Hey guys,

Finally had time to get a baseline for my motor.
I managed to get 189.4whp and approx. 136lbs of tq. Numbers seem a bit high?

Mods:
-'98 Spec JDM ITR (B18C)
-4.7FD LSD Tranny
-Toda 8lbs flywheel
-RPS Sport clutch
-Generic SRI with S&B Cone
-Spoon 4-2-1 header with 2.5" collecto
-Apex'i Worldsport 1 (straigh pipe)
-Toda cam gears left at 0
-94 Octane Chevron Supreme
-Volk TE37 15"
-chipped P28 ECU ('Mugen' Program)

Anyways, it was run at a local shop called Kinetic Motorsports on a 'Dyno Dynamics' dynamometer. Temp was +1 degrees when i got there and +5 degrees on the last run.

All 4 runs were done in 4th gear. I'll try to get pics up soon. How much discrepancy is there in dyno's?

Any feed back would be great.

Pics are up:





Modified by Mashimaro at 8:18 PM 12/20/2005


Modified by Mashimaro at 8:47 PM 12/20/2005

 

to me the numbers do seem a bit high..
are you on stock R cams?
stock TB and IM?


any other motors to compare with that have been dynoed at the same facility?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Viorent Grip! EG &raquo;</TD></TR><TR><TD CLASS="quote">to me the numbers do seem a bit high..
are you on stock R cams?
stock TB and IM?
</TD></TR></TABLE>

thats what i was thinking especially since dyno dynamic dynos tend to put out a little bit lower #'s around here.

 

Kinetic's numbers always seems on the high side

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Viorent Grip! EG &raquo;</TD></TR><TR><TD CLASS="quote">to me the numbers do seem a bit high..
are you on stock R cams?
stock TB and IM?


any other motors to compare with that have been dynoed at the same facility?</TD></TR></TABLE>

Yup, stock ITR cams/TB/IM.

sorry, i didn't ask the guy to see other dyno charts for reference.

seems kinda high though after searching through HT...

 

go run that bad boy, and you'll know if the hp is right...

 

from the three runs shown on the chart...no changes or tuning was done at all?
almost a 10whp difference

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mashimaro &raquo;</TD></TR><TR><TD CLASS="quote">Hey guys,

Finally had time to get a baseline for my motor.
Temp was +1 degrees when i got there and +5 degrees on the last run.

</TD></TR></TABLE>

freakin cold in the shop, is it sae corrected????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Viorent Grip! EG &raquo;</TD></TR><TR><TD CLASS="quote">from the three runs shown on the chart...no changes or tuning was done at all?
almost a 10whp difference</TD></TR></TABLE>

no changes at all. i don't have any tuning devices yet (not even a vafc) either cuz that'll come after the cam buildup. it was cold in there though, didn't even turn on the fan.

first run was to calibrate the dyno according to the guy who set it up and strapped my car down. other than that, it's apparently SAE corrected.

 

well...seems to me like there arent really many explanations to justify your numbers...
or...
u just have a very healthy freak motor...
big ups to you man
get it tuned

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Viorent Grip! EG &raquo;</TD></TR><TR><TD CLASS="quote">well...seems to me like there arent really many explanations to justify your numbers...
or...
u just have a very healthy freak motor...
big ups to you man
get it tuned</TD></TR></TABLE>

lol, that's what i was thinking too cuz my numbers seem to be higher than some guys running stage 2 cams on their B18C's.

tuning will come next year when i decide on a computer (Hondata or standalone) and a cam build up (Toda B or C....) hoping to get over 200whp then!

could there actually be more power to the JDM motors compared to the USDM versions?

 

nah, based from what I've seen cars run at the local tracks and with the hp output shown on the dyno charts, i'll tell u i guarantee u it reads high hehe.. sorry yo...

You looking at bout 175-180 realistically on any other dyno.

Ie. 210whp dyno chart 150 torque showing traps speeds of 100mph don't add up if yah know wut i mean...

But hey, for 175 not bad still

 

Dyno Dynamics seem to typically read low, but remember that operator input could make that motor put down 250whp if they wanted to.

Edit: 1320th post!!!!!!! just happend to notice

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Viorent Grip! EG &raquo;</TD></TR><TR><TD CLASS="quote">to me the numbers do seem a bit high..
are you on stock R cams?
stock TB and IM?


any other motors to compare with that have been dynoed at the same facility?</TD></TR></TABLE>

H22a:
https://honda-tech.com/zerothread?id=1324530
https://honda-tech.com/zerothread?id=1344440

B20/vtec:
https://honda-tech.com/zerothread?id=1213890

B18C5
https://honda-tech.com/zerothread?id=1327052

Misc:
https://honda-tech.com/zerothread?id=414483
Also, Dr Pooface's car was done there also i believe




Modified by itralex at 2:58 PM 12/21/2005

 

post up some more pictures of your car!

 

Being that Ive never had my car dyno'ed, this may seem like a NOOB question...

Doesn't the operator input your gear ratios before running the car? If so, is it possible that they were entered incorrectly ( or just off by a few tenths)?

Such a small change could theoretically result in a higher-than-average dyno reading. It's still a very strong run, nonetheless.

Happy tuning.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by senseiturtle &raquo;</TD></TR><TR><TD CLASS="quote">Being that Ive never had my car dyno'ed, this may seem like a NOOB question...

Doesn't the operator input your gear ratios before running the car? If so, is it possible that they were entered incorrectly ( or just off by a few tenths)?

Such a small change could theoretically result in a higher-than-average dyno reading. It's still a very strong run, nonetheless.

Happy tuning.</TD></TR></TABLE>

Depending on what software they are using (diff for earch dyno) the operator has the ability to adjust different input parameters. Ramp time.. etc.

 

power output is different between jdm and usdm models, compression is higher on jdm, but......im not sure about b18c5, but like b16a and b18c there is a power difference in jdm or usdm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by young noob &raquo;</TD></TR><TR><TD CLASS="quote">power output is different between jdm and usdm models, compression is higher on jdm, but......im not sure about b18c5, but like b16a and b18c there is a power difference in jdm or usdm
</TD></TR></TABLE>

has this been proven though? that's what i'm curious about...

thanks for the dyno references itralex (that prelude is my buddy's)

 

yes a jdm R motor has a more compression but not much. its like .2 more then a usdm R motor. but your car with the mods you have should make about 175-180whp. i would look into getting some toda spec A's

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clayton bigsby &raquo;</TD></TR><TR><TD CLASS="quote">yes a jdm R motor has a more compression but not much. its like .2 more then a usdm R motor. but your car with the mods you have should make about 175-180whp. i would look into getting some toda spec A's </TD></TR></TABLE>

jdm "r" is 11.0:1...usdm "r" is 10.6:1.

 

i made 191whp on a dynojet at http://dynospotracing.com stock 98+ spec jdm r with a fidanza flywheel, spark racing header, aem itr CAI, and hondata s200..

that 94 octane has to help a little over 91 octane...