bogging on the launch?
10-11-2008, 08:04 AM
#1
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bogging on the launch? at track last night in englishtown, i ran a 13.8 on E/T drags hooked at 4 k dump. but bogged so bad, no matter what i did in 6 runs i just kept bogging, i think with slicks i should be getting better then a 2.038 60' ??? any one help on why my ls1 is bogging, also has 122k miles. 13.8s all night hot lapping. pretty good just pissed about the 60 foot.
10-11-2008, 11:35 AM
#7
If you are stock then you dont have enough gear or power to dump the clutch and not bog, especially at full weight.
You need as much air pressure in those slicks as you can because you want them to spin some. You may also want to skip the burnout and just drive around the water.
If you can get the tires to spin you should be able to get 1.8 60's stock. What you want is not to just blow the tires off but keep the tires spinning at least halfway through 1st gear. With those slicks you wont blow them off. A street tire if you did that too you would blow them off and not be going anywhere but with those tires even if they are spinning hey will still be digging and moving you forward.
You really need gears. With gears you can get 1.7's by either dumping it and letting it spin some or rolling the clutch out slower while going to the floor with gas. You cant ride the clutch or you will boil the fluid in the slave and the clutch pedal will likely go limp and you will smoke the clutch.
Hope this helps. I have alot of experience launching 6 speeds with various combos.
You need as much air pressure in those slicks as you can because you want them to spin some. You may also want to skip the burnout and just drive around the water.
If you can get the tires to spin you should be able to get 1.8 60's stock. What you want is not to just blow the tires off but keep the tires spinning at least halfway through 1st gear. With those slicks you wont blow them off. A street tire if you did that too you would blow them off and not be going anywhere but with those tires even if they are spinning hey will still be digging and moving you forward.
You really need gears. With gears you can get 1.7's by either dumping it and letting it spin some or rolling the clutch out slower while going to the floor with gas. You cant ride the clutch or you will boil the fluid in the slave and the clutch pedal will likely go limp and you will smoke the clutch.
Hope this helps. I have alot of experience launching 6 speeds with various combos.
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10-11-2008, 08:36 PM
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If you are stock then you dont have enough gear or power to dump the clutch and not bog, especially at full weight.
You need as much air pressure in those slicks as you can because you want them to spin some. You may also want to skip the burnout and just drive around the water.
If you can get the tires to spin you should be able to get 1.8 60's stock. What you want is not to just blow the tires off but keep the tires spinning at least halfway through 1st gear. With those slicks you wont blow them off. A street tire if you did that too you would blow them off and not be going anywhere but with those tires even if they are spinning hey will still be digging and moving you forward.
You really need gears. With gears you can get 1.7's by either dumping it and letting it spin some or rolling the clutch out slower while going to the floor with gas. You cant ride the clutch or you will boil the fluid in the slave and the clutch pedal will likely go limp and you will smoke the clutch.
Hope this helps. I have alot of experience launching 6 speeds with various combos.
You need as much air pressure in those slicks as you can because you want them to spin some. You may also want to skip the burnout and just drive around the water.
If you can get the tires to spin you should be able to get 1.8 60's stock. What you want is not to just blow the tires off but keep the tires spinning at least halfway through 1st gear. With those slicks you wont blow them off. A street tire if you did that too you would blow them off and not be going anywhere but with those tires even if they are spinning hey will still be digging and moving you forward.
You really need gears. With gears you can get 1.7's by either dumping it and letting it spin some or rolling the clutch out slower while going to the floor with gas. You cant ride the clutch or you will boil the fluid in the slave and the clutch pedal will likely go limp and you will smoke the clutch.
Hope this helps. I have alot of experience launching 6 speeds with various combos.
10-11-2008, 11:20 PM
#12
If it dead hooks it will bog. I got so pissed off after I first got my car that I launched it off the rev limiter and it bogged like a ****.
On drag radials and a good sticky track I drove around waterbox, dumped it and spun the tires while rolling briefly just to clean the tires off then staged the car. I dumped clutch ar 4000 and it spun about halfway through 1st then when tires grabbed it kinda bogged again then picked up and that was good for 1.84 60'.
10-12-2008, 12:50 AM
#13
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full force, your sig shows that your fastest stock 60' was 2.0 so why tell this stock guy hell run 1.8 (a huge diff) by just launching diff.
On another note - OP your orig times are exact what they should be. With bolt ons and dr's i can only achieve consistant 2.0 60'. Dont let all the talk of high 12 flat 13 stockers out there consistantly cutting below 2.0 short times on dr's its BS. Go to the track often enough and youll see. On street tires i never once got lower than a 2.2. Dont get caught up in numbers. The spining just enough to clean your dr's off and staying out of the water box is the right way. Just get bolt ons and itll go faster. Hell a 2.0 stock is good.
On another note - OP your orig times are exact what they should be. With bolt ons and dr's i can only achieve consistant 2.0 60'. Dont let all the talk of high 12 flat 13 stockers out there consistantly cutting below 2.0 short times on dr's its BS. Go to the track often enough and youll see. On street tires i never once got lower than a 2.2. Dont get caught up in numbers. The spining just enough to clean your dr's off and staying out of the water box is the right way. Just get bolt ons and itll go faster. Hell a 2.0 stock is good.
10-12-2008, 12:53 AM
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BTW i recommend tire press.to be between 10 and 15 psi.
Get more power or embrace the bog cuz stock, or boltons it aint leavin. Maybe gears would change that but idunno. Stock ratio 1st reaches 53-55mph i believe. Good luck and have fun at the track.
Get more power or embrace the bog cuz stock, or boltons it aint leavin. Maybe gears would change that but idunno. Stock ratio 1st reaches 53-55mph i believe. Good luck and have fun at the track.
Last edited by SSickLS1; 10-12-2008 at 01:03 AM.
10-12-2008, 01:07 AM
#15
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Depending on what size slicks you might bog worse, taller tires can do that. Keep that in mind. And at over 100k on the stock rear id be easier on it.
10-12-2008, 12:44 PM
#17
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. Even EFI cant completely compensate for air quality
.
10-12-2008, 01:14 PM
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I get 2.06 60ft times and 8.59 8th miles time with a trap of 84 mph with the stuff in the sig. Take is around 2,000-3,000 DA i would say. Anything i can do to make it better. I slip off the line already otherwise i bog down. Im also running regular street tires. I would like to get my 60ft time down any advise?
10-12-2008, 01:33 PM
#19
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DRAG RADIALS. A 2.0 on street tires is awesome but stock size drag radials will cut 1-2 tenths off your short times guarenteed with out adding to the bog issue like a taller (wrinkle wall slick) tire. Go with the MT ET Streets.
You need a tune next too - expect at least 10 hp 15 tq and a fraction on et's from that. Will be alot smoother.
You need a tune next too - expect at least 10 hp 15 tq and a fraction on et's from that. Will be alot smoother.
10-12-2008, 01:36 PM
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Same thing was happening to me. My best luck has been slipping the clutch a little more and letting to tires spin some. It's tough. Once I forgot to turn my traction control off and couldn't do the burnout. I just went ahead and pulled up to the line and actually got my best time. Never have been able to get the 60' under 2.0.