STS: Is it just a bad system.....?

[Django]

I was (once again) perusing Ebay and checking out some already modded Vettes.....(sorry if that offends you)... Thinking about another addition to my collection at some time in the future....

I saw this one:

http://cgi.ebay.com/ebaymotors/ws/e...STRK:MEWA:IT&viewitem=&item=170154810267&rd=1

With the problems that some of our members have had with motors blowing up as a result of STS TT systems, I wondered if it was a compatibility issue with our engines or something inherently dangerous about the STS....

Would appreciate some help.... Thanks, amigos.

D

 

[redice2]

i think its more our vehicle specific but i could be wrong i know of a couple out there on other vehicles without problems but they could just be getting lucky also

 

[Prof]

I believe that STS has had a nightmare with our trucks. In other applications their reputation seems to be fine!

Maybe a corvette forum would be better suited to your question...

I too look longingly at vettes from time to time...and in my amateur opinion the Z06 is one of the hottest machines to ever hit the face of the planet...and with all of the sophistication that one would want in a daily driver.

 

[Django]

I believe that STS has had a nightmare with our trucks. In other applications their reputation seems to be fine!

Maybe a corvette forum would be better suited to your question...

I too look longingly at vettes from time to time...and in my amateur opinion the Z06 is one of the hottest machines to ever hit the face of the planet...and with all of the sophistication that one would want in a daily driver.

I was thinking z06 as well... But one of the Orange County Corvettes owners told me that the new 427 won't take much boost without blowing up... He says 500 at the tire is about as all they recommend....

But the the LS2 motor can handle alot more ponies..... He has a 2002 Z06 with over 700hp.... for sale...(!!)... But I'm not ready to buy another car yet...

D

 

[Prof]

It is intriguing to me that the development process for the '09 Corvette is using a smaller displacement engine with forced induction. It will probably kill the '08 Viper when it debuts in late '08 or early '09.

Isn't it great that the horsepower wars are on again!

 

[Django]

It is intriguing to me that the development process for the '09 Corvette is using a smaller displacement engine with forced induction. It will probably kill the '08 Viper when it debuts in late '08 or early '09.

Isn't it great that the horsepower wars are on again!

...and we are it's beneficiaries.............:rock:

D

 

[HOT RAM]

I was thinking z06 as well... But one of the Orange County Corvettes owners told me that the new 427 won't take much boost without blowing up... He says 500 at the tire is about as all they recommend....

But the the LS2 motor can handle alot more ponies..... He has a 2002 Z06 with over 700hp.... for sale...(!!)... But I'm not ready to buy another car yet...

D

For what it's worth........the previous generation Z06 seems a better value than the new ones.For a daily driver with LOTS of fun factor ,I would take the new C6 with the Z51 handling package,convertible,with paddle shift.If I could afford it or get a decent trade-in for my truck,I would be all over one !! (in Arctic white with red interior):rock:


Comparing skid pad tests,0-60 times,1/4 mile times on the C5 Z06,the new C6 and the new C6 Z06 ,they are very comparable.

Compare value and the C5 Z06 is a winner ,and looks better to me

 

[FlyingLow]

A big problem is the extra fuel injectors and STS-1E (mini VEC). The 4 extra injectors are in the intake pipe. The fuel has to travel around a curve and up into the intake. The STS-1E only controls the extra injectors. STS has unofficially recommend to me to get larger injectors and a VEC to control the fuel. That way you can feed the extra fuel under boost to each cylinder as needed.

Another problem was the over-boost issue. People were seeing 10+ psi. That is why many lost their engine on the dyno. That problem has since been resolved. Some of the guys who lost engines were also trying to run large amounts of boost without an inter-cooler or meth. Every engine that was lost can be attributed to one of the problems listed above. Over-boost, fuel or just Tuning.

 

[Annu Kumar]

It is intriguing to me that the development process for the '09 Corvette is using a smaller displacement engine with forced induction. It will probably kill the '08 Viper when it debuts in late '08 or early '09.

Isn't it great that the horsepower wars are on again!

I can't wait for the wars:rock: Hopefully In the next year if my business picks up I will Probably get a 2007 mercedes benz 65 amg with a renntech tune good for 640 hp adn 840ftlb:rock:

 

[Annu Kumar]

I can't wait for the wars:rock: Hopefully In the next year if my business picks up I will Probably get a 2007 mercedes benz 65 amg with a renntech tune good for 640 hp adn 840ftlb:rock:

I'm sorry the horsepower wars are only for american cars right?

 

[Ram From Hell]

I believe that STS has had a nightmare with our trucks. In other applications their reputation seems to be fine!

Maybe a corvette forum would be better suited to your question...

I too look longingly at vettes from time to time...and in my amateur opinion the Z06 is one of the hottest machines to ever hit the face of the planet...and with all of the sophistication that one would want in a daily driver.

I'm uniquely qualified to answer here. I lost an engine to the STS (overboost), but also have a Z06 with the STS that has been flawless (and a kick in the ass!).

The tuning solution on our trucks was indeed what kept it from being a successful product. Not to bad mouth Roe, but they were responsible for developing that part of the system.

While our engines have their own unique issues, I believe that the STS would have been fine had it been delivered with an appropriate tuning solution (and without the overboost issues!).

 

[Django]

I'm uniquely qualified to answer here. I lost an engine to the STS (overboost), but also have a Z06 with the STS that has been flawless (and a kick in the ass!).

The tuning solution on our trucks was indeed what kept it from being a successful product. Not to bad mouth Roe, but they were responsible for developing that part of the system.

While our engines have their own unique issues, I believe that the STS would have been fine had it been delivered with an appropriate tuning solution (and without the overboost issues!).

What year is the Z06 with the STS in it....?

D

 

[Black1]

I'm sorry the horsepower wars are only for american cars right?

Oh, I don't think so, Annu... Not this time around. :rock:

Tim, maybe ROZ (Jimi) can chime in on this two. He was BIG into the LSx motors before he bought his truck. I've heard lots of good things about STS units on GM LSx motors. A friend of mine has been running one on his T/A for years, and has never had any issues (that I know of...).

 

[SrtBrad]

I'm uniquely qualified to answer here. I lost an engine to the STS (overboost), but also have a Z06 with the STS that has been flawless (and a kick in the ass!).

The tuning solution on our trucks was indeed what kept it from being a successful product.

While our engines have their own unique issues, I believe that the STS would have been fine had it been delivered with an appropriate tuning solution (and without the overboost issues!).

I will be building a turbo setup. Any of your knowledge would be appreciated in my recent thread.

I wonder how many members had the STS turbo setup? How many members had the stock engine and how many had a modified engine. Were the problems with blown motors mostly attributed to fuel air mixtures or boost?

Can we learn from the mistakes and make a solid system for the Srt10. I believe we can.

 

[FlyingLow]

I will be building a turbo setup. Any of your knowledge would be appreciated in my recent thread.

I wonder how many members had the STS turbo setup? How many members had the stock engine and how many had a modified engine. Were the problems with blown motors mostly attributed to fuel air mixtures or boost?

Can we learn from the mistakes and make a solid system for the Srt10. I believe we can.

There are 2 of us still running the STS. One being me and the other is SCVette. I have done lots of research and have traded emails/phone calls with both Sean Roe and Rick Squire (STS). I don't blame Roe as they just delivered what STS asked for. STS should have added the VEC2 with larger injectors and a lot of problems would have been resolved. Instead they tried to go the cheap route and just add 4 extra injectors with a tuning system that could not be tuned. The STS-1E was just a smaller version of the VEC2. It controlled the extra injectors and it was able to trigger meth. But it could not do anything else. The kit also did not come with any software to tune with the STS-1E. Some of the kits were shipped with no tune actually loaded into the 1E. That caused some of the engines to blow. The only way to tune was to send Roe your dyno sheets with A/F and he would send you a new card. At some point customers were supposed to be able to buy the software, but most lost their engines prior to that.

 

[Ram From Hell]

I will be building a turbo setup. Any of your knowledge would be appreciated in my recent thread.

I wonder how many members had the STS turbo setup? How many members had the stock engine and how many had a modified engine. Were the problems with blown motors mostly attributed to fuel air mixtures or boost?

Can we learn from the mistakes and make a solid system for the Srt10. I believe we can.

There are six members, myself included, that I know of. I believe all were installed on stock engines. There was a mix of failures to A/F and boost.

What year is the Z06 with the STS in it....?

D

2001

 

[CarDude]

I am one...1st no tune on the piggy back. Second was overboosting. Finally the piggy back vec thing was not sensing boost. I was at 8 psi of boost but the piggy back thing saw 1-2 psi, so no extra fuel. I went to the dyno 10 different times. Sean Roe sent me numerous tunes...all a failure. He tried to distance himself from the STS product, but he made the tuning solution right or wrong. If it was a success, he wouldn't have tried to distance himself...and he would have let everyone sing his praises. But it was a failure, and no one wanted to really help. They wanted to band-aid the existing system. I should have installed a supercharger...much better support.

What finally happened to my STS system
One day we where driving the truck...and boom...we saw smoke. I tried to restart the truck, but nothing...just more smoke. We thought we lost the motor. We told the guys who installed the turbo to remove everything that was modded. After an extended amount of time at the shop, we got the truck to the dealer, only to find the fuse blew on the fuel pump, which also controlled a relay that told the rear-mounted oil pump to send the oil back up front..instead it dumped into the turbo (hence the huge cloud of smoke...and the inability to start). The dealer fixed the problems and got us back on the road. I never looked back because the entire time the STS was on my truck...I thought it was going to take out my motor. STS bought our system back for $4K. I spent way more on turbo, install, and removal.

Funny thing is the Accusump (which I added because of the STS) took out the motor instead...

 

[TurboFreak]

The reason why the Chevy guys are not having problems with the STS kit is because they have HP Tuners, EFI Live, LS1 Edit etc. to fine tune their vehicles. With a proper tuning solution the turbo would be fine in our trucks.

 

[Roe Racing]

We started to distance ourselves from the kit far before anybody began having problems.
We saw problems on our shop truck with the boost being very inconsistent.
Try tuning when each pull was a different boost curve.
We gave them what they asked for and they were supposed to take it from there.
They initially wanted to run one additional injector like they do on some of their other kits.
We suggested four for a more even pulse stream.
Beyond that, they pretty much used our name to help lend credibility to the kit. Something I didn't sign up for or receive anything for, except grief.
They paid $0 for R&D and $0 for us attempting to assist customers.
How much more could we have tried to do with a kit that wasn't ours?
If you want to blame me or say I'm responsible for something to do with that kit, blame me for selling them the parts they asked for.
I am not responsible for what they did, or didn't do with those parts.
No ill will toward them from my side. It was certainly a learning experience....

Regards,
Sean

 

[Taliban Dan]

I was thinking z06 as well... But one of the Orange County Corvettes owners told me that the new 427 won't take much boost without blowing up... He says 500 at the tire is about as all they recommend....

But the the LS2 motor can handle alot more ponies..... He has a 2002 Z06 with over 700hp.... for sale...(!!)... But I'm not ready to buy another car yet...

D

Neither ls1 or or the ls7 could handle much boost being stock! 8psi at most
the ls7 or 427 is the exact same block as the ls2 just resleved. There is a 06 zo6 TT on ls1tech that uses the c5r block thaat made 1400rwhp. http://www.ls1tech.com/forums/showthread.php?p=6888969&highlight=tire+on+blew+dyno#post6888969
I have seen plenty of 427 zo6 with heads and cam make 560+ at the wheels