S2000 Engine Management Engine management topics, map and advice.

S2000 ap2 prob

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Old Sep 1, 2011 | 03:17 PM
  #21  
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Originally Posted by INDYMAC
Thanks for the graph TrboLag. It is a useful ballpark tool, and is probably very accurate on a standard day. But reality is reality, and that's all I'm here to report about. Here is a dyno I did not too long after I bought my car. I had three pulls done in 4th gear to rev limiter. The car was completely stock with about 3K miles on it (still had OEM engine oil fill). At 8033 RPM it was doing 93 MPH. There was no fan blowing the engine cool in the garage, and I actually don't know which pull this was (but I think it was the 2nd pull with the highest horsepower number).

https://www.s2ki.com/s2000/gallery/image/379953-dyno-1/

This is the type of performance I see in the Texas heat with the AC on. But come fall and winter above 40F, I have no trouble reaching 99-100 MPH in 4th gear.

Trust me, I'm not trying to misdirect anyone here. I'm just trying to correlate some physics to the phenomenon expressed by the OP.

I also spent 24 years as a Naval Aviator flying P-3C Orions. I still have my NATOPS manual, so if anyone wants me plug in some numbers for aircraft performance, I'll see if I remeber how.

INDYMAC - you do realize that the dyno evidence you posted shows nearly 1,000 RPM difference, accounting for the 11mph difference between your runs? Once again, RPM and speed in a gear ARE CONSTANT. Your application of theory on an airplane does not translate to a car.

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Old Sep 1, 2011 | 05:32 PM
  #22  
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Originally Posted by INDYMAC
Thanks for the graph TrboLag. It is a useful ballpark tool, and is probably very accurate on a standard day. But reality is reality, and that's all I'm here to report about. Here is a dyno I did not too long after I bought my car. I had three pulls done in 4th gear to rev limiter. The car was completely stock with about 3K miles on it (still had OEM engine oil fill). At 8033 RPM it was doing 93 MPH. There was no fan blowing the engine cool in the garage, and I actually don't know which pull this was (but I think it was the 2nd pull with the highest horsepower number).

https://www.s2ki.com/s2000/gallery/image/379953-dyno-1/

This is the type of performance I see in the Texas heat with the AC on. But come fall and winter above 40F, I have no trouble reaching 99-100 MPH in 4th gear.

Trust me, I'm not trying to misdirect anyone here. I'm just trying to correlate some physics to the phenomenon expressed by the OP.

I also spent 24 years as a Naval Aviator flying P-3C Orions. I still have my NATOPS manual, so if anyone wants me plug in some numbers for aircraft performance, I'll see if I remeber how.
Is this real life?

let me pinch myself.. (ow)


omfg. HAHAHAHA
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Old Sep 1, 2011 | 06:49 PM
  #23  
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I can't tell if this is for real or not lol. Max rpm in a gear will ALWAYS be the same exact speed unless gearing, tires or redline are changed.
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Old Sep 1, 2011 | 07:06 PM
  #24  
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This could be an elaborate troll

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Old Sep 2, 2011 | 03:11 AM
  #25  
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Originally Posted by TheSteel
Originally Posted by INDYMAC' timestamp='1314913915' post='20936044
Thanks for the graph TrboLag. It is a useful ballpark tool, and is probably very accurate on a standard day. But reality is reality, and that's all I'm here to report about. Here is a dyno I did not too long after I bought my car. I had three pulls done in 4th gear to rev limiter. The car was completely stock with about 3K miles on it (still had OEM engine oil fill). At 8033 RPM it was doing 93 MPH. There was no fan blowing the engine cool in the garage, and I actually don't know which pull this was (but I think it was the 2nd pull with the highest horsepower number).

https://www.s2ki.com/s2000/gallery/image/379953-dyno-1/

This is the type of performance I see in the Texas heat with the AC on. But come fall and winter above 40F, I have no trouble reaching 99-100 MPH in 4th gear.

Trust me, I'm not trying to misdirect anyone here. I'm just trying to correlate some physics to the phenomenon expressed by the OP.

I also spent 24 years as a Naval Aviator flying P-3C Orions. I still have my NATOPS manual, so if anyone wants me plug in some numbers for aircraft performance, I'll see if I remeber how.

A shining beacon for the armed forces right here.
Thanks Steel. I'd do it all over again if I could!
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Old Sep 2, 2011 | 03:26 AM
  #26  
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Originally Posted by TrboLag
Originally Posted by INDYMAC' timestamp='1314913915' post='20936044
Thanks for the graph TrboLag. It is a useful ballpark tool, and is probably very accurate on a standard day. But reality is reality, and that's all I'm here to report about. Here is a dyno I did not too long after I bought my car. I had three pulls done in 4th gear to rev limiter. The car was completely stock with about 3K miles on it (still had OEM engine oil fill). At 8033 RPM it was doing 93 MPH. There was no fan blowing the engine cool in the garage, and I actually don't know which pull this was (but I think it was the 2nd pull with the highest horsepower number).

https://www.s2ki.com/s2000/gallery/image/379953-dyno-1/

This is the type of performance I see in the Texas heat with the AC on. But come fall and winter above 40F, I have no trouble reaching 99-100 MPH in 4th gear.

Trust me, I'm not trying to misdirect anyone here. I'm just trying to correlate some physics to the phenomenon expressed by the OP.

I also spent 24 years as a Naval Aviator flying P-3C Orions. I still have my NATOPS manual, so if anyone wants me plug in some numbers for aircraft performance, I'll see if I remeber how.

INDYMAC - you do realize that the dyno evidence you posted shows nearly 1,000 RPM difference, accounting for the 11mph difference between your runs? Once again, RPM and speed in a gear ARE CONSTANT. Your application of theory on an airplane does not translate to a car.

I don't know, but the way I read this dyno 8033 RPM= 93 MPH on this day. I was the only AP2 there that day. Most of the AP1 owners there had never seen one. I'll hook my scanner up the next couple of times I get out for a drive and see what it says. When the weather cools in the fall, I'll do the same again and post some more numbers.

Yes, aviation is quite a bit different, but some principles apply in this regard.
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Old Sep 2, 2011 | 03:29 AM
  #27  
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Originally Posted by TrboLag
This could be an elaborate troll

After checking the profiles of the guests on this thread, I'd have to agree!
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Old Sep 2, 2011 | 05:46 AM
  #28  
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THIS IS 4 REAL GUYS! I SWEAR TO GOD!

How can a stock ap2 beat me? if I have all those mods!

And my clutch is like 5 months old, I've changed the flywheel to an ap1. And then i was hitting 100 KMH REDLINE!


But now it's 93, and keep lowering!

Don't know what else to do with the car. I've done EVERYTHING! but nothing seems to work out.
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Old Sep 2, 2011 | 06:17 AM
  #29  
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Originally Posted by johnys2k
THIS IS 4 REAL GUYS! I SWEAR TO GOD!

How can a stock ap2 beat me? if I have all those mods!

And my clutch is like 5 months old, I've changed the flywheel to an ap1. And then i was hitting 100 KMH REDLINE!


But now it's 93, and keep lowering!

Don't know what else to do with the car. I've done EVERYTHING! but nothing seems to work out.
Sell the car or pay a dealer to fix it. You obviously don't understand mechanical gearing principles as your speed / rpm can't change on it's own. A so called mechanic told you a dowel pin is being "hammered" by a valve and you continue to look elsewhere, wouldn't that set off alarm bells somewhere?.
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Old Sep 2, 2011 | 06:21 AM
  #30  
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Originally Posted by INDYMAC
Originally Posted by TrboLag' timestamp='1314932790' post='20936954
This could be an elaborate troll

After checking the profiles of the guests on this thread, I'd have to agree!
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