New Metal' CAT converter - with dyno results
12-26-2005, 11:17 PM
#1
New Metal' CAT converter - with dyno results
I just put together another CAT converter over the holiday weekend. This is a full stainless polished, 200 cell metal substrate CAT converter with heat shield, which claimed to be only 10% flow loss and EPA/CARB compliant. The sizing of the CAT was selected to match up with most aftermartet exhaust systems, as most systems have a 2.25 ID inlet piping. Currently, it's connected to my stock exhaust and seems to work fine (but too damn quiet!). I'm still waiting on my replacement exhaust before taking it to the dyno for some numbers. Here are some pics...
Pre-assembled setup: Pre-positioning everything before welding them together.
TIG weld of the front flange and O2 bung
Finished product
Pre-assembled setup: Pre-positioning everything before welding them together.
TIG weld of the front flange and O2 bung
Finished product
12-27-2005, 02:39 AM
#2
Racer
Join Date: Apr 2005
Location: Houston, TEXAS
Age: 48
Posts: 295
Likes: 0
Received 0 Likes
on
0 Posts
nice work JT. I thought you had the random tech cat though after tossing the magnaflow? Man you have too many mods to keep track of. Always tasteful though. Cant wait to see the dyno results on this one, although I already have the R/T cat myself, just havent had time to put it on.
Man I wish someone would come out with a heatshield to cover our aftermarket cats. Just so things wouldnt be so obvious to an inspection or dealer.
Man I wish someone would come out with a heatshield to cover our aftermarket cats. Just so things wouldnt be so obvious to an inspection or dealer.
12-27-2005, 04:19 AM
#4
Matell
Join Date: Feb 2004
Location: Brisbane, Australia
Age: 45
Posts: 199
Likes: 0
Received 0 Likes
on
0 Posts
That's an awesome job you've done there JT. Both myself and one other CL9 guy here in Aus were looking into having a Metal'Cat fabricated to be a 'plug and play'/bolt-in application but never got around to it for a number of reasons (1 cost of Metal'Cat, 2 playing the gamble of finding an exhaust shop with both the skills and interest in doing the job at a reasonable price and quality befitting of the Cat in the first place). Hence I jumped on the RT bandwagon (till to install also)...but what you've got there is what I'd ideally like!
Now if only you could use those marvellous fabricating skills of yours (provided you could find the time) to share that rather attractive cat with the rest of the CL9 community who're prepared to be upfront with money
. J/K.....Thats what custom exhaust shops are for!
Metal'Cat's are very popular with the WRX crowd, so I'll be eager to see what the results of your next dyno are.
Now if only you could use those marvellous fabricating skills of yours (provided you could find the time) to share that rather attractive cat with the rest of the CL9 community who're prepared to be upfront with money
. J/K.....Thats what custom exhaust shops are for!Metal'Cat's are very popular with the WRX crowd, so I'll be eager to see what the results of your next dyno are.
12-27-2005, 08:33 AM
#5
Suzuka Master
Join Date: Jul 2003
Location: Cincinnati, OH
Age: 49
Posts: 7,594
Likes: 0
Received 4 Likes
on
3 Posts
Originally Posted by JTso
I just put together another CAT converter over the holiday weekend. This is a full stainless polished, 200 cell metal substrate CAT converter with heat shield, which claimed to be only 10% flow loss and EPA/CARB compliant. The sizing of the CAT was selected to match up with most aftermartet exhaust systems, as most systems have a 2.25 ID inlet piping. Currently, it's connected to my stock exhaust and seems to work fine (but too damn quiet!). I'm still waiting on my replacement exhaust before taking it to the dyno for some numbers.
Trending Topics
12-27-2005, 10:39 AM
#8
iVTEC no koe
Join Date: Jul 2005
Location: Ontario
Age: 44
Posts: 1,057
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by JTso
I ordered the Tanabe Medalion Touring but it won't be available until mid Jan 2006.
12-27-2005, 10:46 AM
#9
Originally Posted by Matell
That's an awesome job you've done there JT. Both myself and one other CL9 guy here in Aus were looking into having a Metal'Cat fabricated to be a 'plug and play'/bolt-in application but never got around to it for a number of reasons (1 cost of Metal'Cat, 2 playing the gamble of finding an exhaust shop with both the skills and interest in doing the job at a reasonable price and quality befitting of the Cat in the first place). Hence I jumped on the RT bandwagon (till to install also)...but what you've got there is what I'd ideally like!
Now if only you could use those marvellous fabricating skills of yours (provided you could find the time) to share that rather attractive cat with the rest of the CL9 community who're prepared to be upfront with money. J/K.....Thats what custom exhaust shops are for!
Metal'Cat's are very popular with the WRX crowd, so I'll be eager to see what the results of your next dyno are.
Now if only you could use those marvellous fabricating skills of yours (provided you could find the time) to share that rather attractive cat with the rest of the CL9 community who're prepared to be upfront with money
. J/K.....Thats what custom exhaust shops are for!Metal'Cat's are very popular with the WRX crowd, so I'll be eager to see what the results of your next dyno are.
), I probably could crank out a few CATs.
12-27-2005, 01:25 PM
#11
Rep'n Taxbrain.com
Join Date: Aug 2004
Location: N. Cali-forn-i-a
Age: 44
Posts: 7,075
Likes: 0
Received 3 Likes
on
3 Posts
Great looking piece there Johnny
Is the Random tech cat a 300 cell metal substrate CAT converter?
Does a lower cell metal substrate result in more air flow?
Is the Random tech cat a 300 cell metal substrate CAT converter?
Does a lower cell metal substrate result in more air flow?
12-27-2005, 03:56 PM
#12
Originally Posted by Tsx536
Great looking piece there Johnny
Is the Random tech cat a 300 cell metal substrate CAT converter?
Does a lower cell metal substrate result in more air flow?
Is the Random tech cat a 300 cell metal substrate CAT converter?
Does a lower cell metal substrate result in more air flow?
12-27-2005, 04:45 PM
#13
Moderator
Regional Coordinator (Southeast)
Regional Coordinator (Southeast)
Join Date: Dec 2003
Location: Mooresville, NC
Age: 38
Posts: 43,640
Received 3,860 Likes
on
2,580 Posts
Very nice work man cant wait to see the dyno. If it is good enough dan better start making flanges.
12-29-2005, 09:44 AM
#17
Drives With Hands
This is going to match the new A-pipe, correct? I'm wondering if an increase in pipe size on a NA engine is going to negatively impact exhaust scavenging at lower RPMs.
12-29-2005, 10:48 AM
#18
Originally Posted by rmpage
This is going to match the new A-pipe, correct? I'm wondering if an increase in pipe size on a NA engine is going to negatively impact exhaust scavenging at lower RPMs.
Just for comparison.... My observation of the RTC during a recent install for a local member is that it has a 2.25" OD inlet with a 2.10" ID. The outlet is 2.0" OD with a 1.88" ID.
12-29-2005, 01:07 PM
#19
T.DoT P.I.M.P. lol
Join Date: Dec 2005
Location: Toronto, Canada
Age: 41
Posts: 1,575
Likes: 0
Received 1 Like
on
1 Post
Hey JTso~
Did U make the CAT yourself? I'm recently in the market to purchase a CAT, considering the Magnaflow and RT Cat now. Which one will you recommend? and how much is yours?
Did U make the CAT yourself? I'm recently in the market to purchase a CAT, considering the Magnaflow and RT Cat now. Which one will you recommend? and how much is yours?
12-29-2005, 04:28 PM
#22
Instructor
Join Date: Sep 2005
Posts: 147
Likes: 0
Received 0 Likes
on
0 Posts
I just found some info on that cat as an FYI...
___________________________
Taken from a sellers site:
*Superior forward flow (CFM): 534:81 for metal'Cat™ versus 312.17 for the competition*
*Only 11" long—great for small and mid-size cars
*Unique 200-cell-per-square-inch high-flow full metal catalyst
Flowbench measurement of Metal'Cat&3153; with 3" inlet/outlet against a popular performance brand.
____________________________
As an FYI, the 3" RT Metallic is 10.5" and flows 598 cfm @ 28" of pressure.
___________________________
Taken from a sellers site:
*Superior forward flow (CFM): 534:81 for metal'Cat™ versus 312.17 for the competition*
*Only 11" long—great for small and mid-size cars
*Unique 200-cell-per-square-inch high-flow full metal catalyst
Flowbench measurement of Metal'Cat&3153; with 3" inlet/outlet against a popular performance brand.
____________________________
As an FYI, the 3" RT Metallic is 10.5" and flows 598 cfm @ 28" of pressure.
12-29-2005, 04:39 PM
#23
Originally Posted by chuson
Hey JTso~
Did U make the CAT yourself? I'm recently in the market to purchase a CAT, considering the Magnaflow and RT Cat now. Which one will you recommend? and how much is yours?
Did U make the CAT yourself? I'm recently in the market to purchase a CAT, considering the Magnaflow and RT Cat now. Which one will you recommend? and how much is yours?
Originally Posted by Dezod
Nice looking cat. What type pricing is that selling at?
12-31-2005, 01:01 AM
#27
Burning Brakes
Join Date: Sep 2004
Location: Queensland, Australia
Age: 37
Posts: 991
Likes: 0
Received 0 Likes
on
0 Posts
nice one JTso - i was seriously considering getting a metal-cat aswell, but decided to go with the OEM metal cat of the Cl7 to solve fabrication issues etc (the maxum works header has different dimensions to stock and i don't trust many local exhaust shops to make it to the right size without having the header first).
The specs of the metal cat seem really good and i'd say your setup may offer similar if not better gains to the RT cat. I'd be interested to know how the OEM metal cat compares flow wise.
The specs of the metal cat seem really good and i'd say your setup may offer similar if not better gains to the RT cat. I'd be interested to know how the OEM metal cat compares flow wise.
01-05-2006, 11:53 AM
#29
Rep'n Taxbrain.com
Join Date: Aug 2004
Location: N. Cali-forn-i-a
Age: 44
Posts: 7,075
Likes: 0
Received 3 Likes
on
3 Posts
Originally Posted by JTso
I do have another CAT for sale in the BM forum.
https://acurazine.com/forums/showthread.php?t=328451
https://acurazine.com/forums/showthread.php?t=328451
01-13-2006, 09:25 AM
#30
Troutslap Mod-DUH-rator
Join Date: Nov 2003
Posts: 8,018
Likes: 0
Received 0 Likes
on
0 Posts
random technology reviews from anyone?
well, a few weeks ago the random tech cat thread was a hot topic.
how does everyone like their cat?
my impression is still the same, the gains were impressive, and you can def tell on the high end.
the engine note is great!!!
i'm just curious, that's all :troutslap
how does everyone like their cat?
my impression is still the same, the gains were impressive, and you can def tell on the high end.
the engine note is great!!!
i'm just curious, that's all :troutslap
02-20-2006, 03:43 PM
#31
Metal' CAT dyno results
I just got back from the dyno and here are some numbers.
Last dyno:
300 cell cat with Tanabe SMH
New dyno:
200 cell Metal' cat with Tanabe MT
Since the design and piping of the two exhaust are pretty much the same, the numbers are mostly from the cat converter.
Note: ignore the torque spike from the last dyno. The torque should only be around 162 instead of 170. Today's numbers indicate a slight drop before 3200 rpm but gains everywhere else.
SAE corrected:
Uncorrected: This is the actual hp and tq to the wheel without factor in air temp and other variables. Today is relatively cold at approx. 43 degrees F. Cold air does help with performance. If using the standard 15% loss to the wheel calculation, which means the engine produced 244 hp and 208 tq to the crank.
This is just
Last dyno:
300 cell cat with Tanabe SMH
New dyno:
200 cell Metal' cat with Tanabe MT
Since the design and piping of the two exhaust are pretty much the same, the numbers are mostly from the cat converter.
Note: ignore the torque spike from the last dyno. The torque should only be around 162 instead of 170. Today's numbers indicate a slight drop before 3200 rpm but gains everywhere else.
SAE corrected:
Uncorrected: This is the actual hp and tq to the wheel without factor in air temp and other variables. Today is relatively cold at approx. 43 degrees F. Cold air does help with performance. If using the standard 15% loss to the wheel calculation, which means the engine produced 244 hp and 208 tq to the crank.
This is just
02-20-2006, 04:44 PM
#33
Moderator
Regional Coordinator (Southeast)
Regional Coordinator (Southeast)
Join Date: Dec 2003
Location: Mooresville, NC
Age: 38
Posts: 43,640
Received 3,860 Likes
on
2,580 Posts
so how much will you be selling these for
02-21-2006, 02:11 AM
#39
Master Graphic Artist
Join Date: Oct 2004
Location: Northbrook, IL
Age: 40
Posts: 2,859
Received 0 Likes
on
0 Posts
Nice work I can only imagine what would happen with your figures if you found a way to set up FI. You planning on going FI in the future? Or are you purely NA?
I can only imagine what would happen with your figures if you found a way to set up FI. You planning on going FI in the future? Or are you purely NA?
