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Top Speed Limiter

MrSirWantalot

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I have had mine up to 220km/h (thats the highest reading on a standard cluster) an was still accelerating.

Does urs have the single or triple window?. Mine is triple, but Im not sure if once the needle gets to 220 the left window takes over in digital/analogue whatever they call it. I also think they are speed limited to 250 for a sedan (wagon & ute could be different)?
 

bricat

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Even AMG Mercedes are speed limited so it would be fare to say the Commodore is. And you don't die doing 200 km/h or faster. Some of the roads are more than capable of handling that speed. In the old days we used to sit on 95-100 mph out in the country. And that was in a 1972 xa fal..n up the infamous Newell Hwy. Down the straight at Phillip Island flat out????. Plenty of places to go fast...
 

Darcon666

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The limit is not related to speed per say.... it's a rev limit based on a few variables so depending on auto/manual, diff ratios, kw... so here are just some stock numbers after a 5 min google.com.

Holden 220kw, LS1, auto(4speed) & 3.08 diff @ 5500rpm = approx 245km/h
Holden 220kw, LS1, 6speed manual @ 0.63:1 & 3.46 diff @ 5500rpm = approx 250m/h
HSV 255kw, LS1, 6speed manual @ 0.56:1 & 3.73diff @6250rpm = approx 273km/h
HSV 297kw, LS2, 6speed manual @ 0.50:1 & 3.46(Should have been 3.73)diff @6550rpm = approx 297km/h(proven in the NT by Skaife)
 

QldKev

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The limit is not related to speed per say.... it's a rev limit based on a few variables so depending on auto/manual, diff ratios, kw... so here are just some stock numbers after a 5 min google.com.

Holden 220kw, LS1, auto(4speed) & 3.08 diff @ 5500rpm = approx 245km/h
Holden 220kw, LS1, 6speed manual @ 0.63:1 & 3.46 diff @ 5500rpm = approx 250m/h
HSV 255kw, LS1, 6speed manual @ 0.56:1 & 3.73diff @6250rpm = approx 273km/h
HSV 297kw, LS2, 6speed manual @ 0.50:1 & 3.46(Should have been 3.73)diff @6550rpm = approx 297km/h(proven in the NT by Skaife)

Those numbers are wrong!
LS1, auto (4speed) & 3.07 diff @ 5,500rpm = 310km/h
Thats if no other governors, stall locked up and the car having the power to do it

Going by the spreadsheet I wrote. here, under Speed calc

A VX LS1, with stock diff 3.07
at 5,500rpm

Gear Gear ratio 3.07 3.45 3.73 3.91 4.11
1 3.06 71.0 63.2 58.4 55.7 53.0
2 1.63 133.3 118.6 109.7 104.6 99.6
3 1 217.2 193.3 178.8 170.6 162.3
4 0.7 310.3 276.2 255.4 243.7 231.8


at 6,000rpm

Gear Gear ratio 3.07 3.45 3.73 3.91 4.11
1 3.06 77.4 68.9 63.7 60.8 57.8
2 1.63 145.4 129.4 119.7 114.2 108.6
3 1 237.0 210.9 195.1 186.1 177.0
4 0.7 338.6 301.3 278.7 265.8 252.9


So for my 4.11 diff, reading from real world logs. (I backed of before the quarter mile in this run)
1st @ 6,000 = 57
2nd @ 6,000 = 108
3rd @ 5,500 = 162 I don't have any logs @ 6,000rpm on my pc to check.


log_1.jpg
log_2.jpg
log_3.jpg



QldKev
 

Tatiana

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Country roads, no cops. Perfect place haha :p yeah i guess he will just have to test the SS and ill let you know :p

When you get busted don't come crying here looking for pity. How will they know? Well this is a public forum and cops do read it.
 

QldKev

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When you get busted don't come crying here looking for pity. How will they know? Well this is a public forum and cops do read it.

Agreed, anyone doing this on the streets needs to get busted anyway.

Problem with the drags is we can only run for the 1/4mile and have to back off. We need something like the Top Gear track that we could hire.

QldKev
 

luke23

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Even AMG Mercedes are speed limited so it would be fare to say the Commodore is. And you don't die doing 200 km/h or faster. Some of the roads are more than capable of handling that speed. In the old days we used to sit on 95-100 mph out in the country. And that was in a 1972 xa fal..n up the infamous Newell Hwy. Down the straight at Phillip Island flat out????. Plenty of places to go fast...
im sorry you dont die going 200km/h??...yeah most of australian roads are capable of cars to go that fast or faster, but the driver mighten be capable, and theres to many variables, what if someone pulls out in front of you/your tire pops/your brakes stop working...pretty sure hitting a tree or another car going 200km/h and you have a 1 in 1000000 chance of living...
 

Darcon666

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QldKev... I stand corrected and it's all good, especially seeing this was a 5min google I did :p

I take it that you have taken into account wind resistance and of course rolling resistance of the tyres in your calcs. :poke: :lmao:
 

ToMMMaY

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Hate Speeding

Personally i like the feel of Launching from a stop start and feeling the Gs :D
 
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