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I really appreciate you doing this. Fun to see the differences.How about this bad boy? This is my final what if. 20R/22R Stage 2 Camshaft Part Number: 1022036 4WD / Pre-Runner / Hot Street 2WD (1500-5500 rpm) Intake Exhaust Valve Lash .008 .012 Valve Lift .460 .460 Advertised Duration 270° 270° Duration @ .050" 240° 240° Lobe Center 102° 118° Lobe Seperation 110° Intake Opens 15° BTDC Intake Closes 42° ABDC Exhaust Opens 59° BBDC Exhaust Closes 0° ATDC
Have you seen any info on the old mikuni cams? I bought mine nos off ebay years ago and have never come across any solid specs, don't even remember it coming in a box This is what an old member found once:I did a quick google on mikuni toyota cam, and came up with a lift of I think .430 and a duration of around 280*...the problem is that desktop dyno requires intake and exhaust valve opening and closing degrees..IVO 2.0*BTDC IVC 32.0*ATDCEVO 44.0* BBDC EVC 0.0* ATDC
...the problem is that desktop dyno requires intake and exhaust valve opening and closing degrees..
equals:intake duration 214exhaust duration 224intake centerline 105exhaust centerline 112lobe separation 108.5The 214,224 numbers sound like a .050 number, so I'm guessing 272,282
Thanks! I'd like to try this cam on a better engine. With the 20r head it will rev to the moon and pull way harder than the stock cam
I have updated the sheet again.If you are interested, please look at the bottom of the sheet, I added another profile. Please look at the torque numbers, especially from off idle through 4,000 RPMs, compared to the other cams.Any comments will be appreciated.Thanks,Gnarls.
Thanks. So the last profile is of your own design?
It's funny that the stock cam seems to do better for the 20r than it does for the 22r. Kind of makes me think they designed the stock cam profile around the 20r and then just decided it was good enough for the 22r and kept using it.
Yes, I spent lots of hours "playing" with the software. Since I stopped playing when I totaled my 1985 22R, I did not talk to a cam shop to consult with them on "my" design profile. I was seriously thinking about having my own camshaft ground to my "tweaked" specs.Gnarls.
I was looking at the Schneider Racing Cams site. They have a bunch of different grinds. I had one of their lower RPM cams in my first 22re and it was pretty good stuff.The great thing about a dead horse is how much of the horse you can actually use. After you eat it there is the hide, bones can be used for tools, sinews can be used for sewing and backing bows, the stomach can be made into a water container...
Anything worth while?
Cool. They should have their head screwed on right. They come from the old school hot rod scene.
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