What's the factory wheel hp for b16a

[gnx1987]

Right off the ball, I have done a search for this topic cause I'm sure it's been covered but must be typing the wrong search words.

Anyway just want to know how much power the b16 makes at the wheels unmodified. Cause I just got hondata on my ef9 (plus I already had cai, extractors and a 2 1/4 exhaust) and James got me 109kw at the wheels. I want to know the difference over stock so I can get a ballpark at what I got at the flywheel. Cheers.

[Civic Type R]

then the only true figure you should get is a stock B16A using James' dyno machine.
Otherwise this thread will blowout into a stuper

[ekslut]

then the only true figure you should get is a stock B16A using James' dyno machine.
Otherwise this thread will blowout into a stuper

true :thumbsup: But generally the stock B16A's I have seen have put out about 80-88kw @ the wheels. So 109kw @ wheels with cai, exhaust, & extractors is really good. Nicely done :thumbsup:

[ProECU]

true :thumbsup: But generally the stock B16A's I have seen have put out about 80-88kw @ the wheels. So 109kw @ wheels with cai, exhaust, & extractors is really good. Nicely done :thumbsup:

No, stock b16's will give you about 90-95kw at the wheels.

[Civic Type R]

Evan, The only reliable figure you should believe is a stock B16A tested on the same machine where he got 109kw.

[ekslut]

No, stock b16's will give you about 90-95kw at the wheels.

Oh well, let say between 82-95kw @ wheels then :D Coz the 3 or 4 that I have seen have all been under 90kw.

But as mentioned, all depends on the dyno, weather, and many other factors. Its too hard to compare different figures

[ProECU]

I agree on all comments

[yenyenchanchan]

my EF9 got 102kw at the wheels, with a spoon ECU.

[BSRacer]

Other thing that I've heard is that dynos in nsw dyno higher thatn in sa. My 2c b16a1 is 117kw at the fly wheel from factory but at the wheels... what every1 else said.

[Setanta]

4 different dynos for my EF9. 79, 82, 89 and 105 in stock trim. All that tells me is that no two dynos will give you the same reading. The 89 and 105 are to me pure bullshit - but I've seen shonky improvers fudge the use of their dyno - a stock 1960s VW with 200KW ATRW :D

I have serious doubts that an EF9 would get 20 more KW with JUST an ECU change.

[00' coupe]

i knw all dyno arent the same...therefore testin a stock b16 on the same dyno is the go...

ian got 95.6kw at the wheels for his em1... stock... done at Toda by Adrian

[tRipitaka]

and then you have jdm b16a

[yenyenchanchan]

i dont know how many increase by the ECU, it just change the vtec cut in and change the redline ,but the seller said it will be increase 5-15hp.

[muhhan]

no...surely the b16's must put out more power than 80-88kW unless this is the real world power as opposed to what honda publish. The d16y4 is published at generating 88kW, but that isn't dyno proven I don't think.

[AKILYA666]

Ive got a d16y8 and you think i can find much info on power figures.... dont think so. i went to the local dealer and they didn't know what i was talking about. And they sold the car to the previous owner. the reply i got was check honda australia for info. not much info there.

[ian]

No, stock b16's will give you about 90-95kw at the wheels.

a few months ago i saw 2 EM1's at TODA Australia HQ both with B16A2 engines, one completely stock and one slightly modified (exhaust)......one did 95kwatw and the other did 91kwatw.

[**Ghost**]

stock my b16a pulled 89.95 wiht a dirty air filter and out of service....

so i think pro-ecu is on the money... done on a dyno dynamics dyno i believe

[blackshadow42]

I have em1 with b16a engine and I did some modification such as full system 4-2-1 exhaust, air filter and VAFC2. Future tech dyno my car and the result was kinda worried. He said original is 67kw and after dyno became 72kw. I think it's slower than unmodified engine. Any suggestion? Could anyone tell me which place does good dyno?

[ECU-MAN]

what state you in ?

[BrianC]

Why is there a difference in kw between states?

[ECU-MAN]

. Any suggestion? Could anyone tell me which place does good dyno?

whats the point of telling him about a good dyno place in TAS if he is in VIC

[blackshadow42]

what state you in ?
I'm in Victoria

[blackshadow42]

whats the point of telling him about a good dyno place in TAS if he is in VIC
I wonder IF anyone knows a good place for dyno in melbourne.

[Nuttz]

did your vtec fall off?

seriously did your car go into vtec?

[panda[cRx]]

did your vtec fall off?

seriously did your car go into vtec?

constructive mate, real constructive :thumbdwn:

[czy_sol87]

i got a pretty much stock 92 delsol, only mods were pod (in engine bay)
and no muffler. car got about 175k on the clock, and got 79.8kw@wheels
on a dyno dynamics dyno (worn out clutch) dont know if the clutch effects the dyno result though???


I have em1 with b16a engine and I did some modification such as full system 4-2-1 exhaust, air filter and VAFC2. Future tech dyno my car and the result was kinda worried. He said original is 67kw and after dyno became 72kw. I think it's slower than unmodified engine. Any suggestion? Could anyone tell me which place does good dyno?
that definalty not right

mine was dynoed in melborune at
MSC Performance 43 Radford Road, RESERVOIR
thier pretty good didnt cost much either went on a dyno day with
many other cars

[Limbo]

Guys again as stated before it all depends on the dyno and the person doing the dyno, you can get a variance between 20-30kws, if they want to show you those figures. Most places will push up the figures slightly to make you happy. As stated, get another stock b16a, dyno using the same setting and see the difference. Alot of things can affect the car, eg. fuel, tyre pressure, temp on day, worn tyres.... the list goes on.

The only way to get it as precise as possible is to dyno one after another, and maybe even do 2-3 dyno runs and get an average.

[blackshadow42]

i got a pretty much stock 92 delsol, only mods were pod (in engine bay)
and no muffler. car got about 175k on the clock, and got 79.8kw@wheels
on a dyno dynamics dyno (worn out clutch) dont know if the clutch effects the dyno result though???


that definalty not right

mine was dynoed in melborune at
MSC Performance 43 Radford Road, RESERVOIR
thier pretty good didnt cost much either went on a dyno day with
many other cars

How much does it cost? is it different if I dyno my car alone or with many other cars?

[blackshadow42]

Guys again as stated before it all depends on the dyno and the person doing the dyno, you can get a variance between 20-30kws, if they want to show you those figures. Most places will push up the figures slightly to make you happy. As stated, get another stock b16a, dyno using the same setting and see the difference. Alot of things can affect the car, eg. fuel, tyre pressure, temp on day, worn tyres.... the list goes on.

The only way to get it as precise as possible is to dyno one after another, and maybe even do 2-3 dyno runs and get an average.

yeah you're right. That guy changed my vtec point from 5.3 to 3.5 rpm. SHIT..too qiuck and loosing power at the end.

[czy_sol87]

How much does it cost? is it different if I dyno my car alone or with many other cars?

i went with a group, like 20-30 cars turned up on the day, and it cost me around $35, not realy sure how much it would cost if ur dynoing by urself

[Limbo]

dyno run is about $80, that's a single run i believe with a graph.

[Civic_Si]

Well... I dun know whether which dyno results are the real for B16A.
My EM1 B16A stock did 99.75kw on the dyno (conducted by BD4s, Gladesville)
Here is the dyno graph for my Civic on stock....

http://www.cardomain.com/member_pages/show_image.pl?bg=EEEECC&image=http://memimage.cardomain.net/member_images/5/web/713000-713999/713258_12_full.jpg

[Twincam16]

i got 130hp@wheels (approx 98 kwaw) in my 97 del-sol

thats with full x-force exhaust.

[kraiye]

yeah you're right. That guy changed my vtec point from 5.3 to 3.5 rpm. SHIT..too qiuck and loosing power at the end.
3.5!!! dam, i'd be askin for my money back!
what a jerk.
honda pretty much hit the nail on the head with the vtec point for their cams.

[Fr3aKi3]

no...surely the b16's must put out more power than 80-88kW unless this is the real world power as opposed to what honda publish. The d16y4 is published at generating 88kW, but that isn't dyno proven I don't think.

Don't think anyone has commented on this yet, so i will. The power ratings in which manufacturers provide are rated @ the flywheel which is different to power at the wheels as it doesn't take power loss (through drivetrain) into consideration. The D16Y4 is rated at 88kw but throw it on a dyno and you'd probably get roughly 50-60kw maybe.

[j3z3z]

a japenese ef8 (ys1 tranny) tested stock pulls 134-136hp at the wheels 99.92-101.42kw

*ys1=LSD

[kayot1k]

approx. 100kw atw's is awesome for a b16a.
i think in avg, you'll see around the 90kws atws mark for most b16a's.
interestingly enough my mates sohc vtec engine Eg Vti did 75 kws atws ... awesome.


i think as long as its a reputable dyno machine as in " Dyno dynamics " for example, the results should be fairly accurate.

in regards to the vtec engagement, i think you should take it to someone who knows what they are doing.

[EKVTIR-T]

As your after the FACTORY wheel power why not just convert stock flywheel hp/kw to atw?????Isnt that all you wanted??Btw my 93DA9 b18a 200,000kms pulled 80.8kw/atw with pod/catback on Dynodynamics shootout mode.Is that decent?I thought it wasnt a bad number..NO vtec.

[Twincam16]

you cant convert to atw, as there is a drivetrain power loss. Engine/Flywheel figures are same thing, getting this power through your drivetrain and onto a rolling road is another.

If you want supreme accuracy, get your car onto a dynopack, otherwise, head out to a honda dyno day with other cars/engines as yours and see how it compares.

And please, sceptics, stop with all this bullshit that different dynos give very different results. It may vary a few%, and its unlikely the workshop is going to up your results to make you happy, regardless, they have already been payed before they dyno it.

Simple rules, do before & after (on same dyno/same day) as weather and altitude CAN affect the results, so can different fuels, the time since tune/oil change and oil used. Its called standard variables. Use them to your advantage to get best results.

[EKVTIR-T]

I understand there is drivetrain loss but isnt there a formula for calculating fwd atw power taking into account drivetrain loss??

[j3z3z]

I understand there is drivetrain loss but isnt there a formula for calculating fwd atw power taking into account drivetrain loss??

any formula is a B.S formula as a different Drivetrain will lose a different % of power

[Dylanamus]

What's this EF8 with a YS1? All the EF8s I've seen including the two in my garage, have Y1 transmissions, which are non LCD.

[kraiye]

has anyone done a d16 -> b16 swap with before and after dyno?
i'd love to see the kw gain atw

[j3z3z]

What's this EF8 with a YS1? All the EF8s I've seen including the two in my garage, have Y1 transmissions, which are non LCD.

hahaha unlucky!!!! the YS1 was an option on the EF8 in japan, LUCKY ME EY!!!! oh and its LSD not LCD

[Zdster]

And please, sceptics, stop with all this bullshit that different dynos give very different results. It may vary a few%, and its unlikely the workshop is going to up your results to make you happy, regardless, they have already been payed before they dyno it.


I would have to disagree with you on this. I have spoken to a number of tuners, both here and abroad (some very well known) and they state that there are significant differences between dynos - especially inertia dynos. This is not second hand information, this is straight from the tuners mouth.

[j3z3z]

I would have to disagree with you on this. I have spoken to a number of tuners, both here and abroad (some very well known) and they state that there are significant differences between dynos - especially inertia dynos. This is not second hand information, this is straight from the tuners mouth.

:thumbsup: this is true ussually up to 15kw difference