spark Control Module and knock sensor wired up. 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. There was a “what-if” question addressed a few months ago in our Performance Q&A column that piqued our interest. Again this is fine as long as the firing order sequence for the engine is maintained and you check your engines timing. from Lynn MA, outside Boston. On a big block chevy with old Chevy heads, that means around 38 degrees (or so). Chevrolet Performance Ram Jet 502 – 502 Hp $ 15,223.09 $ 12,400.24. How To. $11,645.00 plus options below. How to set your base timing, and ignition timing on an older cabureted and distributor equipped engine. You add the carburetor, starter and ignition system – all available from Chevrolet Performance. Please contact us to confirm correct vehicle fitment and usage. The HEI vacuum advance canister should remain discon-nected. Category: Chevy. The Ram Jet 502 blends the legendary torque and performance of the Big-Block with a modern port fuel injection system and … ARRIVES READY TO RUN RIGHT OUT OF THE BOX!! Chevy Mechanic: ZZDaryl, Chevy Technician replied 11 years ago. Shipping: FREE 48 State Truck Freight Shipping (International shipping will require freight quote) Pricing: $7,516.87. Start the engine and adjust the initial timing. While opening and closing points are critical, the secret to a strong performance valve lift curve is the aggressive combination of lift and duration. 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. If you need to rotate the cap for any reason don't worry about pulling the wires and rotating them around. Show More. of Torque Click on image for larger. 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. 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. the initial timing set with no vacuum advance and essentially with no mechanical advance since it is not active at idle. Chevy High-Performance. 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 Perhaps the biggest help found to decrease the heating issues while idling with high ambient temperatures is the proper ignition timing. 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. Discussion Starter • #1 • May 27, 2012. Taken from my post--454 Engine Ignition Information-- Expanded. 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 - … Submitted: 11 years ago. Share this conversation. I do it by setting total timing. Hope this helps. Week To Wicked: Two Days Left To Build our 1955 Chevy! 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. Features: Comes with the Ignitor II Ignition module featuring Cobalt magnets and Hall Effect trigger for stable timing and precise spark distribution. Joined: Aug 11, 2011 Posts: 1,267. MSD 502 Chevy Big Block V8 … I am wondering what you would recommend to set timing on a 502 chevy crate engine with an MSD ignition. Category: Chevy. Out of stock. The production-style rockers provide a 1.7:1 ratio. 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 … Soon found the thermal characteristics of this engine weren ’ t exactly superlative is and. Or so ) it 's from misfiring, raw gas is coming OUT the exhaust makes the eyes it. 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