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Old 11-06-2010, 03:18 PM   #1
KillerBMotorsport
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Default Killer B Motorsport Header Testing Results

Event: Killer B Header Test & Comparison
Location: Epic Motorsports, Fayetteville, NC
Ambient Temp: 70s
Elevation: Sea Level
Weather: Partly Sunny

08 Sti
Tuner: Robbie/ Epic Motorsports
Dyno Info: Mustang
Peak HP at RPM: 295@5,300
Peak Torque at RPM: 339@3,500
Baseline hp/tq for a stock on same dyno: 241hp & 247ft/lbs W/ Megan Cat-Back
Target Boost:
Target AFR:
Fuel: 93

Here's the end of the day results with the car as it came in the morning, stock with the exception of a Megan Cat-Back, and as it left at the end of the day. The Customer was VERY happy with the results.




Before converting the car to stage II we installed the Killer B header just to see what kind of results we'd get on essentially a stock car. The OEM tune was not very happy with the changes so we could only compare both stock vs. Killer B header using the Cobb OTS Stage I map. Thankfully, we had tried out the Cobb Stage I map after getting our baseline runs.




Here's a comparison of Stage II with OEM header vs. Killer B Header

OTS Stage II with OEM Header vs OTS Stage II with Killer B Motorsport Header. Stage II mods: Cobb AP Stage II, Megan Catt-Back, Invidia Catted DP, K&N Typhoon Intake, Walbro Fuel Pump, and Killer B Motorsport Header/up-pipe. +25 HP and +18 ft/lbs



Here's the Cobb Stage II vs the final Epic Motorsports Custom Tune.





Here's a similar result that was seen during Killer B Header testing done at EFI Logics.

You can find thier Full Review RIGHT HERE.



Killer B's GD


Customer's GR

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Last edited by KillerBMotorsport; 12-30-2010 at 09:22 AM.
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Old 11-06-2010, 04:59 PM   #2
synolimit
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100% for real, your saying that OTS stage 2 OEM header VS. your header had that much gain? was any tuning done or was it just thrown on and run again
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Old 11-06-2010, 05:17 PM   #3
Equilibrium Tuning
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Notice that on the stage 2 testing with the Cobb OTS map, the test with the headers is a lot leaner than the test without. I would easily attribute at least a decent chunk of that gain to the fact that the headers leaned out the tune.

-- Ed
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Old 11-06-2010, 05:29 PM   #4
synolimit
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very true. looks a little to rich before hand though. looks pretty good after the header right around 11.
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Old 11-06-2010, 05:42 PM   #5
gtasti
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can't wait to retune with my new killerb header looking for over 400hps this time around
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Old 11-06-2010, 05:59 PM   #6
SeaOfGreen
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What's the point of comparing to stock? I want to check the difference between this header compared to other named brand header's! That will be the real test!
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Old 11-06-2010, 06:19 PM   #7
andboe
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the fact that's it's 321 stainless steel is enough to sway me (everything else for stock location seems to be 304) but i'd like an option for an EWG on the uppipe.

nice results and nice product. good to see someone designing something with quality materials
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Old 11-06-2010, 06:45 PM   #8
KillerBMotorsport
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I have a few other comparisons, but in general with the longer primary type headers and 1.5 scroll headers (Invidia, GP Moto, etc.) you see significantly reduced spool time and power carried higher into the revs. With the shorter and smaller diameter primary type headers (Perrin, GTSpec, etc.) you'll see similar or better spool time with decent gains higher in the revs.

Here's a comparison to Perrin's headers (Killer B setup dashed lines)...

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Old 11-07-2010, 11:59 AM   #9
gtasti
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I just took it out for a spin with this header and new 20g installed and feels a lot better then the stock mainfold throttle is dead on so responsive now, I also had perrin headers before and the response time wasnt half as good as these headers
mind you i didnt hit any boost really not tuned yet for the new stuff

cant wait to re-tune
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Old 11-07-2010, 01:40 PM   #10
KillerBMotorsport
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^ Very nice!
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Old 11-07-2010, 02:37 PM   #11
OVeRBOOSTn
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Goodjob chris! Congrats on another awesome product!

-Stu
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Old 11-07-2010, 02:38 PM   #12
OVeRBOOSTn
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Goodjob chris! Congrats on another awesome product!

-Stu
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Old 11-07-2010, 03:33 PM   #13
Phatron
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can we see the timing curves since thats where the power is coming from......
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Old 11-07-2010, 04:14 PM   #14
KillerBMotorsport
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For which plots EFI or Epic? I know the Epic before/after plots use the Cobb OTS maps, except for the final custom tune.
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Old 11-07-2010, 06:21 PM   #15
Equilibrium Tuning
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Quote:
Originally Posted by KillerBMotorsport View Post
I have a few other comparisons, but in general with the longer primary type headers and 1.5 scroll headers (Invidia, GP Moto, etc.) you see significantly reduced spool time and power carried higher into the revs. With the shorter and smaller diameter primary type headers (Perrin, GTSpec, etc.) you'll see similar or better spool time with decent gains higher in the revs.

Here's a comparison to Perrin's headers (Killer B setup dashed lines)...

Looks like a bit more boost with your header up top is causing the increase in power. With the Perrin test, it looks like there was a boost leak or a pre-turbo exhaust leak... notice the torque peak is well after 4k RPM. This could also explain the lower boost levels up top.

BTW, I'm not saying your product is not good, but we all have to be very careful about how we run tests like this to make sure they're fair. I don't want this to turn into another Garage GT fiasco .

Thanks
-- Ed

Last edited by Equilibrium Tuning; 11-07-2010 at 06:46 PM.
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Old 11-07-2010, 06:43 PM   #16
Junior2JZ
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Quote:
Originally Posted by Equilibrium Tuning View Post
Looks like a bit more boost with your header up top is causing the increase in power. With the Perrin test, it looks like there was a boost leak or a pre-turbo exhaust leak... notice the torque peak is well after 4k RPM. This could also explain the lower boost levels up top.

BTW, I'm not saying your product is not good, but we all have to be very careful about how we run tests like this to make sure they're fair. I don't want this to turn into another Garage Tuning fiasco .

Thanks
-- Ed
I wouldn't bet on that. Look at the 41-4700 range, it makes more boost as well but a little less power. The spool looks about right for the perrin header, and the boost curve looks pretty smooth for having a pre-turbo exhaust/boost leak. The power gain up top is also pretty substantial, I doubt the 1/2psi more boost is making the power gain, look at the gain past 6200 were the boost is virtually the same.

My opinion would be that Chris built himself a good working header.
I wouldn't mind swapping out my Tomie and trying the KillerB out on my XT
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Old 11-07-2010, 06:50 PM   #17
Equilibrium Tuning
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I don't know... I haven't tuned too many perrin header VF cars that had a torque peak near 4500RPM. I've also seen a lot of perrin headers leak from the slips or warped flanges, so I wouldn't be surprised at all if that's what caused the excessive lag.

The only real fair comparison I see here is the one done by EFI. It shows some healthy gains above 5k RPM with a bit of added lag compared to a factory header. Now I'd really like to see a fair comparison with a Tomei/GTSpec/MadDad header.

-- Ed
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Old 11-07-2010, 07:03 PM   #18
Junior2JZ
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Quote:
Originally Posted by Equilibrium Tuning View Post
I don't know... I haven't tuned too many perrin header VF cars that had a torque peak near 4500RPM. I've also seen a lot of perrin headers leak from the slips or warped flanges, so I wouldn't be surprised at all if that's what caused the excessive lag.

The only real fair comparison I see here is the one done by EFI. It shows some healthy gains above 5k RPM with a bit of added lag compared to a factory header. Now I'd really like to see a fair comparison with a Tomei/GTSpec/MadDad header.

-- Ed
Yea, lets compare them to my Tomei .. I could use every little bit of power in my 3500lb tank to move further up the vf list
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Old 11-07-2010, 08:18 PM   #19
Phatron
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no lets compare them to my tomei
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Old 11-08-2010, 12:08 AM   #20
Junior2JZ
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Quote:
Originally Posted by Phatron View Post
no lets compare them to my tomei
I think he wants to see some track proven results.. not airboy plots and high 12sec passes
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Old 11-08-2010, 12:16 AM   #21
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We will also soon have some test data for the Killer B header on one of our shop cars (08 STi with a 20G) . Wanted to get something done yesterday but were derailed when our baseline testing was corrupted by a boost leak. Since the only thing worse than no data is bad data, we'll have some fair and objective data up on a week or so.
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Old 11-08-2010, 01:11 AM   #22
Phatron
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Quote:
Originally Posted by Junior2JZ

I think he wants to see some track proven results.. not airboy plots and high 12sec passes
Have u made 2 passes yet within 0.2 and 2mph?

I knew I shoulda gone to the track today
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Old 11-08-2010, 11:02 AM   #23
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Quote:
Originally Posted by Phatron View Post
can we see the timing curves since thats where the power is coming from......
All the before and after testing was OTS cobb stage 2 maps with no changes, except the actual tune which even then didnt get messed with much. If I remember correctly Tim Bailey was refining the OTS maps and it made great power the way it was. I'll get the timing info for you.

Quote:
Originally Posted by Equilibrium Tuning View Post
I don't know... I haven't tuned too many perrin header VF cars that had a torque peak near 4500RPM. I've also seen a lot of perrin headers leak from the slips or warped flanges, so I wouldn't be surprised at all if that's what caused the excessive lag.

The only real fair comparison I see here is the one done by EFI. It shows some healthy gains above 5k RPM with a bit of added lag compared to a factory header. Now I'd really like to see a fair comparison with a Tomei/GTSpec/MadDad header.

-- Ed
The Perrin header car was tuned about 2 weeks before hand and was originally posted because Juan wanted to see how it compairs to Killer B's header. And that torque peak could be shifted back a bit more the customer wanted more midrange and wasnt worried much about topend.

We did all of our testing in one day which made for a bunch of back and forth parts swapping. But We have a car that will be tested in a similar fashion as efi's. The car will be tuned with a factory manifold then the Killer B header will be installed and do a few more pulls.
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Old 11-08-2010, 12:41 PM   #24
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Quote:
Originally Posted by Phatron View Post
Have u made 2 passes yet within 0.2 and 2mph?

I knew I shoulda gone to the track today

My fault Ron. We should have been at the track over the weekend. Only if my car didn't take a crap

Nice looking manifold Killer B!! A little rich for my blood but nice none the less.
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Old 11-08-2010, 12:45 PM   #25
Junior2JZ
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Quote:
Originally Posted by Phatron View Post
Have u made 2 passes yet within 0.2 and 2mph?

I knew I shoulda gone to the track today
Yea I did Ronaldson .. 12.0@111/11.8@113 on E85 and 12.2@109/12.4@XXX on 93!!!

Get the damn car to the track already, you have 2.. Make time for at least 1


Jr
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