Post your b16b dyno #'s

kellsled

Phil
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Dec 12, 2008
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got 172.4bhp outa my jordan
spec-
5zigen manifold
decat
mongoose cat back
98 spec teg box
exedy lightened flywheel
exedy stage 1 clutch
4.7 final drive
 

E KAY 9

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Jan 12, 2009
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my b18c..stock motor..double head gasket..precision sc61
dynosheet.jpg
 

Techy

The Geek
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Jul 22, 2007
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Holy crap old thread. I've dyno'd since the last post I made in this thread. Back in the at Import Alliance Summer 2008 I got my car up on the dyno in heatsoak conditions. It was probably 105 degrees Fahrenheit or so in there. 2000+ cars in attendance, giant slab of asphalt in the center of a race track, 15-20 cars racing on the track on a 95+ degree day, it was frickin hot.

My EJ6's B16A2 still managed 148WHP in high heat which most assumed to be around 165 or so HP at the crank. The dyno guys figured in lower temps my car coulda had a shot at 150+ WHP. Many people were impressed with the results there cause most expected 135WHP. Apparently my flywheel, intake and exhaust helped more than everyone thought.

I'd post my dyno chart but I can't seem to find the little SOB right now.
 

blinx9900

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Techy those are great numbers for a b16 with such mild mods, it must be in great shape!
 

Techy

The Geek
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Jul 22, 2007
Messages
766
probably needs a new timing belt in the near future and the transmission could be in better shape (a few bad synchros) but the engine itself is kickin ass and taking names. Even my Honda Specialist mechanic (who was also at Import Alliance that day) was impressed. Before I went up he said it should make 130 or a little higher.

I love the thing. Still pulls as hard as ever.
 
Last edited:

NZRacerX

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Mar 31, 2009
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86
Dyno30April2009R12a.jpg


Stock engine internals
Spoon Intake Filter
Spoon Direct Air Flow Pipe
Spoon Throttle Body
Honda B18CR Intake Manifold
J's Racing Headers
Omni Test-Pipe
Spoon B-Pipe
Spoon N1 C-Pipe
Hondata S300
 

SPek9

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Had my B16b ek9 RR'd on Saturday at AI Autosport N.Ireland

The car made 187.5Bhp at the flywheel 169.8Bhp at the wheels and 114 torque:)

Im happy enough with the results

SPEC:
-Dc2 Airbox
-DC JDM 4-1 manifold
-Standard exhaust
-Standard ECU

The car needs mapped to make the most out of the manifold as peak torque and Bhp will only be achieved with the correct map. I also feel that the standard exhaust is restricting the car and defeating the purpose of creating more flow from the 4-1.
 

ALEX-CY

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Mar 17, 2009
Messages
789
had my b16b ek9 rr'd on saturday at ai autosport n.ireland

the car made 187.5bhp at the flywheel 169.8bhp at the wheels and 114 torque:)

im happy enough with the results

spec:
-dc2 airbox
-dc jdm 4-1 manifold
-standard exhaust
-standard ecu

the car needs mapped to make the most out of the manifold as peak torque and bhp will only be achieved with the correct map. I also feel that the standard exhaust is restricting the car and defeating the purpose of creating more flow from the 4-1.
for a standar engine is very good
 

eternal blue 2000

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Had my B16b ek9 RR'd on Saturday at AI Autosport N.Ireland

The car made 187.5Bhp at the flywheel 169.8Bhp at the wheels and 114 torque:)

Im happy enough with the results

SPEC:
-Dc2 Airbox
-DC JDM 4-1 manifold
-Standard exhaust
-Standard ECU

The car needs mapped to make the most out of the manifold as peak torque and Bhp will only be achieved with the correct map. I also feel that the standard exhaust is restricting the car and defeating the purpose of creating more flow from the 4-1.

nice results there bud,as you said new exhaust and you should be happy :)

do these tuners just make up numbers when converting "flywheel" power to
"wheel" power? thats a question i would like to know the answer to!

i ask because i have seen so many prinouts that confuse me.....my car was rolling roaded last at 185.5bhp flywheel power and when converted to whp it was 147.7bhp.
now stephens above was near same flywheel power but near 20bhp more when converted to wheel power!
thought they all used the same conversion method.
 

Techy

The Geek
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Jul 22, 2007
Messages
766
nice results there bud,as you said new exhaust and you should be happy :)

do these tuners just make up numbers when converting "flywheel" power to
"wheel" power? thats a question i would like to know the answer to!

i ask because i have seen so many prinouts that confuse me.....my car was rolling roaded last at 185.5bhp flywheel power and when converted to whp it was 147.7bhp.
now stephens above was near same flywheel power but near 20bhp more when converted to wheel power!
thought they all used the same conversion method.

Now when on a wheel dyno, it's supposed to measure WHP only, right. I'm wondering where you are getting Flywheel numbers. I always sounds to me they are just making that **** up unless you're motor's been on a motor dyno.
 

SPek9

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nice results there bud,as you said new exhaust and you should be happy :)

do these tuners just make up numbers when converting "flywheel" power to
"wheel" power? thats a question i would like to know the answer to!

i ask because i have seen so many prinouts that confuse me.....my car was rolling roaded last at 185.5bhp flywheel power and when converted to whp it was 147.7bhp.
now stephens above was near same flywheel power but near 20bhp more when converted to wheel power!
thought they all used the same conversion method.


Cheers Bud, the conversion between Flywheel and Wheel horsepower is calculated from the drag created by the car on the rollers when they are slowing down after the run.
My dc2 was RR'd at 205bhp which only worked out around 172ish at the wheels. It all depends on the car and mileage on the drivetrain but I have also heard that it also depends on how tight the car is strapped down but i am unsure. Had a run with my old DC2 recently and they were gear for gear exactly the same speed:nice:
 

eternal blue 2000

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think they use 15% loss sum when converting into whp,well close to that
figure if i remember correctly from while back on here i think!
 

SPek9

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think they use 15% loss sum when converting into whp,well close to that
figure if i remember correctly from while back on here i think!

Its not just a general equation used for every car bud, it is calculated by the drag created on the rollers by each individual car after the car is reved to the max Bhp and it is slowing down.

When I had the dc2 RR'd, there was another dc2 with half the mileage of mine and even tho it was producing less HP at the flywheel it was only loosing 20bhp at the wheels, were as mine was loosing 30bhp! but as I say I have been told my the guys who run Dyno Tune near Ballymena that this figure can be affected by how tight they strap the car down on the rollers and that they just go by the flywheel figure when tuning their race cars
 

eternal blue 2000

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dynos are a joke at the end of the day.....

searched previous posts there and so many various things can effect flywheel
to whp conversion, even different countries and altitude :wow:

if your car performs the way you want and your happy then thats good enough in my eyes,seen so many people ponder over a piece of paper and
take it to heart :(
 

SPek9

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Yea I know exactly what you mean, the best use of a dyno would be live re-mapping but they do give a rough figure of what the cars putting out and personally I would just go by the flywheel horsepower.

The best way to test your car is to get it on the quarter mile strip or on the track imo!
Im lukin forward to doin a few more mods, gettin some better tyres then doin a few drag runs and possibly a blast on the track:naughty:
 

Techy

The Geek
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Jul 22, 2007
Messages
766
OK, y'all are gonna have to explain how your dynos work cause all I've ever known is ones that your drive wheels sit on rollers and the dyno measures only wheel horse power and engine dyno's that an engine sits on measures flywheel horse power.
 

ALEX-CY

Active Member
Joined
Mar 17, 2009
Messages
789
dynos are a joke at the end of the day.....

searched previous posts there and so many various things can effect flywheel
to whp conversion, even different countries and altitude :wow:

if your car performs the way you want and your happy then thats good enough in my eyes,seen so many people ponder over a piece of paper and
take it to heart :(

x 2
 
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