ET street success?
10-07-2018, 06:36 PM
#1
ET street success?
First time at the track with the tires. Got 255/50/16 ET street SS on some f-body wheels.
1st: 60 ft: 2.8
1/4: 12.8@121
2nd: 2.4
12.4@121
3rd: 2.0
11.9@121.5
4th: 1.8
11.6@122
happy with results. But how in the damn can I get like a 1.6 60ft. It's a stick car with 4.10 gear. The last run I slipped it at about 3500rpm. Should I try slipping at 4500 next time.
1st: 60 ft: 2.8
1/4: 12.8@121
2nd: 2.4
12.4@121
3rd: 2.0
11.9@121.5
4th: 1.8
11.6@122
happy with results. But how in the damn can I get like a 1.6 60ft. It's a stick car with 4.10 gear. The last run I slipped it at about 3500rpm. Should I try slipping at 4500 next time.
10-09-2018, 08:08 AM
#5
Le Mans Master
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Shifting near redline will help. By looking at your HP curve and trans ratios, you can determine optimum shift points based on your shift recovery. Remember you need to maximize power under the curve.
As for launch rpm, that will be determined by track prep, tire pressure, clutch and technique. The last being the most critical. A quick slip within the first 5'-10' usually yields good results. You may wish to try 4000 rpm and move up or down from there. A 1.6x sixty is not too lofty of a goal and should be attainable in the next outing or so provided the other elements are in order.
As for launch rpm, that will be determined by track prep, tire pressure, clutch and technique. The last being the most critical. A quick slip within the first 5'-10' usually yields good results. You may wish to try 4000 rpm and move up or down from there. A 1.6x sixty is not too lofty of a goal and should be attainable in the next outing or so provided the other elements are in order.