Drivetrain selecting a high flow CAT
is in force per area. The notion of 28 lbs just isn't a unit that makes sense. I think the 28" water is a better number..... While this is a rather arcane unit, it is pressure. This would be the pressure you have to use to push a column of water 28" up.
What I did was take 400, and scaled down the quoted number from what was listed in one of posts, and came up with 20.
To find flow. Take the displacement of the motor, times red-line, divinde by 2 (for four stroke motors), and multily by the volumetric efficiency. So 1.6 litres times 7000 RPM, diveded by 2, times about 2 for ~15 psi boost at red-line. Do the math, and you come up with ~400 CFM (you have to convert from liters to cubic feet as well). This is rough, but ball-park.
Matt
What I did was take 400, and scaled down the quoted number from what was listed in one of posts, and came up with 20.
To find flow. Take the displacement of the motor, times red-line, divinde by 2 (for four stroke motors), and multily by the volumetric efficiency. So 1.6 litres times 7000 RPM, diveded by 2, times about 2 for ~15 psi boost at red-line. Do the math, and you come up with ~400 CFM (you have to convert from liters to cubic feet as well). This is rough, but ball-park.
Matt
If all the 02 were burned with hydrogen...
you'd end up with ~440 CFM of flow out the exhaust, if it were burning coal it would be closer to ~400 CFM, but that's not really hear or there. These aren't "hard numbers" where if you're below it's OK, or above and it's not, it just means that you move through that pressure drop as you go through that flow number. So you'd get a bit lower pressure drop than the RT guys quoted.
If one calls RT again, then one should not only say what the displacement of our engine is, but that it runs A/Fs ~10:1 under full boost, with a red-line of 7000 RPM or so. See if they reccomend a different model, or if the A/F ratios indicate that there are some special requiremnets on the cat core. I really have no clue here, but these are the relevant issues.
Matt
If one calls RT again, then one should not only say what the displacement of our engine is, but that it runs A/Fs ~10:1 under full boost, with a red-line of 7000 RPM or so. See if they reccomend a different model, or if the A/F ratios indicate that there are some special requiremnets on the cat core. I really have no clue here, but these are the relevant issues.
Matt
you'd end up with ~440 CFM of flow out the exhaust, if it were burning coal it would be closer to ~400 CFM, but that's not really hear or there. These aren't "hard numbers" where if you're below it's OK, or above and it's not, it just means that you move through that pressure drop as you go through that flow number. So you'd get a bit lower pressure drop than the RT guys quoted.
If one calls RT again, then one should not only say what the displacement of our engine is, but that it runs A/Fs ~10:1 under full boost, with a red-line of 7000 RPM or so. See if they reccomend a different model, or if the A/F ratios indicate that there are some special requiremnets on the cat core. I really have no clue here, but these are the relevant issues.
Matt
If one calls RT again, then one should not only say what the displacement of our engine is, but that it runs A/Fs ~10:1 under full boost, with a red-line of 7000 RPM or so. See if they reccomend a different model, or if the A/F ratios indicate that there are some special requiremnets on the cat core. I really have no clue here, but these are the relevant issues.
Matt
MMMMMmmmmm ..
.. who could I think of that would be a good person to talk w/ RT MMMMmmmm I'm thinking ..
sly:.. lets take a different approach who is not the right person to ask the right questions or supply the right data, thats easy BAHAMABART 
.Anyone come to mind MATT ?
Nope. No clue who you could be thinking of...
MMMMMmmmmm .... who could I think of that would be a good person to talk w/ RT MMMMmmmm I'm thinking ..sly:.. lets take a different approach who is not the right person to ask the right questions or supply the right data, thats easy BAHAMABART .
Anyone come to mind MATT ?
.. who could I think of that would be a good person to talk w/ RT MMMMmmmm I'm thinking ..sly:.. lets take a different approach who is not the right person to ask the right questions or supply the right data, thats easy BAHAMABART .Anyone come to mind MATT ?
Matt
I'm just thinking out loud but a really smart car person might turn this into a MC2 articule. It pretty apparent via this thread that we don't know JACK when it comes to cats (as opposed to kitties which many here are well versed on).
PS - I proabably would leave the kitty talk out of MC2
PS - I proabably would leave the kitty talk out of MC2
4th Gear
Joined: Jun 2006
Posts: 585
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From: Somewhere that no longer exists
inches, yeah, deffinetly inches....
this is why old cars are fun, NO CATS REQUIRED!!! and oh the smell, oh i love it. I got my other car to run again finally, and then found my new clutch linkage broke. The next day i jerryrigged my clutch so i could shift, and the car wouldnt start again! But other than that they are fun, haha, but my garage does smell oh so good now
Beecher
this is why old cars are fun, NO CATS REQUIRED!!! and oh the smell, oh i love it. I got my other car to run again finally, and then found my new clutch linkage broke. The next day i jerryrigged my clutch so i could shift, and the car wouldnt start again! But other than that they are fun, haha, but my garage does smell oh so good now
Beecher
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