drop or slip what are the pros and cons
#2
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When I drop it it usually does 1 of 2 things. 1 massive wheel hop or 2 way too much wheel spin. However I have a very aggressive clutch that will grip if I drop it from 7k. I find my best results are from slipping it but still spinning the tires.
#7
Former FC enthusiast
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It depends on how much power and torque the engine makes, wheels, tires, suspension, alignment, etc. With NA's its best to drop the clutch at 5k+, TIIs you might be better off slipping it out. If you try it you will know when you have a good launch and when not, should have no bogging and minor wheelspin.
As far as whats bad for the car it also depends on the factors stated earlier. Stickier tires will transfer the stress on the next weak link the drivetrain during a clutch drop. Best way is to practice at a dragstrip and compare 60 foots.
As far as whats bad for the car it also depends on the factors stated earlier. Stickier tires will transfer the stress on the next weak link the drivetrain during a clutch drop. Best way is to practice at a dragstrip and compare 60 foots.
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#8
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I usually try to get staged first so I can watch the others staging lights as soon as his light up I slip the clutch a lil to load everything up then drop it at launch. Dont just sit staged slipping the clutch.
#9
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i have a 1988 N/A convertible only upgrades are exhaust and air filter it was boging but i tried droping the clutch at 5ksh and it dint bog if i drop the clutch at above 6k it stays there burning out for a second or so. and and as for sliping i gatta practice my sliping because last time i did it i smelled burnt clutch all the way home.
#10
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If you are on street tires - slip. If you feel ANY wheel hop, let off right away.
If you are on ET streets - drop the clutch. You should not get any wheel hop provided you have the right tire pressure.
Anthony
If you are on ET streets - drop the clutch. You should not get any wheel hop provided you have the right tire pressure.
Anthony
#15
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I have tried both methods but without success as yet,still trying to find that "sweetspot",last week my car ran a 10.6 at 144.7mph but with a 2.1 60ft .I have launched between 7000 and 9500 revs,it bogs upto 9000 but over that spins, seems a very fine line to launching it,going to be trying again at our annual rotary meeting in august with a good launch should get into the 9"s.
#17
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I have tried both methods but without success as yet,still trying to find that "sweetspot",last week my car ran a 10.6 at 144.7mph but with a 2.1 60ft .I have launched between 7000 and 9500 revs,it bogs upto 9000 but over that spins, seems a very fine line to launching it,going to be trying again at our annual rotary meeting in august with a good launch should get into the 9"s.
Either way once you get a 1.5 60ft, you will have a mid 9sec car!
Anthony
#18
Rotary Enthusiast
#19
AND YES.....Drop it, then back peddle (feather) the throttle till you have traction. Just make sure you have a clutch that can handle dropping at decent revs. Depending on your port-say a streetport drop at 5000 or so....PPorts drop the clutch at 9000+, like this...
http://www.youtube.com/watch?v=UzehU-EDJfY
BTW...this is still one of the sickest vids out there!
#20
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Personally i think more and more seat time is the answer,the trouble with over here is we only have a couple of decent dragstrips and most of the time it is raining or windy,that last run with a 144.7 terminal was into a 50-60mph headwind,its meant to be summer but we havent seen any sun yet!Global warming no chance
#21
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I didnt have a line lock so a lil light pressure on the brake with the side of your foot should keep you there, or should I say it kept me there. I had a couple red lights but I got it down and my times improved a good bit because i was not spinning off the line.
#22
Will work for horsepower
Drop, slip, low rpm high rpm i tried them all saturday in a local 1/8 mile street event if your running the wrong tires your just going to have problems!
They wouldnt let me run the et streets so i ran on 275 street tires and is wasn't pretty.
Best 60 ft 1.96.
best trap 102.2.
best et 7.49.
But i did take the money so its ok!
The et streets were the best money ive spent for reduceing the et, 1.522 60 ft no wheel hop and the parts are still in one piece.
They wouldnt let me run the et streets so i ran on 275 street tires and is wasn't pretty.
Best 60 ft 1.96.
best trap 102.2.
best et 7.49.
But i did take the money so its ok!
The et streets were the best money ive spent for reduceing the et, 1.522 60 ft no wheel hop and the parts are still in one piece.
#23
Chasing numbers
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Drop, slip, low rpm high rpm i tried them all saturday in a local 1/8 mile street event if your running the wrong tires your just going to have problems!
They wouldnt let me run the et streets so i ran on 275 street tires and is wasn't pretty.
Best 60 ft 1.96.
best trap 102.2.
best et 7.49.
But i did take the money so its ok!
The et streets were the best money ive spent for reduceing the et, 1.522 60 ft no wheel hop and the parts are still in one piece.
They wouldnt let me run the et streets so i ran on 275 street tires and is wasn't pretty.
Best 60 ft 1.96.
best trap 102.2.
best et 7.49.
But i did take the money so its ok!
The et streets were the best money ive spent for reduceing the et, 1.522 60 ft no wheel hop and the parts are still in one piece.
NICE!
#24
Will work for horsepower
Thanks
Any time the track writes you a check and you are able to drive home its a good day.
On the subject of the original post, there just isn't one answer to the slip/drop guestion there variables are just to great!
My advice practice small adjustments more practice and listen to what the cars telling you and give it to her!
Any time the track writes you a check and you are able to drive home its a good day.
On the subject of the original post, there just isn't one answer to the slip/drop guestion there variables are just to great!
My advice practice small adjustments more practice and listen to what the cars telling you and give it to her!
#25
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I've had good luck with the drop. Netted a 1.52 off an 8k drop. You can see it here: http://www.youtube.com/watch?v=coxy4dOVI64
Some other good launches:
1.56 launch, you can hear it bang the 8100 limiter just before.
http://www.vimeo.com/1550870
Can't remember the 60', but its a good run:
http://www.youtube.com/watch?v=8KjeT7GOUds
The pic below describes it pretty well.
Some other good launches:
1.56 launch, you can hear it bang the 8100 limiter just before.
http://www.vimeo.com/1550870
Can't remember the 60', but its a good run:
http://www.youtube.com/watch?v=8KjeT7GOUds
The pic below describes it pretty well.