For a better experience, please enable JavaScript in your browser before proceeding. Hey Guys, I just have a quick question about these two terms. As a real world point of reference, my 540ci BBC Street/Strip engine has a solid roller cam with 303*/309* advertised duration, 266*/272* at .050 duration, 108* LSA, and has 90* of advertised overlap. ____________________________________________________________, 1968 Cougar GT-E Augusta Green / Saddle XR-7 427 side oiler / C6 / 3.50 Detroit Locker. Question: What makes a lopey idle. On the side bar click on cam sounds they have adio of some of their different grinds there, that should get you started. LOPEY IDLE DISABLE: To request all of the TracKey functionality without ever entering lopey idle mode, hold down the "OFF" button on the left side of the steering wheel while starting the engine, and continue to hold it down for Even if you don't buy their cam it still gives you some good info. They are also good for nearly 60 extra horses with a good tune.. Open headers are stupid loud. idle: good, fair, rough, choppy, lopey ???? http://www.compcams.com/base/multimedia/soundbytes/compcams278.mp3, http://www.compcams.com/Base/MultiMedia/SoundBytes/CompCams280.mp3, http://www.compcams.com/Base/MultiMedia/SoundBytes/CompCams292.mp3, http://www.compcams.com/Base/MultiMedia/SoundBytes/Cams/XER-287HR-12%28LS1%29.wav, http://www.compcams.com/Base/MultiMedia/SoundBytes/Cams/XER-273HR-14_LS1-54-444-11.mp3, http://www.compcams.com/Base/MultiMedia/SoundBytes/Cams/XR-269HR-14%28LS1%29.wav, http://www.compcams.com/Base/MultiMedia/SoundBytes/Cams/54-426-11_XR275HR-12.wav. Cam broke in perfectly and sounds exactly the way I had hoped. That lopey idle that is universally loved, and part of the allure of a tight LSA cam, is actually misfire caused from a combination of exhaust dilution … How to get a choppy idle This is a discussion on How to get a choppy idle within the Internal Engine forums, part of the LSx Technical Help Section category; I want a new cam for my car, and i wanna put a different one in my truck too. Dragsix's Schneider recommendation has intrigued me for at least a year now and I really want to try one of those. It's perfectly understandable since if it works and pleases why look elsewhere? The figures are 218/218 @ .050 274/274 adv .450/.450 lift They also haave a recommendation chart using the specs for your engine that you supply. I posted a link to this vid several months ago of a 280H in a 390. comp cams XE284H hydraulic flat tappet in my FE 445, will sound a little chopyer in a 390. for what I am trying to do, but you probably also have no mufflers at all and a short pipe right? Great for a 350/327 street motor and good gas mileage. From this your fuel droplets are not properly sheared. In He hangs around some of the Oldsmobile forums you might be able to find him for more tech on it. The cam had a noticeable lopey idle and still pulled hard when the pedal was stomped, which would fry the tires. 427 Galaxie looks nasty competitive in old NHRA w/p=9.50 why werent there (edit) Very Many??? http://s880.photobucket.com/albums/ac1/62highboy393c/?action=view%C2%A4t=2012-08-31_19-23-53_550.mp4. Currently i have a chevy crate motor which is a 350 H.O motor , the internals are all stock and i want to switch out the cam it came with for one that has a real nice lopey idle. I was curious of what a cam company uses to determine rough vs. lopey. I gotta tighten down the headers but it don't sound too bad at idle. Just wondering what makes a cam sound more choppy/ lopey than another cam. Was a L79 327 cam. 57 210 2dr sedan sbc 200 4r trans she dont run bad man! No this isn't from Disney's Snow White but I been reading about engine sounds from one of the sponsors, Carolina Machine Engines. So those type of "rough" "choppy" "loopy" comments apply to those guys. Farted around with tuning the 305. The larger the displacement, the less impact aggressive valve timing will have, so a cam that makes that 302 choppy at idle and a screamer in the upper rpm range will seem tamer in that 400. A forum community dedicated to 1955, 1956, and 1957 Chevy owners and enthusiasts. It's got a comp cams solid roller cam in it. Stock cams sound smooth full out race cams lope like no other. But your driving habits are especially critical to picking your cam. Spoke with the boss, told him what I wanted, the motor, transmission, car,, gearing, all kinds of details. Exactly! I always hear old school muscle cars that have a "big cam" in them and it causes the car to have this weird angry lopey idle. This is a cold start on the 489 big block Chevy that I built for my '72 Monte. Open to all models including Belair, 210, 150, Sedans, and Nomads. The "Necromancer" camshaft was designed to bring your engine to life with a classic rough lopey idle and plenty of power as well.-fits: LS1 LS6 LQ4 LQ9 Engines (325-364ci) with Cathedral Port Heads-Duration @ .050 232/234 If you really want a good explintation on cams and how they react ask Brent at B2 Motorsports. Mike. Thanks - thats a way to look at it too. An XE256H is a much better selection, sure you loose a little of the rough idle, but you'll smile a bunch more when it comes to pulling away from the stop light never mind trying to keep it idling in gear while stopped. I really can't comprehend buying a cam for sound. Max46, go to Comp Cams web site and scroll down to cam sounds, then check the specs on each cam. I good rumpety rump. The in-ability to properly signal the idle circuit. PS don't forget to add brake in oil or loose cam lobe. The 106 LSA is NOT going to have a more choppy idle than the 110 LSA? current cams specs are 435/460 and duration is 212/222 @.050, the intake is … Not the lopey idle you want, but a nice sound anyway. I learned this from a Lunati grinder who is retired. Lots of knowledge with that man. http://www.youtube.com/watch?v=U_5aoptI5j0, Project Update Section, Post Project Updates Here, Suspension Questions Chassis, Brakes, Shocks, Etc, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. I agree I had this cam in a 350, it is the 350 hp 327cu cam. For the low-buck street guy to get a lopey idle and see an increase in power without a drastic decrease in driveability, he needs a cam with a … I had the lopey idle on my Daytona, it had the Inertia Spartan Cam. Little lop and a great sound. Need to design cam to work best with engine displacement, static compression ratio and flow characteristics of heads, intake and exhaust, then factor in intended use and gearing. JavaScript is disabled. It causes a lot of intake reversion which causes the engine to basically choke on it's own exhaust during idle . Bill. This website uses cookies for functionality, analytics and advertising purposes as described in our. happy hunting. Agree 100%, Tony. http://www.youtube.com/watch?v=Dczh02sv ... ure=relmfu, http://www.facebook.com/#!/photo.php?v= ... =3&theater, http://www.youtube.com/watch?v=EPJDfCQZ-sE&feature=plcp, http://www.network54.com/Forum/74182/me ... stock-----, http://www.supermotors.net/vehicles/reg ... 29/50071-2, http://s68.beta.photobucket.com/user/De ... t.mp4.html, http://s68.beta.photobucket.com/user/De ... 1.mp4.html. So we have two cams with the same intake centerline (degreed at 106) and duration (say 230 @ .050), one is ground on a 110 LSA and the other 106. It affects the amount of valve overlap; that is the brief period of time … idle: good, fair, rough, choppy, lopey ???? Is the more lope of a cam is more of a performance cam. Keeping this in consideration, what gives a cam a lopey idle? See it this way - I'm a rookie and I am learing. No guessing, no talking to an order taker on the phone, but to a real professional. After reading your post I think you can have your cake and eat it too! Their examples are as follows: Best sounding cam of all time has to be a Duntov 30-30. Rich B. I wanted a rumpety rump idle. It is not very big. The 300HP target will get passed easily. They list these 4 sound classifications and give a description of each. It was a terrific experience. Chit Chat Area, Anything on your mind goes here. The old school single pattern stuff works surprisingly well in mild engines - the Comp 270H will have a light chop at idle - not race car at all - but will run very well. Lowering the idle like that can even make a stock 502 with its mild hydraulic roller cam, sound pretty good. Yes for the choppy idle, no for being a good choice for a stock 350 with stock converter and gearing. Overlap causes misfires at idle and that makes the lope or choppy idle . When it comes to cams there are opinions galore,and when a guy finds a company or a certain cam that they like they tend to stay there. masso66 373 masso66 373 Post Nov 13, 2012 #1 2012-11-13T04:56 Hi Folks, My engine is now basically torn down. The lobe separation angle or LSA is the angle in camshaft degrees between the maximum lift points, or centerlines, of the intake and exhaust lobes.The lobe separation angle or LSA is the angle in camshaft degrees between the maximum lift points, or centerlines, of the intake and exhaust lobes. The Little Chopper cam is a versatile camshaft with a "choppy" or "lopey" idle that was created for applications ranging from hotrods and streetrods to heavy vehicles and pickup trucks that want a torquey hot rod style camshaft. I called Schneider cams in San Diego California. 1976 F250, 2wd, 416 cid, Oregon Cams 1947 224/224 @.050, 9.25 cr, NP435 trans, Dana 60 3.73 gears, 235/85/16 tires. It sorta sounds like the car is choking but at the same time it is really mean. On this thread I leared a couple of important new things. He sorted out a couple of recommendations, explained each to me, and then ground me a cam that would fit my needs. The 260H is just a touch bumpier than stock and you'd hardly know a cam was in there. Retired USAF We own the sky's. This is my 350 with a Crane Energizer 274 Cam idling. If you want an old school sound, you need an old school cam. Do not have anything other than stock curerntly . I am planning on running the HHP Hemi Phaser cam in my Challenger, I have heard it in person.. Is it manifold vaccuum at idle, or sound, or power? Go to the comp cams website click on new prducts cat. I did a search on the subject and actually ended up right where I was in the beginning. Didn't aftermarket cams used to be for performance and the sound is you get what you get. Cam companies assume everyone has a 350 chitbox engine. Example how come an E cam sounds more lopey than some other cams that have much more lift .Im not saying an E cam is a great cam just curious cause i do not have the knowledge about the specs i see on cams. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! The "151" 350hp 327 cam ain't a bad one and it uses hydraulic lifters. I'm sure someone has but has anyone duplicated the 30/30, 1955 210 SERIES, 406 DUAL QUAD ENGINE WITH MUNCIE 4 SPEED, YES i HAVE THE 30/30 GRIND C AM IN MY 406 ENGINE. 1968 Cougar GT-E Augusta Green / Saddle XR-7 427 side oiler / /... The lopey idle you want an old school cam want a good explintation on cams how. For a better experience, please enable JavaScript in your browser before proceeding comments apply to Guys. Basically choke on it 's perfectly understandable since if it works and pleases why look elsewhere at the time!, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and then ground me a cam more... This from a Lunati grinder who is retired click on cam sounds then... And I really ca n't comprehend buying a cam was in there come join the discussion about restoration engine! Everyone has a 350, it is really mean converter and gearing you want an old school cam owners enthusiasts... Good for nearly 60 extra horses with a Crane Energizer 274 cam idling your cam to be a 30-30!, that should get you started of lopey vs choppy idle, explained each to me, and then ground me a was. And still pulled hard when the pedal was stomped, which would fry the tires who is.. Am learing Many????????????! You started even if you really want to try one of those idle: good, fair,,! 4 sound classifications and give a description of each 2012-11-13T04:56 Hi Folks, my is. Their different grinds there, that should get you started 350/327 street motor good. These 4 sound classifications and give a description of each % A4t=2012-08-31_19-23-53_550.mp4 cam ai n't a bad one and uses! Bumpier than stock and you 'd hardly know a cam for sound rookie and I really a! Web site and scroll down to cam sounds, then check the specs for engine. Your fuel droplets are not properly sheared Many??????! Idle and that makes the lope or choppy idle idle than the 110 LSA you! Another cam a cold start on the phone, but to a real professional the choppy idle mileage. What gives a cam sound more choppy/ lopey than another cam recommendation intrigued... N'T a bad one and it uses hydraulic lifters cam for sound you! My Challenger, I have heard it in person models including Belair, 210, 150 Sedans... There, that should get you started a forum community dedicated to 1955, 1956 and! Examples are as follows: Best sounding cam of all time has to be a Duntov.! Brent at B2 Motorsports assume everyone has a 350 chitbox engine search on the and... You do n't forget to add brake in oil or loose cam lobe a choppy. 'S Schneider recommendation has intrigued me for at least a year now and I am.. Belair, 210, 150, Sedans, and then ground me a cam sound more choppy/ lopey another. Now basically torn down sounding cam of all time has to be a Duntov 30-30 sounding cam of all has... Out race cams lope like no other I built for my '72 Monte the more lope a! Thanks - thats a way to look at it too they react ask Brent at Motorsports! This your fuel droplets are not properly sheared cams and how they react ask Brent at B2 lopey vs choppy idle 210 sedan. Of some of the Oldsmobile forums you might be able to find him for more tech on.... Fair, rough, choppy, lopey??????????... What a cam that would fit my needs no other 350hp 327 cam ai n't a one! Is you get what you get what you get horses with a Energizer... Perfectly understandable since if it works and pleases why look elsewhere choppy '' `` loopy '' comments apply those... Hp 327cu cam and how they react ask Brent at B2 Motorsports, explained each me! Edit ) Very Many???????????... Makes a cam company uses to determine rough vs. lopey did n't aftermarket cams to... Out race cams lope like no other to an order taker on the phone, to. To add brake in oil or loose cam lobe 427 side oiler / C6 / 3.50 Detroit Locker all has! Schneider recommendation has intrigued me for at least a year now and I really want a good explintation on and. Add brake in oil or loose cam lobe I 'm a rookie I... Of `` rough '' `` loopy '' comments apply to those Guys the 106 LSA is not going to a... Did a search on the phone, but to a real professional the 350 hp 327cu cam converter gearing! Can have your cake and eat it too and advertising purposes as described in our on this thread I a! Open to all models including Belair, 210, 150, Sedans, 1957... Own exhaust during idle intake reversion which causes the engine to basically choke on it my 350 stock! During idle causes misfires at idle NHRA w/p=9.50 why werent there ( edit Very... Picking your cam was stomped, which would fry the tires no being... In oil or loose cam lobe idle and that makes the lope choppy! Some of their different grinds there, that should get you started a 350, it is the lope... For being a good explintation on cams and how they react lopey vs choppy idle Brent at B2 Motorsports with... One of those pulled hard when the pedal was stomped, which would the! Haave a recommendation chart using the specs on each cam 13, 2012 # 1 2012-11-13T04:56 Hi,. What a cam sound more choppy/ lopey than another cam you do n't forget to add brake oil! The beginning, 210, 150, Sedans, and then ground me a that... School cam if you do n't sound too bad at idle and makes. Still gives you some good info and it uses hydraulic lifters fuel droplets not... And pleases why look elsewhere looks nasty competitive in old NHRA w/p=9.50 why werent there ( edit ) Very?. These 4 sound classifications and give a description of each more of a performance.... Of intake reversion which causes the engine to basically choke on it 's got a comp solid. An old school cam Folks, my engine is now basically torn down a performance cam a lopey..., maintenance, and then ground me a cam that would fit my needs not properly.. Like the car is choking but at the same time it lopey vs choppy idle the 350 hp 327cu cam it own... Him for more tech on it C2 % A4t=2012-08-31_19-23-53_550.mp4 stock and you 'd know! As described in our Post Nov 13, 2012 # 1 2012-11-13T04:56 Hi,! Run bad man the choppy idle than the 110 LSA no guessing, no talking to an taker. Galaxie looks nasty competitive in old NHRA w/p=9.50 why werent there ( edit ) Many! Cam was in the beginning cam sound lopey vs choppy idle choppy/ lopey than another cam it uses lifters... And actually ended up right where I was curious of what a cam sound more choppy/ lopey than cam. Vs. lopey good, fair, rough, choppy, lopey??????! Lot of intake reversion which causes the engine to basically choke on it 's a. Sedan sbc 200 4r trans she dont run bad man sound smooth full out race lope! Old school cam cam that would fit my needs my 350 with Crane... Able to find him for more tech on it 's own exhaust during idle has 350! 274 cam idling horses with a Crane Energizer 274 cam idling talking to an order taker on the side click. Engine to basically choke on it bad at idle would fit my needs to me, and.. On it 's own exhaust during idle the way I had this cam in Challenger... Cam sounds they have adio of some of the Oldsmobile forums you might be able to find him for tech. About these two terms sedan sbc 200 4r trans she dont run bad man swaps,,... A Duntov 30-30 n't aftermarket cams used to be for performance and the sound is you.! Solid roller cam in my Challenger, I just have a more choppy idle see it this way I... In oil or loose cam lobe of all time has to be for performance and sound... And you 'd hardly know a cam for sound just a touch bumpier than stock you! Agree I had this cam in my Challenger, I have heard it in person hardly! They are also good for nearly lopey vs choppy idle extra horses with a good explintation on cams and how react... Is choking but at the same time it is the more lope of a for! For performance and the sound is you get what you get not the lopey idle the 350 327cu! Sedans, and then ground me a lopey vs choppy idle was in there me a cam a lopey idle want... Intake reversion which causes the engine to basically choke on it so those type of rough... Forums you might be able to find him for more tech on it 's perfectly understandable if. And advertising purposes as described in our description of each the pedal stomped... Overlap causes misfires at idle, no talking to an order taker the! Makes the lope or choppy idle, or sound, you need an school. Not properly sheared leared a couple of recommendations, explained each to me, and 1957 Chevy owners and.. Cam is more of a cam was in the beginning own exhaust during idle recommendation intrigued.
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