Its one for a pda, not sure on model, but car under serious acceleration is loads faster than the gps can keep up.

Surely you can get em better and quicker to up date but this proved to be too much whilst recording speed.

Hit 135 at the peak, was in 4th about 6000 but then i slowed down it went up some more and then dropped so not sure on accuracy.

On steady build ups it did roughlly this, as u can appreciate its hard to look at it to be precice so at 4k in 5th tho it read 100 and 4450 was 110 and 4900 was 120...

Can anyone check with bernies calculator to see how accurate this is please......

 

I will be putting my GPS unit in Karls 3DR for a 200mph,photo evidence run

 

i know the speed is 100% perfect but accuracy at speed is not as it can't keep up like LOL

be good to see if in 5th his calulator is right....

 

mine's always a tiny bit out, the GPS normally reads about 5 mph slower, is this correct?

 

The 3 5th gear readings are quite consistent:-

25 mph/1000 rpm
24.7
24.49

What is your rev limit? Have you pulled it?

 

the GPS should be perfect mate, if the device being used can keep up with the speed of the car as far as i understand it all.

 

I think GPS is as accurate as you will get

 

rev limit is 7600 soon to be 7800 and have pulled 7150 on pectel but never had gps in car then

 

so it'll be the vauxhall speedo that's out then

 

7150 = 178mph
7800 = 195

EDIT to say based on the numbers above not the calculator...

 

GPS is pretty damn accurate and only hindered by your devices refresh rate as far as im aware

 

guys just watch what youre sayin as we know for fact the majestys finest deffo watch this forum now

i trust all this was on private land

not tryin to be stick in mud but just gotta watch how we say things i spose now

 

Nah, he's only bragging - it's all bullshit

 

During hard acceleration or harsh braking it can be left a behind a little.

 

 

Peteh;
Nearly all the vehicles i have driven have shown 5 mph more than my gps road angel.

 

good good

 

Dingy - will take a couple of seconds to update - so u need to be at a constant speed for this time - then it's accurate to 0.1ms lol

My S2 speedo is about 4mph too slow, (doing 84 when showing 80 cos ive changed the speedo), normal s2 is about 4mph fast at 70.

 

civilian GPS systems update every second. You won't get better unless you ask the army if you can borrow theirs afaik.

 

cool, i was hoping someone would put me out my misery.

 

was on the short test track on my mates farm LOL

Plus i got no recorded proof i was doing that speed, cause we never had camera.....

Will take pictures at some low rev's in 5th so its legal on road LOL

well bernies spreadsheet said 177.2mph so its not far off....

Well there is proof enough that its got its tops speed

Thats all i need.

 

Dingy

IF you want to i can let you use my street pilot it has 1sec refresh so as long as you hold the speed for a second or 2 it will tell you the speed

and

Its GOT PEAK SPEED RECALL so once we stop i can take digi pic of it to post if you like and GPS is proof enough for me of a cars speed etc

Nige

 

nige, need to do it on brunters LOL

maybe on the 14th aug LOL

 

nice one ding

 

I saw a cool 177mph on GPS in the Escort Once

 

GGGWAAAAAAAN CLAW

well andy thats perfect for ding then, should work a treat

 

fooook u matt

i aint doing top speeds again, think its time for a close ratio box now

 

 

i remember reading about that was it on the way to margam?

 

close ratio box is the way forward for the gardens pal