Segulas Of Shnayim Mikrah V'Echod Targum

1) One who reads the week's parsha - shnayim mikrah v'echod targum, in a timely manner (finishing before the Shabbos day meal), will have his days and years lengthened. (Berachos 8a-b, Orach Chaim 285 and many commentators)

2) Doing this specifically on Friday is a segula to be able to connect one's thoughts to his words in his davening on Shabbos. (Bas Ayin)

3) It is said over from tzadikim that reading the parsha - shnayim mikrah v'echod targum is connected to parnasa, therefore, if one does it without any interruption he will have parnasa without interruption.

4) It is accepted among Chabad Chasidim to learn every day Chumash and Rashi from that week's parsha. The Rebbe's of Chabad say that reading the parsha twice and targum once is halacha. Rashi, however, is for Yiras Shomayim since the Shulchan Aruch says "Yirei Shomayim read targum and Rashi, meaning, Rashi is a segula for Yiras Shomayim. (Segulas HaBeShT)

Gaining Admittance To Rashi's Chamber In Olam Habah

Reb Sholom of Belz says that whoever learns and completes Rashi on the Parsha each week is assured that he will be able to sit in the Mesivta of Rashi in Olam Habah.

The Rebbe of Pinsk-Karlin told over the following story:

There were a group of students traveling to Meron, and they flipped over, causing the death of 3 of them, R’L. The chavrusa of one of these students was extremely saddened by the death of his dear friend. One night this dead friend came to him in a dream and said: “Don’t be sorrowful. Remember how we used to learn chumash and Rashi, every week, with great diligence. Now, when I came to the Upper World, they judged that I should be admitted into the chamber of Rashi in Gan Eden, and therefore there is no need for you to be in sorrow”.

(Segulas HaBesht V'Talmidov)