TOP SPEED 120 ish

daddykins2 · Post by **daddykins2** » Mon Jan 01, 2007 8:00 pm

does anyone know the top speed of a (90) HDI. i get to 120ish then chicken out, i have a (110) HDI which accelerates slower, but reaches the ton faster !

GeordieBoy · Post by **GeordieBoy** » Mon Jan 01, 2007 8:51 pm

The HDI 110 will do 130mph, its limited to that so wont go higher unless you get the limiter removed somehow.
The 110 is much quicker then 90 tho.

Juzza · Post by **Juzza** » Wed Jan 03, 2007 10:11 pm

http://www.parkers.co.uk/cars/specs/Data.aspx?model=660

PUG406SRI-Turbo · Post by **PUG406SRI-Turbo** » Sun Jan 28, 2007 12:16 pm

How about a 406 Turbo whats the top speed on them i do 132mph once and i chikened out aswell lol.

jameslxdt · Post by **jameslxdt** » Sun Jan 28, 2007 12:20 pm

i reckon the turbo could pull an indicated 140 mph on the speedo, ive had my standard 2.0 16v to 130 mph on the speedo

GeordieBoy · Post by **GeordieBoy** » Sun Jan 28, 2007 12:29 pm

I would expect the Turbo to hit 150mph, Foxy prob knows if it can or not.

Every car I have had in 13yrs driving had a top speed 5-10mph less than the clock speed.

The HDi 110 has clock speed of 160mph. 130mph comes up at about 4,300 revs, red line is 5,200.

mjb · Post by **mjb** » Sun Jan 28, 2007 12:38 pm

PUG406SRI-Turbo wrote:How about a 406 Turbo whats the top speed on them i do 132mph once and i chikened out aswell lol.

Er, the post you replied underneath has the specs for 406 performance. With your mods I'd expect a few mph less due to extra drag. Also dont' forget your speedo will probably be nearly 10% off.

Juzza · Post by **Juzza** » Sun Jan 28, 2007 7:58 pm

The turbo in standard form has 150bhp...which means it isn't going to do much more than about 135mph. (Actual speed - not indicated and also on the flat, not down a hill!)

There's a physics equation somewhere to work out speed increase versus engine power increase...

*Waits to get slated in the next few posts! ...*

mjb · Post by **mjb** » Sun Jan 28, 2007 10:33 pm

Juzza wrote:The turbo in standard form has 150bhp...which means it isn't going to do much more than about 135mph.

Almost right. The a turbo fresh from the factory would make about 150bhp and do 130mph allegedly. Having said that mine will top out anywhere between 125-135mph measured by GPS, so there's obviously a fair amount of leeway in those figures, although gradient and more importantly wind speed/direction make a HUGE difference at that end of things.

There's a physics equation somewhere to work out speed increase versus engine power increase...

It's a useful formula if you're designing a car and know exactly what your wind speed and drag co-efficient are, but its usefulness outside a lab is limited.

*Waits to get slated in the next few posts! ...*

no, just corrected

Juzza · Post by **Juzza** » Sun Jan 28, 2007 10:39 pm

I've found the formula, like you said it's not fantastically accurate but it's alright. Figures are near enough. Just shows you need a shed load of bhp for a few mph increase over about 130...

Thanks for not hurting me too much!