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Originally Posted by dalius
my is 13.79  with 350.1bhp and 458nm. |
Factory is 340/347Bhp (Think it's the old DIN/SAE 1.0139 difference even though it doesn't add up!) and 295lb/ft which is 399.51nm
Several cars in last years 10 car dyno meetup scored near factory figure, so no issue with a 350, as this is within tolerance of error, especially is this likely an uncorrected figure for weather. (A 1998 LS1 showed 283bhp one day and 299bhp two days later, 20 degrees F cooler)
I suspect that the figure of 458nm (which is 337.76lb/ft) for a stock engine ten years plus old is wrong, almost certainly incorrect conversion from rw power to crank estimate. Remember all factory figures are taken from the crank.
The quarter mile time is quite doable I suspect.
13.79 was the time you reported.
Performance car got a 14.4 at 102mph in 1995 with a 3.8
Car and Driver reported 14.2 at 99Mph in 1990, then Motor Trend got 14.9, also in 1990 and both with a 3.6 car.
I suspect that most quarter mile times were obtained on plain tarmac rather than the very very grippy surface on a real dragstrip, so my little brain reckons you could get more power down with todays tyres and low pressure and a run-in engine on a rubber coated dragstrip, than they got way back then with original tyres and new engines for a magazine test!
Anyway, it's the real world tests that matter, posting a scanned 1/4 mile timeslip is real, dyno results are far too variable!
My two cents.
Ivan.
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