P5 top speed

At that speed you have to take into contideration the accuracy of the speedo.
 
ahhhhh....

This is a good thought KY but then again a questionable one. Why would the speedo be off? Yeah its at high speed but so what????
Peace,
Zane
 
KYREDP5 said:
At that speed you have to take into contideration the accuracy of the speedo.

Actually anything over 140+++mph i think, that's where you really have to take accuracy into consideration. One guy from the base own's one of the fastest car's in the whole valley. It's a 95/96 Dodge Stealth R/T Twin Turbo with Major Upgrades fully modified. Engine is so Freakin sweet and he also supposely has a 300lb stereo system bolted in the trunk with bandpass boxes. I think he ran at Fomoso race track in Bakersfield cali, and hit 11.4@122mph 24psi. Anyway him and his friend decided to see what the real topspeed on his car was, since he has been barrying his idle past 180mph and according to his friends G-tech stat thiny, it posted 170mph. That's like 10-12ish,mph (OFF). But you might be right at certain standard's, the Odometer can be off at speed's of 120+mph.;)
 
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Spedo's are usually off by a pencentage. The higher you go the more your speedo is off.
 
KYREDP5 said:
Spedo's are usually off by a pencentage. The higher you go the more your speedo is off.

The real only way you can make you speedo unaccuate is to either switch out and buy new Smaller or bigger rims/tires, or do some major mofication to the car by the ecu not properly reading right, or both together.
 
tritonheat1 said:


The real only way you can make you speedo unaccuate is to either switch out and buy new Smaller or bigger rims/tires, or do some major mofication to the car by the ecu not properly reading right, or both together.

Or get one of the handy-dandy GPS speedos.
 
here's the breakdown..we can go dumb fast..130 or whatever..i can do it..you can do it...whatever..is it smart?..no? can we do it? yes..lets just end this senseless crap and move on..this isn't a who has the fastest car in the universe competition...but..with a little help of nitrous..your protege..sedan or P5...WILL GET TO 140..BUT..its about as aerodynamic as a stadium..and i wouldn't suggest it..
 
Again the Coefficient of Drag for the P5 is roughly .33

A C4 is around .29

Focus- .33ish

Rx7s-Supras-.29-.33 depending on year and if the RX7 has a aero package or not.

So the P5 is not overally a brick, you do not have to be slim to have a low Coefficient. Instead it is how the air is channeled away from any obtuse surface.

If a mag got atleast 117 then 120 and possibly even 130 is not unreachable. That same mag only got around 219 out of the F1, yet other tests have gotten 230 and now even 249ish.

The P5 just not going to be quick getting up there and also not overally stable.
 
120 may be possible with bolt-ons and lowering, but not stock. And that's more the argument than can I get it to go faster. Sure, with mods I understand 120 is attainable.

If you can increase power by 10% with bolt-ons, you'd be lucky to realize a 3% increase in top speed with drivetrain loss. To increase top speed by 10% you need a 33% increase in horsepower. So you would need almost 160HP out of a P5 to get to 132MPH.

As I stated, unless you have a turbo or are juicin it, 130 is a bit of a stretch for a stock 2.0L Non-MSP Protege/P5. If anyone has pics or videos of their stock (non-MSP) N/A 2.0L doin 130, post em.

As far as speedometers are concerned, they are generally optimistic. The error more noticeable as speed increases. To my knowledge, only police cars etc are calibrated to be exact up to 140MPH and are usaully certiified as accurate. Which is why "pacing" is a legit way for them to get you for speeding. :D
 
Don't forget that air temp and humidity influence a engine's performance.

So if we all did the top end test in the fall versus the summer, then of course a higher top speed is more achievable in the fall assuming there's no speed govenor.
 
i got my MP5 going 125mph going to AutoX so i whouldnt be late, and my friend was going 150mph in his 300ZTT and that was cool.
also i got a WRX going 150 and that was scary:) .
 
SeminoleMan said:
120 may be possible with bolt-ons and lowering, but not stock. And that's more the argument than can I get it to go faster. Sure, with mods I understand 120 is attainable.

If you can increase power by 10% with bolt-ons, you'd be lucky to realize a 3% increase in top speed with drivetrain loss. To increase top speed by 10% you need a 33% increase in horsepower. So you would need almost 160HP out of a P5 to get to 132MPH.

As I stated, unless you have a turbo or are juicin it, 130 is a bit of a stretch for a stock 2.0L Non-MSP Protege/P5. If anyone has pics or videos of their stock (non-MSP) N/A 2.0L doin 130, post em.

As far as speedometers are concerned, they are generally optimistic. The error more noticeable as speed increases. To my knowledge, only police cars etc are calibrated to be exact up to 140MPH and are usaully certiified as accurate. Which is why "pacing" is a legit way for them to get you for speeding. :D


Um Okk yahh... a (Non-MSP) You want a N/A 2.0L doin 130, post em. If you know Linuxracer and SMP3000, then i'm sure they could answer and solve the Problem to this situation. Smp3000 has taken a Picture of his MP3 going 142mph and linux has gone there 2 with his car Stock. "where is Linux when we need him:o :(
 
Linux did the FS-ZE motor swap some time back. He actually spoke with my brother Jeremy who did the Sport20 conversion complete with the FS-ZE motor over three years ago. My brother Jeremy actually had the first street (non-racing aplication) FS-ZE swap in the country. So believe me when I say I know about these cars.

The FS-ZE is hardly the stock N/A 2.0L. We also have another friend (by the name of Jeremy) that did the FS-ZE swap and dynoed at 130WHP and 130+Lb/Ft. That is versus 100-108 from some of the dyno runs I've seen posted elsewhere on the site for the P5. ES ,DX, and LXs will all be in the same range.

To my knowledge, Linux is going to be goin turbo, so if the power is right, he'll be gear limited. I'm glad that this post has stirred some attention. I just find it hard to dispute math, physics, and some of the controlled top speed testing done by various publications. I love the Protege lineup, but am gonna question anything that seems BS. We don't need the whole forum sounding like a kill in someones BS racing stories.
 
well..bottom line, i know how fast i've gone in my car regardless of what you think. Your fuzzy math and physics aren't exactly 100% correct in a real world application. But 130 in my DX is perfectly atainable on a daily basis given the right road, with juice or without..besides, juice on top of the gear doesn't do a god damn thing except for bleed into the purge and sets of my air/fuel ratio warning. And I know my DX runs in at 125HP/129lb-ft because my ford dealership also sells SVT's and they have a dyno and they did it for free when I picked up the car. I'm working on a top speed video right now..
 
you can say whatever you want to say but physics is a sure thing.....don't start going off about real world application because that is EXACTLY what physics is....
i don't buy for a second that a stock P5 can be doing 130. i just got back from a road trip and hit 112 and i was pushing it for about a mile it may of had another 2-4 mph but it would have taken a couple miles to wring it out.....yeah i know that utah is high elevation and all but i doubt you are going to be able to hit 130 just with an elevation change...
as a couple people said: speedo's aren't accurate at high speeds. if you are going to make a top speed video you better be breaking out a stalker radar gun...then i might believe all of this crap.
 
(werd) For Shizzle!!! From the video I saw, it looked as though Pro 5 was doing 120MPH when the motor let go, albeit under pressure. Like I said, with a properly tuned turbo, I'll buy 130MPH and more.

And I know my DX runs in at 125HP/129lb-ft because my ford dealership also sells SVT's and they have a dyno and they did it for free when I picked up the car.

And you do realize that in order to dyno 125HP and 129lb/ft at the wheels you would have to claim an astounding 150HP and 150lb/ft at the crank in a N/A 2.0L? Don't get me started with this one. :D
 
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