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Old 05-15-2008, 12:37 PM   #11 (permalink)
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Default Re: maximum hp on engine and transmission

I don't foresee you getting into 9's using stock pistons. The stock rods and crank can handle it - but it's recommended you get rods for better "durrability".
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Old 05-15-2008, 12:41 PM   #12 (permalink)
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Default Re: maximum hp on engine and transmission

Quote:
Originally Posted by oohnoo View Post
Failure points are 1st gen transfer cases of which there are t-case braces available. 2nd gen transfer cases are stronger and made out of cast iron. But strengthening those the weak link is trasnfered to the tranny of which you can make stronger by welding in a plate inside the bellhousing. After that it seems to be the axles but it all depends on alot of factors such as the suspension, tires/drag radials/air pressure andmost important how you launch the car.

Any big hp motor is going to need stronger internals if you want it to last. Slap on some big turbo's and the sky is the limit.

BETTER!
Yes, that's the kind of info I'm looking for.

I don't believe your last point. I said already that a bone stock 6 bolt 4G63T can take 600awhp and that's is no joke. It's been tested before and even my own car took 2 years of 450whp+ and mid 11s @ 122mph. Over 150 passes on a old high mileage stock engine. This year it's making 500awhp. I'm running 30 psi and even added a shot of 75HP of nitrous.

I have no experience with the engine in the stealth TT but I would think it could take at least 600awhp no problem as long as detonation is kept in check and RPMs are reasonable.

So what about the engine. What's the current record for a stock engine, 1/4 mile or HP ? What fails at that level (rods, piston ringland, bearings etc..)
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Old 05-15-2008, 12:44 PM   #13 (permalink)
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Default Re: maximum hp on engine and transmission

Quote:
Originally Posted by atxvr4 View Post
I don't foresee you getting into 9's using stock pistons. The stock rods and crank can handle it - but it's recommended you get rods for better "durrability".
I agree, it's safer to go forged on the pistons, it's just another safety net.
You know most cast pistons can make almost as much power as forged ones. The only problem is that they are brittle due to the high silicone content so any tuning mistake could cost you the ring lands. They don't like detonation at high power levels.
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Old 05-15-2008, 12:48 PM   #14 (permalink)
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Default Re: maximum hp on engine and transmission

Well, forums exist as an information resource. Information is best packaged when well-organized, efficient and streamlined. Having 3.2 gajillion threads all about "How do I get to 9's?" is not efficient.

When this was pointed out to you, your assertion was basically this:
"Well that doesn't apply to me. I want my answers now" When.... everyone replying to you in this thread has done the footwork for themselves, and searched. And searched. And searched.

Anyhow, since this thread now exists, to answer your question:

As you said, the DSMs can handle 600whp "for awhile" if tuned properly. The same is with the 3/S bottom ends. People have driven around for years with 700+whp on the stock bottom end (not stock pistons, mind you) and been fine. For some, the crank will begin to crack.

You've been modding cars for 10 years. Then you know that ANY car, be it a 3000GT/Stealth, an LSX, or what-have-you, will have some major weak links to overcome when shooting for consistent 9's in the mid 140's. The 3000GT's weak links are pretty easy to swallow, considering that its (essentially) stock transmission can handle that sort of stress.

As it's mentioned before, you'll need to weld a plate into the bellhousing (much cheaper than buying a race transmission on another platform). Then you'll need the SS transfer case pieces. On any car making 800-900hp at the crank, you're going to want forged internals. Ray Pampena (search his name) is offering a beautiful 3.5+ Liter stroker for around 7 grand, with billet rods, forged pistons and a strong crankshaft. That would do the trick for you.

After that, it's all supporting mods. Axles seem to start breaking when you're making power like Matt Monett, in the 900+ awhp range. He's running 8's with a piggyback. The potential for this platform is amazing, but it has its weak links like any other.
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Old 05-15-2008, 01:00 PM   #15 (permalink)
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Default Re: maximum hp on engine and transmission

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Well, forums exist as an information resource. Information is best packaged when well-organized, efficient and streamlined. Having 3.2 gajillion threads all about "How do I get to 9's?" is not efficient.

When this was pointed out to you, your assertion was basically this:
"Well that doesn't apply to me. I want my answers now" When.... everyone replying to you in this thread has done the footwork for themselves, and searched. And searched. And searched.
Well, it's a pet peeve of mine, when people on a forum say do a search. That to me is so disrespectful. It's like asking someone the time and he tells you to go buy a watch.

I could spend a week doing the research and not have all the answers I could get if the knowledgeable folks would take 5-10 minutes and answer my question. Sometimes one needs to see the full picture and searching on a forums leads to a lot of misinformation, some good info, and some old info etc...

Quote:
Anyhow, since this thread now exists, to answer your question:

As you said, the DSMs can handle 600whp "for awhile" if tuned properly. The same is with the 3/S bottom ends. People have driven around for years with 700+whp on the stock bottom end (not stock pistons, mind you) and been fine. For some, the crank will begin to crack.

You've been modding cars for 10 years. Then you know that ANY car, be it a 3000GT/Stealth, an LSX, or what-have-you, will have some major weak links to overcome when shooting for consistent 9's in the mid 140's. The 3000GT's weak links are pretty easy to swallow, considering that its (essentially) stock transmission can handle that sort of stress.

As it's mentioned before, you'll need to weld a plate into the bellhousing (much cheaper than buying a race transmission on another platform). Then you'll need the SS transfer case pieces. On any car making 800-900hp at the crank, you're going to want forged internals. Ray Pampena (search his name) is offering a beautiful 3.5+ Liter stroker for around 7 grand, with billet rods, forged pistons and a strong crankshaft. That would do the trick for you.

After that, it's all supporting mods. Axles seem to start breaking when you're making power like Matt Monett, in the 900+ awhp range. He's running 8's with a piggyback. The potential for this platform is amazing, but it has its weak links like any other.
That's good stuff. Thanks for the answer.
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Old 05-15-2008, 01:13 PM   #16 (permalink)
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Default Re: maximum hp on engine and transmission

I don't see the relevance of knowing what is the limit of the stock engine, if you know you want to run 9's... If I want to build a 9s car, I would not consider a stock engine, even if it could make it, it will not last long...

It's pretty the same as a DSM, but the bearings seems to spun more easily. The stock heads are stronger, but for a 9s car a builted head would be needed too.

The driveline is weak point too, but not as the same, TC, OS, axles.

3si are easy to make more HP, like a DSM, but everything takes more time to do...
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Old 05-15-2008, 01:16 PM   #17 (permalink)
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Default Re: maximum hp on engine and transmission

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Originally Posted by lancervnt View Post
Well, it's a pet peeve of mine, when people on a forum say do a search. That to me is so disrespectful. It's like asking someone the time and he tells you to go buy a watch.

I could spend a week doing the research and not have all the answers I could get if the knowledgeable folks would take 5-10 minutes and answer my question. Sometimes one needs to see the full picture and searching on a forums leads to a lot of misinformation, some good info, and some old info etc...
While that may be all well and good, you're not listening to what the members are telling you. YOU are the new person here, walking into the house for the first time. The rules are, please search a bit before asking questions. We feel that it's disrespectful for all these people to ask for information that they should be searching for instead.

When you post a thread asking for information of this nature, of which there are many answers and the sky is the limit, the perception is that you didn't search prior to asking the question. Then when you say that you don't think searching is for you, you are basically telling everyone that you are lazy and you want us to do the legwork for you. If that's true, you probably won't get much help around here. If you did search already and need some clarification, then I would suggest maybe you state that in the opening of your thread, with some examples of what you found that wasn't helpful. That may make people more receptive to what you are asking.

Finally, how long you have been tuning cars makes very little difference here, because many of the people here have been doing it for just as long if not longer. It doesn't really add anything to your "cred" so to speak, to measure your dick, whether it be in real life, or "virtual".

What I'm saying is that you have to remember that we are all 3S enthusiasts here, so we're all on your side and want to help you and want to see cool big power 3S's, so try to remember that and see where we're coming from when you walk into "our" house for the first time. If you're cool, we're cool, and then everybody's cool, and everybody wins, and the platform grows.

We want to help you, but you're not entitled to anything.
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Old 05-15-2008, 01:20 PM   #18 (permalink)
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Default Re: maximum hp on engine and transmission

Quote:
Originally Posted by DSM Performance View Post
I don't see the relevance of knowing what is the limit of the stock engine, if you know you want to run 9's... If I want to build a 9s car, I would not consider a stock engine, even if it could make it, it will not last long...
+1 to that

To be honest, if you really want to hit 9's on the cheap, you're looking at the wrong platform. 3/S owners tend to like having a car that can make a lot of power... but do it with style, comfort and class. There are exceptions (Matt's drag car doesn't even have a left tail light) but that "spirit" tends to be the central theme here.

If you want to take a stock motor, slap on some adders and run 9's on the cheap, consider a fox body 5.0.
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Old 05-15-2008, 01:25 PM   #19 (permalink)
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Default Re: maximum hp on engine and transmission

Whitedragon I don't see what's the big deal? I asked a question that the answer and not easily searchable. Instead of wasting time explaining why I should search just answer the question if you know the answer. I bet you don't have all the answers to my questions yourself.

I walked into your house ?? LMAO. Sorry, that is funny. Do you want me to take my shoes off ?
Here take my coat.

geez.
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Old 05-15-2008, 01:25 PM   #20 (permalink)
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Default Re: maximum hp on engine and transmission

There are what 3 cars now that have run a 9 or faster?

10s are a much more realistic goal.

Also you'll probably have to trap the upper 140s to hit a 9 in a 3/s.
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