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any autos with 373?

This is a discussion on any autos with 373? within the Drivetrain forums, part of the LSx Technical Help Section category; yea, sounds like a good setup. I did the same thing, cept I got a Vig 4200... pretty much the ...

  1. #21
    Member jmhvenom's Avatar
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    yea, sounds like a good setup. I did the same thing, cept I got a Vig 4200... pretty much the same mods... Burns the tires pretty good, a new TC wakes up an automatic!

  2. #22
    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Thats a slightly lower setup than mine.. but if its a daily driver you'll like it... you'll just use up some more gas as you'll be around 2 grand at 60 instead of the usual 1600.
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  3. #23
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    Thanks for the info but im thinking about how well the stock 10 bolt will hold up at the stip (13sec) best time so far, trying for 12vs,or should i forget it and go with a mosser 12 bolt?

  4. #24
    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    I'm running 12.2s consistently.. with the autos.. those 10 bolts are pretty strong.. We have a guy with an auto running N20 mid 10 sec times and JUST finally blew it up.. but I think it was on purpose as he had a 12 bolt ready... If you have the money to blow.. you can go ahead and do it... but the 10 bolt should last you quite a while.

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    So by changing the gears and 3200 stall will this alone get me in the 12vs or do i need a big cam and or Nos?

  6. #26
    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    I dont have a cam... all my mods are in my sig.... was running 12.8 on street tires from just the lid, headers and true duals.... then dropped from there..

  7. #27
    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Personally I'm going to stay away from N2O.. as there are too many potential problems with it.. and plus all the money spent "filling the bottle" can be better spent on other parts. N/A sounds a LOT better to me than FI or N2O.

  8. #28
    Junior Member domestic rice's Avatar
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    well since I went from 2.73 to 3.73 I lost 4 mpg highway (~22 mpg). My city is the same after the swap, ~18mpg.

    Gears are a cheap way to give that low end seat of the pants torque feeling. Well cheap until you blow the 10 bolt up and need a new rear!

    Just make sure you get the thick gear and not the thin with spacer.

  9. #29
    Member jmhvenom's Avatar
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    Well, someone correct me if I am wrong, but going to 3.73 or higher (which really is a lower ratio I believe) the gears just have to get smaller...

  10. #30
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    Quote Originally Posted by KITTvsKARR View Post
    Personally I'm going to stay away from N2O.. as there are too many potential problems with it.. and plus all the money spent "filling the bottle" can be better spent on other parts. N/A sounds a LOT better to me than FI or N2O.
    a nitrous car making 500rwhp is going to be ALOT more streetable than a N/A car with 500rwhp so its all a matter of personal preferance and goals for the car.

  11. #31
    ArtistFormerlyKnownAsMac Silver Streak's Avatar
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    Very true. But sometimes the pride of knowing you built the car to a specific HP without the aid of a power adder would be nice.. which is what I want. Possibly down the road when I am at that point, I MIGHT add something to give it the extra kick... we'll see.

  12. #32
    Senior Member greatwhiteZ28's Avatar
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    in my opinion 500 hp is 500 hp, doesnt really matter to me how i win a race, but kitt vskarr is right, SATISFACTION. but who wouldnt want to spend 1/4 of the cost for n20 then n/a. just my 2cents

  13. #33
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    blue/green chameleon
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    I just went from 2.73's to 3.73's.was like night and day.. 10 bolts are weak but if they are setup right they will take a good bit of abuse..A high percentage of the people who break rearends is due to the way it was setup.

  14. #34
    Slower Than a 3rd Gen juiced99ws6's Avatar
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    Quote Originally Posted by KITTvsKARR View Post
    Very true. But sometimes the pride of knowing you built the car to a specific HP without the aid of a power adder would be nice.. which is what I want. Possibly down the road when I am at that point, I MIGHT add something to give it the extra kick... we'll see.
    I know what your saying though and thats why now I am going for my heads/cam setup.

  15. #35
    LS1-TA schrysler's Avatar
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    When You Went To The 373s Did Your Freeway Acceleration Get Better Or Worse?
    1998 Trans Am Vert, M6, Soon to be full of goodies......

  16. #36
    Member jmhvenom's Avatar
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    better... it will always help accel until you get into more of a top end speed like 130+ I would say

  17. #37
    Junior Member domestic rice's Avatar
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    Yeah no complaints here. Like ^ said, the MPH loss will not come into play until about 30 mph over what I will ever drive. IMO 373 is best gear for an A4 daily driver. Now if you are doing 80% of your driving on highway, might want to use 323 or 273, but for my 80% city, the gears kept the mpg the same as the 273's were.

  18. #38
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    i just installed 3.73 gears in my z28 and along with the sts turbo kit,3800 edge converter and meth kit this car moves alright now. headers and y-pipe friday.

  19. #39
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    would i notice a big difference going from 3.23 gears to 3.73? I current have LT's/ TrueDuals/ lid/ ported TB/224 228 110+2/ SY3500

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    Stall will feel tighter and im sure u would notice a good difference on some good tires.

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