CFM Dyno Test: SVT Stock Cat vs. Offroad Pipe vs. High Flow Cat

[CFM Focus]

Originally Posted by Fordson

Looks like in addition to the intake, that SVT had somebody or other's tune on it, judging from the overall profile and bump at 5K (as opposed to the hole at that speed with a regular SVT factory tune) - true? Can you confirm?

Yes, it has standard SCT tune.

[CFM Focus]

Originally Posted by 02_SVT_Focus

i forgot they mentioned a protoype induction system as well. CAI, SRI. Header?? That would also help those big numbers between 2.5k and 4k. Whats the prototype of, and have you dynoed it agains stock parts?

All runs had the same parts/tuning. We're not selling peak numbers here.

[Fordson]

Okay, so prototype SRI and standard SCT tune - that's our baseline for all runs.

Interesting...

[CFM Focus]

PEAK numbers on a dyno graph don't mean squat!!! Anything less than 2hp difference could be attributed to several other variables.

Why?

1. Level of smoothing on dyno graph will change PEAK numbers.
2. PEAK numbers are only good for all out racing.
3. 1-2hp PEAK gains are NOTHING compared to 5+ midrange gains
4. A curve with a high PEAK point with a range of a couple hundred RPM is WORTHLESS.

[02_SVT_Focus]

I hope that is not directed at me CFM lol. I like the gains i saw from 2.5-4000. Might even buy one.

I dont like peak numbers anyways, means i am burning too much gas. Doh!

[CFM Focus]

Originally Posted by 02_SVT_Focus

I hope that is not directed at me CFM lol. I like the gains i saw from 2.5-4000. Might even buy one.

I dont like peak numbers anyways, means i am burning too much gas. Doh!

No, it is a general statement for those that judge parts/dynos by their peak numbers!

[CFM Focus]

Our next test is radiant heat between our cat pipe which has a heat shield and plenty of clearance from oil pan and the RT cat which does not have a heat shield and sits very close to the pan.

[OrangeSVT03]

Originally Posted by CFM Focus

PEAK numbers on a dyno graph don't mean squat!!! Anything less than 2hp difference could be attributed to several other variables.

Why?

1. Level of smoothing on dyno graph will change PEAK numbers.
2. PEAK numbers are only good for all out racing.
3. 1-2hp PEAK gains are NOTHING compared to 5+ midrange gains
4. A curve with a high PEAK point with a range of a couple hundred RPM is WORTHLESS.

You're fighting a loosing battle there...... NO matter how true your statement is

Try telling this to the guys that believe UDP's are the greatest bolt on ever

[CFM Focus]

Originally Posted by OrangeSVT03

You're fighting a loosing battle there...... NO matter how true your statement is

Try telling this to the guys that believe UDP's are the greatest bolt on ever

You're right! It is like when someone asks us for advice and then they end up doing the complete opposite in the end. Oh well... We will continue making them and those who want one will know where to come and get it.

[Spatakula]

right on. yeeesh there are way to many things i want and not enough money!!!

-spatakula

[02_SVT_Focus]

If you need a test car for NJ state inspections...let me know!

[blucarz]

So did you ship mine yet??.....

[SVTADAM]

Dont forget...you are catering to the SVT crowd here. These cars are on such a higher level than any other US focus.
You are doing great work CFM. I cant wait to see more toys from you guys.

[Yel900rr]

Originally Posted by CFM Focus

Our next test is radiant heat between our cat pipe which has a heat shield and plenty of clearance from oil pan and the RT cat which does not have a heat shield and sits very close to the pan.

How about a clearance test to see which one scrapes the speed bump first. RT quality and unmatched performance is what sells it and you spent the xtra money on an SVT don't cut corners on your mods. You get what you pay for.

[cfmfocus2]

Originally Posted by Yel900rr

How about a clearance test to see which one scrapes the speed bump first. RT quality and unmatched performance is what sells it and you spent the xtra money on an SVT don't cut corners on your mods. You get what you pay for.

The CFM High Flow cat pipe during our testing did not have any problems with scraping.

The CFM High Flow cat pipe is a high Quality piece. There is more clearance between the catalytic converter and oil pan with the CFM unit.

There has been some issues were the RT unit is very close to the oil pan or in a very few cases it actually hits the oil pan.


Here is what the CFM unit offers over the RT unit.

- Instructions
- Hardware
- Heat shield
- Lower price.
- Oil pan clearance.

[02_SVT_Focus]

Sounds super!

[COSVT03]

Just a little FYI-when I installed my RT Tech I **HAD** 1/2 inch of clearance- Over 20k miles I now have *1/16* of an inch. So don't worry about it just yet-it's brand new-time will tell.

[CFM Focus]

Originally Posted by Yel900rr

How about a clearance test to see which one scrapes the speed bump first. RT quality and unmatched performance is what sells it and you spent the xtra money on an SVT don't cut corners on your mods. You get what you pay for.

Neither one will because they both sit back towards the tire which makes a huge difference for ground clearance. The header will always scrape first! Nice try though.

[Reza]

to CFM for stepping up with focus svt aftermarket.

[CFM Focus]

Thanks to everyone for your support! It is necessary and greatly appreciated!

[roadrocket]

Price is nice, but you get what you pay for. I bought the Random Tech cat from McNews and it's great. Workmanship is first class, performance is great, and it's all stainless. The CFM converter is pieced together and it looks like the welding was done in a high school shop class. If I was interested in cheap, I would have bought a standard Focus, or a used Honda, not an SVT. I assume other SVT owners are as proud of their cars as I am of mine and I suggest you think about that before you spend your money.

[kennym04]

Looks like a great part, but is it intended for off road use or will it qualify for the C.A.R.B. EO number? i'm assuming it won't pass smog considering replacing the cat is legal only in a few instances. Things here in California are pretty tight as far as passing smog emissions...

[CFM Focus]

Originally Posted by roadrocket

The CFM converter is pieced together and it looks like the welding was done in a high school shop class.

Pieced together? Since when is the RT one piece? Where in the pics did you see high school shop class
welds???

BTW, we will guarantee the "high school shop class welds"

[CFM Focus]

Originally Posted by kennym04

Looks like a great part, but is it intended for off road use or will it qualify for the C.A.R.B. EO number? i'm assuming it won't pass smog considering replacing the cat is legal only in a few instances. Things here in California are pretty tight as far as passing smog emissions...

It is sold "for offroad use only" I'm sure it will pass emissions but it isn't and never will be C.A.R.B approved.

[roadrocket]

Originally Posted by CFM Focus

Pieced together? Since when is the RT one piece? Where in the pics did you see high school shop class
welds???

BTW, we will guarantee the "high school shop class welds"

The random Tech converter has one pipe welded on each side of the actual converter. There are no welds in the middle of the pipes.

So you're guaranteeing that the welds were done in a high school shop class? And if you can't find them, you've said all I need to know about quality. I know my opinions probably aren't popular and that's why I don't post very often. I just get real tired of seeing companies trying to rip off good products with stuff that's lower quality and then bad-mouthing the original. It's pretty obvious to anyone who has been around a bit that you're buying some cheap muffler shop converter, welding some pipe on each end and selling it as something it really isn't. Just my 2 cents.