To reverse split or not?
09-18-2008, 11:00 PM
#1
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To reverse split or not? Thinking about getting a TR230/224 111
I want a cam that has....
Great lower and midrange power while still being able to scream up top
Ground shaking Idle
Still streetable as I plan on driving the car quite abit
M6 car
Mods in sig
Everyone please chime in.
I want a cam that has....
Great lower and midrange power while still being able to scream up top
Ground shaking Idle
Still streetable as I plan on driving the car quite abit
M6 car
Mods in sig
Everyone please chime in.
09-19-2008, 10:54 AM
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This cam doesn't sound to bad for what you are asking for, but the lsa should be wider to make better use of your rpm range and broaden out the torque curve since this is a DD not mainly a track car. Without gears a you will not be happy with a bigger cam or keep it very streetable. One question I have is do you have to deal with emissions? A tight lsa increases overlap which causes a lot of reversion in the intake and will not pass the siniffer, but this also depends upon where you live. Also what is the lift of this cam, might want to keep in mind piston to valve clearence if it is a high lift or if you want to up the rocker ratio.
09-19-2008, 10:57 AM
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There is some good reading in here, but most of the cams are bigger than what you asked about.
https://ls1tech.com/forums/generation-iii-internal-engine/982895-ls1-camshaft-engine-dyno-comparision.html
https://ls1tech.com/forums/generation-iii-internal-engine/982895-ls1-camshaft-engine-dyno-comparision.html
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09-19-2008, 12:00 PM
#9
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A tighter lsa will give you a narrow quick peak torque and a wide lsa will spead the torque out across a broad rpm range, which is what is preferred for the street.
09-19-2008, 12:04 PM
#11
I have the TR230 and I believe it'll do everything you want. I'm very happy with mine. It has a very lopey idle, pulls hard through the midrange and topend, and works very well for a DD. I've never heard anyone who's had one say anything but great things about it. Many claim it's one of the best street cams available. Times in sig were partial tune, full weight and 3/4's tank of gas.
09-19-2008, 12:06 PM
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I have the TR230 and I believe it'll do everything you want. I'm very happy with mine. It has a very lopey idle, pulls hard through the midrange and topend, and works very well for a DD. I've never heard anyone who's had one say anything but great things about it. Many claim it's one of the best street cams available. Times in sig were partial tune, full weight and 3/4's tank of gas.
one is a 230/224 111
the other a 230/236 112
09-19-2008, 12:12 PM
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The torque you end up with is only what the motor will output, meaning if you manage 380 lb/ft of tq it would be in a narrow window of the rpm range. Lobe separation is the number of degrees that separate the peak lift points of the cam’s intake and exhaust lobe. Like duration, lobe separation helps determine the cam’s rpm range. Generally, a cam with wider lobe separation (112-116 degrees) will make power over a wider rpm band. A cam with narrow lobe separation (under 112 degrees) is biased toward peak power and operates within a narrower rpm band.For the street, you want a cam with a fairly wide lobe separation for the best power production over the engine’s entire rpm range. Go too narrow with lobe separation and you may end up with an engine with a peaky powerband biased to high rpm horsepower—not the hot ticket for a street car.
09-19-2008, 12:19 PM
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The torque you end up with is only what the motor will output, meaning if you manage 380 lb/ft of tq it would be in a narrow window of the rpm range. Lobe separation is the number of degrees that separate the peak lift points of the cam’s intake and exhaust lobe. Like duration, lobe separation helps determine the cam’s rpm range. Generally, a cam with wider lobe separation (112-116 degrees) will make power over a wider rpm band. A cam with narrow lobe separation (under 112 degrees) is biased toward peak power and operates within a narrower rpm band.For the street, you want a cam with a fairly wide lobe separation for the best power production over the engine’s entire rpm range. Go too narrow with lobe separation and you may end up with an engine with a peaky powerband biased to high rpm horsepower—not the hot ticket for a street car.
09-19-2008, 12:22 PM
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The reverse split is really for motors with less then optimal intake side and better free flowing exhaust. (ie stock intake and heads with headers and free flowing exhaust) If you are planning or already have good heads and intake, forget the reverse. A cam swap is a good time for head swapping also.
09-19-2008, 12:27 PM
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The torque you end up with is only what the motor will output, meaning if you manage 380 lb/ft of tq it would be in a narrow window of the rpm range. Lobe separation is the number of degrees that separate the peak lift points of the cam’s intake and exhaust lobe. Like duration, lobe separation helps determine the cam’s rpm range. Generally, a cam with wider lobe separation (112-116 degrees) will make power over a wider rpm band. A cam with narrow lobe separation (under 112 degrees) is biased toward peak power and operates within a narrower rpm band.For the street, you want a cam with a fairly wide lobe separation for the best power production over the engine’s entire rpm range. Go too narrow with lobe separation and you may end up with an engine with a peaky powerband biased to high rpm horsepower—not the hot ticket for a street car.
09-19-2008, 12:33 PM
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The reverse split is really for motors with less then optimal intake side and better free flowing exhaust. (ie stock intake and heads with headers and free flowing exhaust) If you are planning or already have good heads and intake, forget the reverse. A cam swap is a good time for head swapping also.
09-19-2008, 02:13 PM
#18
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If you are planning or already have good heads and intake, forget the reverse. A cam swap is a good time for head swapping also.
TR230/224 is a good street cam for poeple not wanting to rev to the moon, 6300 rpm shifts. It has great VEs for cam only applications on stock headed motors.
09-19-2008, 02:46 PM
#20
