What is the verdict on the turbo.

STSTURBO>COM

 

do a search

 

There is no verdict on the STS, only lots of opinions. Do a search, theres already tons of info on here to help you form your own opinion.

 

I'm having a sts turbo installed at the moment. I will let you know what I think about it - Mike

 

We are puttin one on my buddys LS1 now also. Should be done in the week. Ill post results.

 

STS kits are pretty good. I've done a couple (Lt1's, LS1's, GTO's, Denali's, etc.) and they're quite the bang for the buck! A '02 firehawk with a T76 upgrade, boost controller and FMIC put out 490RWHP (at just 6.5psi) before losing fuel at the top ... fuel pump upgraded but not redynoed yet. Lots of sceptics but I'm sold!

 

All the sceptics say "wow, wit hthe turbo that far back, the lag is insane:"

oh really?

put your hand on one end of a garden hose and blow into the other. you feel any hesitation in your breath coming out?

didnt think so.

 

riiiiiiiiiight.....

 

Not to start a war, but I don't see too may f-body STS cars out there putting down the power of a front mount. There is no comparing a kit like the PTK Gen 2 to some rear mount STS. Apples and Oranges. Im not saying STS sucks,blah blah, just that the argument that a rear mount even approaches the efficiency and power of a front mount isn't even worth discussing. STS kits are good in their own right.

 

That depends on the diameter and length of the hose.

Seriously, what aids in spooling of a turbo is the rapidly expanding gasses exiting the head. When the turbo is placed in the rear, the gases are condensing somewhat and the volume is reduced. The turbo will be a hair slower in ramping up to boost. Combine that with the compressor side having to fill a longer intake tube before pressure is realized. In any case, it's not going to matter as much with a V8 as it would with a smaller displacement motor that moves less air. All this happens in fractions of a second, so in reality lag isn't bad. Besides, doubtful that you want full boost right away. It's hard getting traction with a N/A car, let alone under boost.

 

Oh geez not this discussion again....lol. Yes lag is alot more with bigger units.... period. We have already done back to back testing with front and rear mount turbo. This has been discussed to many times to count. Do a search and you will see.

 

Well, i am well versed in dealing with turbo cars, but this will be my first turbo v8, and my first rear mount kit. I know what to expect from lag from regular front mount turbo cars, so ill compare it to lag from this STS kit when the car is running again.

 

Local guy got one on his lt1. He made mistake of buying electronic boost controller and put thru 12psi on stock pistons..took out two ringlands on them and rebuilt motor now with forged pistons,about a point lower compression than stock. Running 5 psi now. The car seems to still have fairly high knock on my scantool and recommended he upgrade right away to bigger pump,bigger injectors,timing retard system ,colder plugs,tuning. He plans on running 10 to 12psi.

I have lots of experience with turbo stuff,own two dsms one of which was highly modded and the new one shortly will be . I have had factory yamaha turbo motorcycles.

I was also skeptical about the sts at first but after a ride and drive have changed my mind. The sts works quite well. Is pretty easy to install and lag was very minimal on the basic turbo. I think it comes on at about 2500 and is full in by 3000 or 3500.Didn't pay tons of attention to that but it hits decent even at 5psi when it comes onlline. It sounds fantastic I think. I like it keeps the engine bay clutter free. I was almost ready to plunk down my money for my 99 trans am for an sts but think the price is a bit too much. It was 3000 when it came out and is now 4000 retail. About a thousand or more too high if you ask me. And you still need to buy extra stuff to really get it to shine.
Meth injection or intercooler ,whatever.

I still say those of you like 5.0 that say the sts is junk either haven't ridden in one or driven one like I have. They dyno decent and some sts cars and trucks are starting to turn some decent times. They do work and like I said quite well. I still believe a front mount is slightly better and am most likely going that route on my 99 ta but I would not hesitate to buy and sts used for a good price. New well up to you but front mounts are not cheap either.

Anyway you guys that are so down on this turbo need to seriously give it a rest. Go ride or drive a car with one actually on it. You might be surprised. And all your theory about heat and lag and all that dont' mean a hill of beans when a sts car smokes your Na or supercharged car. I expect some great track times out of some of these sts cars.The sts gto have hit 10s,sts trucks have gone pretty quick too.

I didn't buy one so far on my 99 for reasons of price,it was overpriced.I didn't want to give up my b and b catback and cut off my kenny brown double diamond subframe connnector on drivers side and didn't like the single tailpipe much either . But still might say heck with it if one came up used at the right price.

 

80TA Does make a point here. You cannot judge these STS systems without actaully driving or getting a ride in one. These rear mounted turbo systems was even voted BEST performance product of the year at the SEMA show. Why would these systems be voted BEST performance product if they were junk???????? I think these turbo systems look wicked in the rear. Once I get my 12 bolt and can run slicks. I will challenge any front mounted turbo system producing around the same amount of power - Mike

 

80TA Does make a point here. You cannot judge these STS systems without actaully driving or getting a ride in one. These rear mounted turbo systems were even voted BEST performance product of the year at the SEMA show. Why would these systems be voted BEST performance product of the year if they were junk??????? I think these turbo systems look wicked in the rear. Once I get my 12 bolt and can run a type of drag radial I will challenge any front mounted turbo system producing around the same amount of power - Mike