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HAHN RACECRAFT 2.4 Automatic turbo fully functional!!!

Old Jul 24, 2007 | 04:11 PM
  #76  
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yeah, i would have to agree, mybe better with non stock tires
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Old Aug 4, 2007 | 02:18 AM
  #77  
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Originally Posted by EcoBoost
We've tested this on our prototype, and it's in the low 6-second range.
That sounds awesome to me. I bet with a little weight reduction and some other mods perhaps we could see high 5s?
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Old Aug 6, 2007 | 05:25 PM
  #78  
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It's certainly possible. We've been conservative with the power so far, wanting to analyze the transmission's long-term durability first. So far, so good!

If all continues to go well, we will increase the boost level and use some stickier tires...with all due respect, getting a 13.7 ET out of the stock rubber was pretty awesome, considering the car will just annilihate the stock tires if one goes full throttle from a stop!

Combined with some simple weight redux, sub-6 second 0-60's are then a given!
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Old Aug 7, 2007 | 12:43 PM
  #79  
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do you have some tips on launching, what i did was brake boost as high as i could and launch in "L" Then I shifted to "I" to finish the 1/4 mile. I have falken ziex's 215's on the front so a little wider than stock.
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Old Aug 13, 2007 | 11:26 AM
  #80  
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That's usually the best method, as it keeps the traction control from intervening should you spin the tires (which you almost assuredly will!).

Frankly, the best way is to stage the car on the line at full throttle, then as soon as you let off the brake and the car starts to move, back off the gas HARD (down to 1/4 throttle or so), then roll back into it progressively, trying to achieve full throttle again by the time you shift to 2nd. If the tires begin to spin at any point in 1st, you got back into the gas too fast...let off IMMEDIATELY to get the tires hooked again, then roll back in. If they don't spin at all, be more agressive on the next attempt, until you find that sweet spot where they start to spin. Then hit the gas a little less on the next pass. You have to ride that fine line between wheelspin and max acceleration.

It takes practice, but this is how we launch all our cars that have more power than traction in 1st gear, even with a manual transmission. It's how I got our 5-speed SRT-4 into the 11's on street radials with a 1.82 60 foot time!
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Old Aug 13, 2007 | 12:39 PM
  #81  
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Bill - Have you all sold/put one of these 'automatic' kits in a manual yet?
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Old Aug 13, 2007 | 03:37 PM
  #82  
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sounds good, I'll be heading back to the track when the temps cooldown and i'll try that.
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Old Aug 13, 2007 | 06:04 PM
  #83  
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Originally Posted by DarkSergeant
Bill - Have you all sold/put one of these 'automatic' kits in a manual yet?
We have an installation occurring this week. Stay tuned!
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Old Oct 30, 2007 | 08:41 PM
  #84  
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ecoboost

Any thoughts on a stage 3 , possible in the near future say income tax time ? Would the stage 3 just be an upgrade of the stage 2 meaning could I get the stage 2 and when stage 3 was available i could purchase the the upgrades what type of numbers would you be shooting for on a stage three ?
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Old Oct 30, 2007 | 08:47 PM
  #85  
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nice celica..i see that u got a new 1/4 time in ur sig
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Old Oct 30, 2007 | 09:23 PM
  #86  
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nice i would love that setup and it sound spretty solid and well tested.
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Old Oct 31, 2007 | 02:33 AM
  #87  
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Originally Posted by SSam2.4
Any thoughts on a stage 3 , possible in the near future say income tax time ? Would the stage 3 just be an upgrade of the stage 2 meaning could I get the stage 2 and when stage 3 was available i could purchase the the upgrades what type of numbers would you be shooting for on a stage three ?
Stage III will come in early 2008. It's been our intention to first establish the durability of the automatic transmission in Stage II form first, and so far, so good!

Originally Posted by Jimmys2007CobaltSS/C
nice celica..i see that u got a new 1/4 time in ur sig
Congratulations, celicacobalt! Excellent job on the new numbers...with that 13.70 @ 104.60, you are now the 1/4 mile record-holder for the 2.4 Cobalt! Mighty tasty for an automatic trans car!


Last edited by Hahn RaceCraft; Oct 31, 2007 at 02:35 AM. Reason: Automerged Doublepost
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Old Oct 31, 2007 | 02:19 PM
  #88  
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Originally Posted by EcoBoost
Stage III will come in early 2008. It's been our intention to first establish the durability of the automatic transmission in Stage II form first, and so far, so good!



Congratulations, celicacobalt! Excellent job on the new numbers...with that 13.70 @ 104.60, you are now the 1/4 mile record-holder for the 2.4 Cobalt! Mighty tasty for an automatic trans car!

this is great news for us. I have the boost bug now and would like to get alot closer to 12's on street tires so stage 3 will be another stepping stone to get there. the tranny and engine seem to be holding up great even after all the thourough abuse my car sees. Its also nice to be the fastest known street cobalt 2.4 as well

thanks hahn racecraft for getting me there.
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Old Nov 6, 2007 | 03:30 PM
  #89  
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Ecoboost

Do you have any info on the 5 speed install as far performance , any numbers or did that 5 speed back out ?
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Old Nov 6, 2007 | 03:54 PM
  #90  
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Heck yeah, i cant wait to get this in gear Already been yackin back n forth with Hahn Sales
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Old Nov 7, 2007 | 09:35 PM
  #91  
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Originally Posted by SSam2.4
Do you have any info on the 5 speed install as far performance , any numbers or did that 5 speed back out ?
While we've sold some systems to 5-speed customers, I don't have any feedback as of yet. I do have one 2007 customer who we are working with more directly...what year is your car?
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Old Nov 8, 2007 | 03:32 PM
  #92  
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Yeah it would be cool to see more cobalts with this system. I feel like I am the only one.
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Old Dec 15, 2007 | 05:53 PM
  #93  
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i wish i had the cash and a shop i could trust with doing the job. i would love to have this set up . and i know no body around here would have one haha. probably no one in alberta.
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Old Dec 15, 2007 | 07:33 PM
  #94  
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I wish Hahn could confirm if this kit fit's the Ion and me being in FL I am too far.
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Old Dec 16, 2007 | 04:55 PM
  #95  
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Originally Posted by REDFOCZ
I wish Hahn could confirm if this kit fit's the Ion and me being in FL I am too far.
it probably wont fit perfect but you could get it and have it tweaked to fit. It would be a close fit im sure.
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