This is a question for all APS TT drivers. If you want to drive with factory setting and lets say to got caught in rain or light snow, how difficult is to drive calmly to get home in one piece without the car qoing sideways when you want to keep it straight? In other words, I have no doubt about the car turning into a monster with that kit, but can it be docile when you want it to be. If not, is there a way to play with the boost setting to be able to turn it down at will?
Thank you all.

 

If you want to drive it like a camry it will behave like one. Driven with restraint it's just like a normal Z. But if you drive it in anger.......

 

Oleg-
The turbo kit only makes it worse if you can't stay off the right pedal. You can still drive conservatively and be just fine. The APS kit doesn't really allow you to "turn down the boost".

Bruce

 

I asked Peter the same question a few months ago before I ordered my APS TT kit. He said it is quite easy to control the boost with the throttle. As long as you keep the throttle light and under 3000 rpm's it should not be a problem. I have to contend with some snow in my area....so it is a valid concern for sure. And no....there is no way to turn down the boost.

 

just don't push it go slowww..

 

The boost is based by load and accelerator pressure I believe. Im no Tuner or "mechanic" for lack of a better word. I don't consider these guys mechanics because they are all awesome to be able to tune these cars like this. If you ease into the throttle it will not boost. Its only when he hit it hard or dependant on your throttle speed. Know what i mean? If you get on it hard it boost. Take it easy no boost drives like normal. I thought the same thing but its really an awesome kit.

 

thats correct..

turbochargers will not generate intake pressure if your driving the car like an old man. some peoples normal driving is so conservative that the turbos would never even spool... its not like you get 450rwhp at 15% throttle... a turbo 350z is identical in driving characteristics to a non turbo 350z until you put the engine under enough load to spool the turbos fast enough to actually build some pressure. this is not an attribute of any specific kit, or any type of planning... this is just how turbos are, and any turbo system on any car will behave the same.

 

not to change the subject but i was jus wondering...with the APS or any turbo kit for the Z...when racing on that high end, does it pull like a wild turbo supra does or not and is there any problems getting passed 160 with jus out of the box settings? do i need any kind of reflash?

 

First of all, I don't have a turbo kit yet and if it starts to snow I know I'm going to die. It only happened to me once that it snowed when I was at my friend's house and there was just a coating over the streets. I was all over the road and I was driving no more than 15-20mph. I have the stock tires on my G. I know snow tires would help but I still know that our cars are not capable of driving in the snow at all.

 

while many have driven their Z/G thru the winter with no other option, I would strongly suggest not doing do. These cars are just downright dangerous in the snow.

z33boi: while racing on the high end, any highly modified supra will completely dominate you until you build the engine and make some SERIOUS power... but it really depends on the supra you are talking about... I guess while there are countless at 600-900whp, you are most likely to run into 400-500hp ones... which are no problem... your desire to break 160mph will be easy as long as you dont have a speed limiter, but even a track edition Z is very unsafe at those speeds... you need to have some major upgraded brakes and wheels/tires and every suspension mod available before even trying it... I got all that stuff and the car is rock solid at 160... but i went around 140 on stock suspension and brakes and I would have had to be a retard to feel safe like that.

 

I dont do it to often , but My G35 with stock suspension felt really stable at 145mph . But yes , I would want alot of upgrades if I did it often

 

Good point, I did 152 on the way back from LA and yes the brakes were my only concern. The car felt no different than 120, except for the wind noise. I could easily have done 20+mph more. It was very weird how stable it was. But its completely straight where i was.

 

well yes thats the thing... if your on perfectly flat and straight road then stock suspension is fine... but that doesnt mean its not dangerous... because the car is not prepared to properly handle a situation... such as having to avoid something or stop quickly. I may drive pretty wreckless but I have done everything in my power to make sure I have as much control over the car as possible.

 

I drive home 4 hours from a car show after doing the turbo. If you don't get on it it's like stock if you want it to be. I hit it a few times, and still got 29mpg

 

Many thatnks to everyone who took time to help me with my querry. Not I am wondering, would it not be better idea to put in the PE kit w/a fuel computer, larger injectors and a boost controller, if one would want on-the-fly ajustability? Just curious. Not to take anything away from the APS kit, it is an awesome system nonetheless.
Also, do any light come up on the instrument panel with the kit? Check engine or such?

 

1 I'm originally from NYC.My Z is a pre order trust me you don't want to drive it in the snow been there done that did a 360 on sunrise hwy in Rockville center.This was at 10mph the rear just let loose.Like everyone said the APS TT drives like a normal Z when off boost. I speak from 1st hand experence.Had my TT installed in april.
In 4k miles I've never had a check engine light with or without cats.

 

There wasa comment made that you only have to press it hard/fast to get boost, and if oyu ease into with the throttle pedal, it will stay under boost.

This is definitely not true. You can press the pedal hardand fast, but stop at, say, 30% throttle, it will not develop boost. Alternatively, you can ease into the highe rthrottle positions, and go as slowly as possible, it WILL ABSOLUTELY develop boost when you reach a certain load, as induced by the throttle plate angle (and hence by the accelerator pedal position). Just wanted to clarify this.

My PE is SO responsive, aside from the sound of the turbos spooling up, you cannot detect ANY kind of lag unless you are in 1st gear and under 3000 rpm. Otherwsie, it smoothly goes from vacuum, through 0 boost (1bar absolute) and toward your boost setting (curently ~8lbs).