Had car dynoed, NOT happy with results

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Old 12-11-2002, 07:14 PM
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ACTUATOR?
Old 12-11-2002, 07:18 PM
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Originally posted by jimcol711
scalbert, i know sometimes there can be a freak run, but my times were consistant throughout the day...
I wasn't refering to freak runs, but they can occur. I was refering to the differences that can occur and should be noted.
Old 12-11-2002, 07:23 PM
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Originally posted by Nashua_Night_Hawk
R u saying that the Gasket is the source of the 2500-2900 rpms noises.... .....

Should we run to the nearest Acura dealer and order 2 set of Headers Gaskets?
I believe so guys. I don't hear that noise anymore. The car sounds more stock now than it did before. Just a deeper note from the engine is heard. I can't GURANTEE that will fix it, but my gaskets were leaking, and causing noises.

I still wonder if they caused my loss of hp.



Actuator was checked on the dyno. It worked fine.
Old 12-11-2002, 09:35 PM
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I may buy this smoke in a can and spray some over the headers to see if there is any leaks:

Old 12-11-2002, 09:42 PM
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Originally posted by Nashua_Night_Hawk
I may buy this smoke in a can and spray some over the headers to see if there is any leaks:

How does that show leaks? hmmm. Good luck getting that sprayed on the rear with limited room. hehe.
Old 12-11-2002, 09:55 PM
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This can will spray a big " harmless cloud" over the headers if there's any leak while reving... you will see the flow of air gasing out and distoring the cloud... same as in wind tunnel...
Old 12-11-2002, 09:56 PM
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My mechanic at Acura of Memphis insisted on using the OEM J32 gaskets instead of the OBX gasket

There is a definite "resonance" in the exhaust, but not from an
exhaust leak here... 2.25" from resonator, Y, and a pair of magnaflows
Old 12-11-2002, 10:00 PM
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Originally posted by hinrgdj
My mechanic at Acura of Memphis insisted on using the OEM J32 gaskets instead of the OBX gasket

There is a definite "resonance" in the exhaust, but not from an
exhaust leak here... 2.25" from resonator, Y, and a pair of magnaflows
Yea thats why I said, I am not positive if it will fix it. But I noticed alot of noises have disappeared.
Old 12-11-2002, 10:07 PM
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Hrmmm, I didn't have to monitor or question any of this... :P
Old 12-11-2002, 10:10 PM
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the resonance sound definitely comes from under the floor, not from where the headers meet the engine... (at least on my car)
Old 12-11-2002, 10:11 PM
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I guess that the noise is coming from the flex section... with time it is geting more flexibkle hence less noise... or it may leak by itself
Old 12-11-2002, 11:01 PM
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damn, this got me thinkin if i shud buy obx or save up for comptech.

typeR, i agree w/ you fuck dyno's just go to the track

jimmy col, you have to consider the temp differences from your 14.8 to the 14.3, if you go to the track when its 70 ish w/ the same setup i doubt you'll run a 14.3, thats just the truth

and to the one newbie, 260 hp is at the crank, dyno measures power to the wheels, the average auto dyno's around 200 hp and manual @ 220 hp, this is due to drivetrain loss
Old 12-11-2002, 11:20 PM
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Originally posted by hinrgdj
My mechanic at Acura of Memphis insisted on using the OEM J32 gaskets instead of the OBX gasket

There is a definite "resonance" in the exhaust, but not from an
exhaust leak here... 2.25" from resonator, Y, and a pair of magnaflows
Same here, the Mechanic @ Valencia Acura did the same.
Old 12-12-2002, 05:50 AM
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Originally posted by darrinb
wow, thats low

somthing is definantley wrong with that dynamometer
Old 12-12-2002, 08:18 AM
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get an a'pexi v-afc..........tune that air/fuel ratio
Old 12-12-2002, 08:25 AM
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Originally posted by numbaonexstunna
get an a'pexi v-afc..........tune that air/fuel ratio
It appears the ECU alters the A/F ratio at WOT noticeably with changing ECT and IAT values. Unless the VAFC has an ECT input, which it doesn't, you can tune till your blue and will only get the adjustments correct for a certain range.
Old 12-12-2002, 09:12 AM
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this may help in providing a rough estimate??

http://www.speedworldmotorplex.com/calc.htm
Old 12-12-2002, 11:44 AM
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Originally posted by JRock


i never said that j rock
Old 12-12-2002, 11:52 AM
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Originally posted by darrinb
i never said that j rock
I never said you did. I just took your post and added something onto it and put it in italics to make that clear.
Old 12-12-2002, 05:28 PM
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Wow!!! Those fuckin headers suck...

Just fuckin with ya...that is a jacked dyno tho....oh well, go dyno it again now that you have the new gaskets.
Old 12-12-2002, 05:58 PM
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"AUTOMOTIVE STETHOSCOPE, THE DOCTOR'S IN!
Everyone in the office laughed when they saw me head out the door with these things hanging between my ears! A grinding metallic noise, which had puzzled me for weeks, was quickly diagnosed as a faulty smog pump. While I was under the hood, I poked around here and there and could hear all of the valve tappets, intake and exhaust belching, fuel pump, etc. This stethoscope is a fantastic tool; buy it and those around you will really think you've gone off the deep end. Made in the U.S.A.


http://www.griotsgarage.com/search.j...t=+stethoscope

$16.95

Or get some plastic or rubber tubing and a length of thin pipe...
Old 12-12-2002, 06:10 PM
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YEa the guy used it on my car to find the leaks.

Originally posted by EricL


"AUTOMOTIVE STETHOSCOPE, THE DOCTOR'S IN!
Everyone in the office laughed when they saw me head out the door with these things hanging between my ears! A grinding metallic noise, which had puzzled me for weeks, was quickly diagnosed as a faulty smog pump. While I was under the hood, I poked around here and there and could hear all of the valve tappets, intake and exhaust belching, fuel pump, etc. This stethoscope is a fantastic tool; buy it and those around you will really think you've gone off the deep end. Made in the U.S.A.


http://www.griotsgarage.com/search.j...t=+stethoscope

$16.95

Or get some plastic or rubber tubing and a length of thin pipe...
Old 12-12-2002, 06:16 PM
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EricL,

Anyone tired the "Poof" smoke in a can thing to detect leaks...?
Old 12-12-2002, 06:26 PM
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Originally posted by Nashua_Night_Hawk
EricL,

Anyone tired the "Poof" smoke in a an thing to detect leaks...?
Too tired (possibly). Have I tried it or had someone use it that I know. No.

I've been a "fan" of the "home brew" stethoscopes. If the radiator fan(s) are going, that smoke isn’t going to find a few tiny puffs coming out of the exhaust gaskets.

IMO, it might be worth trying for “enclosed” locations where it might be impossible or difficult to get a “probe” into
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