If you haven't replaced the fluid don't expect a shifter to be buttery smooth. I have done early fluid swaps in all of my manuals (370z nismo, focus rs) and have always seen an improvement in shifter feel. The R is no exception, after swapping to Ravenol 75w80 2nd gear is butter.
Can you explain exactly the physical chain of events that will cause what you describe?
I'm not a mechanic so I'm not going to try to argue with you about how cars work. What I can tell you is that I am not saying that the gearbox or the syncros get scrambled or physically impacted, or that there is actual movement in the transmission, or that something something the axle, or whatever it is that you're talking about. All I am saying is that the ratio between the two gears is large, so getting a smooth shift is already more difficult than it might otherwise be - on top that, when you are accelerating and then clutch in, your front end is going to move up and down. If you have certain mods, you can mitigate the amount that your car moves around when you do certain things. My car with Ohlins coilovers and a stiffer rear motor mount is significantly better at staying settled when I clutch in during an aggressive 1st gear pull - the stock car is not very good at staying settled in this example. Since my car stays planted and settled instead of lurching like a stock car, the 1 > 2 is very easy to make.
I'm sure you're right the car is more settled and feels better after your mods. However, part of the shifting system is the human being, and we squishy humans can be affected by all sorts of factors, including how the car feels and responds. I wouldn't be surprised if, after some fresh mods, that it can subtly affect how you drive and your clutch timing (not you in particular but any person). Maybe the driver is concentrating more and enjoying the feeling, maybe the car moving less makes it less distracting. But in terms of what can directly affect the shifting sequence, that seems most likely.
I’m not sure what you’re trying to say. Having the car remain planted and settled directly impacts the ability of the person driving to quickly and smoothly shift from 1 > 2. If I tell you to run down a flight of stairs while holding a glass of water, without spilling the water, it will be difficult because you’re holding the glass, and then the water inside is trying to move around as your body jostles around down the stairs. That is what I am suggesting is happening when people have “second gear grind” - it’s not that anything is defective or “fixable” per se, but rather that the subtle unsettling of the car during that big shift makes it difficult to quickly and smoothly make the transition while also trying to go WOT.
Sorry I was not very good in how I was explaining myself. We are in agreement according to what you are saying in your first paragraph. I also agree deleting the
It falls within the viscosity range of honda mtf, excellent pour point and not overly viscous when cold. So far it has greatly improved shifting for me.
I assume you meant CDV. Deleting the CMC would probably make a difference ?
