"See in simple terms just try to think logically here ok?
VG30- BORE/STROKE 3.43 X 3.27(Tip-1995 Bore a bit bigger)
2JG- BORE/STROKE 3.39 X 3.39
Alot of people dont know that our bore is larger!
and as you know that equals TORQUE"Wrong. Since when does a larger bore on an engine of equal displacement give it more torque? Traditionally, engine builders give it more STROKE for more torque. And besides, he just got done saying that since we have more bore we obviously have more torque (which is wrong to begin with), then he goes to give the output numbers:
"Z- 300@6400rpm 283@3600rpm
Supra 320@5600 315@4000." Doesn't look like the Z's engine design gave it more torque, does it? "Having the dual plenum is part of the dual inline 3 design.
(if you notice the Z is full of symetry from the engine down to the interior.) This benefits the engine greatly on the top-end rpm's as well as being very effecient." Everything that I've heard states that the Supra has the better flowing heads. Not the Z. Designed like dual inline 3's or not, the Z's manifolds are restrictive. "Which powerband do you logically think is more of a top-end design? one that has its rated peak at 5600rpm or 6400rpm" He seems to fall into the fallacy of believing that having to rev higher to achieve your desired HP numbers is a good thing. This isn't the case. The Supra puts out MORE HP, and does it at a lower RPM. Any way you look at it, it's producing better results, and it doesn't have to work as hard to do it. And since we've all seen that Supras can easily be made to rev high, we know that the engine is not running out of breath at 5600 rpm. Hint: It's underrated "I know you read that the Supra is ALOT stronger by all magazines that are for the general public(Road and Track/MotorTrend/Car and Driver). They want you to believe that the Supra runs 0-60 4.6 and 1/4 mile 13.5@106.5mph.
And that the Z ONLY runs 0-60 5.5 1/4 mile 13.9@102mph? Now how do you figure a vehicle that has a Powerband that starts at 4000rpm with alot of lag and is geared with a 3.27 rear-end out accelerate a powerband that starts at 3600rpm with a quicker spool up and is geared with a deeper 3.69 rear end." What about the different transmissions they use? The Supra has a 6 speed transmission and simply does not need as fat of a power curve since it has more gears. The ratios are shorter and therefore can be cammed to give a narrower, peakier powerband. And what about the ratios coming out of the transmission before it gets to the differential? Since they have different transmissions, the rear end ratio does not have to be the same as the Z's. And I'll pose another possibility- The engine is putting out more HP, and more torque than the Z, and it's putting out more HP and more torque than Toyota claims it is. Sort of like how the late model Camaro SS's can dip into the 12's with only "330 hp" (more like 310-320 at the rear wheels) "Because the VG30 does not rely on so much boost due to the more effecient design(better inhailing and exhailing)and stronger motor. When modified you will notice that the Supra needs around 18psi of boost to achieve the same hp the Z does at 15-16psi" They have different types of turbos with different flow characteristics and they're running in a different configuration. They also have different intercoolers. How much can you really expect to derive about the engine based on the boost levels? "If you still dont believe me just take it from the Former Chief Editor for Motor Trend "In 1993 Toyota had been sending cheater samples to the media to get better performance numbers"." What proof does this guy give? He's quoting the conjecture an editor of a magazine made 10 years ago. Hasn't anyone been able to dig up one shred of proof since then? I'll sum up what I think about this article: The author is trying to directly compare two different engine designs, running different turbos being utilized in different setups, using different types of transmissions, all working together in totally different cars. You can't do that. He's getting lost in the details, spewing out numbers and they don't necessarily correlate.
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