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Originally Posted by Greg Irvine
Went to drags at Fontana yesterday with the 07 with some interesting and curious results...Made four runs with DA between 3500 & 4700...Temps between high 85 to 98 degrees on the last run...Smoking hot all day which made the cars' temp at launch of 210 or higher on all runs...60 fts from 2.04 to 2.10...The odd things was that it NEVER got into 4th gear which is probably attributable to the high operating temps...The other odd is on the 4 runs it gained 28.5, 29.5 and 2 runs of 31.50 mph gains in the second half...ETs were 12.41, 12.20 12.11 & 12.10 with a best MPH of 123.24 which happened to be one of the 31.5 MPH gains on the last run before I left because of the heat...Just too frickin hot to mount any kind of an attack on the track...Since it was the first time with the car I asked quite a few drag racers that said their mph were down 5 to 6 mph but that is certainly no consolation just an excuse...Left @ noon because of the heat...I should have gone earlier in the season when it was cooler, but oh well...No power shifting by the way, it just didn't want to rev quickly in the 1st and 2nd and it showed with a best 1/8 mph of 92 mph with 3 runs @ 91+ mph...Any thoughts from you drag racers ?
Greg
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Greg,
I don't think you did too bad considering the heat and D/A.
Any normally aspirated motor is going to take a huge hit in power under those conditions. That's the main reason I don't race my Z here in the mountains during the summer. I have seen density altitudes at Bandimere as high as 12000' on a 90+ degree day and it is usually well over 9000' on most summer days and evenings there. The track at Pueblo isn't much better even though the real elevation is about 900' lower, as the temps there are usually hotter than Denver. The best D/A I have ever experienced here was in Pueblo last year in late October, and it was still 6000'.
Wait till late fall, get some sticky tires on your car, and you'll see low 11's easily, maybe even high 10's, then you'll get the boot for not having a roll bar!
Jimbo
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