The motor is handbuilt. Not machine built. No code written to make human hand move. Reason being is how the stuff fits together and tolerances. If it doesnt feel right then it doesnt get paired to the motor. A machine cant feel that. Machines may have forged the parts, but we all know never is anything exactly the same, hence tolerances, whether human made or machine.

And I agree with your above statement, a machine can do a simple task and down shifting with no thought into the engagement speed of the clutch and how it grabs is what the SRM can do. When the SRM is hanging the revs, it wont stop till you engage, what happens when I dont want to fully engage the clutch, but only a partial to use the tranny to scrub off some initial speed then fully engage so as to not unsettle the car? SRM can not do that, it will hang it on you till you release the clutch. I may not want full engagement, but SRM is not going to let you do that.

Not to sound rude, but why not use the brake? It's cheaper to repair than the clutch...

Using the brakes is front bias is it not, may not want to put any load the front, plus less foot work. I mean there are so many variables, I just prefer to be in control of the car. The clutch can be used for very light braking while shifting too, but the SRM will not really let you do that. Has there ever been a time where you dont want to drop right into the gear, but just ease into it to scrub off? Guess it is hard to explain?

true and yes definately understand but it mostly occurs while im pressing the brake and holding the clutch in, so when im doing that im technically not "downshifting" im just shifting into first while the clutch is depressed and slowly coming to a stop. some may ask why not just shift to first after you stop? i do sometimes and sometimes i also shift to first while clutch is engaged and braking at the same time. when i "heel to toe" (when barely moving as in less than 5 mph) it has no problem shifting to first. and of course i wouldnt really call that heel to toe shifting since you bareley have to do anything to match the revs when moving at such a slow speed. but thats hard on the car which i dont like like. sorry for the confusion, as the problem i am having doesnt occur while actually "downshifting" just shifting to first while clutch is engaged. hope this helps its hard to explain

i have the base touring. non sport touring whatever you want to call it. and no SRM :(

I just switched to redline and experience something similar. When I'm coasting to the red light I usually put it I to first as I'm coming to a stop, now I can't do that as easily. I need to be at like 5 mph or less before I can put it into 1st when before it was like 15 mph or less, still not engaging 1st just getting ready for when the light turns green. Not a big deal I just put it in first when I'm stopped or almost stopped

Seen a couple people now having trouble with swapping trans fluid. Wonder if the oem stuff isn't so bad

I'm running redline after a swap at 30K miles (~ two months ago) and zero problems :tup: but I didn't have any problems with OEM either...

I know what you are talking about. But you are thinking theory, I've yet to come to a scenario where I needed to engine brake only from the rear. Braking is front bias because it's more stable. I find engine braking does 99% of everything else traditional braking wouldn't do.

Again, I also undertsand what you are referring to. Blipping the throttle helps match engine speed to the gear you are trying to get in. Easier on the synchro's and smoother. Like others have said, it may be a fluid problem.

When I switched in both my 350 and 370, I experienced more issues. I think it's a good fluid, don't get me wrong, but I've personally had better luck with the OEM stuff. I don't know why- you'd think it would be the other way around.

However, for every person who says there's problems, there's another person who says it's awesome, so it's really anyone's guess.

I had these exact same issues with an Amsoil trans fluid change this winter. I couldn't get the car into 1st even at a DEAD stop, until the trans was warmed up a bit - happened every time I drove the car. I went back to OEM fluid within a week and it all went away, weather conditions were virtually identical too.

Boy, this thread got twisted around! :icon14:

When I first got my Nismo. It would slide into first from second with no problems AT any speed, and no matter how fast I down shifted. Now it's having a harder time doing it. If I take my time, it will go into first at any speed. If I try a quick down shift, it hangs up some. I have to muscle it. Change fluid from stock to Mobil1. Still does it. :icon14:

problem has resolved. i decided to keep the redline fluid for a while before i switched back to stock or any other type. feels normal again, it only took a couple months. so ill be using redline from here on out

It's probably because the weather has gotten warmer. When it gets cold again, you'll experience it. I was in NY when I had my issues and it was bitter cold every day.

possibly but the lowest the temperature would get during winter was maybe lower 40s.