as long as you dont go boost happy, u will be fine for a while... no car will always be fine... after u build the motor to take the beating, its the tranny, after that the rear end, after that something else... just depends how clever u wanna be i guess?

will84, the cheapest kit they have is 3899 i think? (LT1 Kit with Master Power T70, rated 840hp)

one without an intercooler is much cheaper, but i wouldnt wanna run a front turbo with no ic... at least sts kits are pretty decent in temp.

 

STS Turbo kit MSRP is $3795. The PTK kit for $3899 has WAY more potential, not to mention that it includes an A/W intercooler for that price!!!

 

www.jlturbo.com

they sell the sts kit for 3349, thats 450 in diff, u can get a methanol kit for that price

just diffrence of opinions i guess

 

Oh wow, what a bargain... if your LUCKY you might make half of that 840hp the PTK kit is rated at.

anything running only 5#s of boost is going to get decent temps, "front turbo" or not.

 

I put the STS on my '95 last fall. I think it is the way to go because of price, quick install, cool turbo sound, awesome acceleration, and totally stock driveability (and idle). By 3500 RPM, I'm at full boost. I am completely stock motor still, but upgraded the injectors to 37# for better mixture control through the whole rev range. I used tunercat to tune the car (a MUST, if you want perfection), and put in a 2 bar map a while ago to give me better control over spark timing as well.

 

[QUOTE=CJ]Oh wow, what a bargain... if your LUCKY you might make half of that 840hp the PTK kit is rated at.
[QUOTE]
even if ure the LUCKIEST guy on earth, a stock 350 wont take that much of power, just not possible...

plus what was he boosting for a 850rwhp? was it on a stock block?

i can get easy 850 out of a rear turbo too, all i need is my 383 and more boost, and a drivetrain to take the tq from it...

think before u speak

 

I've said it before..... if I wanted boost to come on like it does in a supra, I'll go buy a supra..... If I want boost to come on like it should with 5.7+ liters, I'll build a proper turbo kit with the turbo placed close to the manifolds... You cant fight physics... the STS kit tries hard, and falls well short.

 

the rear mount turbo is a cool idea, but if I was to do it I would rather piece the system together myself as it probably would be cheaper then the STS kit

I just like the ability of turbo cars to change power output by the twist of a dial

I would hardly consider the STS falling "well short" either

 

have you noticed you are in EVERY post sts is? hell, even i'm not or anyone else that has the kit...

you dont have the kit and u are talking about it's cons...

why is it falling short?

ure comparing things to a supra now?

what in the hell is wrong with you, this is a fbody board!!!

www.supraforums.com i think thats where you need to go...

i dont understand, u dont even have FI, and ure posting like u know'em for a turbo kit to try hard and fall short it has to be unreliable, and people who has'em has to complain... what i see is more and more ppl puttin'em on their car everyday, thats hardly calling anything 'falling short'

god i hate when we have kids with permits posting here

 

If you go by the physics- Go by how a turbocharger works and read up. Turbos require a large amount of heat and pressure to spool. By putting the turbo way in the back of the car, the exhaust has cooled. You can compensate for this, and you can do it very easily. But that doesnt change the fact that you will have a long tube that must pressurize before spooling the turbo. You can make it work, but you will have a system that isnt as thermally efficient. The turbo may be much cooler, but how the heck is that a good thing? You might save 20 or 30 degrees off your intake temps, but when they're at 300degrees, you need an intercooler as much as 330! End of Story.

For 840HP you will need a large turbo. Honestly, on an Fbody that requires so many CFM just at cruise and low boost, that means a very large turbo. A plain Garret T-70 on a 5.7L is actually kinda small. We dont run as much boost as Supras do psi wise, but we take up a lot more flow (duh! We have twice the displacement!). I havent seen a rear mount turbo produce 700rwhp yet. I just havent. I dont doubt that it is possible... But I havent seen it yet. You go and buy a PTK kit with methanol and the turbo required to make even 750rwhp on a forged engine with only 355cid and we'll see how things are going then. I doubt you will maintain the price advantage that STS currently has. That and you're gonna need a lot of methanol! And honestly, isnt working on your car just in general fun? I mean guys, comon! Right? Espicially getting a turbo on? Install time on a PTK is more, but not more difficult. If you can tune your own car, you probably can install the PTK kit.

STS systems work. They are now proven to make power. Personally, I dont like the STS sound. Personally, I dont see how a PTK install is so bad. Personally, I can honestly say I believe that an under the hood system is more efficient then a rear mounted. I can look at the books, the physics, and I believe it. I believe that for a quick install, cost effective turbo kit, STS wont do you wrong. I just think that PTK has a better product for "higher power" setups.

And Supras spool late. As do STS kits. That's the comparison. It was shown on the dyno curves that a big 383 Lt1 with forged pistons and a STS turbo was having a similar curve to a 3L Supra. They should be different in shape, just as a turbo 4g63 should have a very different curve then an L98 or an indy car. This just proves that pressurizing a 6' pipe to spool the turbo and a 6' pipe back does add some time delay into the mix. Getting the right engine and cam and heads on a STS would help, but that's a duh for any setup.

And if someone says "that slower spool is an advantage that STS has." I'll smack you with my keyboard. My PTK will spool faster, but if you use a good boost controller, how much boost and when can be controlled.

STS works. Period. PTK works. Period. There are pros and cons to each. I decided to go PTK.

 

Man another one of these posts again??...lol Like I have said before, comparing these kits is like comparing a Powerdyne blower to a Vortech YSi. The powerdyne will work and can make some power, but will fall well short of the big boys.

As for the Supra comment, yes its true, a 346ci V8 LS1 with a GT67 spool almost identical to a Supra 183ci inline 6 with the same GT67...lol

Jose

 

Uh...methanol on a "$3349" STS kit still won't get you 850 horse. As for the difference in opinion, well, it's not opinion. The PTK kit will flat out hand the STS it's *** every time. Period. For just about the same amount of money. Again, I have nothing against STS, but anyone trying to make serious power is gonna go PTK, including myself.

 

WERD

 

I think everyone agrees the PTK kit is the superior one. They claim their LT1 F-body kit will support 850hp, but bang for the buck it's not. The system doesn't even include the turbo. You have to buy it separately, I guess according to how much your motor can handle. But at the base $3499 and then having to spend another $897 for the smallest Turbonetics "street" turbo they had, the STS kit is still a good alternative for those that want a turbo kit on a stock engine and be done with it.

 

Lets face it, I don't care what system you use a stock LS1/LT1 will not
last very long at 850 HP let alone at 550HP. All these guys talking about the PTK kit still don't get the message. The STS kit is hands down the better kit in
a stock application.It doesn't matter what kit you use if you consistently beat on a stock motor with any more than what the manufacturer meant for
it to handle you're gonna be rebuilding motors. Why do you think ford went to forged internals on a 390 HP Motor.
So the the guys with the 'PTK will put out 850 HP on a stock motor' are totally
right and full of s**t.Yea it'll last for one pass down the track.
Anyways I love my STS. Still no lag on a 2500 RPM Launch.

Armin