Im buying this tranny for my swap!

[noitseuq]

Im buying this tranny

take a look at it if you dont mind and give me your input on how you think it work work in my car with the ratios it has.

thanks

http://forums.nasioc.com/forums/showthread.php?t=1156568

[SVXBart]

i was looking at this one too but don have that much $.
i'm from baltimore too< where are you?i'm in perry hall.
who is doing your swap?AGILE Tuning?
Let me know how it work out for you.

[noitseuq]

i was looking at this one too but don have that much $.
i'm from baltimore too< where are you?i'm in perry hall.
who is doing your swap?AGILE Tuning?
Let me know how it work out for you.


I am in Essex, and im doing the swap in my driveway :-) Im not afaid to work on cars. I have done several motor swaps in the past few years on toyotas. I think this will be a whole lot easier

[longassname]

i think you'd be cruising down the highway at unreasonably high rpms with that trans.....look at that final

[noitseuq]

i think you'd be cruising down the highway at unreasonably high rpms with that trans.....look at that final


What kinda rpm you think say 5th gear @ 60mph?

[noitseuq]

im really confused on the whole ratio thing. someone please clear it up.

how does a wrx tranny with a center diff of 1.1:1 that is meant for a 3.90 rear compatible with a 3.54 rear in the svx

and if i decide to use this 02-03 wrx tranny with the gears below installed

Ratios for gears:
STi RA ratios: 3.083 (1st), 2.062 (2nd), 1.545 (3rd), 1.151 (4th), 0.825 (5th)
Center Diff is a 1.1:1

how will that work with my 3.54 svx rear? cause from the online calculator i found its giving me 5th gear @ 3000 rpm is 73.3mph

someone help me out on this please

[longassname]

the 1.1 is multiplied by the 3.545 which gives you your 3.9 to match your front dif. You should be entering 3.9 for your gear ratio.

The diameter of our tires is 25, so the radius is 12.5, the actual radius under the weight of the car maybe 12 at most.

so at 3k rpms... about 66 mph

http://wahiduddin.net/calc/calc_speed_rpm.htm

Let's say you were in FL where the speed limit on the Interstate is 70 and under 75 you get a warning and you are just a bad bad person so you drive 74ish mph regularly...you'd be crusing down the highway at about 3400 rpms.

[Hocrest]

This was calculated with 225/50-16's

Gears: 1st 3.083
2nd 2.062
3rd 1.545
4th 1.151
5th 0.825 Final 3.900


RPM 1st 2nd 3rd 4th 5th

1000 6.0 9.0 12.0 16.1 22.4
1200 7.2 10.8 14.4 19.3 26.9
1400 8.4 12.6 16.8 22.5 31.4
1600 9.6 14.3 19.1 25.7 35.9
1800 10.8 16.1 21.5 28.9 40.3
2000 12.0 17.9 23.9 32.1 44.8
2200 13.2 19.7 26.3 35.3 49.3
2400 14.4 21.5 28.7 38.6 53.8
2600 15.6 23.3 31.1 41.8 58.3
2800 16.8 25.1 33.5 45.0 62.8
3000 18.0 26.9 35.9 48.2 67.2
3200 19.2 28.7 38.3 51.4 71.7
3400 20.4 30.5 40.7 54.6 76.2
3600 21.6 32.3 43.1 57.8 80.7
3800 22.8 34.1 45.5 61.0 85.2
4000 24.0 35.9 47.9 64.3 89.6
4200 25.2 37.7 50.3 67.5 94.1
4400 26.4 39.5 52.7 70.7 98.6
4600 27.6 41.2 55.0 73.9 103.1
4800 28.8 43.0 57.4 77.1 107.6
5000 30.0 44.8 59.8 80.3 112.1
5200 31.2 46.6 62.2 83.5 116.5
5400 32.4 48.4 64.6 86.7 121.0
5600 33.6 50.2 67.0 90.0 125.5
5800 34.8 52.0 69.4 93.2 130.0
6000 36.0 53.8 71.8 96.4 134.5
6200 37.2 55.6 74.2 99.6 139.0
6400 38.4 57.4 76.6 102.8 143.4
6600 39.6 59.2 79.0 106.0 147.9
6800 40.8 61.0 81.4 109.2 152.4
7000 42.0 62.8 83.8 112.4 156.9
7200 43.2 64.6 86.2 115.7 161.4
7400 44.4 66.4 88.6 118.9 165.8
7600 45.6 68.1 91.0 122.1 170.3
7800 46.8 69.9 93.3 125.3 174.8
8000 48.0 71.7 95.7 128.5 179.3

[longassname]

if you think your mounted tire under the weight of the car stands up to the same height it does unmounted that might be right.

Go look at the tires on your car...look at the height of the tire above the weel and look at the height of the tire below the wheel. I think 12" on the radius is being generous. No need to debate it though...go take a ruler outside and see how far it is from the ground to the center of your wheel....that's the radius to use in the calculation

[noitseuq]

24.858267716535433 is the actual radius of the tire i think


66mph @ 3000 rpm in 5th is good for me. The max posted speed limit here on the beltway is 55mph and i rarely get on I95 which its max posted speed in my state is 65mph

thanks for all your help guys,

[TomsSVX]

You don't want the close ratio box... believe me, I have regretted having one in my car for a while now... The USDM ratios are the best IMHO. Like I said, a low mileage 04 or 05 will be plenty strong, cheaper, and have better final ratios

Tom

[longassname]

I aggree with Tom. If I wanted to go manual I would put in the newest US market 5 speed I could find.

[BAC5.2]

A PPG tranny would be ideal. Espically if you want to make power!

[TomsSVX]

he has decided ultimately to go with an 04 wrx 5mt with 12k on it... Great decision

Tom