Will VG tranny on KA increase top speed?

[twofortyrida1388]

I was wondering since the Z32 was more race bred would the gearing of the VG tranny increase top speed potential of an S13 KA.

[UNISA JECS]

The Z32TT/Q45 diffrential will increase the top speed by alot not sure exactly how much but somewhere I seen a diffrentail gear calculator.

[sc ka24e]

thay actually sold a conversion plate kit for the z32 tranny to ka bellhousing whith perfect shifter alignment a while back , was decently priced, dont know if they still offer it but as far as i know it was done just to be capabale of taking more HP ,TQ

[Bryants95240sx]

If you want more topend you want to change the rear end not the transmission.

[initial_drifter]

get bigger wheels if you havent already

[!Zar!]

You need to change your ring and pinion inside your diff. Not your tranny.

[twofortyrida1388]

Z32TT/Q45 diffrential/ are those a direct fit or will whole rear end be required? While we're talking about top speed what will a stock s13 standard top out at with auto ecu without blowing motor.

[twofortyrida1388]

So Z32 tranny will not increase top speed potential? Its all about the diff?

[!Zar!]

The diff is what determines your final drive ratio.

[projectRDM]

So Z32 tranny will not increase top speed potential? Its all about the diff?

I have an idea. Before asking a question about something you obviously have no clue about, why not do a little research? It's bad enough you're asking this question, but it's worse that you don't even know that a car is speed limited by it's final drive ratio, not the ratios in the transmission. That's basic physics.

Not only that, but how is the Z32 'race bred'? What does that even mean? You could say a D21 pickup is race bred since they're raced in various forms of motorsport, but would that be accurate?

[twofortyrida1388]

You are correct. I do not know gear ratios or any of that. I asked out of curiosity. By race bred I actually ment that the tranny and motor from TT Z32 are powerful and fast. Just a question and since I'm a noob I realize I will receive tons of flaming. Sorry for not being as knoledgable as you. I am only 18 and have had only 1 semester of automotive mechanics. I have much to learn and I will get there eventually. Please try not to beat me down and try to make me feel low.

Sterling

Oh, would this not qualify as a "little research". Whats wrong in asking a specific question than searching an hour or two for something that may not be what I'm looking for? I'm not talking shit or attacking, just stating.

[wangan_cruiser]

lol people out here should help out not flame everybody else when they ask questions.

and for noobs....hehehe try to learn search if u dont want to get flame on

[Kn1ves]

Oh, would this not qualify as a "little research". Whats wrong in asking a specific question than searching an hour or two for something that may not be what I'm looking for? I'm not talking shit or attacking, just stating.

Because searching for an hour or two gives you a more through understanding of everything. So now that you know that its the Final Drive ratio that makes a car faster and not the transmission. What else? Nothing. If you woulda researched you would have known why. Here i'll help you out (www.google.com).

And don't use the excuse about your age. Ive known 16 year olds that know more than you.

AGAIN, before you ask another question regarding to anything. Do some legwork.

[wootwoot]

beside....Longer gears with a low power car will make you even slower once you start getting into high drag. You wont be in the optimum powerband so wont be able to push so quick. But if you're in tech school....Just open the book then! =P

[5t341tH]

if ur still noob (like me) u can go check out this website.
www.howstuffworks.com
theres an auto section u can check out. its pretty interesting

[g6civcx]

Mathematically calculated and gear-limited top speed is determined by the effective top gear ratio, which is obtained by the product of the top gear ratio and the final drive ratio.

The engine turns at a certain angular velocity, which turns the output shaft of the gearbox, which turns the ring gear, which turns the wheels. All of these together determine the vehicle's top speed.

Other factors such as drag, slip, rounding errors, etc. also affect top speed as well.

To answer your vague and indefinite question from the first post, it would depend on how your S13 is geared right now and what the new gearbox has internally. Most 6 speeds would have a higher OD in 6th than a 5 speed would have in 5th. So you may assume that the thereotical top speed of the vehicle increases with a taller, mathematically lower 6th gear OD. But again it would depend on the individual setup.

Find a spec sheet for both gearboxes. Whichever box has the numerically lowest gear ratio in top gear will yield a higher top speed, and dependent upon other factors discussed above.

[jobestudios]

whats the point?

[S14DB]

Beating civoks on the wagan yo!

[ixfxi]

I have an idea. Before asking a question about something you obviously have no clue about, why not do a little research? It's bad enough you're asking this question, but it's worse that you don't even know that a car is speed limited by it's final drive ratio, not the ratios in the transmission. That's basic physics.

Not only that, but how is the Z32 'race bred'? What does that even mean? You could say a D21 pickup is race bred since they're raced in various forms of motorsport, but would that be accurate?

ah yes, looks like russ has forgotten what its like to be young and stupid. now, he's old and stupid. :-) or atleast old and cranky.

[!Zar!]

It's funny.

Nubs and kids alike want a lower final drive.

While people who actually track their car prefer a higher final drive.

[irax]

I have an idea. Before asking a question about something you obviously have no clue about, why not do a little research? It's bad enough you're asking this question, but it's worse that you don't even know that a car is speed limited by it's final drive ratio, not the ratios in the transmission. That's basic physics.

Not only that, but how is the Z32 'race bred'? What does that even mean? You could say a D21 pickup is race bred since they're raced in various forms of motorsport, but would that be accurate?


actualy a car is speed limited by aerodynamics and its ability to over come it THAT is basic physics.

[twofortyrida1388]

g6civcx thank you very much for the info/help. 5t341tH, howstuffworks is the shit. Kn1ves, those 16yr olds are very lucky then. They prob have family with money, or they have a relative that works on cars that tought them. I got my s13 in late oct. This is the first car I have been able to learn hands on with. I didnt grow up with money or a knoledgable relative, or help of any kind. I have been on my own since I was 17 and just recently have been able to afford to get into drifting/240's. So dont criticize me for not knowing as much as a goddamn 16yr old. Like I said I'll get there. I personally am proud of how much I have learned in the past 5 months. Less than a year ago I could'nt have told you what a throttle body is or vlave float or anything basically. It seems to me no matter how legit a question may be one of you old people/or more knoledgable will shit and step on us who don't know.

[kdashy]

It seems to me no matter how legit a question may be one of you old people/or more knoledgable will shit and step on us who don't know.

How legit do you think this question really is? Is your stock KA topping out already?

[jrocslider]

poor kid... i'll keep the flaming to myself. buy sumthing thats worth it. suspension, idk.... higher top speed on a stock KA... why? i did a 5 speed swap on an old 240 of mine back in the days... kept the auto ecu... removes the top speed limiter. whats the point really? stock KA top speed=136mph (from my past experience)

[twofortyrida1388]

I didnt want this to turn out the way it did. I just had a simple question and it/they were answered. No, z tranny will not increase speed, dif will, learned. A stock ka with auto ecu will top out at 136ish, thank you and also learned. What kind of damage will going 136 do to the KA? This one guy in a built rsx was racing a m3 on freeway(bad idea) the m3 was cruising basically and rsx was pushed pasted the limit and at 165 melted header to block and fried the pistons.

[irax]

I didnt want this to turn out the way it did. I just had a simple question and it/they were answered. No, z tranny will not increase speed, dif will, learned. A stock ka with auto ecu will top out at 136ish, thank you and also learned. What kind of damage will going 136 do to the KA? This one guy in a built rsx was racing a m3 on freeway(bad idea) the m3 was cruising basically and rsx was pushed pasted the limit and at 165 melted header to block and fried the pistons.

I did 6krpm in my auto s13 for 20 minutes and it did fine

[axiomatik]

actualy a car is speed limited by aerodynamics and its ability to over come it THAT is basic physics.

Actually, a car's top speed can be limited by one of three things, and all are basic physics ;) :

1. Speed Limiter: The ECU cuts fuel or spark to prevent the car from accelerating any further.

2. Drag Limited: The car is generating more aerodynamic drag than the engine can overcome, even though the gearing is tall enough to go faster at redline. The more power you have, the higher this limit is.

3. Gearing Limited: The car hits the redline in top gear before reaching it's aerodynamic limit. You will have to re-gear if you want to go faster.

And the mph speed of your car really does not affect the engine's longevity. You could blow your motor at 60 if you tried it in first gear.

[steve shadows]

1. Speed Limiter: The ECU cuts fuel or spark to prevent the car from accelerating any further.

2. Drag Limited: The car is generating more aerodynamic drag than the engine can overcome, even though the gearing is tall enough to go faster at redline. The more power you have, the higher this limit is.

3. Gearing Limited: The car hits the redline in top gear before reaching it's aerodynamic limit. You will have to re-gear if you want to go faster.

I really REALLY doubt very many people (if any) on this board has enough applicable HP to the road to reach gear limited top speed and who would need a longer final to use as well as appropriate TASTEFUL and FUNCTIONAL aero to make a drag limited top speed less of an issue.

Hopefully I can be that guy.

But in the mean time. the z32 gear box is most popular because the gears themselves are larger and the design is fundementally stronger in oem shade.
The SR tranny is usually swapped out for the Maxworx kit for example for high load and high trqoutput drag applications etc.

I want one, go get one if you need it. But to the Original poster...WHY?

[Kn1ves]

g6civcx thank you very much for the info/help. 5t341tH, howstuffworks is the shit. Kn1ves, those 16yr olds are very lucky then. They prob have family with money, or they have a relative that works on cars that tought them. I got my s13 in late oct. This is the first car I have been able to learn hands on with. I didnt grow up with money or a knoledgable relative, or help of any kind. I have been on my own since I was 17 and just recently have been able to afford to get into drifting/240's. So dont criticize me for not knowing as much as a goddamn 16yr old. Like I said I'll get there. I personally am proud of how much I have learned in the past 5 months. Less than a year ago I could'nt have told you what a throttle body is or vlave float or anything basically. It seems to me no matter how legit a question may be one of you old people/or more knoledgable will shit and step on us who don't know.

Dude, I don't want to hear your life story. I was one of those 16 year olds that knew more about cars than you did. Why? Because I have a fascination with them which started early, I read about cars, much like you are doing now. Don't use the excuse that you lack money. Magazines are like $5 and internet is free at public library (and at the iPod store :keke:). It's great that you finally started liking cars. But don't use your age as an excuse. Its Ok, whatevers, hop the bandwagon. :love:

If you want to learn, read. If you don't want to get flamed, search.

[g6civcx]

To the original poster, get yourself a good book on motorsports engineering. Go to your local bookstore or Amazon. It will have all the basic info you're looking for.

Asking the forum this type of question won't get you much.

[driftenthusiast]

So you guys are saying that getting a different tranny, with different gears, and 5/6 OD,(im assuming) that his top speed will not increase? Even staying with the stock rear gearing ( in the 4.10 range i think) the gearing in the tranny will have a different output speed to the diff, it is not only the diff that will determine his top speed, even though it is def the simple and economical way to change it. Does anyone actually know the ratio's?

[wootwoot]

z32 300zx
1st-3.214
2nd-1.925
3rd-1.302
4th-1.000
5th-0.752
final drive-4.080
stock tire size 245/45R16
redline 7200rpm I think....
172mph top speed

s13 240sx k24
1st- 3.321
2nd- 1.902
3rd- 1.308
4th- 1.000
5th- 0.759
final drive-4.08
stock tire size-195/60R15
redline 6800
top speed 170mph


http://www.catherineandken.co.uk/sti/tyres.html

if you feel like playing. I think all the info I have there is right. If it isnt, fuck yourself

['90RPS13]

g6civcx thank you very much for the info/help. 5t341tH, howstuffworks is the shit. Kn1ves, those 16yr olds are very lucky then. They prob have family with money, or they have a relative that works on cars that tought them. I got my s13 in late oct. This is the first car I have been able to learn hands on with. I didnt grow up with money or a knoledgable relative, or help of any kind. I have been on my own since I was 17 and just recently have been able to afford to get into drifting/240's. So dont criticize me for not knowing as much as a goddamn 16yr old. Like I said I'll get there. I personally am proud of how much I have learned in the past 5 months. Less than a year ago I could'nt have told you what a throttle body is or vlave float or anything basically. It seems to me no matter how legit a question may be one of you old people/or more knoledgable will shit and step on us who don't know.

So you have to have a family with money to know what the hell your talking about? Guess I am eternally fucked.

Strangely, my family does have money. 1 Uncle and 1 Grandfather that build race cars. One another note, I taught myself EVERYTHING I know about 240sx's. I didnt relay on anyone. I have COUNTLESS hours on Zilvia and FA.com with just reading articles when I have a question. I started with 240's back in Late '05 with my first coupe. I tore it apart and rebuilt it. Alot of countless hr's where I was stumped and pissed throwing wrenches. But thats how you learn. Hands on. Shit, today, I can swap in Sr's in a matter of a day and I can tell you almost anything you want to know about a 240sx. You dont have to have money or a relative crammed in your ass to learn. You have to have the drive and willing to learn. So dont cop out with your broke and have no relatives in mechanics.

To swap a VG tranny into your car, be prepared to spend 2k +. (http://www.mazworxracesupply.com/product_mazworx_vg_to_sr_transmission_adapter_kit. htm) I guess Super GoogleMan was on my side, cause all it took to find that link was 20 seconds, and the phrase, VG Tranny Adapter.

P.S. I am in NC too.

[Ian]

I really REALLY doubt very many people (if any) on this board has enough applicable HP to the road to reach gear limited top speed and who would need a longer final to use as well as appropriate TASTEFUL and FUNCTIONAL aero to make a drag limited top speed less of an issue.

Hopefully I can be that guy.

But in the mean time. the z32 gear box is most popular because the gears themselves are larger and the design is fundementally stronger in oem shade.
The SR tranny is usually swapped out for the Maxworx kit for example for high load and high trqoutput drag applications etc.

I want one, go get one if you need it. But to the Original poster...WHY?

Uhh, I'm pretty sure that you need about 300hp to top out the gears in a 240sx


I've hit my 5th gear rev limiter countless times (5,500 rpm) which is approximately 145 pulling fairly strong.

And aero?
What the fuck do tasteful and functional have to do with anything? Usually the most functional aero is ugly as fuck and looks like it should have a Tide paint scheme on it.

http://www.bvdrangs.com/images/nascar/Tide32Aw.jpg

[slow40]

To swap a VG tranny into your car, be prepared to spend 2k +. (http://www.mazworxracesupply.com/product_mazworx_vg_to_sr_transmission_adapter_kit. htm) I guess Super GoogleMan was on my side, cause all it took to find that link was 20 seconds, and the phrase, VG Tranny Adapter.

P.S. I am in NC too.

^^ i don't think he's got an SR

for KA to VG, xcessive motorsports sells a kit for under $1K :bigok:

http://www.xcessivemotorsports.com/merchant.ihtml?pid=22&step=4

and it's a solid tranny mount!!!

[wootwoot]

300hp to go 170mph?....

['90RPS13]

Its still $975 vs. Maxworks $995? Then you have to get a Clutch, Probably a Custom DriveShaft, Shifter Kit, and being he doesnt know much (no offense), a shop to install it. I would say $2k+ is on the low side.


On the note about a Q45 and a Z32 TT VLSD: They wont work. They are not R200 punkins. IIRC they are R200v?

[Ian]

300hp to go 170mph?....

OK maybe more like 350...but I honestly feel like it doesn't take more than that.

[Racer X]

why not just buy different rear end gears? ive read on some 300z forum that the gears are interchangeable from na to tt.

[wootwoot]

350 at the wheels.

[slow40]

Its still $975 vs. Maxworks $995? Then you have to get a Clutch, Probably a Custom DriveShaft, Shifter Kit, and being he doesnt know much (no offense), a shop to install it. I would say $2k+ is on the low side.


On the note about a Q45 and a Z32 TT VLSD: They wont work. They are not R200 punkins. IIRC they are R200v?

r230 variant, iirc

all you need is a clutch, shifter kit http://www.xcessivemotorsports.com/merchant.ihtml?pid=111&step=4 , and someone to help you, it comes w/ a drive shaft

[gotta240]

You DONT want to gear for top end... With your stock, or semi-stock motor your car will be even slower if you try to increase top speed. Your car will feel even more sluggish off the line and around town.

You'll notice the same effect if you put a tire with a larger OUTER DIAMETER on your car, and then a smaller one... Worlds of difference.

[twofortyrida1388]

Thanks people. I do realize I have to learn on my own. The money thing I ment was reffering to being able to buy parts to add/swap into the car. Thank all of you for input and advice.

[bardabe]

Because searching for an hour or two gives you a more through understanding of everything. So now that you know that its the Final Drive ratio that makes a car faster and not the transmission. What else? Nothing. If you woulda researched you would have known why. Here i'll help you out (www.google.com).

And don't use the excuse about your age. Ive known 16 year olds that know more than you.

AGAIN, before you ask another question regarding to anything. Do some legwork.
I claimmy bragging rights on the 16 year old with knowledge! :bigok:

[nismostyle240]

what about shorting the gear ratios can the same that works for s2000's awork for us in terms of acceleration?

[twofortyrida1388]

So with 300-350ish HP my car can hit around 170? That would be badass because that is the power I was aiming for. 3-350hp of good response.

[!Zar!]

Where the fuck are you going to hit 170mph?

['90RPS13]

The touge dude! Of course, duh! Where else?

Seriously, where the fuck you hitting +130mph? Unless you live on the salt flats, I hope your ass hits a tree before you kill someone or a dog.

['90RPS13]

Bud, its as simple as this.

Russ will own your ass. Russ is Up HERE and your down Here. Russ could drop duece's all day long on you while your standing, thats how bad he pwnz you. :tweak: Take your 29 posts and have fun covered in shit asshole. REP!

[slow40]

internet champ fo life :jerkit:

[projectRDM]

NOT EVERYONE IS AS SMART AS YOU ARE. SIMPLE QUESTION JUST GIVE THE GUY A SIMPLE ANSWER ISN'T THAT WHAT WERE HERE FOR TO HELP EACH OTHER OUT. :fawk:

I take it you meant say we're and not were, as that makes more sense. I know how the common use of the English language confuses you kids these days. I blame your parents, but your teachers were just as much a failure I bet.

As for your remark, you're completely offbase. You are here to cry like a little girl when you and your retard friends get picked on for being fucking idiots, because that's all you seem to be able to do. I am here to give pertinent information where it's needed and correct the countless dozens of posts with bad info that worthless fuckpigs like you spew after jacking off to the new issue of Import Tuner. Now that we're on the same page, thanks for dredging up shit from the last page and adding absolutely nothing new to this thread, you proved my point beautifully.

[CoasTek240]

Bud, its as simple as this.

Russ will own your ass. Russ is Up HERE and your down Here. Russ could drop duece's all day long on you while your standing, thats how bad he pwnz you. :tweak: Take your 29 posts and have fun covered in shit asshole. REP!
make sure you play with russ' balls while your down there, kissing his ass... lol

j/j

[wootwoot]

Hey guys dont get this locked =(
Doing all that tranny information was a pain in the ass! No one even gave me a thank you ya motherfuckers

[Kn1ves]

thank you for the information

[eastcoastS14]

So with 300-350ish HP my car can hit around 170? That would be badass because that is the power I was aiming for. 3-350hp of good response.

just out of curiousity have you ever driven or been in a car with 350whp? I used to be the same way when i was younger had a stock honda and dreamed about puttin down 450 to the wheels bombing down the highway blah blah blah fast and the furious bullshit...realized later on that my s14 with 350whp was more than enough hp for me to daily drive it and if i had been 16 or w.e with a 450hp car id be dead by now....seriously focus on one thing at a time "350whp with good response" put my ass into a telephone pole pretty fucking quick and i wasnt being a jackass or anything...its good to have dreams but take it one step at a time fuck hitting 170 u crash like that they scoop you off the road with a shovel and your ass gets a closed casket funeral...worry about learning about your car and how to drive it...then once you know your shit in and out start modding if you have the money and improve your knowledge and driving skills along the way...post an ask questions when you cant find the answers but search first

[driftking_1987]

The touge dude! Of course, duh! Where else?

Seriously, where the fuck you hitting +130mph? Unless you live on the salt flats, I hope your ass hits a tree before you kill someone or a dog.

good thing i live pretty close to the salt flats then huh...lol :2f2f:

"I take it you meant say we're and not were, as that makes more sense. I know how the common use of the English language confuses you kids these days. I blame your parents, but your teachers were just as much a failure I bet.

As for your remark, you're completely offbase. You are here to cry like a little girl when you and your retard friends get picked on for being fucking idiots, because that's all you seem to be able to do. I am here to give pertinent information where it's needed and correct the countless dozens of posts with bad info that worthless fuckpigs like you spew after jacking off to the new issue of Import Tuner. Now that we're on the same page, thanks for dredging up shit from the last page and adding absolutely nothing new to this thread, you proved my point beautifully."

import tuner sucks...its all about the modified mag yo!

[KA-T_240]

Ya, you don't need to got 170mph. I would consider putting differant gear ratios in that would gear for tops speed, but not to got 180mph, it would be for more MPH in each gear for drag racing. also longer gears on a high HP car well somewhat help with traction.

driving 100+ can be fun, but its stupid. and if you want to do it, prep the car for it first. get suspension and tires and brakes.

[twofortyrida1388]

Thank all of you. I'm really not like the kid with these ridiculous dreams. I think somewhere in between 300-350hp dd is reasonable. I am taking it 1 step at a time. Right now I have done Z32 calipers, seats with 5 point harness, and a basic Tein spring and KYB setup(waiting for coilovers). Tires are coming in a few days. My and other peoples safety is always first. I said "I can hit 170mph" like that not because I am going to but suprised in the fact that my car is capable. I know that no one ever needs to jump in a car with more than 300hp and weighs less than 2800lbs and start driving fast, racing, drifting whatever. I am taking the car to a track every few weeks and learning to "drive". I wouldnt want to jump in my car with 300hp and no experience. Thats deadly. Trust me I am not trying to die, get paralyzed, or get charged with vehicular manslaughter. I am listening to you more experienced. Thanks