200 mph 850?

**t5_monkey** · Tuesday 10th April 2012, 20:59

Remember you'll need special tyres and you'd be most foolish to try this without a full roll cage, harness etc...

**JUDGENINJA** · Tuesday 10th April 2012, 21:02

If I can build my engine to rev to 8500 then I just might make it!!

**sundog** · Tuesday 10th April 2012, 21:33

Originally Posted by t5_monkey

Remember you'll need special tyres and you'd be most foolish to try this without a full roll cage, harness etc...

i barley feel safe driving normally on the road without a cage and buckets. its top of my list

**T5frankie** · Tuesday 10th April 2012, 22:28

Originally Posted by t5_monkey

yep exactly! and yes do the 1/4 in 3rd

Well that's a pointless gearbox then If can only do 149 mph with the ratios it has, could be clot quicker with shorter, ratios

**t5_monkey** · Tuesday 10th April 2012, 23:51

Originally Posted by t5frankie

Well that's a pointless gearbox then If can only do 149 mph with the ratios it has, could be clot quicker with shorter, ratios

I believe 149 is in 5th @ 6000rpm ..6th is a cruising gear.

Means I get 37 to the gallon the M-way ... so I'm not complaining!

**AndysR** · Wednesday 11th April 2012, 20:56

All you manual boys......

If the lowely 4sp auto could cope with the power you'd be doing 200 mph @ just a smidge over 7,000 rpm....

**lance** · Wednesday 11th April 2012, 22:07

I reckon with the 6 speed box fitted to the Focus T5s and an upgraded 500 BHP RS Focus engine with a 7000 peak power band it would easy crack it as monkey says 90 MPH is aprox 3k rpm in 6th

**LiamT4** · Wednesday 11th April 2012, 22:21

The E60 M5 can just crack 200mph, that has 507bhp with a drag coefficient .30, but it also has 7 gears.

and i'm pretty sure that it took over 600bhp for the first sierra cosworth in britain to get past 200mph (mad rod, M A devolopments car? or am i getting confused)

**T5frankie** · Wednesday 11th April 2012, 22:23

Originally Posted by LiamT4

The E60 M5 can just crack 200mph, that has 507bhp with a drag coefficient .30, but it also has 7 gears.

and i'm pretty sure that it took over 600bhp for the first sierra cosworth in britain to get past 200mph (mad rod, M A devolopments car? or am i getting confused)

my old 424bhp cossie was an m.a developments car, speedo didnt work though lol

**AndysR** · Wednesday 11th April 2012, 22:30

Originally Posted by t5frankie

my old 424bhp cossie was an m.a developments car, speedo didnt work though lol

Any cossie with a chip and an exhaust is a 200 mph isn't it? lol

**AndysR** · Wednesday 11th April 2012, 22:31

Originally Posted by LiamT4

The E60 M5 can just crack 200mph, that has 507bhp with a drag coefficient .30, but it also has 7 gears.

and i'm pretty sure that it took over 600bhp for the first sierra cosworth in britain to get past 200mph (mad rod, M A devolopments car? or am i getting confused)

Yes, the same guy did some calculations for an 850 and said it would require slightly less power for the 850 to do the same

**t5_monkey** · Wednesday 11th April 2012, 22:34

Originally Posted by LiamT4

The E60 M5 can just crack 200mph, that has 507bhp with a drag coefficient .30, but it also has 7 gears.

and i'm pretty sure that it took over 600bhp for the first sierra cosworth in britain to get past 200mph (mad rod, M A devolopments car? or am i getting confused)

Sorry to be a geek but it's Cda (coefficient drag area) you need rather than just the Cd.

BMW is a big car, so although slippery there's more of it, so it needs more power.

and IIRC It's 29.8mph/1000 for the S40.

http://www.roadandtrack.com/content/...40-T5_data.pdf << full data sheet

**Nathlm** · Wednesday 11th April 2012, 23:55

Our old V70 T5 2001 would top out at about 170MPH even with hybrid turbo, raised rev limit and Vmax removed and that was using the whole length of France.

**popuptoaster** · Thursday 12th April 2012, 10:27

I have friends who are trying to get a Mk1 Escort to 200mph, 450ish bhp takes one up to around 185mph, they have mates who took a Sierra cossie up to 214mph, it needed 800bhp, the door mirrors taking off and all the panel gaps taping up with gaffer tape.

[ame]http://www.youtube.com/watch?v=Gvkk7GENhHk[/ame]

**Niles** · Thursday 12th April 2012, 11:46

http://www.youtube.com/watch?feature...&v=W7DutWKDtyI

**p fandango** · Thursday 12th April 2012, 11:59

once BT gets the gearbox i want, & a TT to raise the rev limiter she'll have a theoretical top speed of 213mph lol

**M-R-P** · Thursday 12th April 2012, 12:18

Originally Posted by p fandango

once BT gets the gearbox i want, & a TT to raise the rev limiter she'll have a theoretical top speed of 213mph lol

And running off a lethal mixture of alcohol and nitrous oxide

- and that's just the driver

**PaulZX** · Thursday 12th April 2012, 12:32

Originally Posted by p fandango

once BT gets the gearbox i want, & a TT to raise the rev limiter she'll have a theoretical top speed of 213mph lol

I volunteer myself as test pilot, if you wanna prove that pedro....

**popuptoaster** · Thursday 12th April 2012, 13:16

I had a 3.44 diff in my 24v Cortina, it used to hit the rev limiter at 131mph in 5th gear, so I hunted down a 7.5" 4 stud Mustang rear axle as its was around the right width, had the right stud pattern and was strong enough for what I needed while still being a sensible weight.

Can't remember the diff ratio but it had a theoretical top speed of 190 something.