Top 25 1/4 Mile Times For ( TT, ST, SuperCharger, Nitrous, Bolt-ons, Stock )
#1784
Retired Admin
iTrader: (95)
What does your power curve look like? I've seen something like this before with a local SC'd Z. He ran a 13 flat at 100.00 mph. Maybe your power curve is dropping like dead flies at the top of each gear.
#1791
Retired Admin
iTrader: (95)
I knew supercharged cars didn't drop in power in the high revs, but I wasn't sure if that was the case with you. Perhaps your lack of low and mid range power and torque is what's causing this. It seems from the graph that your car was tuned for peak power, not overall powerband (maybe a characteristic of superchargers?).
Plus, since your car is 5AT, it has the 3.3 FD. That means that you're probably only using 3 gears the whole way down? For such little power being made in the low to mid range, those gears seem long, especially in 3rd gear. You're only making significant power increase around 6K and up. Maybe you should look into 3.5 FD from the 6M/Ts.
Another thing is that you're launching relatively low at 2500 rpm, so getting some upgraded torque converters for more aggressive launches would definitely help.
Also, I'm not sure what the numbers are supposed to be like with superchargers, but that seems pretty low all around. Have you considered using a small shot of nitrous (like 25-50) for the mid range?
Plus, since your car is 5AT, it has the 3.3 FD. That means that you're probably only using 3 gears the whole way down? For such little power being made in the low to mid range, those gears seem long, especially in 3rd gear. You're only making significant power increase around 6K and up. Maybe you should look into 3.5 FD from the 6M/Ts.
Another thing is that you're launching relatively low at 2500 rpm, so getting some upgraded torque converters for more aggressive launches would definitely help.
Also, I'm not sure what the numbers are supposed to be like with superchargers, but that seems pretty low all around. Have you considered using a small shot of nitrous (like 25-50) for the mid range?
#1794
Retired Admin
iTrader: (95)
I've only seen something like this once (on a Z anyway). I couldn't explain it then, and I guess I still can't figure out why now.
Well, at least for your trap speed, your ET is awesome. That's something to be happy about.
#1795
Registered User
iTrader: (1)
Sorry. I slipped in the post about the 3.5 gears before you posted. If I launched at a higher rpm I would have to put on my DR's, and I will just to get a bragging time, but I want 12.5 on big *** 19" heavy street tires first.
This is a really crappy vid, but this is how I launch.
This is a really crappy vid, but this is how I launch.
Last edited by fowlman01; 05-08-2009 at 04:04 PM.
#1796
Registered User
iTrader: (1)
So you have shorter gears already. Weird. I don't know what other thing it could be then.
I've only seen something like this once (on a Z anyway). I couldn't explain it then, and I guess I still can't figure out why now.
Well, at least for your trap speed, your ET is awesome. That's something to be happy about.
I've only seen something like this once (on a Z anyway). I couldn't explain it then, and I guess I still can't figure out why now.
Well, at least for your trap speed, your ET is awesome. That's something to be happy about.
In the vid you can hear that I'm not in first or second for very long.
#1797
Retired Admin
iTrader: (95)
Ooh, Walt, you just made a big no-no for drag racing. NEVER drive through the water box when you have street tires on. You should not only go around for your own traction, but for others who are using slicks so they don't slip on the water you dragged through the 1/4. You should go around the water box, then back up into it. Spin the wheels for a split second, get out of the box, and then try to warm up your tires a little bit. I know you're doing well with launching, but street tires shouldn't see much water when drag racing for any reason other than clean the debris off.
And as far as you spending little time in 1st and 2nd, it should be the same as the 6M/Ts. It seems you're good to go there. So, I'm definitely stumped.
Running 12.5 on street tires with wheel diameter of 19" will be very hard (well, at least your trap would indicate that, but we all know your car's just different). I tried to run a 12 sec pass N/A with only 4 mods and slicks a while back, but I only got down to 13.2. Since then, I've added more N/A mods, but weather never seemed to cooperate. I finally got tired and decided to spray. I hope you don't give up on your goal like I did.
If you do decide to run on stickier tires like DRs or slicks, make sure you launch higher than 2500. I'm going to guess you'll bog regardless, though.
BTW, work on your R/T and with your consistency and your knowledge on dialing in, you'll do extremely well (better than now). Which light - sportsman or pro tree - do you usually run?
And as far as you spending little time in 1st and 2nd, it should be the same as the 6M/Ts. It seems you're good to go there. So, I'm definitely stumped.
Running 12.5 on street tires with wheel diameter of 19" will be very hard (well, at least your trap would indicate that, but we all know your car's just different). I tried to run a 12 sec pass N/A with only 4 mods and slicks a while back, but I only got down to 13.2. Since then, I've added more N/A mods, but weather never seemed to cooperate. I finally got tired and decided to spray. I hope you don't give up on your goal like I did.
If you do decide to run on stickier tires like DRs or slicks, make sure you launch higher than 2500. I'm going to guess you'll bog regardless, though.
BTW, work on your R/T and with your consistency and your knowledge on dialing in, you'll do extremely well (better than now). Which light - sportsman or pro tree - do you usually run?
#1798
350Z-holic
iTrader: (25)
Ooh, Walt, you just made a big no-no for drag racing. NEVER drive through the water box when you have street tires on. You should not only go around for your own traction, but for others who are using slicks so they don't slip on the water you dragged through the 1/4. You should go around the water box, then back up into it. Spin the wheels for a split second, get out of the box, and then try to warm up your tires a little bit. I know you're doing well with launching, but street tires shouldn't see much water when drag racing for any reason other than clean the debris off.
And as far as you spending little time in 1st and 2nd, it should be the same as the 6M/Ts. It seems you're good to go there. So, I'm definitely stumped.
Running 12.5 on street tires with wheel diameter of 19" will be very hard (well, at least your trap would indicate that, but we all know your car's just different). I tried to run a 12 sec pass N/A with only 4 mods and slicks a while back, but I only got down to 13.2. Since then, I've added more N/A mods, but weather never seemed to cooperate. I finally got tired and decided to spray. I hope you don't give up on your goal like I did.
If you do decide to run on stickier tires like DRs or slicks, make sure you launch higher than 2500. I'm going to guess you'll bog regardless, though.
BTW, work on your R/T and with your consistency and your knowledge on dialing in, you'll do extremely well (better than now). Which light - sportsman or pro tree - do you usually run?
And as far as you spending little time in 1st and 2nd, it should be the same as the 6M/Ts. It seems you're good to go there. So, I'm definitely stumped.
Running 12.5 on street tires with wheel diameter of 19" will be very hard (well, at least your trap would indicate that, but we all know your car's just different). I tried to run a 12 sec pass N/A with only 4 mods and slicks a while back, but I only got down to 13.2. Since then, I've added more N/A mods, but weather never seemed to cooperate. I finally got tired and decided to spray. I hope you don't give up on your goal like I did.
If you do decide to run on stickier tires like DRs or slicks, make sure you launch higher than 2500. I'm going to guess you'll bog regardless, though.
BTW, work on your R/T and with your consistency and your knowledge on dialing in, you'll do extremely well (better than now). Which light - sportsman or pro tree - do you usually run?