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A4 guys with big stall converter- need verification data proof!!

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Old 05-15-2008, 09:55 PM
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Default A4 guys with big stall converter- need verification data proof!!

Question for some of the posters above with BIG stalls-

Ok the sticky at the top of this forum says if you change gears say from 3.23s to 3.73s with a stock stall, you will pick up about half a second ETs. It also says if you have big stall, and go from 3.23s to 3.73s, you will only pick up .1 to .2 second ETs. I just read other posts how some of you have big stalls AND you claim to pick up big gains with changing gears after already having a big stall converter. I have a friend whom I bought my 01 WS6 from, and he has an A4 car with a Vigilante 3600 stall. He said when he put it in, he gained about .5 as the sticky says, but when he put gears in later on after the stall, he picked up AN ADDITIONAL half second ETs. I thought he was bullcrapping until I read this thread. Does anyone have any proof that defies the sticky whereas you pick up more than .2 after changing gears already having a stall converter?? Please post data or explain what your experiences are!!!!! Thanks.
Old 05-16-2008, 10:50 AM
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I dropped ~.7 in the 1/8th mile with putting in SS3800 and changing 2.73 to 3.73.

Did it at the same time though
Old 05-16-2008, 08:22 PM
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Exactly, not sure if you gained say .5 from the converter, and .2 from the gears, or?? I am planning to put the stall first, but when I order the rear, if I only gain .2 i will keep 3.23s. I would like to know if the guy is serious about dropping .5 in the 1/4 by gears on top of his vig 3600.
Old 05-16-2008, 08:34 PM
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if my car came with 3.23's i would have kept them. 2.73's just suck. i gained .2 in the 1/8th going from 2.73's to 3.42's, i'm sure i might have gained a bit more through the 1/4. i havent been to the track since the stall but i'm expecting .4-.5 off if i can keep the tires from spinning.
Old 05-17-2008, 01:20 PM
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i dropped from a 12.20 with 3.23's to a 11.65 with 4.11's.. but i just think my motor likes tall gear
Old 05-18-2008, 11:17 AM
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Originally Posted by daryn c
i dropped from a 12.20 with 3.23's to a 11.65 with 4.11's.. but i just think my motor likes tall gear
So you dropped that much just by switching gears? I am assuming by your post you already had the stall installed. Wow, that backs up what Bill said his results were.
Old 05-26-2008, 09:09 PM
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anyone else with data??
Old 05-26-2008, 10:55 PM
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it all depends on the set up. In a stock car basically boltons you will only pick up .2 tenths with a normal gear change, keeping weather the same etc.

Converter under normal circumstances you will pick up .5 to .6 tenths.

But when you have a big cam that likes the high rpms you will usually gain more with a gear swap as you get to the higher rpms quicker and stay more in the powerband...

usually there is too many factors to where you cant get an actual factual gain, too many circumstances play into those readings.
Old 05-27-2008, 12:46 AM
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Interesting info
Old 05-27-2008, 01:47 AM
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Originally Posted by camscam02
it all depends on the set up. In a stock car basically boltons you will only pick up .2 tenths with a normal gear change, keeping weather the same etc.

Converter under normal circumstances you will pick up .5 to .6 tenths.

But when you have a big cam that likes the high rpms you will usually gain more with a gear swap as you get to the higher rpms quicker and stay more in the powerband...

usually there is too many factors to where you cant get an actual factual gain, too many circumstances play into those readings.
This guy hit the nail on the head, 3.23 to 3.73 on a ~4000 converter should not net over .2 off your ET but I'd sure as hell like to try it...
Old 05-27-2008, 01:51 PM
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True but what he is saying is that it is possible to pick up more than .2 with a big cam since it will be in the powerband more. Also a person posted above that he picked up .5 after the converter by just changing gears. I wonder if he has a large cam- that might be the missing link what we are searching for.
Old 05-27-2008, 05:47 PM
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Originally Posted by Dave D
True but what he is saying is that it is possible to pick up more than .2 with a big cam since it will be in the powerband more. Also a person posted above that he picked up .5 after the converter by just changing gears. I wonder if he has a large cam- that might be the missing link what we are searching for.
I picked up what I would guess would be 1.5 tenths when i changed to 4.10's over 3.23's after i had my ms3 installed. But I cant really tell the exact number as the conditions were way different. Track prep, sixty foot time, and weather along with weight reduction.

Some claim to pick up 5 tenths but in reality they pick up 2 tenths from weather and 1 tenth in track conditions and 2 in gears. Like i said unless you go to the track run with your gears, change out to new gears at the track and run again it is really hard to exact difference in time by changing gears. 2 tenths is the normal and factual gain in most occasions.
Old 05-27-2008, 06:01 PM
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I have a cam only with a Vig 3600 with 3.23's. The car rips with 3.23's, so I wonder how 3.73 or 3.90 would feel. Key word is "feel" because like said earlier it depends on tire size, and other factors. If I ever bought a 12 bolt or 9" i'd try crazy gears, but I'll just wait until I can have my own Camaro just for the track.



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