LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

How to reach the 11's

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Old 07-25-2014, 06:22 PM
  #91  
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Re: How to reach the 11's

Funny! You really killed that yellow thing in the right lane!
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Old 08-06-2014, 02:32 PM
  #92  
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Re: How to reach the 11's

Originally Posted by muddyjimmy
So you ran the 918 springs with the 280XFI cam and didn't have any valve float issues? Or did you have to swap the springs out?
Yes and don't think so.
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Old 08-06-2014, 07:45 PM
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Re: How to reach the 11's

Do you have the stock 10 bolt rear end?
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Old 08-07-2014, 06:51 AM
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Re: How to reach the 11's

Originally Posted by Affliction
Do you have the stock 10 bolt rear end?
Not anymore, but I did use it until I hit low 11's. I had the axle tubes welded to the center section, put in a solid pinion spacer, and a cover with bearing preloads. I believe that helped it survive longer.
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Old 10-13-2015, 10:25 AM
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Open Headers = New Personal Best

I've always wanted to try open headers at the track but driving it there then dropping the cat back and y pipe at the track then putting it back to drive home was not worth it. So, I dropped the cat back at home loaded it on the trailer and hit the track. First run with y-pipe 10.87 DA was only 90 best one I've ever seen. I thought that sucks what a waist of time. So I made another run this time 10.85, still disappointed. Now I took the y-pipe off and ran a 10.84 a new best but still come on. Decided to hit it one more time and boom 10.78 @ 124, DA was 500ish. Now that's better. Since the car's getting faster all day I said one more time, 10.81 @124 DA climbed to 1200ish by this time. Best with full exhaust was 10.85 @123 vs. open headers 10.78 @124.
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Old 04-23-2021, 07:19 AM
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Re: How to reach the 11's

It would be interesting to get an update on your car. I’ve been building a 94 Formula all winter and my goal is 11’s. This was the most interesting thread I️ could find on getting an LT1 4th Gen in the 11’s. I️ realize you went way beyond that, AND it’s been 6 years since the last post, but an update would be nice!
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