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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K


                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934



Date of Report (Date of earliest event reported) March 17, 2005


                              ACE SECURITIES CORP.
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             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)




           Delaware                                   333-119047                                     56-2088493
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 (STATE OR OTHER JURISDICTION                        (COMMISSION                                  (I.R.S. EMPLOYER
      OF INCORPORATION)                              FILE NUMBER)                                IDENTIFICATION NO.)

6525 Morrison Blvd.,
Suite 318
Charlotte, North
Carolina                                                                                                28211
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    (ADDRESS OF PRINCIPAL                                                                            (ZIP CODE)
      EXECUTIVE OFFICES)


Registrant's telephone number, including area code, is (704) 365-0569.




                                       -2-

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)

[ ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act (17
CFR 240.14a-12(b))

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c))

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                                       -3-


Item 8.01.        Other Events.
                  ------------

Description of the Mortgage Pool

                  On or about March 30, 2005, the Registrant will cause the
         issuance and sale of approximately $169,305,000 initial principal
         amount of ACE Securities Corp. Home Equity Loan Trust, Series 2005-SN1
         Asset Backed Pass-Through Certificates (the "Certificates") pursuant to
         a Pooling and Servicing Agreement to be dated as of March 1, 2005,
         between the Registrant as depositor, Wells Fargo Bank, National
         Association as master servicer and securities administrator, Ocwen
         Federal Bank FSB as servicer, and HSBC Bank USA, National Association
         as trustee.

Collateral Term Sheets

                  Deutsche Bank Securities Inc. (the "Underwriter") has advised
         the Registrant that it has furnished to certain prospective purchasers
         of Certificates certain materials ("Collateral Term Sheets") in written
         form, which are in the nature of data tables.

                  The Collateral Term Sheets have been provided by the
         Underwriter. The information in the Collateral Term Sheets is
         preliminary and may be superseded by the Prospectus Supplement relating
         to the Certificates and by any other information subsequently filed
         with the Securities and Exchange Commission.

                  The Collateral Term Sheets were prepared by the Underwriter at
         the request of certain prospective investors. The Collateral Term
         Sheets may be based on assumptions that differ from the assumptions set
         forth in the Prospectus Supplement.







                                       -4-

Item 9.01.    Financial Statements, PRO FORMA Financial Information and Exhibits

              (a) Financial Statements.

                  Not applicable.

              (b) PRO FORMA Financial Information.

                  Not applicable.

              (c) Exhibits





                                      ITEM 601(A) OF
                                      REGULATION S-K
      EXHIBIT NO.                      EXHIBIT NO.                              DESCRIPTION
      -----------                      -----------                              -----------
                                                            
           1                               99.1                   Collateral Term Sheets (as defined in Item
                                                                  8.01) that have been provided by the
                                                                  Underwriter to certain prospective
                                                                  purchasers of ACE Securities Corp. Home
                                                                  Equity Loan Trust, Series 2005-SN1. The
                                                                  Collateral Term Sheets have been filed on
                                                                  paper pursuant to a continuing hardship
                                                                  exemption from certain electronic
                                                                  requirements.









                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

Dated: March 18, 2005

                                                     ACE SECURITIES CORP.


                                                     By: /s/ Doris J. Hearn
                                                         -----------------------
                                                     Name:   Doris J. Hearn
                                                     Title:  Vice President


                                                     By: /s/ Evelyn Echevarria
                                                        ------------------------
                                                     Name:   Evelyn Echevarria
                                                     Title:  Vice President









                                       -6-


                                  EXHIBIT INDEX





                        Item 601(a) of                 Sequentially
                        Regulation S-K                 Numbered
Exhibit Number          Exhibit No.                    Description                              Page
- --------------          -----------                    -----------                              ----
                                                                                       
1                       99.1                           Collateral Term Sheets (as 6             6
                                                       defined in Item 8.01) that have
                                                       been provided by the Underwriter to
                                                       certain prospective purchasers of
                                                       ACE Securities Corp. Home Equity
                                                       Loan Trust, Series 2005-SN1. The
                                                       Collateral Term Sheets have been
                                                       filed on paper pursuant to a
                                                       continuing hardship exemption from
                                                       certain electronic requirements.