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Old 02-23-2013, 10:56 AM   #21 (permalink)
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Re: are gears my next step?

How much wheel spin are you getting out of the hole? Your et's really suggest 11 second times and your setup should have you there easily. Sometimes figuring out what's causing your lag in times is better than throwing more parts at it. I really think your tires are your key down... Two decent drag radials on 17's or 18's would really put you there I believe. I don't think building more boost will help without or reducing gears... My issue right now is traction as well, my car was running pretty consistent 12.6-12.7's, did a shorter gear and a stall verter and all I do now is lay rubber everywhere... I know that my times are slower. Now I could spray a 150 shot... With my mods I should be in the 11's too... But without the traction I won't be as all that will change is my trap speed a little in the top end. So unless you have a big boost leak I'd say your gonna need dr's to put that power down. Then you could up your converter and chuck on a two step and go for 10's!! Hehe.. ok that's the devil inside coming out! You will probably want a trailer at that point as I think breaking is more a when than if! Lol... So personally I still say no gear... There are some fast cars out there on a stock SRT gear set.

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Old 02-23-2013, 11:22 PM   #22 (permalink)
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I actually don't get that much wheel spin (if I keep rpms around 3500 or so)
Tires stick good its that dam .5 sec to spool (my 60ft) that kills the entire run.
Although I was running 12 flat before I had to pass emissions. Had to do some tuning alterations in order to pass that and the car has been slower with same hp#. Hmm I wonder if I do have a leak??
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Old 02-24-2013, 12:48 AM   #23 (permalink)
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Re: are gears my next step?

It's definately possible... I just read back and saw where you said you hold your brake and build rpm to launch... My point on flashing is this, I can sit there as well and hold the brake (actually I use my launch control instead) and then launch, problem is these cars do pull timing very quick if you just hold the brake and stall it on the launch... So beware of how long you do that for, a second or two at the most... The problem then is with a turbo it doesn't build boost, its a catch 22... If you raise the revs and hold it and build a little it will be pulling timing past the 60ft, might feel strong but believe me its not as strong as it could be... Something to consider. You said your on nittos... Which ones? Actual dr's or 555's... Nt05's etc? Thing is actual drag radials with low psi, quick flash up and a on the floor launch and that thing should easily run an 11.. its really bugging me your not! Lol... If you have traction then check for leaks, then gosh its a tricky one...

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Old 02-24-2013, 11:46 AM   #24 (permalink)
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We need the timeslip info, what's the 60 foot time, etc.
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Old 02-24-2013, 01:01 PM   #25 (permalink)
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running 555's....i found the info on the axel's and i guess it could be challanger here is what order said...."Speedlogix 215mm Half-shaft Axle Upgrade Kit 06-08 300, Challenger, Charger, Magnum 6.1L".... pretty sure the guy who i spoke to said it would handle up to like 650ish or so..

my 60ft has been 1.7ish to 1.9....let me see if i can find an old slip. Usually im so disgusted i throw them out haha....ya they are all gone. my torque is same around 550 in case anybody is wondering.
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Old 02-24-2013, 01:19 PM   #26 (permalink)
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i used HEMITUNER in long island to tune..i wonder if this all can be fixed with a different tune?
It seems he is in VA now which is out of my driving range..but i see Jim i still at the shop.
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Old 02-26-2013, 02:29 PM   #27 (permalink)
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Tuner said i need a "2 step" in order to build boost off the line,,,,anything??
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Old 02-26-2013, 04:51 PM   #28 (permalink)
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Re: are gears my next step?

Quote:
Originally Posted by cymbrk View Post
Tuner said i need a "2 step" in order to build boost off the line,,,,anything??
Yeah I mentioned that a few posts back... Ok let's look at this at a different angle. If you press the brake and gas how high can you stall the car up before the tires break loose? This is obviously with you race setup (lower air pressure etc). If you get it to the break point and hold it there what boost pressure do you get? Is it spooling up at all? It should be. My old GTP would build 12lbs if I held it there for a second or two... If I just brought the revs up for a second and launched I would catch it mid spool and it would fall on its face. If you can build enough pressure just sitting there do your tires break loose on the launch after spoiling up as much as you can?

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Old 03-01-2013, 11:22 AM   #29 (permalink)
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Quote:
Originally Posted by silver06hemic View Post
Yeah I mentioned that a few posts back... Ok let's look at this at a different angle. If you press the brake and gas how high can you stall the car up before the tires break loose? This is obviously with you race setup (lower air pressure etc). If you get it to the break point and hold it there what boost pressure do you get? Is it spooling up at all? It should be. My old GTP would build 12lbs if I held it there for a second or two... If I just brought the revs up for a second and launched I would catch it mid spool and it would fall on its face. If you can build enough pressure just sitting there do your tires break loose on the launch after spoiling up as much as you can?

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I can sit on the line and really set the brakes in and get the rpms as high as will allow. if i build slowly i can (if i remember from last year) floor the pedal and tires wont break. boost gets to -7....tuner said (without me telling him) that i prob won't get higher than -7 to-3 without a 2 step...(my bad i didnt notice when you mentioned it earlier) if i get to line and just punch gas obviously it will just spin
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Old 03-01-2013, 03:51 PM   #30 (permalink)
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Re: are gears my next step?

Quote:
Originally Posted by cymbrk View Post
I can sit on the line and really set the brakes in and get the rpms as high as will allow. if i build slowly i can (if i remember from last year) floor the pedal and tires wont break. boost gets to -7....tuner said (without me telling him) that i prob won't get higher than -7 to-3 without a 2 step...(my bad i didnt notice when you mentioned it earlier) if i get to line and just punch gas obviously it will just spin
Hmmm... So even running it up your still in vacuum... Hmm... Let me do some reading on other boosted hemis... I have had 4 turbo charged cars from a single turbo conversion 993 to a turbocharged GTP that ran 11's... But.. hemi boost is new to me. I'm not forgetting you but I will post in later....

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