At the other site I posted a link to the Modifry yellow box that adjusts for the speedo and odometer difference if you are interested, I'd probably do it just for the odometer part to keep your mileage accurate.
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1. I have looked into it, and I will get a yellow box; Rick's plug and play yellow box was recommended, more expensive, than the "yellowjacket" but worth it.

 

At the other site I posted a link to the Modifry yellow box that adjusts for the speedo and odometer difference if you are interested, I'd probably do it just for the odometer part to keep your mileage accurate.
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1. That was the clincher to getting one.

 

I've had the yellow box and yellow jacket. My yellow box broke, the only way to fix it is to send it to Australia. I got a yellow jacket to replace it. The Yellow Jacket is less expensive and has the advantage of being able to adjust it on the fly. The Yellow Box can only be adjusted with the car stopped.

 

1. Vacillating between the gears, and if I think I need to get the more moderate 4.44, then if I decide that, I think I should save my $2000, b/c it's not that big of a change (pull). And very afraid if I get the 4.44, I'll regret I didn't go for it; you know how I am an extremist: hot or cold.
2. 4.77= high rpms, higher noise on highway, but twice the fun in low gears; the pull is about double the 4.44 down low, according to the gear calculator's numbers. Gas mileage on highway if you drive highway speeds would drop to about 23 mpg, unless you keep it slow, since rpms eat gas. Whatever, the car will be eating 800 more rpms than you normally would be in 6th, so you will lose something, not a concern for Daniel, but mpg has been one of my hobbies for decades.
3. 4.44= some pull in low gears, no extra noise in highway, nominal effect on mpg.
4. If I can't have the 4.77, I feel like not doing anything.
5. Ben said they should have come from the factory with 4.3 at least, but I suppose that would have hurt some of the EPA stats with emissions.
6. Been driving on the highway in 5th gear, not using 6th to try to see how bad it would be. Instead of cruising 3500-4000 rpms for 65 mph-75 mph I'd be running about 4300-4800 rpms to do the same thing.
7. I like the sound of cruising under 4000 rpm, 4000 tops (75 mph).
8. On a trip it might drive me insane, but I think with the top down, the noise wouldn't be heard like with it up.
9. I went back and read an old thread where I processed all this years ago, and those that have the 4.77 love them, mostly.
10. No downside to the 4.44 really, a safer choice, except the $.
11. In my daily work drive, which is how I use the car most of the time with some country fun driving mixed in, of 25 miles, about 10 is getting back and forth to the highway, and the other 15 is on teh highway.
12. Normally, I am shifting between 3-3500 rpms just driving to work. I'm using Vtec none on the way to work, and only about once, maybe twice on the way home.
13. This is my MC replacement, so when I go out once a week when it is summer, and go for a fun drive for 20-40 miles, that is when Vtec is my friend.
14. There is nothing more to be said. It would be so helpful if I could go for a ride if not drive a car that had either one of these done.

 

I have 4.57's in my AP2 and I love them. Pulls harder coming out if turns and easier to keep it in the sweet spot. Highway cruising is no issue at all. 70 mph and I'm at 4100 rpm. I don't notice any gear whine, but I am running an Invidia exhaust, so I lost most of my hearing years ago anyway.

 

I've been driving in 5th gear for the past 3 days to get a feel for t what the 4.77 would be like, and this is with 225/255 Conti A/S tires:
3500 rpms = 54 mph
4000 rpms = 61 mph
4500 rpms = 68 mph
5000 rpms = 75 mph
I know the actual 4.77 affects it 800 rpms in 6th not 1000 rpms, so the actual rpms would be 200 less than what running in 5th reveals.

1. The noise level is not acceptable to me (perhaps it is less with the actual 4.77 6th gear), running high rpms, hearing the engine whine like that hurts me, despite the fact that others say it is OK for the engine life.
2. Having to do nearly 5000 rpms for highway driving bugs me even though I normally drive only 15 miles daily on the expressway, 5 days per week.
3. This is why others have said 4.77 is a sprint gear. I don't sprint much, but when I do, I did want to with zest, but that is only a small part of my driving. Since this is my MC substitute, you can sympathize, some, perhaps, maybe not.
4. If I would pay $2000ish (install and everything), and keep my old pumpkin, instead of getting the $300 core from Ben, and simply put it back it (another $300ish install fee), if I can't live with it. That would be an expensive lesson, my wife would like carpet replaced after 20 yrs.
5. So, if I reject 4.77 for these reasons, that leaves the 4.44.
6. The 4.44 I drove in an AP1 probably brought it up to what an AP2 is (don't know b/c of lack of experience), therefore, the gain in gears 1-3 would be a slight gain, and not the 4.77 brings to the table.'
7. My comparison using the gear calculator, shows that the 4.77 is twice what the 4.44 is, or said differently, the 4.44 is half of what the 4.77 is. Without driving it, or at least riding in a car with it done, I don't know whether that would be enough to justify the expense.
8. My wife last night, when I confess all that had been going on the last few days, mentions we would not spend any $ until the house was paid off this summer. Nothing like a reality check from your favorite person on earth.
9. But, since this started out as a quest for my son, not me (I just got carried away AGAIN), it will be intersting to see what he will do.
10. Anyone with the AP2 with 4.44 input would be great, but I realize that whatever people have put in their cars, they are happy with, and few have done it all, but I think it was hecash that had a great summary, and I don't even remember which site that was.

 

1. Very helpful, thanks.
2. I wish others would post like you did with the different gears what their mph:rps were.
3. I hear the 4.44 are very very similar to the 4.56
4. A guy told me today that with 4.44 in an AP1 he was doing 70 mph @ 4k rpms with the 225/255 tires.
5. I'd love for others to post with their gears, what their mph engagement of Vtec is in gears 1-3, and what their mph was at the max shifting point in the gears.
6. Best I can figure is that an AP2 with 4.77 @ 4k rpms will be doing 62-65.

 

Found this. Hope it helps.

https://www.s2ki.com/s2000/topic/765...s/page__st__20

 

1. It was great! Thanks so much! After reading so much, and talking to Bilman, it is starting to all come together for me: 4.44, not 4.77; I would like to date the 4.77, but not marry like the 4.44.

 

Before i install my kia 4.77 on my 05 Ap2, i ride with a friend that have the 4.44 on is 05 Ap2, i pull more that the stock 4.10 but not as much for me, at 120 km/h 4300 rpm, i decide to go with the 4.77 since 1-1/2 years now and never regret, it pull very more that the 4.44, no noise and 4500 rpm at 120 km/h vs 4300 with the 4.44, not a big difference.

I really love the way it pull, really transform the lazy stock slow 0-4000 rpm, im n/a and it gave me the punch i wish, i will never return to slow stock gear, Ap2 with 4.77 is for me the best combo and only cost 650$ total installed with the yellow box ;-)