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RE-Dyno'ed my K20A *updated 11/28, graph on post 112

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Old Sep 29, 2005
  #31  
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jack: if the car wasn't already warm, vtec wouldn't engage. if you read already, I'm already using a high octane gas mixture.

drjciv: I'm using the factory type r clutch and fly ... but that's not gonna affect the dyno.

xprod: even playing with the intake still isn't going to change the fact that my dyno figures are only 5whp more than a bone stock type S. And that's with an intake, intake mani gasket and no power steering ... so really, they are on par with stock type S numbers.

I already know that dynos are supposed to measure gains and not actual power, but gains or not, when a dyno fluctuates 20 whp, that is something to think about.
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Old Sep 29, 2005
  #32  
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I was just wondering about the clutch.
Your not the only one to complain about dyno jet dyno's.
Where are you at there are a lot of dyno shops here in so cal.
You may not want to take the #'s too seriously because aren't dyno jets usually used for mustangs?
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Old Sep 29, 2005
  #33  
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^ dyno jets aren't bad. this particular one reads a little off, in my opinion. I'm gonna have to try a different one .. if that reads the same, then perhaps my particular engine is weak.

that dyno is only 15 min away ... there are a lot of dyno shops, but most are in riverside or la ... which are like an hour or more away.

aren't mustang dynos used for mustangs? -_-;;
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Old Sep 29, 2005
  #34  
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Did you do a compression and leak-down test on the motor or did you just take the word of whoever you bought it from that the motor was in good condition? Your motor probably has 500,000 miles on it and is running on 3 cylinders. I'm just kidding. I wouldn't put too much stock in dyno numbers. There are so many fluctuations in numbers from dyno to dyno that you can't quabble over 20 horsepower (It does feel good to get a high number to brag about on the internet, though). Also, Honda engines are known to be susceptible to poor performance due to high ambient temperatures (maybe not as bad as a turbo motor but you'll definately see a difference). Regardless, a stock (or lightly modified) K20A isn't going to put out great numbers. I hope you have big plans for that thing. Otherwise, it seems like kind of a waste of money.
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Old Sep 29, 2005
  #35  
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^ I don't think it has very many miles on it. Japanese motors tend to have very low miles ... they don't have a 3000 mile country that they can cross like we do ;P

I was told it was from an 04 as well.

no, I haven't done a compression/leakage test ... perhaps I should one of these days.

another note ... I checked one of the spark plugs a few days ago ... one side of the top of it was black, the other side of it was white ... could that mean my injectors may be clogged?
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Old Sep 29, 2005
  #36  
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Its a dynojet............problem solved.
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Old Sep 29, 2005
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Originally Posted by aznboysrfr
dezod: those numbers are very low.

gear: I figured why not ... 90 degree heat isn't gonna lower it that much though... right?
a rule of thumb is every 10 degreees temp drop adds 1%hp !!!!
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Old Sep 30, 2005
  #38  
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Originally Posted by aznboysrfr
220 PS, yes. However, all of the honda motors are actually rated in PS. The RSX is rated at 160 PS, etc ... www.honda.co.jp

on that same note, it doesn't make sense to calculate the base RSX's PS/HP correctly and severely over rate the type r.

135whp /157 BHP = 14%
165whp /216 BHP = 23%
sorry for the late reply..... K20A3 in America is rated at 155BHP.
http://www.acura.com/models/model_sp...asp?module=rsx
b/c of the new standards Honda is following set by SAE.... but I think you knew that already.
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Old Oct 1, 2005
  #39  
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Originally Posted by aznboysrfr
^ I don't think it has very many miles on it. Japanese motors tend to have very low miles ... they don't have a 3000 mile country that they can cross like we do ;P

I was told it was from an 04 as well.

no, I haven't done a compression/leakage test ... perhaps I should one of these days.

another note ... I checked one of the spark plugs a few days ago ... one side of the top of it was black, the other side of it was white ... could that mean my injectors may be clogged?
could be too rich. you get an a/f reading at all? when i went dynoing w/ a turbo 7th gen, his plugs were white, b/c his a/f was below 10. and you are using some pretty rich fuel w/ i'm sure high temperatures. wouldn't think it would have quite that effect, but who knows.
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Old Oct 1, 2005
  #40  
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Originally Posted by CuRiOuSfIsH
sorry for the late reply..... K20A3 in America is rated at 155BHP.
http://www.acura.com/models/model_sp...asp?module=rsx
b/c of the new standards Honda is following set by SAE.... but I think you knew that already.
I'm talking about the old figures. EITHER WAY, it is still around 14% drivetrain loss for the k20a3 and 23% drivetrain for my k20a. the difference there is too much.

doubledeuce: actually I inspected (only) one of my spark plugs ... half of the rim was black, half was white ... I don't understand ... maybe my injectors are clogged? ... I don't know what to think of that.
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Old Oct 1, 2005
  #41  
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torque the spark plugs, then start using fp60/lc20 if motor is broken in already. That stuff really works.
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Old Oct 1, 2005
  #42  
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did you check the gap on the plugs? maybe it's not enough and it's leaving some fuel unburned. can you scan the dyno sheet?
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Old Oct 1, 2005
  #43  
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yeah, I'll try the fp60/lc20 stuff ...

denso and ngk plugs are already pre-gapped ... anyway, the one I pulled out, the gap looked fine. just some odd discoloration.

yeah I'll scan it on monday ... the lines are very wavy ... not smooth at all ... I don't know if that's normal or what
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Old Oct 1, 2005
  #44  
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Man this is turning into trouble =*( Oh well your still making more power than the d17!! good luck bro!
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Old Oct 1, 2005
  #45  
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hey guys ... I don't know if this means anything ... I don't want to post in the street/track forum because I don't want to get flamed a crapload.

but I was driving in LA yesterday with ponychick (in my car) and there and I there was a blue Mustang Mach1 behind me. We both turned and he punched it next to me ... crazy. He had HUGE tires ... I am guessing 285+, exhaust and a LOUD supercharger... asian guy with a FAT smile on his face when I pulled up next to him.

I was checking his car out and he was revving ... then I saw his tires spinning .. oh ****! the light changed ... I did a hella quick (and bad) "launch" ... he ended up pulling a car off me straight off the line ... but by 75, he had pulled another car and a half... we both shutdown because of traffic ... but I'm surprised that he didn't pull as much as I thought he would. I think I could've taken him at the launch (had I been paying attention).

Either way, for a 400 something hp mach1, I'm rather proud of my little nearly stock 2.0L. I think we would've been even at 75 if I had my CAI, header and hondata. I'm sure with that much power, he'd pull on me eventually anyway, but still ;P

edit: I'm not saying I would be faster than a 400+ rwhp mustang ... I'm just saying that with that particular race, I'd be the better driver.

Last edited by aznboysrfr; Oct 1, 2005 at 12:31 PM.
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Old Oct 1, 2005
  #46  
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^^ i told you that i could have messed with that cobra...

eh... so who is this pony chick, i would have rubb'd it in her face that your civic is faster.. hehe.. jk...

i need lsd!
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Old Oct 1, 2005
  #47  
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Originally Posted by aznboysrfr
ok, first I'd like to start off by saying ... I think there is something wrong with the dynojet that I went to. One of my friend's dyno'ed his k20a3 at the same shop with aem cai, greddy evo2, hondata intake mani gasket and got a best of 126 whp

Ok, well onto mine.

Currently, the only mods I have are 17x7.5" SSR Competition rims, Nextgear intake mani gasket, ep3 AEM V2 intake. I got about 4 pulls in and got a best of 170.39 whp, 118.08 wtq. Temperature was 88 degrees F, Humidity 16%, SAE 1.00 (whatever that means) ... dyno run was a 4th gear pull. The lowest was 163 whp.

We then bolted up the Injen CAI from an rsx type S and after 4-5 pulls, I got a best of 178.43 whp, 123.66 wtq. The numbers never dipped below 170 whp. THIS PROVES THAT HEAT SOAK IS REAL to all you people that believe that SRI's are better than CAI's for HP. For that run, it was 93 degrees F, humidity 13%, SAE: 1.01. 4th gear pull again.

The dyno runs were done with the hood open and 2 large fans simulating driving conditions.

Another note ... today, I checked my spark plugs and realized that they were loose ... almost finger tight. I'm wondering if that also has anything to do with the dyno numbers reading low
Sorry to hear about your numbers bro. I hope you figure out the problem.

BTW...you, Josh and I need to race...
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Old Oct 1, 2005
  #48  
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Originally Posted by quick silver
BTW...you, Josh and I need to race...
what about me...
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Old Oct 1, 2005
  #49  
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Originally Posted by HondaLuver
what about me...
Sure...but you'll beat us all. I am willin to concede to that. Out of the four of us you are making the most power and probably have the lightest car. I'd come in second in power, but last in weight.

You guys find a safe place for us to race and I'll drive up there.

Last edited by quick silver; Oct 1, 2005 at 02:31 PM.
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Old Oct 1, 2005
  #50  
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we all need to go to a track, and my car is not as fast i took my header off
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Old Oct 1, 2005
  #51  
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^^ why? getting a custom? and get kpro! your car will run 300 times better and faster
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Old Oct 1, 2005
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Originally Posted by HondaLuver
^^ i told you that i could have messed with that cobra...

eh... so who is this pony chick, i would have rubb'd it in her face that your civic is faster.. hehe.. jk...

i need lsd!
that guy just sucked at racing ... that's all.

without f/i, none of us could touch an 03-04 cobra ...

quick: I'm always down for a friendly race ;P
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Old Oct 1, 2005
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hehe, lets race for a tank of gas...
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Old Oct 1, 2005
  #54  
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Originally Posted by Drivetofast
we all need to go to a track, and my car is not as fast i took my header off
Josh....with your header on your car still aint as fast as mine.
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Old Oct 1, 2005
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Originally Posted by aznboysrfr
quick: I'm always down for a friendly race ;P
Great...find us a place...or we could all meet at the next event at California Speedway.
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Old Oct 1, 2005
  #56  
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Originally Posted by HondaLuver
hehe, lets race for a tank of gas...
I am already conceding to you beating me, so I aint gonna just throw away money. I will, however, race Josh and ??? for a tank of gas.

BTW...whatz ya name?
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Old Oct 1, 2005
  #57  
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although a tank of gas for my car would be nearly double of anyone here ... no.

I'll race anyone else for a tank of gas ;P

cali speedway, eh? ... hmmmm... anyone have a helmet they can let me borrow? ;P

quick: Derek
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Old Oct 1, 2005
  #58  
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Originally Posted by aznboysrfr
although a tank of gas for my car would be nearly double of anyone here ... no.

I'll race anyone else for a tank of gas ;P

cali speedway, eh? ... hmmmm... anyone have a helmet they can let me borrow? ;P

quick: Derek
Derek...you don't need a helmet for the Speedway unless you are runnin quicker then 14 seconds, which neither you, Josh or myself are gonna run.
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Old Oct 1, 2005
  #59  
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i may not have the hp but i have alot of low end, my 8psi pully is going on as soon as i get k-pro or an ems
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Old Oct 1, 2005
  #60  
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Originally Posted by Drivetofast
i may not have the hp but i have alot of low end, my 8psi pully is going on as soon as i get k-pro or an ems
Nice. I am ready whenever you are.
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