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Gain from a SS4000

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Old Jan 4, 2009 | 09:02 PM
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Default Gain from a SS4000

Next month I decided I am putting in a converter. A SS4000 Yank. I just had a question or two. Do you guys recommend replacing the flexplate on a 2002 camaro. It looks to be in good shape no cracks. And the second question is how much reduction should I see at the track. My current times are

2.050 60'
8.48 @ 85.1 1/8
13.14 @ 105.40 1/4

Thanks, Jared
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Old Jan 4, 2009 | 10:16 PM
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You might as well change the flexplate while your in there, but you don't have to have it.

You'll need to get some tires or you might go slower. I just picked up .5 in the 1/8 with a PT4000 and was having to ease into the throttle to keep it from spinning. I actually only picked up .2 in the 60 on that run. Once I can hook I'm sure I'll get a few more tenths out of it.
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Old Jan 4, 2009 | 11:54 PM
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I would do it just for insurance. Plus you are already going to have everything apart. Do it if you can
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Old Jan 5, 2009 | 03:45 PM
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I have a ss4000 and my best is 12.28 @ 107 you should get a 30 - 40 with some good tires
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Old Jan 5, 2009 | 05:07 PM
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Does a ss converter gain mph in the 1/4. Right now I'm at 105.4 I am adding a cutout so That should help a little. I would like to run 107-108. Let me know. I just ordered some M/T drag radials.
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Old Jan 5, 2009 | 05:17 PM
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Originally Posted by jarednut4ever
Does a ss converter gain mph in the 1/4. Right now I'm at 105.4 I am adding a cutout so That should help a little. I would like to run 107-108. Let me know. I just ordered some M/T drag radials.
yup a well built converter by a company like yank or circle d will add mph, mine added 1mph over stock...

nice choice on the converter you will be happy, also replace the flexplate, the 02 are pretty thin...
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Old Jan 5, 2009 | 05:32 PM
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Chris do you have the stock rear end and tranny. And do you know if the SS series converters are better then the PT series. Thanks
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Old Jan 5, 2009 | 05:56 PM
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What kind of flexplate are you going with? Anyone ever break one in the 425 HP and less range?
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Old Jan 5, 2009 | 06:28 PM
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I am thinking of just keeping the stock flexplate. I only have around 415 horse or so. Maybe 335 at the wheels. I think it will be ok for a little bit. I just had no clue a mild bolt-on car could run a 1.5x 60'. Thats movin
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Old Jan 5, 2009 | 07:00 PM
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Default ss4000

I was running 13.1 with some bolt-ons put a yank ss3200 and went to 12.60-12.70. Pulled it out restalled to 4000 and went 12.20-12.30 . Same mph 107 60' went from 1.80 to 1.61.
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Old Jan 5, 2009 | 07:05 PM
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All the info on flexplates:

https://ls1tech.com/forums/automatic...upgrade-5.html

I think that changed my mind too. Now have to figure out bolts for it. Looks like TCI is the way to go
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Old Jan 5, 2009 | 07:06 PM
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What was ur mph prior to having a stall, My average mph is 105-105.5. I have a crappy slp cme muffler. I am adding a cutout so I am hoping that will help mph to get me to mid 106's. So then with a converter possible 107. That would make me very happy.
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Old Jan 5, 2009 | 07:16 PM
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105, with 373 and converter 107
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Old Jan 5, 2009 | 07:20 PM
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do 3.73's help a lot or just around a tenth.
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Old Jan 5, 2009 | 07:27 PM
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From 323 to 373 save your money for a 12 bolt . Thats what I did and you can grow into it.
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Old Jan 5, 2009 | 07:33 PM
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Hughes has the better deal $132 for their SFI flexplate at Summit. Run a short belt and you will hit 107 I bet.
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Old Jan 5, 2009 | 07:51 PM
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So even with my 3.23 Do you think I will still run in the 1.6x 60's.
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Old Jan 5, 2009 | 08:02 PM
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Yes you will
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Old Jan 5, 2009 | 10:01 PM
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ss3800 and the switch from 273 to 373 took me from 2.0 60' 8.68 at 87 to 1.58 60' 7.82 at 89. After a dyno tune I haven't 60'd or et'd better but have a best mph of 90.7
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Old Jan 5, 2009 | 10:04 PM
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Originally Posted by jarednut4ever
So even with my 3.23 Do you think I will still run in the 1.6x 60's.
I went 1.61 when my car was similar to yours. You will definatly need a good tire and good track prep.
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