STS Turbos

[DrLivingston1980]

Hey, what's happening? I was just wondering if any of you out there have used STS Turbo kits on your vehicles and if any of you have thought about getting a universal kit for your Tundra. I contacted STS this morning about the 5.7L Tundra to see if they have anything in the works for it. I received an email back in about an hour but it looked automated and said someone would contact me with more information shortly.

I'll keep you guys posted on anything I might hear that of interest to the forum.

Mike

[08CMAX]

Great! Let us know what you find out! Im interested in how they fair in price and numbers against the TRD supercharger! Thanks

[TX Tundra 07]

I would love the STS turbo over the TRD Supercharger....just something about that turbo sound. Unfortunately, we need to be able to tune first...

[can't stop spinning]

Originally Posted by TX Tundra 07

I would love the STS turbo over the TRD Supercharger....just something about that turbo sound. Unfortunately, we need to be able to tune first...

I don't see why someone can't use a piggyback to tune. Most tuner cars work decently with piggybacks. While you wont see the full potential, it'll work.

[TX Tundra 07]

Originally Posted by can't stop spinning

I don't see why someone can't use a piggyback to tune. Most tuner cars work decently with piggybacks. While you wont see the full potential, it'll work.

Soon, I hope. Supposedly there was someone working on a piggyback...

[can't stop spinning]

Originally Posted by TX Tundra 07

Soon, I hope. Supposedly there was someone working on a piggyback...

any piggyback should work, ie dtec, safc II, e-manage, etc. The biggest obstacle I see, is figuring out which wires to splice into.

Piggybacks all do the same thing more or less. They trick the computer, so the end user ends up making more power. The tend to do this by limiting voltage of certain sensors.

[dcg9381]

Originally Posted by can't stop spinning

I don't see why someone can't use a piggyback to tune. Most tuner cars work decently with piggybacks.

Most is right. Want to be the first while tuning with a turbo? :-)

[sxd45]

Its a rear mount with sts, I would much rather have a front mount.

[can't stop spinning]

Originally Posted by dcg9381

Most is right. Want to be the first while tuning with a turbo? :-)

If I had the cash for a custom made turbo kit, and a proper wiring diagram, I probably would give it a shot.

However, I know how much money it takes to make a vehicle fast, and keep it somewhat reliable. I have better things to do then sink 10+k into the truck at this moment.

[djb383]

I'd much rather have the turbo in the back where it's relatively cool vs under the hood where it's already hotter than hell.

[sxd45]

Just wrap it, there are alot of arguments about this so im not gonna get into it, I like front mount and thats all I will say.

[ProCharger]

I 2nd front mount.

[phobos512]

The engine compartment on a Tundra has got just a bit more room than that of oh, I don't know, ANY turbocharged car and yet they still manage to make those work just fine. I don't think there'd be any significant heat issues with an underhood turbo (or two ) on the Tundra.

I'd rather have a supercharger though, this is a truck afterall, I need low-end torque.

[Burnout]

Torque and horse power is added to the over all of what you all ready have.A turbo or supercharger have nothing to do with putting in TQ.or HP at any one given rpm range.It covers the whole rpm range at the same levels.

All that is determined by your cam profiles,lift,duration,and above all the timing of that big ole spark.Advance timing will give you a whole bunch of extra everything depending again on the cam profile,amount of A/F charge you get and most important right now for most of us the octane of the fuel needed for what you are trying to cram into your firing chambers.If you don't know,WELL the more A/F charge you cram into your engine will demand higher octane,clear up to a point that you may not be able to use pump gas with out pre detonation.Plus if these pistons and rods we have are not forged,well you are not going to be able to extract enough.Forced induction will raise the the compression ratio of your engine,the more A/F crammed into each hole will even blow a head gasket if you try to put too much psi in there.The engineer beat around the bush a bit but did say that 8 psi was about the limit and 4/5 would be best.

The new TRD SC raised the HP to 504 at I think 7 psi.I'd say more than that maybe at high rpms and boost could even blow the rods out the bottom of the engine.

[mitch]

Theres another problem with a turbo kit that I see, as far as I can tell there's no custom tuning package available for our trucks. Until we have a way to adjust A/F maps and monitor knock the amount of boost we can push is seriously limited.

If there is custom tuning/scanning software, please, correct me and point me to it.

[phobos512]

Yeah dude, you're funny.

I know a thing or two about power adders and they definitely do not have the same effect over the entire RPM range of a vehicle.

This would be my old engine compartment...That's a 5.7L V8 making 570hp...



There's no reason to be dramatic about blowing engines because we don't have forged rods and a blueprinted crank. There's little experience with power adding on this engine from what I've seen and as people learn they'll see what works.

Originally Posted by Burnout

Torque and horse power is added to the over all of what you all ready have.A turbo or supercharger have nothing to do with putting in TQ.or HP at any one given rpm range.It covers the whole rpm range at the same levels.

All that is determined by your cam profiles,lift,duration,and above all the timing of that big ole spark.Advance timing will give you a whole bunch of extra everything depending again on the cam profile,amount of A/F charge you get and most important right now for most of us the octane of the fuel needed for what you are trying to cram into your firing chambers.If you don't know,WELL the more A/F charge you cram into your engine will demand higher octane,clear up to a point that you may not be able to use pump gas with out pre detonation.Plus if these pistons and rods we have are not forged,well you are not going to be able to extract enough.Forced induction will raise the the compression ratio of your engine,the more A/F crammed into each hole will even blow a head gasket if you try to put too much psi in there.The engineer beat around the bush a bit but did say that 8 psi was about the limit and 4/5 would be best.

The new TRD SC raised the HP to 504 at I think 7 psi.I'd say more than that maybe at high rpms and boost could even blow the rods out the bottom of the engine.

[Burnout]

Originally Posted by phobos512

Yeah dude, you're funny.

I know a thing or two about power adders and they definitely do not have the same effect over the entire RPM range of a vehicle.

This would be my old engine compartment...That's a 5.7L V8 making 570hp...



There's no reason to be dramatic about blowing engines because we don't have forged rods and a blueprinted crank. There's little experience with power adding on this engine from what I've seen and as people learn they'll see what works.

"DUDE" Just what does that mean??????

You are right.The more boost,the more HP and torque,but at what cost.These engines have a built in stress factor,exceed that and your engine or any one part of it is going south.If you have a top PSI of 7 that will have a lower HP and TQ and a lower rpm,however a the rpms build very fast you cannot change the way they are put in the curve.They will rise gradually the same way a NA engine's curve will rise depending on when the cams allow peak HP and TQ.

Look at these engines.They don't put out 381 HP at an idle.Try to pull a hill at 800 rpms and that thing will laugh at you.You have to add A/F to the mix and it gradually picks up power and torque.

Change cam profiles and you change at what rpms you will reach top HP and TQ numbers.Only thing forced induction does is cram more A/F mixture into the engine causing a hotter burn and produces more HP and TQ

You may have had one engine with a blower,but talk to any engine builder and he'll tell you that each component has a stress tolerance that can not be exceeded.

Now if TRD is coming out with a SC that puts out 504 HP I'd say that is not far away from being the limit this engine can with stand.

Call Dave Maxwell at Crane Cams and tell him that Ron that helped test the Crane turbo cams in a 450 HP Dodge Neon told him to explain to you what and how cams and spark advance effect the TQ and HP curve of any engine.
Hell call Gary Howell of Howell Automotive,Rick Moroso about the prototype oil pan,Bill Hahn of HRC,they can all tell you about how an engine works.


I was not putting you down,I was only trying to add some info to the mix.Just trying to help.

Had a friend that built a 2 bolt main 468 BBC putting out 850 RWHP and blew out the bottom end on the first pass.