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  1. Whoopee Doo Racing: D16A1 with a SOHC transmission

    Showcase
    This is from a customers turn key build. I apologize for the lack of pictures, I lost of 3/4 of the pictures taken during this project due to a theft. D16A1 block and head 75.5 x 90 custom CP Pistons Scat rods ACL bearings ARP headstuds Cometic .028" headgasket Canton 5.5qt oil pan 1980's huge...
  2. MFactory helical LSD now available!

    7th Gen
    No more retrofitting the Fit/L series LSD. The MFactory D17 helical LSD is now available. Fits all 2001-2005 D17 manual transmissions. PM, email, or call to order.
  3. Free MFactory 3.083 first gear

    Whoopee Doo Racing
    Special has ended. This special will end on 9-13-09 at 11:59 PM EST. Only open to D-Series.org members who joined before 8-13-09 Free MFactory 3.083 first gear when you purchase the following from Whoopee Doo Racing: MFactory LSD (40mm) MFactory differential bearings MFactory final drive...
  4. MFactory 35mm Helical LSD

    Whoopee Doo Racing
    EDIT: To increase interest in these, I've changed the pre-order details. The MFactory 35mm D Series LSD is now available for Pre-Order exclusively at Whoopee Doo Racing. This LSD is for small bearing cable and hydro transmissions (STD, DX, CX, LX, VX, HF). -Made from 100% Pure Australian...
  5. EKboostedY8's S40 build

    Transmission alley
    So John (see thread title for his username) Pre-Ordered an MFactory LSD from me with intentions to install it himself with help from his boss. That didn't work out due to his shop getting busy, so he asked me to rebuild it for him. So here it is. As it was when I picked it up from the freight...
  6. Transmission building

    Whoopee Doo Racing
    Need your stock trans fixed? Parts installed? Custom setup? As MFactory's Official North American Installer, Whoopee Doo Racing is your one stop shop. Transmission building service includes: tear down, inspection, cleaning of all parts, media blasting of case, all clearances checked, diff...
  7. MFactory Final Drives

    Whoopee Doo Racing
    First and second too long on the strip or autocross? Want to have more fun on the way to the daily grind? Keep reading... -Made from 100% Pure Australian Steel, NOT cheap Chinese Steel -Advanced gear geometry designed using industry-leading software puts more power to the ground Available...
  8. MFactory Helical LSD

    Whoopee Doo Racing
    MFactory helical LSD Available fitments: 40mm DOHC ZC (40mm, large axle) 35mm -Made from 100% Pure Australian Steel, NOT cheap Chinese Steel -Precision-machined from High-Tensile Forged Chromoly Steel for increased strength and durability -Only the highest quality Brighton-Best Hardware is...
  9. MFactory LSD Review

    Transmission alley
    So here is my little review of the MFactory D Series (40mm) LSD. This is the prototype unit that I inspected and am currently running in my 96 hatchback. Trans is a EX D16Z6 trans I rebuilt a couple months ago as a backup and decided to use for the testing. Appearance of the diff is great, no...
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