top speed
10-01-2016, 11:04 AM
#1
15000
Thread Starter
top speed
Hi guys, a friend of mine has a 2wd sapphire cosworth, soon to be running 480bhp, he thinks he will hit the 200mph mark?!! Ive told him he is a dreamer, he is only on a standard box
10-01-2016, 11:07 AM
#2
Regular Contributor
Your friend seems the King of exaggeration, what's the spec of the car? T3 803s no doubt lol.
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Mark Shead (11-01-2016)
10-01-2016, 11:19 AM
#4
Ben
Considering it took Rod well over 800 (if I remember correctly) to hit 206, I think you're somewhat correct in thinking he's a dreamer!
10-01-2016, 11:22 AM
#5
10K+ Poster!!
Not going to get anywhere near that with 480bhp, mid to high 170s.
10-01-2016, 11:39 AM
#6
PassionFord Post Whore!!
Mark
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10-01-2016, 12:00 PM
#8
10K+ Poster!!
10-01-2016, 12:16 PM
#10
10K+ Poster!!
Cool cheers!
10-01-2016, 02:25 PM
#11
PassionFord Post Whore!!
He must be taking the piss out of you !! It will never do 200 mph unless its dropped from underneath a helicopter from 15,000 feet !! Tell your friend to get in the real world!
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10-01-2016, 05:12 PM
#13
If u think that's bad I was talking to a lad recently with a old civic with a turbo botched on it, looks like it was built on scrap heap challenge, he asked me how fast my car does up the local duel to the first bridge, I said around 150, he said that all my civic does 200. Lol
10-01-2016, 05:17 PM
#14
cossie fan (unluckerly)
If u think that's bad I was talking to a lad recently with a old civic with a turbo botched on it, looks like it was built on scrap heap challenge, he asked me how fast my car does up the local duel to the first bridge, I said around 150, he said that all my civic does 200. Lol
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lee2cossies (10-01-2016)
10-01-2016, 05:41 PM
#16
Advanced PassionFord User
If u think that's bad I was talking to a lad recently with a old civic with a turbo botched on it, looks like it was built on scrap heap challenge, he asked me how fast my car does up the local duel to the first bridge, I said around 150, he said that all my civic does 200. Lol
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lee2cossies (10-01-2016)
10-01-2016, 05:59 PM
#18
Happily retired
If he has a genuine 480bhp & holds it at the topend & the gearing is correct then 180 might be possible. My old girl managed 183.3mph back in 2002 with I guess around 490bhp but the gearing was spot on. Ive seen a 540bhp car run 179mph because his gearing was a mile out. For 200mph you will need 720bhp to be sure but again with correct gearing. Our un-official 210mph was achieved with circa 840bhp in 2005.
A 400bhp Cossie is amongst the fastest cars ever ive heard that many times so one with 480bhp must be able to exceed 200mph surely, that's the way they think. It does no harm so he is best left with his dreams.
A 400bhp Cossie is amongst the fastest cars ever ive heard that many times so one with 480bhp must be able to exceed 200mph surely, that's the way they think. It does no harm so he is best left with his dreams.
10-01-2016, 06:52 PM
#20
10K+ Poster!!
Believe Bruce Read's RS500 still holds it at 191.6mph. 540bhp plus 75bhp nitrous.
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Staffi (10-01-2016)
10-01-2016, 06:53 PM
#21
PassionFord Post Troll
So in reality 'only' 20mph away from the truth? I know every mph is hard to achieve at high speed though.
10-01-2016, 07:01 PM
#22
10K+ Poster!!
Ye probably only 20mph. But that 20mph will take an extra 300 horses.
10-01-2016, 07:15 PM
#24
Happily retired
True 183 took 490bhp & 210 840bhp. That 27mph taking an extra 350bhp. If we go with 940 next time we will struggle to get to 215mph it simply takes so much more Power in a set distance which gets shorter because you have to brake earlier. Would settle for around 212mph. Get this guy to join a Cossie team at a Vmax that may be arranged next year on another Forum.
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gjh (10-01-2016)
10-01-2016, 07:22 PM
#25
10K+ Poster!!
27mph with 350 more horses, mad aint it! Hope you get your 212 Rod!
10-01-2016, 08:26 PM
#27
10K+ Poster!!
10-01-2016, 08:27 PM
#28
cossie fan (unluckerly)
10-01-2016, 10:02 PM
#30
Happily retired
Mark Shead Sapphire - 206.1mph
Rod Tarry Sapphire - 201.3mph
Martin Hadland Escort V2 -200.2mph
Martin Hadland Escort V1 - 194.7mph
Dave Moss Escort - 194.2mph
Bruce Reid RS500 - 191.6mph
Euan Begbie Sapphire - 188.1mph
It suggest Euan had 570bhp ish on that run.
Last edited by Rod-Tarry; 10-01-2016 at 10:05 PM.
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11-01-2016, 09:43 AM
#31
Rod, these top speed cars are they just altering the gearing by different size tyres or crown wheel and pinion? Just interested to see what mine would do top speed with standard t5 ratios, supra diff and 225/35/18 tyres, around 550hp + 100 shot of gas.
11-01-2016, 11:28 AM
#32
Why would it not reach 200 mph? The fact that Rod's car needs more than 800 BHP to reach over 200 mph within a relatively short distance is no prove it can't be done with less power over a much longer distance.
Apparently an E60 M5 can do about 205 mph if it's unrestricted and has 507 bhp. I wouldn't expect the total drag of the E60 to be much less than a sapph. At least the frontal area will be bigger, which compensates for the drag coefficient which is probably lower on the E60. So with 27 bhp less you should be able to at least come very close to 200 mph in my opinion.
Apparently an E60 M5 can do about 205 mph if it's unrestricted and has 507 bhp. I wouldn't expect the total drag of the E60 to be much less than a sapph. At least the frontal area will be bigger, which compensates for the drag coefficient which is probably lower on the E60. So with 27 bhp less you should be able to at least come very close to 200 mph in my opinion.
11-01-2016, 12:05 PM
#33
Happily retired
Why would it not reach 200 mph? The fact that Rod's car needs more than 800 BHP to reach over 200 mph within a relatively short distance is no prove it can't be done with less power over a much longer distance.
Apparently an E60 M5 can do about 205 mph if it's unrestricted and has 507 bhp. I wouldn't expect the total drag of the E60 to be much less than a sapph. At least the frontal area will be bigger, which compensates for the drag coefficient which is probably lower on the E60. So with 27 bhp less you should be able to at least come very close to 200 mph in my opinion.
Apparently an E60 M5 can do about 205 mph if it's unrestricted and has 507 bhp. I wouldn't expect the total drag of the E60 to be much less than a sapph. At least the frontal area will be bigger, which compensates for the drag coefficient which is probably lower on the E60. So with 27 bhp less you should be able to at least come very close to 200 mph in my opinion.
The Fastest Speed by a Sierra is 211.4mph by a Merkur in the States. It had 600bhp & took 5 miles to reach that speed with aero aids. The longest straight that the public can use in the UK is Woodbridge or Bruntingthorpe both around 1.7 miles long including stopping. The Veyron took 7 miles to reach its max so unless you state a distance these Topspeeds mean nothing for comparison. Its why in the UK the fastest speed records are recorded at 1.5 miles at events like Vmax. If you think of doing this on the road think again even in mine getting over 195mph is very difficult a motorway gets very narrow at that speed so where is this guy going to prove it can do 200mph. Im interested.
11-01-2016, 12:19 PM
#34
10K+ Poster!!
Exactly, as Rod said, it may have a theoretical top speed of 200 (the Ferrari F40 is quoted at 478bhp and has a top end of 201) but if you need 5 miles to do it then what's the point really? You'll never find a 5 mile straight.
11-01-2016, 01:15 PM
#36
10K+ Poster!!
I have driven some pretty powerful cars on race circuits and even with long straights it was very rare to see anything over 150mph as there just isn't the room, at 150 mph you are covering a lot of ground very quickly so run out of the space for the next 5mph. Only somewhere like the 'ring can you keep it pinned for long on the last straight but people use this as a cool down to save the car.
11-01-2016, 01:30 PM
#37
Happily retired
This is the reason most fail at Brunters its one thing having 500bhp at the start but a totally different game having it 30 secs later. Heard tales of 100deg Charge air temp & car simply failing to accelerate as there ECU retarded ignition to keep engine safe. Think Mark may have made it all look easy but the hours we spent on each aspect of Topspeed running is why the record has survived. 167mph was our first Topspeed run & the second 174mph at totb with both having Charge Air problems do you remember those days Mark.
Last edited by Rod-Tarry; 11-01-2016 at 01:31 PM.
11-01-2016, 01:33 PM
#38
The Fastest Speed by a Sierra is 211.4mph by a Merkur in the States. It had 600bhp & took 5 miles to reach that speed with aero aids. The longest straight that the public can use in the UK is Woodbridge or Bruntingthorpe both around 1.7 miles long including stopping. The Veyron took 7 miles to reach its max so unless you state a distance these Topspeeds mean nothing for comparison. Its why in the UK the fastest speed records are recorded at 1.5 miles at events like Vmax. If you think of doing this on the road think again even in mine getting over 195mph is very difficult a motorway gets very narrow at that speed so where is this guy going to prove it can do 200mph. Im interested.
Whether the engine stays together and keeps the power up for such a long distance is even something else. But back on the original question, with enough distance and an engine delivery the 480 bhp long enough I don't think 200 mph is that overestimated. In theory (what it is to me) it's no more than power vs. drag.
11-01-2016, 03:16 PM
#39
Happily retired
The fact that 200 mph is very fast and quite dangerous and therefor difficult to test doesn't mean that the definition of topspeed is suddenly different. The Veyron reaches 253 mph, but not within 1.5 miles, so does that mean the 253 mph is not its top speed?
Whether the engine stays together and keeps the power up for such a long distance is even something else. But back on the original question, with enough distance and an engine delivery the 480 bhp long enough I don't think 200 mph is that overestimated. In theory (what it is to me) it's no more than power vs. drag.
Whether the engine stays together and keeps the power up for such a long distance is even something else. But back on the original question, with enough distance and an engine delivery the 480 bhp long enough I don't think 200 mph is that overestimated. In theory (what it is to me) it's no more than power vs. drag.
Interesting debate but come & have a crack at it & you will see 90% of 500bhp cars cant get near 180mph in 1.5 miles it takes an engine with the Peak Power in the right place.
As regards the Veyron yes one car reached 253mph in 7 miles a great great achievement. However im involved with Topspeed records in the UK & over here a 1000bhp Veyron has a sub 210mph Topspeed & even the 1250bhp Grand Sport could only manage 220mph. That's all they did not 253mph & they get beaten by the Fastest cars in the UK.
11-01-2016, 03:25 PM
#40
10K+ Poster!!
Changing the topic slightly then, what are te fastes cars in the UK with events like Vmax? I would imagine perhaps the Severnvalley GTR is up there?