In view of limited/particular atonement . . knowing that Christ died to fully save His elect, rather than, as some assert, to make salvation possible for all:
If I ask God to save me, am I not in effect asking for Christ to suffer the penalty for my many horrific sins, which, otherwise, I would suffer myself?
How do I do that if I love Him?
Would love not ask instead that He be spared this burden, if possible?
Asking God to save you is hardly asking for Christ to suffer for your sins!!

Why? Because it was God's eternal good pleasure that the Son should most willingly descend from glory, take upon Himself the body of man, become one of us and suffer the horrors of God's infinite wrath against sin in order to glorify His justice, grace, mercy and love for them whom He predestinated to eternal life in Him. The decision for the Lord Christ to suffer vicariously and substitutionally was from eternity. Calling upon God for salvation has no effect in the actual atoning for sin for "it is finished". Calling upon God in truth is the fruit of regeneration which is given by God as the means of salvation. That "calling upon God" is the evidence of love for God springing forth from the new nature which is inclined toward God.
It is God's prescriptive will,
command, that ALL repent and believe upon Christ for the remission of their sins and that they be reconciled to God. And, that command is also a loving call to seek Him and ask that your guilt be removed in Him who gave of Himself for your redemption. To refuse to do so is to only add to your sin. To refuse to believe that Christ's perfect righteousness is not imputed to one who calls upon God is a heinous sin for it makes God a liar. To refuse to believe that Christ's death cannot save you is yet to increase your sin for it makes God impotent to accomplish His desire to save. Salvation is not a 'possibility' but a 'reality' to all who truly call upon God with a broken heart, for even that is a gift of God. Assurance of that surety is part and parcel of God's great salvation which the Spirit works in the hearts of God's children. Yet, with very rare exceptions, assurance is given gradually over time as one matures in the face and sees the magnificent work has done in you. That work is two-fold: 1) a deeper realization of the depth of corruption and sinfulness that remains in one's heart. 2) the experience of seeing the grace of God through the Spirit working in you which makes your love of God increase day by day. Full Assurance as the Puritan's are known to write about is a rare thing. But true assurance is inseparable from one's faith for the Father never leaves His children as orphans but is always near to uphold them and lead them in their walk of faith.
The Spirit has supplied enough evidence in the inspired Word of God to validate these things which you surely know, right?

Deuteronomy 4:7 (KJV) 7 For what nation [is there so] great, who [hath] God [so] nigh unto them, as the LORD our God [is] in all [things that] we call upon him [for]?
1 Chronicles 16:8 (KJV) 8 Give thanks unto the LORD, call upon his name, make known his deeds among the people.
Psalms 4:1 (KJV) 1 <<To the chief Musician on Neginoth, A Psalm of David.>> Hear me when I call, O God of my righteousness: thou hast enlarged me [when I was] in distress; have mercy upon me, and hear my prayer.
Psalms 18:3 (KJV) 3 I will call upon the LORD, [who is worthy] to be praised: so shall I be saved from mine enemies.
Psalms 50:15 (KJV) 15 And call upon me in the day of trouble: I will deliver thee, and thou shalt glorify me.
Psalms 55:16 (KJV) 16 As for me, I will call upon God; and the LORD shall save me.
Psalms 86:5 (KJV) 5 For thou, Lord, [art] good, and ready to forgive; and plenteous in mercy unto all them that call upon thee.
Psalms 86:7 (KJV) 7 In the day of my trouble I will call upon thee: for thou wilt answer me.
Psalms 99:6 (KJV) 6 Moses and Aaron among his priests, and Samuel among them that call upon his name; they called upon the LORD, and he answered them.
Psalms 105:1 (KJV) 1 O give thanks unto the LORD; call upon his name: make known his deeds among the people.
Psalms 116:2 (KJV) 2 Because he hath inclined his ear unto me, therefore will I call upon [him] as long as I live.
Psalms 116:13 (KJV) 13 I will take the cup of salvation, and call upon the name of the LORD.
Psalms 116:17 (KJV) 17 I will offer to thee the sacrifice of thanksgiving, and will call upon the name of the LORD.
Psalms 145:18 (KJV) 18 The LORD [is] nigh unto all them that call upon him, to all that call upon him in truth.
Isaiah 55:6 (KJV) 6 Seek ye the LORD while he may be found, call ye upon him while he is near:
Romans 10:12,13 (KJV) 12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him. 13 For whosoever shall call upon the name of the Lord shall be saved.