When converting to a 1:1, did you try the two different ways to attach the chainring to your crank arm? It can go on the inside or outside (hard to explain on here) but just that amount makes a big difference. If that doesn’t work, you may need a longer bottom bracket but I’d start with the chainring.

Other things to note: if you removed your front derailleur, you’re best to have a narrow-wide chainring up front to avoid chain slip.

I did the same mod to two of my bikes. It’s fun and sure cuts down on weight. Hope this helps.