Can we discuss differences in the TR220 and TR224?????
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TECH Apprentice
Joined: Jan 2002
Posts: 343
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From: san diego
Can we discuss differences in the TR220 and TR224????? Well I am trying to decide which one to get. I want the 224 but I am affraid that is borderline smog legalness will not cut it and I would be screwed.
What are the power differences, 1/4 mile times, and all around drivability of each one??
Also how is the exhaust note on each of them does the 220 lope??
I've heard there is only like a 5hp difference between the 2 and if that is the case I'll just take the 224. Thanks, all opinions are appreciated.
What are the power differences, 1/4 mile times, and all around drivability of each one??
Also how is the exhaust note on each of them does the 220 lope??
I've heard there is only like a 5hp difference between the 2 and if that is the case I'll just take the 224. Thanks, all opinions are appreciated.
TECH Apprentice
Joined: Nov 2001
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From: cookeville, tn
Re: Can we discuss differences in the TR220 and TR224????? Your last statement doesn't really make sense. if theres only 5 horsepower difference between then why go with the larger one if you concerend about emission testing??
I'm excempt from emission testing but if i was worried the least I'd go with something I knew would pass just so I wouldn't have to asorb the cost of doing it twice.
But the 224 will make a little more power. Not tons more but it will a little.
I'm excempt from emission testing but if i was worried the least I'd go with something I knew would pass just so I wouldn't have to asorb the cost of doing it twice.
But the 224 will make a little more power. Not tons more but it will a little.
Thread Starter
TECH Apprentice
Joined: Jan 2002
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From: san diego
Re: Can we discuss differences in the TR220 and TR224????? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by msce2b-dustin:
<strong>Your last statement doesn't really make sense. if theres only 5 horsepower difference between then why go with the larger one if you concerend about emission testing??
I'm excempt from emission testing but if i was worried the least I'd go with something I knew would pass just so I wouldn't have to asorb the cost of doing it twice.
But the 224 will make a little more power. Not tons more but it will a little.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I wanted to know if the extra power would be worth the hassle of having to tune it right to get it smogged.
<strong>Your last statement doesn't really make sense. if theres only 5 horsepower difference between then why go with the larger one if you concerend about emission testing??
I'm excempt from emission testing but if i was worried the least I'd go with something I knew would pass just so I wouldn't have to asorb the cost of doing it twice.
But the 224 will make a little more power. Not tons more but it will a little.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I wanted to know if the extra power would be worth the hassle of having to tune it right to get it smogged.
Re: Can we discuss differences in the TR220 and TR224????? If the car will see mainly street duty and needs to pass the sniffer test and/or OBDII computer scanning emissions test, I think the TR220 would be easier work with. Also for driving on the street the TR220 would probably be more fun.
Many M6's with 224 duration cams require reaching for 5th instead of 6th unless your going 75-80mph on the Interstate, unless you change the rear gear to a more friendly 3.73 or 4.10, due to the loss of lower end torque. I don't know how the TR220 would do without tuning, but it would probably be ok with a drilled TB. For best shot at passing emissions, tuning would probably help.
If your car is an A4, you'll probably require tuning to get the 224 idle up and pass emissions. I think the 220 would very likely require tuning too.
The TR224 on a 114 LSA would come closer to passing emissions than the TR224 on 112 LSA all other things being equal, but the 114 LSA would move the power band up.
Personally, for 5-10hp more, less bottom end torque, more potential emissions issues, more potential to need programming, I'd pass on the TR224 and get the TR 220.
If someone has already been thru getting the TR224 to pass and can show it's not that bad to get thru emissions, then I might reconsider.
Many M6's with 224 duration cams require reaching for 5th instead of 6th unless your going 75-80mph on the Interstate, unless you change the rear gear to a more friendly 3.73 or 4.10, due to the loss of lower end torque. I don't know how the TR220 would do without tuning, but it would probably be ok with a drilled TB. For best shot at passing emissions, tuning would probably help.
If your car is an A4, you'll probably require tuning to get the 224 idle up and pass emissions. I think the 220 would very likely require tuning too.
The TR224 on a 114 LSA would come closer to passing emissions than the TR224 on 112 LSA all other things being equal, but the 114 LSA would move the power band up.
Personally, for 5-10hp more, less bottom end torque, more potential emissions issues, more potential to need programming, I'd pass on the TR224 and get the TR 220.
If someone has already been thru getting the TR224 to pass and can show it's not that bad to get thru emissions, then I might reconsider.
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Re: Can we discuss differences in the TR220 and TR224????? Interesting. Where's the torque curve come on with the 220 vs 224? I can live with 10 less horsepower. Where do you have to shift the 220? I can live without raising the limiter if I don't have to. I autox, and more low end grunt , stock tuning and passing emmissions ( daily driver ) would be great.
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Staging Lane
Joined: May 2002
Posts: 81
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From: Grand Rapids, Michigan
Re: Can we discuss differences in the TR220 and TR224????? <wishful thinking>It would be great if someone had dynos of the same car with all other mods the same, with each of these cams, and started the dyno at 1000 rpm. Then we'd see exactly what the difference in power is, at any rpm.</wishful thinking>
Re: Can we discuss differences in the TR220 and TR224????? I talked to TR last week as I am going to get a cam from them this week. They told mt to go with the 224/224 114. That it would pass emissions and give me a good bit of power. I'm going with the 224/224 112 because I want the harsh idle (I like to set off alarms <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> ).
Staging Lane
Joined: Jul 2002
Posts: 74
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From: Fullerton, CA
Re: Can we discuss differences in the TR220 and TR224????? I just went through all this. In CA, you want the 220 114 lsa. Compared to the 224, it gives up about 5 hp up top but has about 5 more hp down low. The 220 will definately pass smog but the 224 is pretty close.
Re: Can we discuss differences in the TR220 and TR224????? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by 2001CamaroGuy:
<strong>I talked to TR last week as I am going to get a cam from them this week. They told mt to go with the 224/224 114. That it would pass emissions and give me a good bit of power. I'm going with the 224/224 112 because I want the harsh idle (I like to set off alarms <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> ).</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You're going with a 224/224 112LSA and expect to pass smog? Good Luck!
Unless AZ is alot easier than here in CA you better try to go with at least the 114LSA if you ever intend to pass a sniffer.
A good rule of thumb for satisfying the smog ***** here in CA: Try to keep the intake and exhaust durations at or under 221/221 and the LSA at or over 114. 224/224 is pushing it but I have heard rumors of people squeaking by, but it is a gamble and will likely require programming if it really is possible at all.
I've got a B1 and a few other goodies sitting in my garage right now that will be going in very soon. I am very confident that I will not have smogging problems. I thought about that TR224 but I also like sleeping at night knowing I have nothing to worry about. We can always build additional power through other methods here <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> .
<strong>I talked to TR last week as I am going to get a cam from them this week. They told mt to go with the 224/224 114. That it would pass emissions and give me a good bit of power. I'm going with the 224/224 112 because I want the harsh idle (I like to set off alarms <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> ).</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">You're going with a 224/224 112LSA and expect to pass smog? Good Luck!
Unless AZ is alot easier than here in CA you better try to go with at least the 114LSA if you ever intend to pass a sniffer.
A good rule of thumb for satisfying the smog ***** here in CA: Try to keep the intake and exhaust durations at or under 221/221 and the LSA at or over 114. 224/224 is pushing it but I have heard rumors of people squeaking by, but it is a gamble and will likely require programming if it really is possible at all.
I've got a B1 and a few other goodies sitting in my garage right now that will be going in very soon. I am very confident that I will not have smogging problems. I thought about that TR224 but I also like sleeping at night knowing I have nothing to worry about. We can always build additional power through other methods here <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> .
Re: Can we discuss differences in the TR220 and TR224????? The TR224 will pass smog in Cali. You might need to lean it out a little bit and get the cats really hot before you go. Go with the TR 224 on a 114LSA and you will not be sorry. I have it and love it. And 10 horsepower between the 220 and the 224 prove it because i do not belive it.
TECH Senior Member
Joined: Nov 2001
Posts: 10,341
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Re: Can we discuss differences in the TR220 and TR224????? TR 224 on 114LSA will pass no problem. Raise your idle slightly and get the cats good and hot and your done <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Cheers,
Chris
Cheers,
Chris
