DSport Mag has Evo cam test part 2 -- all 17 cams.
First off, thanks for Dsport, The Boz & everyone else for making this test happen.
Go buy the magazine, it's worthwhile to have, heck - get a subscription!
Here are a few compares i put together.
fwiw, i really like my s2's in my 2.4L; the graphs above are not from my car, just data plotted from a magazine.
hopefully i can advance the r2 cams enough to reduce the power shift while still realizing a healthy gain up top.
1 thing the graphs dont show, are the reported better low end / transient throttle drivability of the r2's vs the s3 cams.
on paper, they look identical, evidently people are saying the r2's behave & idle a lot nicer
Go buy the magazine, it's worthwhile to have, heck - get a subscription!
Here are a few compares i put together.
fwiw, i really like my s2's in my 2.4L; the graphs above are not from my car, just data plotted from a magazine.
hopefully i can advance the r2 cams enough to reduce the power shift while still realizing a healthy gain up top.
1 thing the graphs dont show, are the reported better low end / transient throttle drivability of the r2's vs the s3 cams.
on paper, they look identical, evidently people are saying the r2's behave & idle a lot nicer
Last edited by Aby@MIL.SPEC; Feb 14, 2014 at 09:25 AM.
i see them..... i also see dead people 
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The Tomei 290s would be IMHO a crap cam on a street and occasional track car... it lost tons of power under the curve... however for a drag only car, these look like they performed. I would venture to say that these cams would more than likely be crap on an OEM non-ported head as well, as you would not be able to take advantage of the benefits if the longer duration.
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The Tomei 290s would be IMHO a crap cam on a street and occasional track car... it lost tons of power under the curve... however for a drag only car, these look like they performed. I would venture to say that these cams would more than likely be crap on an OEM non-ported head as well, as you would not be able to take advantage of the benefits if the longer duration.
On a non ported head without the correct supporting mods etc it would run like crap. Tomei 290 would also not perform well from a dead stop without a 2step or going from stop light to stop light. But you have to remember this test only went to 8500rpm to keep the comparison more equal. So at a certain speed (40-60mph) or rpm (6-7k) where lag is irrelevant the 290 will keep pulling where others cams will fall off. I look at this way. Its all about staying in the powerband. That sweet spot is only 1 downshift away.
Last edited by spoolin d dub; Feb 23, 2014 at 11:01 AM.
Looking at the Dsport cam pro analyzer results my cams are pretty damn big lol. On a non ported head without the correct supporting mods etc it would run like crap. Tomei 290 would also not perform well from a dead stop without a 2step or going from stop light to stop light. But you have to remember this test only went to 8500rpm to keep the comparison more equal. So at a certain speed (40-60mph) or rpm (6-7k) where lag is irrelevant the 290 will keep pulling where others cams will fall off. I look at this way. Its all about staying in the powerband. That sweet spot is only 1 downshift away.
it wasn't my eye sight that caught this... I just wanted to see if the charts lied also.
The 452.33 LB FT @ 7000 rpm in bold on page 101 is what alerted me.. How could the tomei 290 make MORE TQ at 7000 RPM then every other cam yet not have the most horsepower @ 7000.
The 452.33 LB FT @ 7000 rpm in bold on page 101 is what alerted me.. How could the tomei 290 make MORE TQ at 7000 RPM then every other cam yet not have the most horsepower @ 7000.