So, if I want my 3 door to manage to keep up with Rob's astra over half a mile, how much power will I need?

Anyone on here in that sort of ballpark can you let me know what power you have please?

CheeRS

 

600-700 bhp thats my stab in the dark

 

sod the 3 door. hows the nova coming along?

 

What power does Lee Catermole run, he does 120mph terminal 1/4`s doesnt he?

 

Divide the power of his Astra by it's weight and then multiply by the weight of your 3 door.

 

..................then hope the aero dynamics are the same?

 

Would give you a rough idea, but different drive trains and areodymanics will also come into effect.

 

Well, i'd imagine they are both about as aerodynamically inefficient as each other. Obviously you'd need some decent tyres if the Astra has had a lot of suspension work done.

 

To hit 150 in a half a mile in a Cossie will require 450bhp if gearing is correct it would hit close to 170 in the mile & be doing 175ish at 1.5 miles.

Kieth Brooks in PF this month did 169 with 411bhp down Brunters thats what it should do & fits in with what I said above.

 

Astra has better aero .32 the Saff is .34.

 

I might just about stand a chance with the gas on then.


Thanks Rod, I should have just PM'd you as you were bound to know

 

MadRod, out of interest, what does your car hit in half a mile?

 

180mph!

 

bloody hell Chip, i forgot you still had that 3dr LOL

 

mine with about 550bhp was doing 164mph at half mile recorded on datron

 

Yep, still got it, and no intention of getting rid TBH mate, its my baby

 

Thats fucking flying

Thats actually 2 mph more than that 1000bhp monaro on the same distance!

 

presume kevs was quicker due to the 4wd system and not smoking the tyres for the first 3 gears!

steve

 

Indeed, that monaro only really starts going after the quarter, lol

 

i remember renton pm,ing me the times, it was a fair bit quicker than rocket rons skyline that day i think about 2 sec faster to 150mph

but then i would say it was a genuine 550bhp cossie not a pub talk one LOL

 

LOL, plenty of those out there!

 

if its any help ive done 0 - 155 and stopped inbetween 0.9 and 1 mile very hard on the brakes though that was everything she had to give.

 

No help at all given that you didnt even mention the spec of your car, nor wether that was off a speedo or proper timing gear

 

speed taken from road angel and my speedo actually underreads.

polished head virtualy standard port size, bd14s, t4 at 2.2 bar from 5000 rpm up to 8000. 7.5 comp 865 siemens.

 

Very impressive then, sounds like it was as quick as kev's in that case.

 

PS

If your speedo under reads then you probably went more than a mile though now I think about it

 

mileage wise was rolling on the speedo from 9 to 0 and 140 speedo is 144 true speed via road angel or tom tom.
i dont know exactly when i got on the brakes but only just stopped with 330 4 pots and 300 rears. id guess i hit the brakes at .6 to .7 miles.

 

The Monaro should be with mine at the half mile & then pull away so if you said 182 at the half mile that would be what a 1000bhp should do & on to 215+ in the full straight.

 

Kieth brooks not the lad with the white saf that used to run when I ran my rsturbo? he did exactly 169.9 with 400bhp. I recall him trying very hard to get into the 170's... He still at it?!

RW

 

by my calculation 4 mph undereading will make a 0.06 of a mile difference to distance travelled over 1 mile.

 

Bit of competition going on then Chip?? Surely you have something up your sleeve to give you a advantage or something?

 

Cover car PF this month only us old geezers know the times were set about 8years ago. Was their when he did that he was actually on the limiter & didnt want to move it so 169.9 was all it had, good strong car & genuine Power.

 

IIRC last time Lee was timed, he was on the limiter on a 3.9 diff by 0.7 of a mile. That was something like 176mph.

Now back on a 3.6 diff though.

 

U were there too? I don't recall that. Must'n have known who u were at the time, unless he had another go!

Cheers

RW

 

What about frontal area?

 

Not sure but Mark did a det run to make sure it was safe, cant remember any other cars its too long ago.

 

Yours would win on style though Rod. At the weekend the Monaro looked proper slow and sounded pretty disapointing. There was no snaking up the runway in the first four gears

As Chipper said though apparently he was loseing loads of power due to high intake temps.

 

im not sure thats true of mine



standard gte vs mine



i dont think mine will be as good as a standard gte

 

So was i in the old Green Cossie Cortina, 146.7mph on a Stage 1 chip LOL

Steve

 

Yeah possibly, we're thinking of both entering one of the "fighting torque" type events if there is one on later in the year after most of the trackdays are out of the way

Im confident I can beat the 169 he did if mine is running right on the day, but the problem with that is, he hasnt fitted his nitrous yet, so realistically, im going to get dry humped, but I'll still give it a go, maybe if we can end up at big enough speeds i'll win cause my heavy old 3 door is steady as a rock at speed and robs little lightweight thing dances about a bit, lol