Lancer Evo Jun 272 Cams Evolution 8 Viii 4g63 Cam Shafts Camshafts Mitsubishi on 2040-parts.com

Evo 8 JUN 272 cam shafts. Approx 8k miles on them, in great shape. These cams are very hard to find and are hands down the highest quality cam you can buy for your evo. Here's what AMS had to say about them: " At roughly 40-41psi on a GT42 we made about 55-60whp more with the JUN 272's over the HKS 280's" Duration Lift Intake 272 10.8 Exhaust 272 10.8 at 1mm= The 272 HKS have 212* of duration @ 1mm lift. The 272 JUN have 235* of duration @ 1mm lift The Kelford 272 have 226* of duration at 1mm lift. From here: http://highboostforum.com/forum/archive/index.php/t-28433.html?s=7705093074ae4831564b79101431ee65 Quinn Whipple02-20-2012, 05:28 PMAs many of you know I do 4g63 valve train manufacturing and camshaft research and analysis. We have electronic measuring equipment that will measure to 0.00001 of an inch and 1/10th of a degree radially, They do make higher resolution measurement sensors, but I find that 1/100,000th of an inch is enough resolution for my needs. I do this research mainly to serve my own purposes and product development. I have "no agenda" and no "ax to grind". We look at as many camshafts as we can, and collect as much data as possible because there is great horse power gains when you match the camshaft to the head flow, intake manifold, exhaust header, and displacement. You can tell allot about the quality of a camshaft when you look at it at 1/100,000th of an inch granularity. The #1 mis-conception in the camshaft world deals with duration at the valve, vs duration at the camshaft lobe. Most camshaft manufactures are selling you a camshaft based on duration at the valve. There are problems with this and in reality, people can say and advertise whatever they want regarding camshafts specifications. We choose to measure at the lobe, from there the valve motion is mathematical calculation based on the dimensions and engineering of a "perfect" valve train. I find this method to be the most consistent way to have comparable data. Anytime I see someone advertise a "new" camshaft, or "custom" or "their grind" camshaft we will enlist a secret shopper to anonymously acquire a set of sticks for measurement and analysis. I have looked at camshafts from every major manufacturer, and most of the major shops. These include camshafts from JUN, Comp Cams, GSC, Crower, Brian Crower, HKS, Crane, Forced Performance, Buschur Racing, and others. Here is the truth, Assuming that the cylinder head isn't garbage and is working correctly, the more degrees of crankshaft rotation that the valve is open, and the more time the valve spends where the head flows, the more air is going to move though the motor which is then more power. There are always engineering tradeoffs that will cause drop in low end power or choke top end power. I get excited when I read one company claiming that a camshaft is making more horse power than a different camshaft. When I read on the SoCal Evo list that Reese Tuning "designed" a "new" and "unique" camshaft, we did our S.O.P (Standard Operating Procedure). We had a 3rd party aquire the shafts and we measured them My favorite camshaft for manufacturing quality is authentic JUN camshafts. I have a set here that I put in the machine the other day to collect some data. With these camshafts they are advertised to be the same lift on the intake and the exhaust. One of the toughest things is to ensure that a camshaft is consistent lobe to lobe and camshaft to camshaft. These camshafts measured consistent between lobes and even between camshafts down to 1/100,000th of an inch. They also had no base circle runout. Here are a couple of photo's to show you the pureness of the machine work from JUN http://mitsuevo.com/4g63_build/3/IMG_0771.JPG http://mitsuevo.com/4g63_build/3/IMG_0772.JPG These are multiple lobes and even two different camshafts and they measured exact lobe and net valve lift down to 1/100,000th of an inch. The downside to JUN is their price. Authentic JUN camshafts are of the most expensive in the market, but you get what you pay for. I mentioned earlier that JUN is my favorite. JUN is also the manufacturing benchmark that I measure all camshafts against. JUN isn't the "biggest" camshaft in the 4G63 Market, but it is the most consistently excellent in manufacturing quality. With a head that is working properly an authentic JUN 272 has been proven time after time to be capable of over 600 wheel horse power. It can be argued that there is an amount of deviance from "perfect" that is still acceptable. So here is my rundown of a few camshafts and their "real" data. No marketing "hype" just the real numbers: -------------------------------------------------------------------------------------- Stock Evo 9 camshaft: Intake Net Valve Lift: .40373" Intake durration @ .050 lobe lift: 187.7 degrees Intake Lobe Area: 16.54 Exhaust Net Valve Lift: .37102" Exhaust duration @ .050 lobe lift: 184.9 degrees Intake Lobe Area: 15.17 http://mitsuevo.com/4g63_build/3/Stock-E9-Intake.png As "small" as the Stock Evo 9 camshaft looks, it is about the same size as the HKS 272's we use to run in 1gen and 2gen DSM motors. -------------------------------------------------------------------------------------- Authentic JUN 272: Intake Net Valve Lift: .41829 intake duration @ .050 lobe lift: 211.5 Intake duration @ .100 lobe lift: 177.1 Intake lobe area: 19.32 Exhaust Net Valve Lift: .41829 Exhaust duration @ .050 lobe lift: 211.5 Exhaust duration @ .100 lobe lift: 176.8 Exhaust lobe area: 19.29 Ok well that sums it up, great set of cams here. I'm only selling the cams, not the JUN key chain, unless bidding goes over $550. I will only ship to the lower 48 states as they will go via FedEx Ground and will be insured. I will not ship to Alaska, HI or PR due to not being able to utilize FedEx Ground. Please check my other auctions as I will be listing SuperTech dual valve springs with Ti retainers that are a perfect match for these awesome cams.