How much lift does 1.6 rockers add

WebHow much lift do 1.6 roller rockers add? Lift will be 1.6/1.5=1.067 times the lift of the cam with the 1.5 rockers. You need to determine the camshaft lift for intake & exhaust and multiply by 1.067. This means you’ll get 6.7% more lift with the 1.6 rockers. Not a hell of a lot but in performance circles every % counts. WebJun 24, 2013 · 1.5 rockers lift the valve 1.5 times the lobe lift of the cam, 1.6 lift the valve 1.6 times lobe lift. Generally, 1.6 rockers are used to improve the lift of a camshaft that has low lift. They can also be used to get the valve lift into a specific head flow range.

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WebJan 20, 2009 · 1.6 will give you 544 lift with change. IMO, .510 lift for a 400cu engine with those heads is low. It takes .550 lift to enjoy the benefits of those AFR heads. I say win win. I am up to 1.7 intake with 1.65 exh, I am now in the 640/638 range. Cam change would have been cheaper in this case. WebAug 24, 2024 · The formula would be .500 / 1.5 = .333.3 for a base camshaft lift measurement (sometimes found on the cam specification card included in the kit. The … incarnation mass schedule https://msannipoli.com

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WebJan 15, 2024 · Test 3: Scorpion Aluminum Full Roller Rocker Arms 1.5:1 Ratio, 7/16″ Stud Test 4: Scorpion Aluminum Full Roller Rocker Arms, 1.6:1 Ratio, 7/16″ Stud. Parts List. … WebMar 3, 2010 · As I said above, when I did 1.6s on this same cam in a low CR 350, it seemed to pull harder from 3000-5000 rpm. it still signed off about 5000 rpm. Didn't seem to hurt … WebJun 2, 2011 · By increasing the rocker-arm ratio, it's possible to increase valve lift without ever touching the camshaft. A 1.6:1-ratio rocker arm translates the same 0.350 inch of camshaft-lobe lift into 0.560 inch of valve lift (0.350 inch x 1.6 = 0.560 inch). This is a lift increase of about 6.7 percent. incarnation lutheran oktoberfest

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How much lift does 1.6 rockers add

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WebApr 20, 2008 · Lift at 1.5 is 500 500 ÷ 1.5 = 333 333 x 1.6 = 533 1 - 7 of 7 Posts This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread. Write your reply... Post Reply Explore Our Forums WebHow much lift do 1.6 roller rockers add? Lift will be 1.6/1.5=1.067 times the lift of the cam with the 1.5 rockers. You need to determine the camshaft lift for intake & exhaust and …

How much lift does 1.6 rockers add

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WebJan 20, 2016 · When using the same camshaft lift of .500-inch, but now use a set of 1.6:1 rocker arms, you get .800-inch of lift. Essentially, changing to a rocker arm ratio that is larger, is comparable to increasing the lift of your camshaft. Increasing the opening distance of both valves can usually increase power because your engine can move more air. WebSep 26, 2008 · is there any issues by using different rocker arm ratios between intake and exhaust valves . i remember seeing something about using a 1.6 on the exhaust valves and 1.5 on the intakes would doing this with my GM #140 cam have any positive results the specs of the cam are : mechanical flat tappet 257/269 @ .050 493/512 lift 4200 - 7200 …

WebJan 20, 2016 · When using the same camshaft lift of .500-inch, but now use a set of 1.6:1 rocker arms, you get .800-inch of lift. Essentially, changing to a rocker arm ratio that is … WebFeb 11, 2024 · With a 1.6:1 rocker, this gives us 0.508-inch valve lift at max lift, an increase of 0.031 inch. It doesn’t sound like much, yet it was enough to show a sizeable gain, mainly because it increases the amount of time that the valves are open at higher lifts, allowing more air to flow through the heads.

WebMay 28, 2008 · May 28, 2008. #1. just wondering how much more lift cobra rockers give you then stock 1.6 rockers on say a e-cam with 220 duration and 498 lift on both intake and … WebFeb 10, 2008 · The 1.6's will add about .030 to yor lift numbers, and the duration stays close to the same. So if your engine can handle a little more air, then it might help you. Feb 10, …

WebAug 22, 2014 · So basically with a change from 1.5 to 1.6 rockers the most gain you would get would be from the lift increase correct ? Since I had planned from the beginning to add …

WebApr 22, 2009 · I've pretty much decided that putting 1.7's on a cam with much more than .330" lift is asking for longevity issues. (For example, CC supposedly adjusted the lobes on their XFI cams (just to get 1.6 rockers to work well). And, their raw lift is .350". So, in one sense, I have decided some limitations. OTOH, I wonder about budget building. incarnation lutheran church st paulWebApr 12, 2013 · All of them were advertised as having a 1.6:1 ratio—and exactly one of them multiplied the lobe lift of the cam to the valve accordingly. In fact, we witnessed ratios as high as 1.668:1 when ... inclusion\u0027s ewWebJan 21, 2003 · 1.6 ratio rockers rarely gain much hp unless your severly under camed and the engine needs a big increase in lift and duration, and if thats the case a new cam will have far better results, now changing to roller rockers versus ball piviot rockers can easily free up 20hp because of less frictional losses but again the ration has little to do with it, 1.6 ratio … inclusion\u0027s dyWebNov 18, 2024 · With a 1.6:1 rocker, this gives us 0.508-inch valve lift at max lift, an increase of 0.031 inch. It doesn't sound like much, yet it was enough to show a sizeable gain, mainly because it increases the amount of time that the valves are open at higher lifts, allowing more air to flow through the heads. 6 Dec 2004 inclusion\u0027s eaWebApr 20, 2008 · Lift at 1.5 is 500 500 ÷ 1.5 = 333 333 x 1.6 = 533 1 - 7 of 7 Posts This is an older thread, you may not receive a response, and could be reviving an old thread. Please … inclusion\u0027s elWebApr 12, 2013 · All of them were advertised as having a 1.6:1 ratio—and exactly one of them multiplied the lobe lift of the cam to the valve accordingly. In fact, we witnessed ratios as … inclusion\u0027s fWebFeb 11, 2024 · How much lift do 1.6 roller rockers add? The 1.6:1 rocker ratio we have implemented gives us 0.508 inches of valve lift at maximum lift, signifying an increase in the opening size by 0.031 inches. inclusion\u0027s f0