You aught to read the thread about trucks running down mountains in neutral and how fast they get going - will totally change your perception of air drag.

 

Not likely, I make semi regular trips up north and coming back over the grapevine I coast at 80 the last ~2-3 miles before Magic Mountain, and that's in a ~2,600lb car forget about a 10+ ton truck (fully loaded). I've also seen the runaway truck ramps, and the "trucks use low gear" signs. But could you post a link so I can read it.. and probably learn something.

 

As one who has done 85 often and frequently, hows the engine rpms at that speed? Dont think I would want to temp it over 5 grand. I try to limit to 75 tp keep it under 5 grand when taking i95 or i295.

 

manual: 80mph = ~4k

Auto: 80mph = ~3-3.5k

 

DAMN IM SO ____ING PROUD LOL MY TOP IS LIKE ARUND 152-155 NICE HUH? WHEN I HAD THE STOCK ENGINE MY TOP WAS 115 NO OTHER 06 XA CAN GO MORE THAN THAT..THEY HAVE A GOVERNER NO MATTER WHA YOU DO EVEN DOUBLE CLUTCH OR ANYTHING CAN GET YOU FASTER..DO YOU WANT TO REMOVE THAT GOVERNER?WELL THATS ANOTHER FORUM LOL PV ME FOR DETAILS...IM SELLING ANOTHER COROLLA XRS ENGINE WITH ECU AND EVERYTHING YOU NEED..NICE ENGINE I HAVE MINE ON THE XA AND BELIEVE ME ITS FAST!

 

exactly

 

135 gps indicated speed. use to do 110, 115 every day going to work, now i have a tranny van and cant get over 80 lol

 

Watch the caps, man.

 

^^ not to mention, that the limiter is actually at 118 not 115.

 

was just wondering what yalls tachometer is reading at 120. I go to Houston from Tyler TX alot and i run between 85 and 90 and mine usually is about 3500-4000. Also have 17in eneki so that might make a difference

 

Jan06xB
PostPosted: 10/18/07 9:40PM Post subject:
You aught to read the thread about trucks running down mountains in neutral and how fast they get going - will totally change your perception of air drag.

This is true, i drive for coke and on big hill i can put in the clutch and gain 10+ mph over governed speed

 

there is no limiter on either xa or xb

 

I was wondering about that - probably no need for one without more power to exceed the gearing. As for the downhill speed of coasting trucks I can't seem to find the posts but we were talking about air drag and I seem to remember that the trucks were reaching well into the triple digit speeds running down a mountain road . . . scary!

 

i got my 08 b 2 days ago and it will go 118 no problem thats all i took it up to being it was daylight and it was the first day and all i didnt even have to drive it like i stole it

 

That's not the recommended break in proceedure!!

 

then why, when the car gets to 118, does the speed drop a few mph then go back up? seems like a speed limiter/governor to me.

 

hummmm sounds like I need to jack up my front end and with the tires off spin the rotors in 5th gear and see what limitis are reached.

 

from what I've hear, your wheels will go faster than your car. I keep hearing that xBs are drag limited (stock power) to ~110, so off the road, negating any wind, I guess you'll get up no higher than ~118

 

Toyota engineers that wrote the owners manual can't get more than 103 mph out of the car, and they have this 10-mile track to use:
http://www.taisei.com/project_details.asp?ProjectID=43
A good Scion Lifer can do better than that on a public road any day!

 

I heard 106 was the wall by someone that reached it. Judging how fast I got up to 97 without flooring it I think mine would go a little faster - benefits of superior lubrication.