Does anyone know anything about HKS SLD (Speed Limit Defencer) or how to install?

 

do you really need to go faster than 127 mph? buy a motorcyle.

 

Dont know anything about it. But keep in mind that the car will be gear limited at about 136 or so, and is going to be reaching its hp limit right in there anyway. Wind resistance increases exponentially with speed, which is why it takes so much power to reach higher speeds. The 160 hp stock powerplant isnt going to get you much faster than the stock limit.

 

Well i just turbo my tc and was wondering how fast i could top out my speed

 

Get a camrey tranny it should push it a little higher.

 

I say you probably will max it at 140mph.

 

You dont know what his needs are. He may need to go faster than 127 in the 1/4 one day, and need to raise the limiter a bit. who knows.

 

I have a friend who runs hydra and can't push any higher than 137

 

Unfortunately, the SLD would not work. I tried the Greddy one and didn't work.

What you need is to process the speed signal b4 it gets to the ecu side.

On the Camry, VSS---> combination meter---> ECU. I assume this is the same for the tC.

If you splice the wire at ECU, nothing happens as the signal is read 1st at combination meter. Trick is to intercept the speed signal AFTER VSS but b4 combination meter.

This should clamp both Hz frequency and allow delimiting to take place.

Last time I checked, gearing allows auto to reach 159-161mph if delimited

 

wow. thats good news.. i wonder what RPM you are at when you are at 159..

 

You should hit 6250rpm if you reach 160mph and then the rev limiter cuts in via fuel cut.

Actually, if you used the e-ultimate to raise the rev say to 7000rpm, the calculated speed (if delimited) would again be shifted towards 190+mph

Of course make sure you have the road handling department sorted out and you'll stay on the road and not off it

At those kind of speeds, you'll need alot of downforce not to mention alota HP to be able to push the car to 160-190mph. 330whp ought to cut it?

Stock power you can forget about it.

 

Not sure where you heard that info on the rpm...
135 - 140 or so is going to hit redline in 5th gear. This is extrapolating from a data log I took off mine. In 5th gear you are looking at approx 45.3 rpm per mph. And hp will be limiting it right about there anyway.

 

Theres no way you can go over 157 on stock gears. The highest I have ever had my car up to is 143 and I was well into the 7k range. It was screaming at me to. I need proof before I believe something that outrageous

 

you mean on the track?

cause drag strip.. and 1/4 mile... i doubt he'll even reach close to that speed before he's already done.

 

The calculation was based on full delimit auto tC with 4 forward gears.

Tire size : 215/45-17

1st gear : 3.943
2nd gear : 2.197
3rd gear : 1.413
4th gear : 1.020
Final Drive : 2.740

Redline : 6250rpm

Full speed @ 6200rpm -----> 162mph

Check out http://www.f-body.org/gears/ if you need to see the theoretical/practical speeds you can achieve based on your gear ratios. There are other tabulated gear ratio speed calculator programs other than the above mentioned, google them.

I believe the gear ratios for manual driven are different (they are either shorter to provide better acceleration or the FD is greater?), hence the lower achievable top speed. If not, as I have mentioned earlier, you need alotta power to overcome wind resistance + transmission loss to reach top speed.

 

My numbers are calculated from real life data logs taken from my car running up to 80 mph in 5th gear, so they are valid. So I will stick to my 135 - 140 mph number based on our stock redline and gears. Mine are for a manual, so they may differ from the auto, but as we all know, stock power will never get you to 160

And as far as the 143 comment, so you have no speed limiter? Cause that is the only way you reached 143 on this car, and I would say your speedo is off even if you did based upon the redline and the numbers I have logged from the car.

 

yep you are absolutely right. and you may be right about my speedometer. I think it is 4mph off. I would say in truth it would be 140. I have no speed cut on my car and I was at 7100-7200rpm detonating and it was screaming "help me, help me, your hurting me" as far as automatics go I would know nothing about that. I know they are generally geared differently then 5 speeds. By this I mean wider gears. However as far as the 190 in a tc. Lets be honest now thats never gonna happen with out an unlimited budget.

 

Engifineer, Your logged data, calculations and # looks correct!

For JL56TC, you are also correct! To reach 190mph you need a lotta dough which is most probably out of reach for many...

3 main ingredients why big $$ need to be spent to go beyond 150+mph :

1) Ferraris and Euro sports cars generally have a lower drag co-efficient to combat wind resistance, helps them to achieve beyond 190+mph. tC doesn't have this attribute unfortunately.
2) They typically have a higher HP from factory, min. 360HP (crank). Of course this can be cured through FI means for the tC.
3) Wider gear ratio and bigger engine capacity. Current unavailable until stroker kit arrives.

Some one needs to step up with a solution for the speed cut! Gotta match or better the M3 as the benchmark

 

140 is about the max top out of a tc with the limiter removed, gearing will NOT allow you to go higher so 160 is impossible. as far as a190 in a tc, thats retarded. the car is not even designed to go 160 let alone 190. it would be a death trap waiting to launch into the air.

 

Thats no kidding. If you have ever felt a car get too light on the road at high speed and realized that the steering wheel was of little use, you will be very wary of taking a car designed to run 127 a ton faster than that. That is one reason for the speed limiter on a car, to keep you within safe limits of what the car is built for. A car CAN leave the road (and I mean upwards) at high speeds if it isnt built right.

To show how quickly air resistance builds up, take a look at how much HP and drag reduction it has taken to get to 225, 250, 260 mph etc. It increases rapidly with speed, and takes a lot of hp to overcome.