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Old 07-27-2010, 01:10 PM   #290
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Originally Posted by Z Madness View Post
What, no love?
Oh hell no man tons of love. Haha, I will be ordering mine within the next week or so. Thanks again for all the info, I called them up and they mentioned your setup and how you haven't had any issues etc. I did however get some info on the warranty.


It's dealer specific as to whether or not they want to allow the coverage after the turbo/addons are installed. Most usually don't have a problem because this is the same system/company that adds turbos daily to the new corvettes and almost all chevy dealers honor the warranty because it's a high demand item for the vette. Basically it shouldn't be an issue. Also he did say if for some reason they won't honor the warranty they know dealers that will.

Also for those interested if you do not have the tools/confidence to install it yourself they have a list of places who are pretty well known for installation of turbos.
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Old 07-27-2010, 01:22 PM   #291
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Oh hell no man tons of love. Haha, I will be ordering mine within the next week or so. Thanks again for all the info, I called them up and they mentioned your setup and how you haven't had any issues etc. I did however get some info on the warranty.


It's dealer specific as to whether or not they want to allow the coverage after the turbo/addons are installed. Most usually don't have a problem because this is the same system/company that adds turbos daily to the new corvettes and almost all chevy dealers honor the warranty because it's a high demand item for the vette. Basically it shouldn't be an issue. Also he did say if for some reason they won't honor the warranty they know dealers that will.
I would be very leery of a anything someone tells you about your warranty over the phone....

Couple of things...

Big ticket items like motors, have to be approved by GM. At that point it's out of the dealerships hands. Pop your motor and the GM rep is going to have to come out and check it out... A dealership may not give you a hassle on little things and legally can't hassle on unrelated things, like your power windows stop working... but a big ticket item in your power train, like a motor or tranny... yeah, GM is probably not going to cover you... It's not the dealerships call...

Also, look at how GM is cracking down on power train warranty... they find a aftermarket tune on your ECU or any evidence of you having had one on there they void your entire power train warranty... You take your car in with the turbo on and ask them to fix your motor... well, i don't see it happening...

Now you could always return your car to stock and take it in.... but in my opinion, you want to play, you have to pay...
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Old 07-27-2010, 01:22 PM   #292
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I also believe the manual boost controller will allow you to not only adjust the boost level (which is starting to seem like its unsafe to up it much more than 6psi), but it will also keep boost levels more consistent throughout the RPM band which should make the dyno graph less peaky...While final hp output may not change, the delivery of that max HP should broaden across the band - this is as long as the ECU doesnt think there is too much of air or fuel and try to pull it back - but thats what the T-Tune is for, no?

I also agree about with high compression ratio its unwise to run high boost (but I still dont think 8 lbs is high by any means in the general turbo sense, but then again I dont know of any boosted cars with 11.3 : 1 either)

Working in the steel industry, the higher grade steel being used in these pistons does make them more durable (under their designed operating parameters), however they prob have a tensile close to their yield which means they are more brittle; so when they are outside of their operating parameters, they may be susceptible to cracking. BUT, we dont know how much of a safety factor was designed into them either, so they may be designed just like the STS kit - conservative and safe - which means there may be some leeway yet - but I still wouldnt try anything over 7-8 lbs when everything else is stock...

Boost gauge and boost controller are going to be two good ways to help along this path..
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Old 07-27-2010, 01:57 PM   #293
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Not sure if you can compare the two, but my buddy in his acura rsx-s with a compression ratio of 11:1 runs his turbo at around 13-15psi.
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Old 07-27-2010, 02:21 PM   #294
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I would be very leery of a anything someone tells you about your warranty over the phone....

Couple of things...

Big ticket items like motors, have to be approved by GM. At that point it's out of the dealerships hands. Pop your motor and the GM rep is going to have to come out and check it out... A dealership may not give you a hassle on little things and legally can't hassle on unrelated things, like your power windows stop working... but a big ticket item in your power train, like a motor or tranny... yeah, GM is probably not going to cover you... It's not the dealerships call...

Also, look at how GM is cracking down on power train warranty... they find a aftermarket tune on your ECU or any evidence of you having had one on there they void your entire power train warranty... You take your car in with the turbo on and ask them to fix your motor... well, i don't see it happening...

Now you could always return your car to stock and take it in.... but in my opinion, you want to play, you have to pay...

Absolutely, Im going to poke around see what additional info I can get. When I get more info I'll post it.
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Old 07-27-2010, 03:36 PM   #295
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Not sure if you can compare the two, but my buddy in his acura rsx-s with a compression ratio of 11:1 runs his turbo at around 13-15psi.
and he has stock internals? and stock fuel management and stock injectors?
If he's not and he's running that much boost, he wont be doing it for very long.

His car also has aluminium forged pistons that were designed to handle high static compression which translates into being able to deal with boost better (to a degree)

And conversely, we dont know how much boost this LLT can handle because no one has really pushed the limits up to this point (or at least there arent any in this discussion). The motor may somehow surprise everyone and hold 13 psi as well, I seriously doubt it, but you never know.

We just dont want Z blowing his motor, so everyone is trying to be conservative given the facts about this motor on paper.
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Old 07-27-2010, 03:40 PM   #296
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Not sure if you can compare the two, but my buddy in his acura rsx-s with a compression ratio of 11:1 runs his turbo at around 13-15psi.
Im sure this guy doesnt have direct injection, and has probably upgraded his injectors, fuel rail, pump and pressure regulator. its a completely different with our V6's. We wont be able to boost to those levels unless we start to see some aftermarket fuel management.
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Old 07-27-2010, 03:51 PM   #297
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Originally Posted by SDCamaro10 View Post
Im sure this guy doesnt have direct injection, and has probably upgraded his injectors, fuel rail, pump and pressure regulator. its a completely different with our V6's. We wont be able to boost to those levels unless we start to see some aftermarket fuel management.
Not sure if it matters or what not since I know nothing about boost but it appears that the fuel pressure is about 90 on the LLT.
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Old 07-27-2010, 04:06 PM   #298
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Not sure if it matters or what not since I know nothing about boost but it appears that the fuel pressure is about 90 on the LLT.
thats fine for lower boost levels, like 5-8 lbs of boost, but with more boost, you need for fuel.. the more boost you try to run without upgrading will cause you to start running way to lean and thats not a good thing.

I've talked to several manufacturers already, most recently i talked to the guys at Vortec at one of our local meets. they all agreed that the main set back in developing any FI kits for us, is the fact that its direct injected and theres no current aftermarket support for our fuel system.

Im sure that if we can get some companies to start developing some decent fuel system components, we can get these kits boosting at some real nice levels and put down some serious power. I for one would like to see the V6 raise the front end off the ground.
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Old 07-27-2010, 06:16 PM   #299
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thats fine for lower boost levels, like 5-8 lbs of boost, but with more boost, you need for fuel.. the more boost you try to run without upgrading will cause you to start running way to lean and thats not a good thing.

I've talked to several manufacturers already, most recently i talked to the guys at Vortec at one of our local meets. they all agreed that the main set back in developing any FI kits for us, is the fact that its direct injected and theres no current aftermarket support for our fuel system.

Im sure that if we can get some companies to start developing some decent fuel system components, we can get these kits boosting at some real nice levels and put down some serious power. I for one would like to see the V6 raise the front end off the ground.
I don't think its just the fuel management. I plan to boost at 8 psi with the meth kit and expect to be slightly over 400 rwhp. I would think boosting beyond that, or adding horsepower beyond that, would require internal work and upgraded drive train. I just don't buy the Vortec argument of we won't build it until we can get fuel management to support the higher boost levels.

What level of rwhp will you be happy with? I was amazed at the other thread where there is heavy debate about getting a V-6 to 300 rwhp.

Now as far as getting the front off the ground, maybe if I can sit my fat _ss in the trunk I might be able to get it done.....
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Old 07-27-2010, 06:37 PM   #300
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thats fine for lower boost levels, like 5-8 lbs of boost, but with more boost, you need for fuel.. the more boost you try to run without upgrading will cause you to start running way to lean and thats not a good thing.
Isnt 90 substantially higher than most fuel systems? What is the norm?
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Old 07-27-2010, 08:27 PM   #301
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FI V6s have always been cool to me.

Keep it up!
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Old 07-27-2010, 09:57 PM   #302
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LLT's idle at 500psi of fuel pressure, I logged that. I heard numbers in the range of 2500psi at WOT from other members. I haven't logged WOT.

'Normal' fuel pressure these days is from 43psi to 55psi depending on application, and that's consistent idle through WOT. We're in a totally different ballgame here.

I'd worry about the upper ring lands first, because as mentioned, they're thin. On top of that you have the real problem, the rind end-gaps close up as the heat expands them, and once you reach the point of serious heat (boost and detonation), the rings but up against themselves (0 ring gap) and push out on the cylinder walls. This puts a severe stress on them, then SNAP. Time for a rebuild.

As for the strength of the pistons themselves, I wouldn't put much of a HP limit on them as long as detonation and overheating is kept away. Rods go first typically from too much power, but I think these rods will handle quite a bit. That's just a guess on my part, though, but they do seem to be pretty stout. I wouldn't worry about the crank at all.

Water/Meth injection along with the FMIC should quell the temps and detonation quite nicely when dialed in. I think the next limitation is injector size. No one seems to know yet how much they'll give.

As a throwout guess, I would believe 425whp to be a reasonable estimate with meth and 8 or 9 psi.

What we really need to find out is... What is the compression on the non-DI 3.6's, and are the heads the same other than the injector ports? I'd think those pistons would swap right in, and compression any lower is a help for boost on these.
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Old 07-27-2010, 10:25 PM   #303
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What level of rwhp will you be happy with? I was amazed at the other thread where there is heavy debate about getting a V-6 to 300 rwhp.
That thread is about trying to get that power without forced induction. Somebody did a estimate on possible cost.... and it might come close to what you would pay for a turbo system.
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Old 07-28-2010, 11:15 AM   #304
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Originally Posted by ALLTRBO View Post
LLT's idle at 500psi of fuel pressure, I logged that. I heard numbers in the range of 2500psi at WOT from other members. I haven't logged WOT.

'Normal' fuel pressure these days is from 43psi to 55psi depending on application, and that's consistent idle through WOT. We're in a totally different ballgame here.

I'd worry about the upper ring lands first, because as mentioned, they're thin. On top of that you have the real problem, the rind end-gaps close up as the heat expands them, and once you reach the point of serious heat (boost and detonation), the rings but up against themselves (0 ring gap) and push out on the cylinder walls. This puts a severe stress on them, then SNAP. Time for a rebuild.

As for the strength of the pistons themselves, I wouldn't put much of a HP limit on them as long as detonation and overheating is kept away. Rods go first typically from too much power, but I think these rods will handle quite a bit. That's just a guess on my part, though, but they do seem to be pretty stout. I wouldn't worry about the crank at all.

Water/Meth injection along with the FMIC should quell the temps and detonation quite nicely when dialed in. I think the next limitation is injector size. No one seems to know yet how much they'll give.

As a throwout guess, I would believe 425whp to be a reasonable estimate with meth and 8 or 9 psi.

What we really need to find out is... What is the compression on the non-DI 3.6's, and are the heads the same other than the injector ports? I'd think those pistons would swap right in, and compression any lower is a help for boost on these.
Ya think nitrous would be fine to 425whp or is torque more of an issue?
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Old 07-28-2010, 01:58 PM   #305
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I don't think its just the fuel management. I plan to boost at 8 psi with the meth kit and expect to be slightly over 400 rwhp. I would think boosting beyond that, or adding horsepower beyond that, would require internal work and upgraded drive train. I just don't buy the Vortec argument of we won't build it until we can get fuel management to support the higher boost levels.

What level of rwhp will you be happy with? I was amazed at the other thread where there is heavy debate about getting a V-6 to 300 rwhp.

Now as far as getting the front off the ground, maybe if I can sit my fat _ss in the trunk I might be able to get it done.....
Too much is almost enough. I was just sayin that I think it would be cool to see a V6 pull a wheely down a drag strip
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Old 07-28-2010, 02:13 PM   #306
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Too much is almost enough. I was just sayin that I think it would be cool to see a V6 pull a wheely down a drag strip
Cool. Wheelies are always impressive. Maybe we can get Rod1 to add a 200 shot and see if he can lift the front.:emoticon7: Just kidding Rod1. But I bet he'll be juicing to get into the 11's.
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