Independent Dyno Testers Needed!
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
The first of Independent dyno tests this Saturday starting 10:00 AM at Church Automotive in So. Cal..
Complete with pics and sound clips.
This is an open invitation!
Complete with pics and sound clips.
This is an open invitation!
I just tested it with an XYZ on the Riverside Ebay store!! i didn't BUY it, but it showed the 20% live cash back! G/L everyone!
http://forums.slickdeals.net/showthread.php?t=1073607
12/12/08... here we go again... 20% cashback @ ebay ALIVE! ...with the right keywords. :-)
www.live.com
search "overstock electronics"
presto!
I randomly found it while trying to see if there was a cashback deal still alive for overstock.com.
20% off "regular prices" is better than 30% off INFLATED prices... LET'S MOVE QUICKLY BEFORE THE SELLERS FIGURE OUT WHATS GOING ON AND HAVE A CHANCE TO INFLATE THEIR PRICES!
http://forums.slickdeals.net/showthread.php?t=1073607
12/12/08... here we go again... 20% cashback @ ebay ALIVE! ...with the right keywords. :-)
www.live.com
search "overstock electronics"
presto!
I randomly found it while trying to see if there was a cashback deal still alive for overstock.com.
20% off "regular prices" is better than 30% off INFLATED prices... LET'S MOVE QUICKLY BEFORE THE SELLERS FIGURE OUT WHATS GOING ON AND HAVE A CHANCE TO INFLATE THEIR PRICES!
Hmm,
I'm going to a dyno day Feb. 8th. It's 2 months away, but if that's within your testing times send me some pricing info. I'm currently running your Motordyne 5/16" plenum spacer, UR HFC's and a Nismo cat-back exhaust.
I'm going to a dyno day Feb. 8th. It's 2 months away, but if that's within your testing times send me some pricing info. I'm currently running your Motordyne 5/16" plenum spacer, UR HFC's and a Nismo cat-back exhaust.
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
Dyno Comparison!
Pre and post comparative dyno testing was performed on a 2002 350Z.
Pre - Fast Intentions Intimidator 2.5" dual exhaust ~260 HP
Post - Motordyne Harakiri Single 3" exhaust ~260 HP
The test car exhibited excessive knock and was sporadically coughing black smoke during both the pre and post sets. Both test result sets were similar and erratic. Plots and data will be posted shortly.
The power plots show the ECU reacting to ping in both sets. A/F plots show the Harakiri single exhaust raising the A/F ratio by about 2 points over the Intimidator.
Due to excessive knock this test did not make an ideal comparison.
It appears both sets were being held back by the knock. A 2007 G35 6MT on the same dyno did ~275 HP that same day.
The G35 was also to be pre/post tested but we ran out of time.
More comparative testing will be performed on the G35 and other vehicles next week.
Pre and post comparative dyno testing was performed on a 2002 350Z.
Pre - Fast Intentions Intimidator 2.5" dual exhaust ~260 HP
Post - Motordyne Harakiri Single 3" exhaust ~260 HP
The test car exhibited excessive knock and was sporadically coughing black smoke during both the pre and post sets. Both test result sets were similar and erratic. Plots and data will be posted shortly.
The power plots show the ECU reacting to ping in both sets. A/F plots show the Harakiri single exhaust raising the A/F ratio by about 2 points over the Intimidator.
Due to excessive knock this test did not make an ideal comparison.
It appears both sets were being held back by the knock. A 2007 G35 6MT on the same dyno did ~275 HP that same day.
The G35 was also to be pre/post tested but we ran out of time.
More comparative testing will be performed on the G35 and other vehicles next week.
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
Here are the test plots from the test at Church Automotive.
Fast Intentions Intimidator baseline results. Runs 1-4.
Note the large variance in torque and changes in HP indicate the presence of ping. The exhaust was also intermittently puffing black smoke.
Some variances in the power curves is normal and expected but this much is not.

----------------------------------------------------------------
Motordyne Harakiri Single Post Test Results. Runs 1-4.
Note the sharp changes in TQ and HP. These runs were also plagued by ping and puffs of black smoke. Runs one and two were cut short by the dyno operator due to the excessive ping.

----------------------------------------------------------------
Here is an overlay of Intimidator run #4 against Harakiri run #4.
Intimidator = Fine dash line
Harakiri = Heavy dash line

----------------------------------------------------------------
Here is an overlay of Intimidator run #3 against Harakiri run #3.
Intimidator = Fine dash line
Harakiri = Heavy dash line

----------------------------------------------------------------
The presence of heavy ping in both sets has pretty much rendered this comparison useless but the test results are here for your review.
Fast Intentions Intimidator baseline results. Runs 1-4.
Note the large variance in torque and changes in HP indicate the presence of ping. The exhaust was also intermittently puffing black smoke.
Some variances in the power curves is normal and expected but this much is not.

----------------------------------------------------------------
Motordyne Harakiri Single Post Test Results. Runs 1-4.
Note the sharp changes in TQ and HP. These runs were also plagued by ping and puffs of black smoke. Runs one and two were cut short by the dyno operator due to the excessive ping.

----------------------------------------------------------------
Here is an overlay of Intimidator run #4 against Harakiri run #4.
Intimidator = Fine dash line
Harakiri = Heavy dash line

----------------------------------------------------------------
Here is an overlay of Intimidator run #3 against Harakiri run #3.
Intimidator = Fine dash line
Harakiri = Heavy dash line

----------------------------------------------------------------
The presence of heavy ping in both sets has pretty much rendered this comparison useless but the test results are here for your review.
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
nice i thought the harakiri was going to have the canister closer to the bumper similar to the agency power? I guess it could be fabbed up that way? If not then ill have to go with the stainless dual.
Thread Starter
MOTORDYNE-MY350Z SPONSOR
iTrader: (53)
Joined: Jul 2004
Posts: 4,399
Likes: 9
From: L.A. California
Nice! hey can we get some pictures of the whole back part with both exhaust showing maybe 10 feet behind the car. I yet to see it full view. I would love to have one.
Also other mods on the car?
Is that with the single Harakni exhaust or dual?
Also other mods on the car?
Is that with the single Harakni exhaust or dual?
Last edited by OldDirty Z33; Dec 15, 2008 at 06:44 PM.


















