5 speed transmission limit ?

[Supras4ever]

Originally Posted by pwpanas

Um, no. Bone stock, the Mkiv TT auto is faster in the 1/4 mile than the 6spd, and more consistent too. Of course, it's more comfortable to drive - try kicking some butt from a stoplight while drinking a coffee in a 6spd. ...
Not at all,imho. Considering what you get, it's a great value.

1) With an n/a you'll really struggle to get 500hp - I'm talking thousands and thousands of dollars and many, many hours of expert time. With an Mkiv TT in good shape, 500hp is very straightforward, and the upgrades are almost trivial. Of course, those upgrades aren't free, but their complexity and cost is far lower than trying to get an n/a to perform equivalently.

2) MOST importantly, a strongly performing car is about SO much more than horsepower alone. What's the good of horsepower if you just sit there and spin with skinny 16" tires, or can't corner when you get going, or can't stop at the end? The Mkiv TT gives you all of that in one package, and the n/a does not.You're VERY wrong about this, if you consider the entire set of upgrades to achieve your ultimate goal. No one wants a powerful car that just sits there and spins and can't go anywhere or stop.
Like everything else in life, a TT is worth the wait. Work hard, save for a few more months, and get the TT if that's the kind of performance you want.
At 500hp, an n/a auto tranny could fail very quickly (weeks or months) especially if you put some good tires on the back. Again, if you run skinny high-mileage tires on 16" rims and just want to do smokeshows, perhaps the tranny will last a while longer.
The 5spd will probably hold 500hp for a good long while. The MKIII Supra with the 5spd has proven very reliable at that level.
Depends if you're planning to roadrace or not.
The oem TT diff is much stronger, but you may not need that if you never go beyond 500hp.
The oem n/a ignition system ...for lack of a better term... sucks donkey balls. You'll need to upgrade it to make a reliable 500hp+ with an n/a-T.

Hey, firstly thank you again for taking your time just to answer me.
Secondly, I want to clarify some things about my future use of the Supra.
I'm a student in London, and this thing means 2 important things:
1) I will only drive the Supra on weekends(+ I don't intend to drag race it for the moment or road race it too much) or MAYBE 1 time during the week if really needed as going through London is way better/convenient with underground/overground/buses
2) For the reason above, I don't have that kind of money to pay for gas every day and that's why TT manuals + upgrading are kind of over my buget for now(until I finish uni and get a job) because as I said before, I only have like 3k $ asside + around 3k $ from my parents; so the only affordable supra is the n/a or maybe if I find a cheap high mileage auto tt(but that means keeping it stock). Saving like 200$ per month for tt means I have to wait years, so i'm better moneywise + learning wise with n/a made turbo until I finish uni, get a job and afford a tt.
I don't even think of buying the n/a auto, all the time I was referring to the 5spd n/a.
You said it will hold 500 hp, well I don't intend on going higher than that because for my first Supra, my first 200hp + car and my first right hand drive car I think it's enough
And why will I struggle so hard to achieve 500hp? You make it sound almost impossible . From what I've read in the last week over and over again, the n/a with a turbo kit(intercooler, wastegate, bov etc) will make over 300 HP and will need the 1.3mm gasket to lower compression, map ecu, upgraded fuel system(fuel pump + 550 injectors) and ebc(to raise a little the boost) to make 500 hp. What I am missing ?
Again, I REALLY KNOW why the TT is way better than the n/a(even with the turbo) but in my situation, as I can't afford the TT soon but can afford upgrading the brakes on the n/a after ~ 2 months, and then something else, piece by piece, I believe this is the best solution.
Feel free to come up with other solutions/ideas!

[pwpanas]

Originally Posted by Supras4ever

...why will I struggle so hard to achieve 500hp? You make it sound almost impossible . From what I've read in the last week over and over again, the n/a with a turbo kit(intercooler, wastegate, bov etc) will make over 300 HP and will need the 1.3mm gasket to lower compression, map ecu, upgraded fuel system(fuel pump + 550 injectors) and ebc(to raise a little the boost) to make 500 hp. What I am missing ?...

You're not missing much other than perhaps the extensiveness of the modifications that you listed. You'll need to remove the exhast manifold and the head...work inside the gas tank, remove and replace the fuel rail, and put a turbo and intercooler into an engine bay that wasn't designed to have one. Oh, most likely you'll run into ignition issues, and you'll have to upgrade that too. Compare this to the Mkiv TT where all you need to achieve 500hp is a downpipe, a ten cent hose clamp, and a free fuel cut modification. Back to your mods though, note that a thicker head gasket in a 2jz-ge does not produce a combustion chamber with the equivalent shape and horsepower potential to a 2jz-gte. You also still may run into detonation issues at lower boost levels, since 1.3mm isn't a very thick head gasket at all. HKS made/makes a 2mm head gasket which may work better.

Here's an example of a complete na-T kit:
http://www.boostlogic.com/catalog/p1...duct_info.html
...and for $5250 you do get your 500hp, but on a car with substandard brakes and suspension. Based on your situation, I still say wait and get a TT. Doing all of these mods to turn an n/a into an na-T is something a student probably doesn't have time for. For what it's worth, I say take more courses and get your degree done sooner, or get two part time jobs and save up for a TT quicker. *shrug* Either way you go, I do wish you the best.

[Supras4ever]

I'm a first year student in a 3 years degree, so I don't understand how I can get my degree sooner. I will get a part-time job as soon as I get my right to work (~3 months), 2 pt jobs means full time and as I'm a student it's impossible. Saving like 3-400 pounds every month means I have to wait 1 year+ just to afford the TT 6 spd Supra...and a few more months just to afford all the mods to make it APU. So the n/a seems for the moment the best solution but who knows, maybe I'll win the lottery .
"note that a thicker head gasket in a 2jz-ge does not produce a combustion chamber with the equivalent shape and horsepower potential to a 2jz-gte"
I know this, but I meant raising the boost from 9-10 psi (don't know the stock n/a boost level) to 15-16 psi, not higher.
"You also still may run into detonation issues at lower boost levels"
I also had in mind better spark plugs + better coils. That should do it, right?
And for all the work I'll ask a friend to help me + I'm somehow a medium mechanic, as I've worked before at my motorcycles (when I used to ride them) + I've helped a friend build a 240sx, from whom I've learned some good things. For the harder things like the gasket kit and the drilling the oil tank, I'll try to find a good mechanic (who worked with supra's before).
Thanx again!

[[SupraLEGEND]]

Originally Posted by Supras4ever

I'm a first year student in a 3 years degree, so I don't understand how I can get my degree sooner. I will get a part-time job as soon as I get my right to work (~3 months), 2 pt jobs means full time and as I'm a student it's impossible. Saving like 3-400 pounds every month means I have to wait 1 year+ just to afford the TT 6 spd Supra...and a few more months just to afford all the mods to make it APU. So the n/a seems for the moment the best solution but who knows, maybe I'll win the lottery .
"note that a thicker head gasket in a 2jz-ge does not produce a combustion chamber with the equivalent shape and horsepower potential to a 2jz-gte"
I know this, but I meant raising the boost from 9-10 psi (don't know the stock n/a boost level) to 15-16 psi, not higher.
"You also still may run into detonation issues at lower boost levels"
I also had in mind better spark plugs + better coils. That should do it, right?
And for all the work I'll ask a friend to help me + I'm somehow a medium mechanic, as I've worked before at my motorcycles (when I used to ride them) + I've helped a friend build a 240sx, from whom I've learned some good things. For the harder things like the gasket kit and the drilling the oil tank, I'll try to find a good mechanic (who worked with supra's before).
Thanx again!

Just an important point I think you should remember: Whether you go for N/A or TT Supra, it's in your best interest to stay away from the overly cheap ones because, you may find they have quite high mileage and were not serviced correctly by the previous owner/s. If they have high mileage and were clearly well maintained, no problem there! This applies more to the TT because, as you know she's Twin Turbocharged and the turbos also have their own lifespan - the lower the mileage the longer she'll run without requiring you to replace anything. Supra is rock solid reliable but, it's always best to keep a low mileage figure in mind when shopping for one. Only problem with that is, the price skyrockets especially for TT 6MT! Rightfully so...

Another thing is, auto TT is considerably cheaper than 6MT. I'd advise you to go with that instead of the N/A if you truly want turbo power. Of course, it won't feel as dynamic as the 6MT If you do go with N/A, try to find an SZ-R (JDM spec and grade) post '95 - they have the same tranny and suspension (Bilstein shocks!!!) as the TT so, turbo'ing that baby will be even more sensible. Did you see any in the UK so far for good prices?

Have you checked out the link I gave you?? Lots of great info there that will answer many of your questions on N/A - TT differences and conversions...

Hope you get it soon

[pwpanas]

Originally Posted by [SupraLEGEND]

....Of course, it won't feel as dynamic as the 6MT

Again, the Mkiv TT Auto, bone-stock, is faster than the Mkiv TT 6spd, bone stock, in the 1/4. Therefore I disagree with you that the Mkiv TT Auto won't feel as "dynamic" as the 6MT. They're both excellent vehicles, and far, far superior to the n/a.

[Supras4ever]

Originally Posted by pwpanas

Again, the Mkiv TT Auto, bone-stock, is faster than the Mkiv TT 6spd, bone stock, in the 1/4. Therefore I disagree with you that the Mkiv TT Auto won't feel as "dynamic" as the 6MT. They're both excellent vehicles, and far, far superior to the n/a.

I think he meant more fun . And again, I'm not interested in 1/4, I'll use the car just saturdays/sundays.

Originally Posted by pwpanas

No. You elminate detonation by running more octane for the same boost level, or proportionally higher octane for high boost levels. Better spark has nothing to do with it.

What about alcohol/meth injection kit ?
The SZ-R is the perfect candidate for the n/a's, but it's rare...
In UK, TT's go from 5500 pounds for auto's and from 9000 pounds for 6spd. And as this is the starting price, these come with high mileage or seem used hard so for a fairly good one add at least 1k more. The n/a's start from ~ 1750 up to 3000 pounds for a very good one. The thing is I could have money for the auto TT(even though I want the manual ), but I have to keep in mind also registration costs, I want to fit an alarm with gps, service check before buying, changing oil, brake pads and etc beside the power increase which is the whole point ...
Pwpanas, what about the SZ-R, you haven't said anything about them. If I could find a SZ-R, I could also put tt calipers + brake disks and I could also rebuild the engine after ~1 year with TT pistons .
I prefer this instead of waiting until like mid 2013 to buy the TT...

[[SupraLEGEND]]

Originally Posted by pwpanas

Again, the Mkiv TT Auto, bone-stock, is faster than the Mkiv TT 6spd, bone stock, in the 1/4. Therefore I disagree with you that the Mkiv TT Auto won't feel as "dynamic" as the 6MT. They're both excellent vehicles, and far, far superior to the n/a.

Are you saying that a 4 speed auto feels better than a 6 speed manual?? I don't mean 1/4 mile performance differences/similarities between the 2 rather, the actual feeling of shifting the 6 speed over the auto. Even though the auto has the cool Manu-mode feature, a full on manual gives you complete control and coupled with it's clutch, allows more racing techniques to be employed - in a nutshell, there's the dynamic I was referring to

[pwpanas]

Originally Posted by [SupraLEGEND]

Are you saying that a 4 speed auto feels better than a 6 speed manual??...

No. I'm saying the 4 speed auto feels just fine, especially when you're beating your competition AND sipping on a beverage while doing it. There's nothing wrong at all with the way the 4 speed auto feels.

[pwpanas]

Originally Posted by Supras4ever

"You also still may run into detonation issues at lower boost levels"
I also had in mind better spark plugs + better coils. That should do it, right?

No. You elminate detonation by running more octane for the same boost level, or proportionally higher octane for high boost levels. Better spark has nothing to do with it.

[[SupraLEGEND]]

Originally Posted by pwpanas

You're not missing much other than perhaps the extensiveness of the modifications that you listed. You'll need to remove the exhast manifold and the head...work inside the gas tank, remove and replace the fuel rail, and put a turbo and intercooler into an engine bay that wasn't designed to have one. Oh, most likely you'll run into ignition issues, and you'll have to upgrade that too. Compare this to the Mkiv TT where all you need to achieve 500hp is a downpipe, a ten cent hose clamp, and a free fuel cut modification. Back to your mods though, note that a thicker head gasket in a 2jz-ge does not produce a combustion chamber with the equivalent shape and horsepower potential to a 2jz-gte. You also still may run into detonation issues at lower boost levels, since 1.3mm isn't a very thick head gasket at all. HKS made/makes a 2mm head gasket which may work better.

Here's an example of a complete na-T kit:
http://www.boostlogic.com/catalog/p1...duct_info.html
...and for $5250 you do get your 500hp, but on a car with substandard brakes and suspension. Based on your situation, I still say wait and get a TT. Doing all of these mods to turn an n/a into an na-T is something a student probably doesn't have time for. For what it's worth, I say take more courses and get your degree done sooner, or get two part time jobs and save up for a TT quicker. *shrug* Either way you go, I do wish you the best.

Phil! You mean I can get the modified RZ 6MT I told you about to 500HP just by doing those few things??????

Speechless...I my favourite car even more now!! Supra never ceases to amaze.