Fastest 1/4 mile thread... - Page 2 - CrossfireForum - The Chrysler Crossfire and SRT6 Resource


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  #21 (permalink)  
Old 02-13-2009, 01:16 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP


Brian,

Not to jump off topic, and this may need to be a new thread, but how excatly to you "clamp" the IAT & ECT sensor and what result would this net?
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  #22 (permalink)  
Old 02-13-2009, 02:51 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by BLKFIN
Brian,

Not to jump off topic, and this may need to be a new thread, but how excatly to you "clamp" the IAT & ECT sensor and what result would this net?
As the Intake Air Temps and Engine Coolant Temps rise, the ECU begins to pull timing to protect the engine, thus slower 1/4 mile times. These sensors are really nothing more then resistors that change the signal as temps rise and fall. By replacing the sensor with a fixed (or variable) resistor you can clamp the signal to a constant level - thus the clamp tells the ECU that the IAT is always 70* (or what ever you choose) and not pull timing regardless of how hot the temps get.

It's OK racing short distances - not good for long distances - unless you have a separate IAT sensor/gauge and monitor the temps manually.


http://www.dragtimes.com/Chrysler-Cr...lip-15463.html
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  #23 (permalink)  
Old 02-13-2009, 03:23 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by BrianBrave
As the Intake Air Temps and Engine Coolant Temps rise, the ECU begins to pull timing to protect the engine, thus slower 1/4 mile times. These sensors are really nothing more then resistors that change the signal as temps rise and fall. By replacing the sensor with a fixed (or variable) resistor you can clamp the signal to a constant level - thus the clamp tells the ECU that the IAT is always 70* (or what ever you choose) and not pull timing regardless of how hot the temps get.

It's OK racing short distances - not good for long distances - unless you have a separate IAT sensor/gauge and monitor the temps manually.


http://www.dragtimes.com/Chrysler-Cr...lip-15463.html
Thank Brian! I wonder how much that 104 Gas and 30 Shot of N20 had to do with that timeslip
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Old 03-05-2009, 10:35 AM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Since I had such a great run last night, I figured I should post my time here.

[email protected], 1.782 60' at Orlando Speedworld, 54*, DA: -598

Mods:
Needswings CAI w/ Xstream K&N filter, Code3 SC pulley, LET tune, grill removed.
Done on Goodyear GS-D3s and pump gas.


http://www.dragtimes.com/Chrysler-Cr...lip-17782.html
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Old 03-05-2009, 10:52 AM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Great run Thumper.....
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Old 03-05-2009, 03:42 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by Thumper SRT6
[email protected], 1.782 60' at Orlando Speedworld, 54*, DA: -598

Mods:
Needswings CAI w/ Xstream K&N filter, Code3 SC pulley, LET tune, grill removed.
Done on Goodyear GS-D3s and pump gas.l
Damn! No aftermarket intake manifolds and you're hitting 12.1's!! Wow. I gotta come race in Florida some time. Nice work Thumper!
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Old 03-05-2009, 03:47 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

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Originally Posted by tom2112
Damn! No aftermarket intake manifolds and you're hitting 12.1's!! Wow. I gotta come race in Florida some time. Nice work Thumper!
It's flatter.
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  #28 (permalink)  
Old 03-05-2009, 05:17 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Nice! You gotta love negative DA!!!
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  #29 (permalink)  
Old 03-05-2009, 05:20 PM
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Default Re: Fastest 1/4 mile thread, pleaes make into a sticky HDDP

LSD? Our car doesn't come with a LSD?

Quote:
Originally Posted by BlUEMDsrt6
Might want to atleast add DR= drag radials also, very important. Being rear wheel drive, tires can be a major difference in 1/4 mile times and speeds.

ADD temperature = * (outside), another major factor.

(example) 2006 srt6, convertible, E/ECU/P/DR/LSD [email protected] 85*.
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  #30 (permalink)  
Old 03-06-2009, 07:37 AM
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Default Re: Fastest 1/4 mile thread, pleaes make into a sticky HDDP

Thanks guys! Negative DA and a well preped track = fun times!



Quote:
Originally Posted by Skyshadow
LSD? Our car doesn't come with a LSD?
Nope!
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  #31 (permalink)  
Old 03-06-2009, 08:00 AM
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Default Re: Fastest 1/4 mile thread...

Really? Anyone know where i can get one?
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  #32 (permalink)  
Old 03-06-2009, 09:07 AM
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Default Re: Fastest 1/4 mile thread...

Quote:
Originally Posted by Skyshadow
Really? Anyone know where i can get one?
Well, there's the Phantom Grip. I think that's it. Quaife's don't work in our cars.

Do a search here for quaife. Quite a few good threads.
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Old 03-06-2009, 12:00 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by +fireamx
It's flatter.
And it's downhill as long as the track points south.
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Old 03-06-2009, 03:08 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by newCrossfire
i had a horrible time at the track this past weekened! i was very excited to get out there considering i got my tune and injectors and the car feels really strong. i was at least hoping to shave a couple tenths. but man my first run i picked up 2 tenths. i just cant get the car to launch at any speed now... if i launch it 3000 and up its just all spin no tractionall the way through first. if i let it at slow as soon as my foot goes all the way to the floor the tires break traction all the way to 6200 in first. basically my night was spoiled by lack of decent tires! i still whooped up on all the 4 bangers tho! haha all the SS cobalt guys kept askin me if my car was the supercharged model. it was funny when i told them no because i still beat up on their supercharged cars!!!!
What times did you get newcrossfire? we all know SRT-6s are fast it's more interesting when a N/A starts pulling awsome times. I was thinking of doing the tune and injectors, I'm guessing low 14's high 13's maybe??
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  #35 (permalink)  
Old 03-06-2009, 03:12 PM
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Default Re: Fastest 1/4 mile thread...

Its hard to believe that just over a year ago, there was only one SRT6 running low 12’s. Now, 12.2 seems to be the average time for these cars. I can not wait until the next “break through” and we start seeing all these low 12’s turn into low 11’s on the motor!
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  #36 (permalink)  
Old 03-06-2009, 06:56 PM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by kolevski
What times did you get newcrossfire? we all know SRT-6s are fast it's more interesting when a N/A starts pulling awsome times. I was thinking of doing the tune and injectors, I'm guessing low 14's high 13's maybe??
no you won't be anywhere near 13's with those mods, crackin into the 14's will prove harder than you think. i still don't see how these magazines ran 14.7.

i had probably the most agressively tuned n/a crossfire on this forum and ran a 14.8. i don't know what the injectors are doing, maybe allows you guys to run leaner, but fully modded on a base running a 14.4 would be an accomplishment i think.

btw, my 60' was 1.1, which is pretty damn good considering i was on all seasons, so it wasn't my driving. and i dyno'd pretty high.
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  #37 (permalink)  
Old 03-06-2009, 08:08 PM
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Default Re: Fastest 1/4 mile thread...

Quote:
Originally Posted by Thumper SRT6
Well, there's the Phantom Grip. I think that's it. Quaife's don't work in our cars.

Do a search here for quaife. Quite a few good threads.
Phantom grip builds 2-way? wow, that's a little too much for my daily driver.
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  #38 (permalink)  
Old 03-07-2009, 12:01 AM
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Default Re: Fastest 1/4 mile thread, please make into a sticky HDDP

Quote:
Originally Posted by tom2112
Damn! No aftermarket intake manifolds and you're hitting 12.1's!! Wow. I gotta come race in Florida some time. Nice work Thumper!
Don't forget Thumpers completely stock exhaust too..And he doesn't even have any cooling mods to boot. Chuck's Da Man!
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  #39 (permalink)  
Old 04-15-2009, 07:22 PM
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Default Re: Fastest 1/4 mile thread...

Forgot to update....

12.07 @ 114.89mph, 60' at 1.79. 1/8th was 7.80 @ 90.99mph.

Belt was slipping.....

I can go faster!!


MikeR
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Old 04-15-2009, 08:07 PM
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Default Re: Fastest 1/4 mile thread...

Quote:
Originally Posted by MikeR
Forgot to update....

12.07 @ 114.89mph, 60' at 1.79. 1/8th was 7.80 @ 90.99mph.

Belt was slipping.....

I can go faster!!


MikeR
great time!
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