Why use a reverse split Cam?
#21
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Originally Posted by Geoff
I will work on that comparison.
You have been on this board long enough to know a little something about valve events.
Bottom line is that if you look at the amount of overlap and where it is in relationship to TDC, our 230/236 will definitely make more PEAK power, but not necessarily more area under the curve. Again based on past testing either of these cams could be either forward or reverse split and basically do the same as they are already doing. EVERY internet 'expert' knows the reverse split 'doesn't work' so we made this one a forward split. IMHO the exhaust opening point is probably the least sensitive parameter for a properly tuned header system on a street motor. Your mileage may vary, J/K
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#22
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Originally Posted by Geoff
I will work on that comparison.
You have been on this board long enough to know a little something about valve events.
Bottom line is that if you look at the amount of overlap and where it is in relationship to TDC, our 230/236 will definitely make more PEAK power, but not necessarily more area under the curve. Again based on past testing either of these cams could be either forward or reverse split and basically do the same as they are already doing. EVERY internet 'expert' knows the reverse split 'doesn't work' so we made this one a forward split. IMHO the exhaust opening point is probably the least sensitive parameter for a properly tuned header system on a street motor. Your mileage may vary, J/K
.
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Didn't you get the memo??? Peak power is all that matters!
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#23
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Originally Posted by dubs6
TXhorns281 cam only TR230 full bolt on. once again flat as a 13 yr old.
https://webspace.utexas.edu/wl333/lastdyno.jpg
https://webspace.utexas.edu/wl333/lastdyno.jpg
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#24
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I've been really looking at this cam too, along with the MTI X1 cam. This thread has answered many of my questions! I see the graphs and all....like others said it doesn't make hardly any Hp/Tq difference from stock till the higher rpm's. Maybe i'm too greedy but I want a cam that makes a better low and mid Hp/Tq and still have good high Hp/Tq numbers. I'm looking for 400+ rwhp. I will get a tune!!
FYI...just looking now because I stilll need to get other mods like headers/ory and all the goodies to swap a cam....springs, pushrods...ect.
FYI...just looking now because I stilll need to get other mods like headers/ory and all the goodies to swap a cam....springs, pushrods...ect.
#25
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Originally Posted by Beast96Z
I'm sure it does. You did gain more power than a stock cam, but your still not pushing what you could down low. I'm sure you saw the graph above. A little more power, but not much of nothing compared to a traditional split cam. Look at this graph comparing the TR224, the TR 227/224, and the TR 230/224. All of the graphs are the same until 5k or so. There's no reason not to gain low-end power when swapping cams. The reverse cams just hender the exaust to a point to where they can't move enough air, thus not making any more power that it's smaller counter parts.
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Ok, if you don't give up any bottom end, pull pull more in high rpms, how is that a bad thing??? i will put together a little comparison b/w my stockish dyno and cam only dyno, give me some time...
You pick the right reverse split cam, and it'll make you happy....
You pick the right reverse split cam, and it'll make you happy....
#30
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Originally Posted by 02ls1ta
but the car with the tr224 cam also has heads the bigger camed cars are cam only..... if i can do it with cam only thats what i would do
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#32
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Originally Posted by orangeapeel
I will post my graph soon, and then you can find out that the big duration is gonna hurt down low, and will make power past what I want to spin the bottom end.
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#33
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[QUOTE=txhorns281]
Red = Borla, free mods, lid
Blue = Full bolt on
Black = TR230 on w/ 853s
All were tuned pulls, all were SAE #s, all were previous dynos of mine
Were the 853's not on the previous combos? Any advantage to them?
Red = Borla, free mods, lid
Blue = Full bolt on
Black = TR230 on w/ 853s
All were tuned pulls, all were SAE #s, all were previous dynos of mine
Were the 853's not on the previous combos? Any advantage to them?
#34
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[QUOTE=krexken]
Red = Borla, free mods, lid
Blue = Full bolt on
Black = TR230 on w/ 853s
All were tuned pulls, all were SAE #s, all were previous dynos of mine
Were the 853's not on the previous combos? Any advantage to them? ??? Still a stock headed car, that was the point of mentioning the 853s
Originally Posted by txhorns281
Red = Borla, free mods, lid
Blue = Full bolt on
Black = TR230 on w/ 853s
All were tuned pulls, all were SAE #s, all were previous dynos of mine
Were the 853's not on the previous combos? Any advantage to them?
#35
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my friend has a custom grind i believe TSP did it and I also believe it was on XER lobes, its a 232/228 573/571 113, he never had it dynoed but it ran 11.2@120. I now have this cam sitting in my closet waiting to go in. To me its not about dyno #s its the e.t
Love the reverse split!
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#36
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Originally Posted by BrianC98Z28
my friend has a custom grind i believe TSP did it and I also believe it was on XER lobes, its a 232/228 573/571 113, he never had it dynoed but it ran 11.2@120. I now have this cam sitting in my closet waiting to go in. To me its not about dyno #s its the e.t
Love the reverse split!
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