ToMyx Intake Vs Sti Panel Filter Dyno

Myxalplyx · #1 10-17-2007, 05:50 PM

Place: Verocious Motorsports
Car: 1996 SVX AWD
Dyno: Dynojet
Test: Intakes

Dyno tested the ToMyx intake vs an STi Panel filter/cut Resonator on stock intake. I apologize for not getting it to be fully stock but I thought I had one in a box that had another SVX intake (Not the resonator).

I won't run my mouth too much. Wanted to get six runs in with 1st to top of 3rd. Was only able to get one run with the ToMyx intake and one with the stock setup all the way up through 3rd gear. No biggie! Got to shop from work with the ToMyx intake on. Tested it 3X and changed it on the dyno. Tested the stock intake 2X. Only two full runs all the way up through 3rd gear though. I will display those two runs since this is what I typically do so you can see what is going on all the way through the runs.

Below: Full run of both intakes from 1st to 3rd gear. Sorry for the huge images.

Since Chike and other folks focused on 2nd gear with dyno pulls, below is the torque and horsepower plots of both dyno pulls.

Here's the torque:

STi Panel Filter: 138.44ft-lbs @ 6000rpm
ToMyx Intake: 155.18ft-lbs @ 6000rpm
+16.74 ft-lbs

Here's the horsepower:

STi Panel Filter: 158.17whp @ 6000rpm
ToMyx Intake: 177.31whp @ 6000rpm
+19.14whp

You may not believe me. That's ok. Call Verocious Motorsports and talk to the General manager Andy there. He was the one driving. I only changed it on the dyno.
For reference, Here's a link to a recently done dyno run that I got a paper copy on (with 19" rims) and Sti Panel filter. http://subaruxt.com/forum/files/19inch_svx.jpg 165whp. Also, here's a link to the thread I posted dyno runs right after I purchased the car from Chike over a year ago. http://www.subaru-svx.net/forum/showthread.php?t=31143 Comcast server currently down but when it comes back up, you'll see whp around 165whp or so. That's just to verify consistency with this dyno.

I am happy is an understatement. The ToMyx can see some improvement inside by smoothing some of the dead spot where it goes from one tube to two. TomsSVX would know what I'm talking about. Probably good for another 2-4whp. Air/fuel ratio all over the place. Never saw this and didn't noticed until I got home since the horsepower was all I could focus on.

Oh yeah...it is making power where I said I was hoping it would. Right where the stock one dropped off. I also was hoping it made over +10whp from the poll I took. I persued this intake setup for almost two years since the 'Intake Idea' thread. It paid off! I'm ecstatic!

So....comments!?!

Tim · #2 10-17-2007, 05:55 PM

Sweeeeeet! Congrats on your hard work it really seems to have paid off.

nextse7en · #3 10-17-2007, 05:59 PM

I'll be the first to say it, I was wrong. 2 years ago I didn't think you would find any gains. A whole hearted congratulations to you for designing it and Tom for doing the fab work. Always good to see a little more power squeaked out of these beasts. (20 hp is nothing to laugh at)

So, when do you start shipping?

-Patrick

Myxalplyx · #4 10-17-2007, 06:02 PM

***Deleted***

AppStateSVX · #5 10-17-2007, 07:04 PM

like I said in the other thread, CONGRATS!!! i'm glad this finally happened

sicksubie · #6 10-17-2007, 07:23 PM

This is absolutely great.....

ridered777 · #7 10-17-2007, 09:30 PM

Quote:

Originally Posted by nextse7en

So, when do you start shipping?

Ditto!

Count me in for one. Like someone else commented, the smoother power curve alone seems worthwhile, not to mention the gains!

Sov13t · #8 10-17-2007, 10:52 PM

I am interested!!!

SilverSpear · #9 10-18-2007, 12:41 AM

Kevin, congrats on that awesome job... thumbs up for you!

Chiketkd · #10 10-19-2007, 08:54 AM

Quote:

Originally Posted by Myxalplyx

Here's the horsepower:

STi Panel Filter: 158.17whp @ 6000rpm
ToMyx Intake: 177.31whp @ 6000rpm
+19.14whp

Kevin,

What I like most about the above graph for horsepower, is that the increased intake flow is really allowing the engine to come alive higher up in the power band where it previously fell flat.

What's very interesting though, is that w/o the ToMyx intake on, peak power is made around 5,400rpms which is similar to where an SVX on stock cams would reach its peak. With the addition of the ToMyx intake, peak power is made in the 5,800-6,000rpm range. Your gains are astounding, but an SVX on stock cams would probably not see as big of a peak gain as you did, but similar to what you saw, the area under the graph for both tq and hp will increase everywhere throughout the rev band.

I'm glad to see that you had the insight, resourcefulness and persistence to design and get this intake done! In good conditions, this car should run the 1/4 mile solidly in the 14's!

mbtoloczko · #11 10-27-2007, 02:13 PM

Wow. This has to be the most impressive HP gain I've ever seen for an SVX outside of nitrous or forced induction. Very nice.

BTW, did you guys monitor afr before/after? Would be interesting to see because the large change in intake geometry can affect air flow pattern through the MAF which can lean/richen the afr.

curly2k3 · #12 10-30-2007, 08:12 PM

not bad man, glad to see your hard work and research paid off

GreenMarine · #13 03-01-2008, 04:42 PM

Quote:

Originally Posted by Chiketkd

Kevin,

What I like most about the above graph for horsepower, is that the increased intake flow is really allowing the engine to come alive higher up in the power band where it previously fell flat.

What's very interesting though, is that w/o the ToMyx intake on, peak power is made around 5,400rpms which is similar to where an SVX on stock cams would reach its peak. With the addition of the ToMyx intake, peak power is made in the 5,800-6,000rpm range. Your gains are astounding, but an SVX on stock cams would probably not see as big of a peak gain as you did, but similar to what you saw, the area under the graph for both tq and hp will increase everywhere throughout the rev band.

I'm glad to see that you had the insight, resourcefulness and persistence to design and get this intake done! In good conditions, this car should run the 1/4 mile solidly in the 14's!

Wait a sec... So the test car was not on stock cams??

~ Chris

TomsSVX · #14 03-01-2008, 05:04 PM

no, it does not have stock cams.

Tom

GreenMarine · #15 03-01-2008, 05:05 PM

Quote:

Originally Posted by TomsSVX

no, it does not have stock cams.

Tom

So it's not exactly an accurate test then is it? I mean, all things considered here, probably less than 5% of the owners on here have the cams, so the results wouldn't really be the same.

~ Chris