ThatPreludeGuy

I know this is going to come across bad but you might want to rethink your mods. I know you said you had some heavy 18's on the car but those numebrs are STOCK numbers. I'd be willing to bet more then a few people here have surpassed those numbers in their stock form. I don't know what your proof is that OBDII is affecting your performance but something is. If you switched to stock rims/tires and used a CAI instead of that under the hood you should be able to hit mid to high 170's if not 180.

Ludakris_SH

yes I know the intake doesn't help it hurts, but it looks good at shows. I had better numbers on factory wheels with the intake and a custom 2.25" pipe and dynomax muffler. The wheels hurt it real bad. Also every dyno is a little different. Also unlike some others I make my pulls in 4th so the guy who did the 3rd gear pulls will show better numbers. As for checking my mods over. Don't worry about me. I'm starting to be sorry I showed everyone this dyno. I guess you can pic at if you want. I am in the process of ordering a custom Turbo kit. So if you have better stock numbers in a 3rd gear pull. Give me some time and bring it on. Also this is done in Florida and the ocean was about a football feild away. Humidity is a big power killer. I don't now how well the corrected numbers come out.

ThatPreludeGuy

I know that humidity and heat play apart but I'm still not sure what your dyno PROVES about OBDII hurting mods. With a header, intake,and pulleys I pulled 170-172 hp over three runs. I'm CERTAIN my car had less then that stock so OBDII hasn't hurt my mods. I'm just trying to understand what your dyno runs prove about OBDII. Also on my dyno just after 5200 RPM's is where my torque jumps dramatically. I don't know about the rest of the 5th gen guys but I'm certain that's where my VTEC comes on.



I guess from looking at it the VTEC does hit before 5000RPM's but like you said on our factory tach it's almost perfectly at 5200. As for the cross-over I agree with you the dyno DOES NOT lie!

[This message has been edited by THATPRELUDEGUY (edited March 27, 2001).]

[This message has been edited by THATPRELUDEGUY (edited March 27, 2001).]

Ludakris_SH

I don't get what you don't see. Most people lost power on the second run. The car gets hot and it's not really moving through the air. The little fan is not enough. I reset my ECU and gained power across the entire range. How does this not show that the mods were dialed out by the ECU? As for my low HP I guess my car just sucks. I'll deal with it. I'm glad your car is faster. Ask the guy I just killed in his base prelude what he thinks about my performance. We both had two people and I have a spare and a spare rim in my trunk. Plus my body kit adds weight and the 18's don't help. I have some other crap in it also. Plus the NSX brakes and legend calipers are heavier than stock. He had an intake and exhaust with factory rims and I after market wing. I left him and that is all there is to it. I guess here in FL we have ****ty dynos I don't know, but I thought this was the smarter board. I guess there are people every where that have there moments though. Tell me how would you test if the ECU hurts mods?

Joon525

ECU swap and a dyno.

ThatPreludeGuy

MOST people....all I'm saying is that you gained a WHOPPING .6hp over your first run...just because OTHER people lost 2-3 does NOT mean you gained it by NOT losing it!
Depends on the time between runs...5 minutes or 15 is a big difference no matter how little the fan does.

Quote:

<font face="Verdana, Arial" size="2"> I reset my ECU and gained power across the entire range. How does this not show that the mods were dialed out by the ECU?

What's to say it was resetting the ECU? In all honesty couldn't it have been anything else? Maybe the outside temp drop 2 degrees, or the humidity came down a bit, for the difference that was made it doesn't look like any real proof to me. You think what you think and I think what I think that's all. If you were showing me a A/F graph showing how the A/F was corrected for before and after resetting the ECU that would be pretty solid evidence.

Quote:

<font face="Verdana, Arial" size="2"> As for my low HP I guess my car just sucks. I'll deal with it. I'm glad your car is faster. Ask the guy I just killed in his base prelude what he thinks about my performance. We both had two people and I have a spare and a spare rim in my trunk. Plus my body kit adds weight and the 18's don't help. I have some other crap in it also. Plus the NSX brakes and legend calipers are heavier than stock. He had an intake and exhaust with factory rims and I after market wing. I left him and that is all there is to it. I guess here in FL we have ****ty dynos I don't know, but I thought this was the smarter board. I guess there are people every where that have there moments though. Tell me how would you test if the ECU hurts mods?

And what does that have to do with anything I've said? This is the "dumber" board for asking questions? I could care less how fast your car is I'm just pointing out that your PROOF is more speculation then proof and there are some newbies that will take your word just because you SAY it's proof.

Ludakris_SH

Ok then why don't you go prove it. The time of each run is on the dyno and no the temp didn't change. No clouds in the sky. The car was sitting for 15 sec off while I reset the ECU. I took less time to get to my second than most of the cars that went on the dyno those two days. I watched several cars run like 50 of them. I even watched a 5th gen have lower numbers on the second run before my car got to the dyno. I guess I should have reset his ECU also.

How would changing the ECU help? If you change the ECU on a modded car and you get gains then that ECU could be better programed. The only way that would work is to do a dyno run of the car at first. Then you would have to install the mods and do another run. Then you would have to drive the car around so the ECU could addapt. Then you dyno again to see if you lose anything. If you just swap the ECU you don't know anything other than the new ECU works better or worse on the car. As for me gaining .6HP How much do the mods help in the first place. It's not like you get 5HP for a header. Well we will never know because nobody here goes to a dyno often enough to try a before and after run. Oh by the way I'm just blowing smoke up your skirts. My entire reason to come here and post this was to make you believe something that doesn't happen. I normally don't care, but this time go prove me wrong or shut your trap.

ThatPreludeGuy

Dude your obviously right!

BTW the "smarter" board seemed to have their share of the same questions we did. Glad to see I've pissed you off...makes me feel better

Joon525

Alrighty then.........this is obviously over.
This isn't a flame forum. We'll let people come to their own decisions from what's posted here.



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AOL IM: Joon525

Joon525@Honda-Acura.net