How much lift does 1.6 rockers add
WebApr 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 … 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 …
How much lift does 1.6 rockers add
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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 … 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 …
WebMar 27, 2005 · Well stock stamp steal rockers are usually around 1.48 (roughly, some times less) unless there aftermarket stamp steal like Crane and such. Anyway, 1.6 not only gives you more peak lift over 1.5, it also gives you a faster valve opening rate, but at the cost of putting more pressure on the cam lobes. Rich. Mar 26, 2005. WebOct 27, 2001 · Adding 1.6 in place of 1.5 rockers on the intake would add some lift and allow more into the cyl but it won't have any place to go... I think maybe the opposite and putting them on the exhaust might be the better choice. Take a look at most cam profiles and you will see 2 types, 1 the intake and exhaust lift and duration are the same.
WebDec 7, 2004 · For instance, with your stock 1.5 ratio rocker arms your valve lift is .488". with a 1.6 ratio it would be 6.7% higher, or .520". This is an increase in lift of .033" in lift. Going to a higher ratio rocker arm will give you some nominal increase in power. You can't expect big gains from them. 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.
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.
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 … grecc brain health bookletWebFeb 15, 2005 · If your cam is .300" lift and you have a rocker ratio of 1.6, then your valve lift = .300 x 1.6 = .480". So just plug in 1.7 for the 1.6 and you get your lift with 1.7, which is … florist near newmarket nhWebFeb 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. grecas bonitasWebOct 2, 2024 · Very simple to figure. Here we go. To figure what lift will be from 1.5, divide the lift at the valve by 1.5. This figure equals lobe lift, which is the actual lift of the camshaft lobe without rocker ratio influence. No, take the lobe lift figure and multiply that times 1.6 and you have your new lift number using 1.6 rockers. grecas mitlaWebHow 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. florist near new berlin wiWebNov 25, 2024 · How much lift do 1.6 roller rockers add? So, the 1.6:1 rocker upgrade we made to our engine provided us with a significant increase in valve lift; 0.508-inch of … grec balmWebAug 10, 2005 · If you want to know how much take the lift of your cam divide it by 1.6 example .587 (Lift) / 1.6 (rocker) = .366875 now take. .366875 x 1.7 = .623 <---thats the … grec bangladesh