JoeyD, just get used to assuming HP = WHP. BHP means nothing.
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03-16-2009, 11:54 PM | #122 (permalink) |
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TURBO FTW!!! Superchargers are great choices too. But Turbo although much more pricey, gives you the ultimate satisfaction for top end and a way to get the power and i believe a wider variety of performance.
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04-01-2009, 06:09 PM | #126 (permalink) | |
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05-19-2009, 09:25 PM | #127 (permalink) | |
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Wow, haven't been on in a while. Anyway;
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Last edited by KingDavid; 05-19-2009 at 09:28 PM. |
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06-17-2009, 09:27 PM | #129 (permalink) |
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Hell if I know! LOL... I'm not good with tuning. I know what certain things will gain most of the time, but when it comes to tuning, especially with a motor this complex, I have no idea.
I'd assume that it's going to take some time for them to come up with real tunes for this motor because there's far more to deal with than just a standard cam/valve motor. There's probably going to be experiments going on with them for a good 2-3 years before something GOOD comes out of it. Like the LSx motors... They've been around since 97 and they're a very simple motor to tune, but they've only started coming out with good cams and tunes recently. Up until then, it was hit-n-miss. Expect that to be the same for this motor.
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06-18-2009, 12:02 AM | #130 (permalink) | |
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Using this logic, the VQ engine should already be tuned to it's prime as it came out all the way back in 1994. If you want to argue that the VQ37 is a new engine, it came out in 2008 just like the LS3 did. And the LSx motors did have good cam and tuning. Back in 2001 the 5.7 liter stock Z06 was making 405 hp and by 2003 with aftermarket cam and blower, people had these motors making 700 whp. Sure, the VVEL is more complex, but smart people can reverse engineer graphics chips with 20 million discreet circuits in a 2 year time frame. Remapping the rate of rotation vs rpm of the VVEL and making fuel maps is a piece of cake in comparison. Don't take this personally as an attack on you. I am only ranting because I'm bitter that you can ALREADY buy a Camaro from the dealer that makes 560whp (660 at the engine? 2 months after the car hit the showroom floor?) and we can't even get a Nismo Z yet that makes 15hp more than the base model. I think there is just more R&D in the aftermarket for American cars, which is somewhat baffling because European and Japanese manufacturers sell lots of cars all over the world, where American manufacturers only have good sales in North America. |
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06-18-2009, 12:51 AM | #131 (permalink) |
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Phimosis - I think you just came up with the reason why I prefer American aftermarket pieces versus foreign lol.
Dont forget the ridiculous price premium for imported stuff too. BTW, one of GM's biggest sellers is Buick in China - they sell a **** ton of them, there.
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06-18-2009, 02:33 AM | #132 (permalink) |
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I'm not saying it's impossible to tune a VVEL system. The LS3 is technically a new motor as there were some basic changes between the LS2 and the LS3 (besides displacement), but the VVEL system changes the VQ37 from the VQ35 enough to make it so the old tuning methods are different. Every time GM comes out with a new LSx motor (the LS9 and LSA excluded because they're force inducted) it's been exactly the same process for tuning. Reverse engineering isn't totally necessary for the VVEL system to be tuned. It just needs to be mapped (like you said) correctly based on the requested amount of power (which is how it's setup as is). The VVEL system basically changes how much lift the valves get, correct? So we're really look at cam-grinders getting their hands on this for tuning.
The only real new technology the LS motors have gotten lately is variable timing, but that's easily turned off to turn your LS motor into a performance LS motor.
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06-18-2009, 07:12 AM | #133 (permalink) |
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BTW, for what its worth - my friend who works with the MegaSquirt crew said one of the newer MS setups could handle the tuning just fine for the 370. So, in reality, there IS a tuning solution out there - someone just has to use it.
Crash - the VVEL system changes the lift on the intake valves alone, so, in reality, you can tune the VVEL system as if you were tuning a normal drive-by-wire throttle body. As someone said in an old post, the TB's on the 370 are open 100% during all normal operating conditions, and the VVEL system acts as the throttle body. So why are we over-analyzing this? Just think of the VVEL system as the throttle body itself, and we all know the tuning is directly tied to how far the TB is opened, along with the current amount of air flowing (assuming you're doing a MAF tune and not speed density...). Cliffs: theres no reason anyone cant use a MegaSquirt tuning solution RIGHT NOW to tune their 370.
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06-18-2009, 09:59 AM | #134 (permalink) | |
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06-18-2009, 11:03 AM | #135 (permalink) | |
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None the less, you are correct
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