300rwhp = what @the crank Auto Tranny

Discussion in 'SN95 4.6 Talk' started by hotstang_46, Aug 14, 2007.

  1. hotstang_46 Member

    Member Since:
    Apr 11, 2007
    Message Count:
    446
    Likes Received:
    0
    Trophy Points:
    16
    Well, so I've read lots of threads and people with mods similair to mine are getting around 300rwhp. I should be about that right? And out of curiosity, what would that equate to @ the crank in my auto stang?
  2. hotmustang331 New Member

    Member Since:
    Apr 29, 2004
    Message Count:
    3,038
    Likes Received:
    0
    Trophy Points:
    0
    Works out to exactly 375HP :nice: . Autos zap around 20%.
  3. CobraRed_96_GT Active Member

    Member Since:
    May 20, 2006
    Message Count:
    1,642
    Likes Received:
    0
    Trophy Points:
    36
    sorry to say it, but if you have a stock auto you looking at needing from 368-378 flywheel depending on variables to put down 300 at the wheels
  4. hotstang_46 Member

    Member Since:
    Apr 11, 2007
    Message Count:
    446
    Likes Received:
    0
    Trophy Points:
    16
    you guys know of any good reading for me on air/fuel ratio's and timing adjustements.....My sniper stuff comes in the mail tomorrow and I'll start proceeding cautiously so I can get my car up and going. It's really flat on it's face right now and undriveable, I know I'll need to adjust a bunch....

    any tips or rules of thumb?
  5. the98stang New Member

    Member Since:
    Aug 12, 2005
    Message Count:
    2,416
    Likes Received:
    0
    Trophy Points:
    0
    I think N/a you should shoot for 12.5-13 AFR @ WOT.
  6. ProCharger GT New Member

    Member Since:
    Jun 4, 2004
    Message Count:
    907
    Likes Received:
    0
    Trophy Points:
    0
    I'd also highly recommend a PI torque converter.
  7. hotmustang331 New Member

    Member Since:
    Apr 29, 2004
    Message Count:
    3,038
    Likes Received:
    0
    Trophy Points:
    0
    14.7-1 @ idle and light cruize. Should dip closer to 13-1 as you get closer to WOT and should stay flat @ 13-1 @ WOT. As far as timing, I have no idea...but I would guess 22*s would be a good starting point and adjust up 2*s at a time until you hear a little pinging and back off 2-3 *s...thats how Tim set mine if I recall correctly. (on the N/A tune LOL...not now, its nowhere close to that point)
  8. TGJ New Member

    Member Since:
    Mar 31, 2005
    Message Count:
    1,055
    Likes Received:
    0
    Trophy Points:
    0
    Providing you have the stock driveshaft, stock 4R70W, and stock accessories, if you have 300 RWHP, your engine is putting out 355 HP at the flywheel according to the formula I have. People really have to stop saying that auto's eat 20% of the power and standards eat 15%. That is completely wrong.

    With the mods in your sig, you will be hard pressed to reach 300 RWHP with those mods and your auto transmission.

Share This Page