Seljuks pull an ottoman

[octoberman]

Yeah. If you want a quicker digestion of their conquests than OTL, that may be possible if enough things go right, but something equivalent to the Ottomans would still involve some time spent digesting things so they stay in Seljuk hands (and the "right" Seljuk hands) instead of just racing across the straits as soon as the ships are built.

That one is more than likely to end up with it all blowing up in Kilij Arslan's face.

Kilij Arslan was already completing the consolidation of anatolia and subjugating others Turks of the region. Even if he does not race across the straits he will conquer a lot of the Balkans. I guess Seljuks will only attack Constantinople directly after subjugating Most of the Balkans. By that time Seljuk navy would have been good enough to conquer that city because Arslan's own father in law Chaka Bey already built a Navy that was able to contend with it's Byzantine counterpart.

 

[Evil Crusader]

Yet the normans did not conquer anything so the seljuks have no reason for peace with them

why counter speculate against actual history and say it's not like that ? OTL Byzantium before crusades couldn't attack Seljuks who did not have internal opposition that helped Byzantines before, even during and after the crusades. Byzantium didn't even have the troops to occupy the conquests of the first crusade.

Because 'actual history' happens for reasons we can easily identify, thanks to a lot of hindsight, so those reasons also apply to the alternate timeline.
One of these is that most people tend to confront threats and secure their gains rather than keeping conquering in the same direction, and that is what historically Rum did - focus towards Syria, not Constantinople. It's closer, and it's a likelier threat - why spend time mopping up those hopeless Byzantines that seem unable to pose a challenge? I get it feels contradictory, but not everybody is Alexander or Genghiz.

 

[octoberman]

Because 'actual history' happens for reasons we can easily identify, thanks to a lot of hindsight, so those reasons also apply to the alternate timeline.
One of these is that most people tend to confront threats and secure their gains rather than keeping conquering in the same direction, and that is what historically Rum did - focus towards Syria, not Constantinople. It's closer, and it's a likelier threat - why spend time mopping up those hopeless Byzantines that seem unable to pose a challenge? I get it feels contradictory, but not everybody is Alexander or Genghiz.

Rum focused toward Syria because Byzantium was strengthened by crusades

 

[Evil Crusader]

Rum focused toward Syria because Byzantium was strengthened by crusades

In the 1080s and 1090s, before the Crusades, they tried to obtain Syria, then fought against other Turkish lords rather than Byzantium.

 

[Whiteshore]

Would this Seljuk Empire Turkify Anatolia and Greece faster than OTL Anatolia was Turkified or would a more rapid fall of Constantinople paradoxically create a Constantinople-based Turkish Empire which is more "Islamized Byzantium" in flavor ala the Bataids in Moonlight in a Jar which likewise had an earlier fall of Constantinople and the ERE but in which the Bataids are Grecophone Muslims?

 

[octoberman]

Would this Seljuk Empire Turkify Anatolia and Greece faster than OTL Anatolia was Turkified or would a more rapid fall of Constantinople paradoxically create a Constantinople-based Turkish Empire which is more "Islamized Byzantium" in flavor ala the Bataids in Moonlight in a Jar which likewise had an earlier fall of Constantinople and the ERE but in which the Bataids are Grecophone Muslims?

Seljuk Rum was a steppe empire based on the Anatolian steppe. So, it will turkify Anatolia

 

[Whiteshore]

Seljuk Rum was a steppe empire based on the Anatolian steppe. So, it will turkify Anatolia

On that note, with a more rapid conquest of Rhomania, you gave me a possible scenario of a central government in Constantinople comprised of Grecophone Muslims (both Hellenized Turks and native converts to Islam) under a ruler styling himself the "Emperor of the Romans" struggling to control an Anatolia populated by pastorial Turks a few centuries down the line, now you mentioned it.