MazdaSpeed 3 on Dyno Dynamics - VIDEO

2567 Views 16 Replies 9 Participants Last post by ZooZoom, Mar 14, 2007

ms3truered

Discussion Starter · Mar 11, 2007

Well, finally got on the dyno, it was a lot of fun. Final results were 230WHP and 270TQ. I knew before hand the nose dive after 5600 rpms and that this thing runs pig rich. Seeing the graphs first hand makes it very apparent that with a good tune this thing will make a lots more power just by leaning it out. Check out the heat soak issue after my initial first run (top lines are HP, lower lines are TQ), definitely need a larger TMIC or FMIT setup in the future. The guys at Hot Rod Imports really spent time explaining everything they were doing and I learned a lot. I hope to be back soon.

This was done on a Dyno Dynamics machine. The Dyno Dynamics dyno reads lower than the Mustang dyno, it reads WAY lower than a Dyno Jet. It also reads WAY lower than a Dynapack. The important factor is that this dyno is very accurate. Going with the other dyno's would have printed much higher readings but I would rather have accuracy than bragging rights.

I pieced this video together of a few runs, graphs and a test drive at the end. I will record a few more videos once I receive the Turboxs CBE and downpipe, probably take another hit at the dyno as well :lol:

Here is the video
http://www.youtube.com/watch?v=z7oE2DM1-sQ

07 MS3 - True Red - Turboxs Race Pipe - MazdaSpeed CAI
RIP: 03 LS 350z - Injen Super SES - MSR 088's

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GT1

· #2 · Mar 11, 2007

[quote author=ms3truered link=topic=71655.msg1260708#msg1260708 date=1173586644]
(top lines are HP, lower lines are TQ) [/quote]

3rd or 4th gear?
BTW, the top lines are torque, the lower are HP.

mattleegee

· #3 · Mar 11, 2007

230whp with the CAI.... seems low

ms3truered

Discussion Starter · #4 · Mar 11, 2007

[quote author=GT1 link=topic=71655.msg1260718#msg1260718 date=1173586950]
3rd or 4th gear?
[/quote]

4th gear. I knew a few people were having issues with third so I thought 4th would be the weapon of choice

ms3truered

Discussion Starter · #5 · Mar 11, 2007

[quote author=Mattleegee link=topic=71655.msg1260719#msg1260719 date=1173587025]
230whp with the CAI.... seems low
[/quote]

This was done on a very accurate dyno (details in post) and it doesn't inflate the actual power you have like the dyno-jet, mustang dyno,ect.
With a few more mods though I'll be past the 300 mark (at the wheels), in TQ at least

Trubopower

· #6 · Mar 11, 2007

So what would you say to add? 10-15%?

ms3truered

Discussion Starter · #7 · Mar 11, 2007

[quote author=TruboPower link=topic=71655.msg1260745#msg1260745 date=1173587965]
So what would you say to add? 10-15%?
[/quote]

I was told around 20%, not sure of the exact percentage

proclam

· #8 · Mar 11, 2007

Every dyno manufacturer/operator will tell you their dyno is more accurate. I am happy with my results off of a dynojet. Interestingly enough, you actually got a higher wheel tq reading than I. The importance of the dyno is more for you to get a baseline, than bragging rights. Just food for thought.

Side note, dynojet gave me peak whp of 249.45 and peak wtq of 266.36. Stock. Its in the stock dyno thread.

ZooZoom

· #9 · Mar 11, 2007

like he said, DON'T GET WRAPPED UP with the exact numbers. comparing different dynos - or even the same exact type of dyno in different locations - is just plain rediculous. dynos are a tool for measuring change (gains/loss) from modifications. even the same car on the same dyno can read +/- 10% differences under changes in conditions like temp & humidity.

by the way, nice numbers.

ms3truered

Discussion Starter · #10 · Mar 11, 2007

[quote author=ZooZoom link=topic=71655.msg1260779#msg1260779 date=1173589405]
like he said, DON'T GET WRAPPED UP with the exact numbers. comparing different dynos - or even the same exact type of dyno in different locations - is just plain rediculous. dynos are a tool for measuring change (gains/loss) from modifications. even the same car on the same dyno can read +/- 10% differences under changes in conditions like temp & humidity.

by the way, nice numbers.
[/quote]

Very true. I like the fact that this guy's shop is 15 minutes from my house too :lol:

CosmicBlueMS3

· #11 · Mar 11, 2007

interesting numbers, seems the cai and the test pipe really up the tq moreso than the hp
either way, I know I like my car that much more with those mods on it

MS3 Hot Hatch

· #12 · Mar 12, 2007

Whatever dynos say, this car would not on average be sub 6 with the power to weight ratio that your dyno implies. That would be roughly 13.74 pounds per horse power. Disregarding torque, temperature, gear ratios, FWD vs. AWD, driver and tires for a minute, on average you have to be on 13.00 pounds per horse or less to be a sub 6 on average which would imply that the Speed3 would need more than 240 whps to yield sub 6 in 0-to-60 runs. If anybody has more reliable data on this, please share it. I'm interested. It's a ballpark figure as I pointed above, torque, gear ratios, FWD vs. AWD, driver (skills, weight, etc.) and tires, etc. impact the pounds per horse power needed to beat 0-to-60 in less than 6 seconds. With more than twenty years of experience owning and driving cars, the Speed3 "feels subjectively" to put at least 250 whps, but this is just my personal experience, which definitely has no scientific value.

I do wonder how much a Chrysler 300C or a Charger R/T both with HEMI V8s with 340 hps and 390 lp/ft dyno at? Both have crank 12 pounds per horse power and are RWD and I have outrun them both more than once on a flat landing field. I'm no magic driver either.

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mattleegee

· #13 · Mar 12, 2007

i want a race pipe....

sergio

· #14 · Mar 12, 2007

One question. Why was the hood up? Wouldn't you want the hood closed and a bigass fan blowing air to the IC?

mattleegee

· #15 · Mar 12, 2007

[quote author=sergio link=topic=71655.msg1262108#msg1262108 date=1173669018]
One question. Why was the hood up? Wouldn't you want the hood closed and a bigass fan blowing air to the IC?
[/quote]

That seems to be the trend lately with the MS3.... I dont know why also

ms3truered

Discussion Starter · #16 · Mar 12, 2007

[quote author=sergio link=topic=71655.msg1262108#msg1262108 date=1173669018]
One question. Why was the hood up? Wouldn't you want the hood closed and a bigass fan blowing air to the IC?
[/quote]

I did it both ways, hood up with the fan on yielded slightly higher results.

ZooZoom

· #17 · Mar 14, 2007

what's with all the "why's the hood up?" questions?

I've seen about two dozen Subarus on dynos. a TMIC car always had the hood up and the fan(s) blowing onto the TMIC as strong as possible.

only cars equipped with FMICs had the hood down and the fans focused on the front of the car.

I don't think any fan (except in a wind tunnel) could ever make the grill scoops or hood scoop work as effectively as it would on the street.

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