127mph top speed?

[SHOguy 92]

i don't understand it the thing 1st through 3rd gear is just awsome running about 95 to 97mph 1/4's like it should but then 4th is just oki gets up there you know 127mph and then 5th is even worse just dead goes right down to about 120mph and don't get any fast what is with that? i need help.
Thanks
Josh

 

[SHO--ripper]

What year is your car? Is it an MTX or ATX?

 

[TimboSHO]

If he has a 5th gear, it's gotta be a MTX. thumb

 

[Machspeed]

Your in 5th at 127? Thats your problem.

 

[TimboSHO]

What's wrong with 5th at 127?

<small>[ September 11, 2003, 12:44 AM: Message edited by: TimboSHO ]</small>

 

[HopefulSHO]

Dosen't 4th wind out to around 138 or 140?

 

[Machspeed]

Its a gas gear. The car pulls so much harder in 4th. I think 4th redlines at 143.

 

[Dr.Evil]

I think 4th redlines at 143

So 5th won't pull at all w/ 4th redlined?

 

[NotSoSlowSHO]

nope...

unless you are going down hill with a STRONG tail wind

 

[Machspeed]

Exactly, thats why the sho top speed is 143. Thats when 4th ends.

 

[SHOguy 92]

hey whats with the argueing about 4th hear and 4th is suppose to end at 137mph but my cars screamin at 127 and still 4th seems a little sluggish its self i mean next time its like 2am and im on the freeway i guess im gonna really push 4th hard ut 4th ends at 137 and 5th ends at 143. but if anyone has suggestions that would help, thanks

 

[sdpatt]

There are many unquantifiable variables when using top speed to determine the engine's output. The only way to know whether or not the engine is healthy and generating the required power is to strap it to a dynomometer. You can only judge changes in power by comparing top speeds on the same road with the same wind speed, the same wind direction, the same air temperature, the same humidity, the same barometric pressure, the same load in the car, the same gear, the same tire pressure.... You get the idea.

At this point I will ask you what the status of your car is. How many miles on the odometer? How many miles since the last valve gap adjustemnt, new set of spark plugs, plug wires or timing belt? Has the CHECK ENGINE light illuminated? Have you checked the EEC codes?

Since the SHO engine's power peak is around 6,000 rpm, to obtain the quickest acceleration or fastest road speed you would want to keep the engine's revs as close to that number as possible.

 

[SHOguy 92]

hey in fact lately very seldom the check engine light does come on not even once a day sometimes it'll just come on for a min or 2 then its gone and it don't happen for another like few weeks. i don't know how to check error codes either. also my cars engine is relativly new with 50,000 on it the car has 167,000.

 

[sdpatt]

See those links at the bottom of my signature? Please click on them.

 

[shobikes]

And really, guys - isn't 127 fast enough? I mean - that's like 2 miles a minute, and who needs to get there that fast?

 

[masho95]

shobikes:
And really, guys - isn't 127 fast enough? I mean - that's like 2 miles a minute, and who needs to get there that fast?

There's no such thing as "fast enough".

 

[svtman]

Don't trust your speedometer (or tach) either - they can be notoriously innacurate for determining top speeds. My new 1999 Contour SVT's speedomenter was showing FAST by 8kmph at 100kmph (8% error). The dealer fixed it for free but then I understood why it was so easy to get it up to 240....

 

[SHOguy 92]

shobikes how could you say "like 127 isn't fast enough" you own a SHO how fast have you gone? if everyone on these boards wanted a slow car we would have bought an import LOL

 

[SHO SPD]

When I had my 89 past 140 I was in 5th gear, and accelerating, so whoever said you wont accelerate is not accurate. I wound out 4th, shifted into fifth at about 137, and took it all the way to about what would LOOK like I was at 150, if the speedo continued. So, I wouldnt shift into 5th at 127, the rmps are still too low to have maximum torque.

 

[shobikes]

SHOguy11:
shobikes how could you say "like 127 isn't fast enough" you own a SHO how fast have you gone? if everyone on these boards wanted a slow car we would have bought an import LOL

c'mon - it was A JOKE! I don't really care what the TOP speed is; I get my jollies in the curves - the SHO is PERFECT for 90-100 mph sweepers like I-40 from here to the TN border! I can also run the BRP (Blue Ridge Parkway) with the speedo mostly stuck on 60...

I love this car!