Thunder Road

[EmmaJ]

It's shorter, maybe not 150ish but the speedo stops reading at 164 I'm in 6th by that point...

[MyM8V8]

EmmaJ said:

It's shorter, maybe not 150ish but the speedo stops reading at 164 I'm in 6th by that point...

My speedo reads up to 250 (Used to be kph, but re calibrated) Its got up to 186.

Edited by MyM8V8 on Tuesday 10th March 10:22

[Janosh]

Really looking forward to this - anyone know when the dates will be confirmed?

[Xpuffin]

I felt that Emms car was running a 3.7 when I drove it.
Apparently not though, unless no ones actually checked the ratio to confirm its a 3.46.

Tranzilla all the way

[Xpuffin]

Janosh said:

Really looking forward to this - anyone know when the dates will be confirmed?

Dougie posted a provisional date of 8th August if you didn't spot that.

[Janosh]

Xpuffin said:

Dougie posted a provisional date of 8th August if you didn't spot that.

Cheers - just hoping that gets confirmed, 8th August is good for me

[raving]

Xpuffin said:

I felt that Emms car was running a 3.7 when I drove it.
Apparently not though, unless no ones actually checked the ratio to confirm its a 3.46.

Tranzilla all the way

Still using them old H gates

[stevieturbo]

Xpuffin said:

I felt that Emms car was running a 3.7 when I drove it.
Apparently not though, unless no ones actually checked the ratio to confirm its a 3.46.

Tranzilla all the way

3.7 would be a lot closer to 150mph at 6000rpm in 5th gear.

[stevieturbo]

raving said:

Still using them old H gates

They work, and they're affordable !

I dont see a sequential as a huge benefit, certainly not cost per £££ outlay for the sort of stuff most people here would be using the cars for.

[anonymous-user]

Xpuffin said:

Tranzilla all the way

Any idea which ratios you are going for?

[Xpuffin]

2.98
1.99
1.33
1.1
.86
.73

Possibly, although it's not really been looked at with any real scrutiny as yet as it's not a phase one item.

[Xpuffin]

raving said:

Still using them old H gates

Call me old fashioned but I don't think a sequential is the Monaros style.

[anonymous-user]

Xpuffin said:

2.98
1.99
1.33
1.1
.86
.73

Possibly, although it's not really been looked at with any real scrutiny as yet as it's not a phase one item.

Hmmm, If you built an LSX engine that produced a reliable 1200 HP with optimum gearing, I wonder how fast it would go over a standing mile. Is there a way to work it out?

Edited by anonymous-user on Tuesday 10th March 22:38

[stevieturbo]

wormus said:

Hmmm, If you built an LSX engine that produced a reliable 1200 HP with optimum gearing, I wonder how fast it would go over a standing mile. Is there a way to work it out?

Edited by wormus on Tuesday 10th March 22:38

With that sort of power, gearing unless diabolically terrible isnt going to make much odds

The limiting factor with above is overall gearing. ie tyres and diff. ( and rpm's of course )

With the above, and say a 3.45 diff and 255/40x18, ie a 26" tall tyre that would place 200mph around 6500rpm
If it had say a 3.08 Viper diff, 200mph would be just under 6000rpm.

So depends where peak power/torque is, but in general there's a fair bit of flexibility there

With my 5th being the same overall ratio as the Tranzilla 6th, it may hurt a little, but as there's a fair degree of power to pull the gear it wont make much odds.
If anything it can actually help retaining traction in the gear.
Of course if that was the case, it'd be no odds to shift the Tranzilla from 4-6 and ignore 5th if traction was still a problem in 5th

Speed over distance can be a strange thing. The 1000hp GTR's at TOTB for the 1km were picking up around 35-40mph over the last 600m.
I made a bad 1/4 due to not getting gears, but from the 400m to 1km distance I picked up 60mph, and that was solely using 5th gear, even breaking traction a little around 170-175mph

I dont think having a 5/6 to play with over that last 600m would really have benefited me vs just 5th gear.

But back to a mile. I'd like to think with that power, gearing that allowed it and a reasonably aerodynamic car you'd think 210-220mph should be very doable in a standing mile.

[M11 MFP]

stevieturbo said:

wormus said:

Hmmm, If you built an LSX engine that produced a reliable 1200 HP with optimum gearing, I wonder how fast it would go over a standing mile. Is there a way to work it out?

But back to a mile. I'd like to think with that power, gearing that allowed it and a reasonably aerodynamic car you'd think 210-220 mph should be very doable in a standing mile.

Steve is about right. With circa 1000 whp, a monaro will be in the 210-215 mph order in the mile, well into the stability danger zone for its standard body configuration. A VXR8 will only just crack 200, due to the frontal area aspect of the CdA.

You were quite quick to scoff at my estimation of the real output of Steves 202 mph Granada, but going 200 in a mile is a big challenge if the aero isn't great. The resistance is crippling once the wheel torque has been diluted by the long gear. The fact the granada is light and therefore gains a couple more seconds to accrue the final mph versus a heavy saloon won't make an enormous difference to the trap speed, perhaps 5 mph at most.

Edited by M11 MFP on Wednesday 11th March 08:31

[Xpuffin]

For some cars yes maybe, for a Monaro 1000 alone isn't enough without correct gearing, which is critical because the Monaros lack of ability over the first quarter mile means a game of catchup when the numbers start to run against the car.
To run a 200 mile you really need to start with a 10 second car.
5 mph trap differential IS huge.

[SturdyHSV]

Xpuffin said:

For some cars yes maybe, for a Monaro 1000 alone isn't enough without correct gearing, which is critical because the Monaros lack of ability over the first quarter mile means a game of catchup when the numbers start to run against the car.
To run a 200 mile you really need to start with a 10 second car.
5 mph trap differential IS huge.

[stevieturbo]

M11 MFP said:

The fact the granada is light and therefore gains a couple more seconds to accrue the final mph versus a heavy saloon won't make an enormous difference to the trap speed, perhaps 5 mph at most.

Far from it, over 1700kgs race weight. Although weight over a mile really wont make much odds. It's all about power and aero...mine has absolutely no aero lol
Traction plays a part too...but really difficult to say how much

I'd like to think a VXR8 would see 210+ too, as it is far more aerodynamic than my car

[SturdyHSV]

stevieturbo said:

Far from it, over 1700kgs race weight. Although weight over a mile really wont make much odds. It's all about power and aero...mine has absolutely no aero lol
Traction plays a part too...but really difficult to say how much

I'd like to think a VXR8 would see 210+ too, as it is far more aerodynamic than my car

I guess a VXR8 would at least rip its own spoiler off on the way there to help aero

[stevieturbo]

Xpuffin said:

For some cars yes maybe, for a Monaro 1000 alone isn't enough without correct gearing, which is critical because the Monaros lack of ability over the first quarter mile means a game of catchup when the numbers start to run against the car.
To run a 200 mile you really need to start with a 10 second car.
5 mph trap differential IS huge.

Not at all.

As my 1km run proved last year.
Completely terrible 1/4 due to not being able to get gears. I lost a full 120m out of 400m with the car slowing down initially as I hit 1st instead of 3rd, and free wheeling around 68mph for 3.6 seconds until I finally got 3rd gear. Then giving it too much in 3rd and 4th seen huge wheelspin, it was only in 5th just after the 1/4 mark I really started accelerating.

1/4 was approx 13.7 at 124mph. 1km was approx 22.4s at 184mph.
That would easily have been a 200+ mile if I'd continued.

That run was actually my best ever run at 1km distance. If it hadnt of screwed up it would have been an easy 190+ 1km which would have been by far my best 1km although it was still a PB anyway.

But that gain pretty much all came using a single gear, and all after the 1/4.