S2000 ap2 prob
Joined: Mar 2008
Posts: 12,208
Likes: 13
From: Atlanta, Ga
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.
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.
1.) WIth all those mods, you lose power if you do not tune the car's ecu. Popular marketig schemes make you think bolt-ons create a ridiculous amount of power.... Usually goes something like "Intake 8whp + header 10whp + TP 5whp = what, like 23whp extra!!!" <---- **buzzer** WRONG! Tune it and the extra air flow those mods create will actually be useful.
2.) Have you accidentally pushed the kmh/mph button without switching it back again? That could be a crucial difference...
Good luck man, if worse comes to worse, take it to a shop and have them deal with it...
Registered User
Joined: Feb 2010
Posts: 226
Likes: 1
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.
Yes, aviation is quite a bit different, but some principles apply in this regard.
You are clueless. For the last time, RPM @ speed is constant. Your maximum speed per gear does not change with heat or cold. Do you think gears magically grow teeth when it's warm out? By your theory, simply adding horsepower will raise your maximum speed in each gear. This will only increase how fast you reach the maximum per gear.
I was calling YOU a troll for trying to apply aviation/marine engine rpm/speed theory to a car with physical tires on the ground. Fluid dynamics to not apply in this case!
Why do you think everyone else is quoting you and saying you're wrong?
The ONLY way to change minimum or maximum speed in a particular gear is to change the gear ratios/final drive/tire size/engine redline. Temperature is not a factor, as much as you believe it to be.
Registered User
Joined: Nov 2003
Posts: 1,729
Likes: 4
From: Magnolia, TX
OK, I got a chance to do a couple of 4th gear pulls yesterday with an OAT of 95F-99F...not sure about the road temps. It looks like my dyno done 7 1/2 years ago wasn't that accurate wrt to RPM/MPH. The car is still stock, but I think the RE-01R 215/45/17 255/40/17 instead of the OEM RE 050 215/45/17 245/40/17 might have a slightly greater diameter.
My Actron scanner readings were as follows:
First pull
RPM 7911 IAT 145F MPH 100
RPM 8021 IAT 145F MPH 99 (shifting to 5th)
Second pull
RPM 7845 IAT 144F MPH 99
RPM 7962 IAT 144F MPH 101
RPM 7937 IAT 142F MPH 99 (shifting to 5th)
As you can see, I was wrong about atmospherics affecting the RPM/vehicle speed relationship.
It's not the first time that I've been wrong, and probably not the last!
I don't think I'm a troll (not sure what that is). But if I am, I appologize.
My Actron scanner readings were as follows:
First pull
RPM 7911 IAT 145F MPH 100
RPM 8021 IAT 145F MPH 99 (shifting to 5th)
Second pull
RPM 7845 IAT 144F MPH 99
RPM 7962 IAT 144F MPH 101
RPM 7937 IAT 142F MPH 99 (shifting to 5th)
As you can see, I was wrong about atmospherics affecting the RPM/vehicle speed relationship.
It's not the first time that I've been wrong, and probably not the last!
I don't think I'm a troll (not sure what that is). But if I am, I appologize.
