V8 MKIV Supra from Saint Lucia.KHAOS!

bambuko · 01-28-2010, 10:09 PM

I'd have to agree with the 2JZ being more than ample for drag racing.

If I was to do an aggressive weight reduction campaign, I think I'd prefer a NA V8 on a road course, though.

pwpanas · 01-29-2010, 01:47 AM

Quote:

Originally Posted by bambuko

I'd have to agree with the 2JZ being more than ample for drag racing.

If I was to do an aggressive weight reduction campaign, I think I'd prefer a NA V8 on a road course, though.

Are you sure a v8 would weigh less than a 3L inline 6 with a 61mm single turbo?

bambuko · 01-29-2010, 01:56 AM

No, it would likely be heavier. No argument there. However, if I was trying to lighten the Supra to offset that weight gain, the added torque is well worth it in my opinion. Of course, you'd have to do serious weight reduction, I'm not talking about swapping the battery, wheels and seats =)

The super GT Supra utilized the V8 in the later years of its racing career. The hybrid one currently does as well. It's all about blasting that torque coming out of corners

Anywhoo, just my two cents.

pwpanas · 01-29-2010, 06:44 AM

Quote:

Originally Posted by bambuko

No, it would likely be heavier. No argument there. However, if I was trying to lighten the Supra to offset that weight gain, the added torque is well worth it in my opinion. Of course, you'd have to do serious weight reduction, I'm not talking about swapping the battery, wheels and seats =)

The super GT Supra utilized the V8 in the later years of its racing career. The hybrid one currently does as well. It's all about blasting that torque coming out of corners

Anywhoo, just my two cents.

Common misconception: turbos build plenty of torque.

Where I can agree with you is that turbos bring that torque on less consistenly/predictably than n/a. That predictability is desireable when you're at the bleeding edge of traction coming out of a corner.

bambuko · 01-30-2010, 12:19 AM

Quote:

Originally Posted by pwpanas

Common misconception: turbos build plenty of torque.

Where I can agree with you is that turbos bring that torque on less consistenly/predictably than n/a. That predictability is desireable when you're at the bleeding edge of traction coming out of a corner.

Yep exactly. Not only do V8s build torque more predictably, but they do build it faster. It's instant, which is what you want. Turbos can certainly out torque V8s (and do so very frequently), but even small ball bearing turbos need an instant to build that torque.

pwpanas · 01-30-2010, 04:46 AM

Quote:

Originally Posted by bambuko

Yep exactly. Not only do V8s build torque more predictably, but they do build it faster. It's instant, which is what you want. Turbos can certainly out torque V8s (and do so very frequently), but even small ball bearing turbos need an instant to build that torque.

Actually v8s don't necessarily build torque faster...at higher rpms, turbos can spool almost instantly. In fact, the only reason turbos aren't roadraced much is because that instant torque-boost can (and does) actually come on instantly (albeit unpredictably) mid rpms...and that unpredictable instant torque-boost does cause traction loss mid-corner.

bambuko · 01-30-2010, 05:25 AM

Regardless, a NA V8 will always have better response and build torque faster than a FI 6. The sudden spike of torque from a turbo is predictable, actually, it's just not as stable as instant torque that increases more linearly. Not saying a FI 6 can't put out crushing torque early in the power band (for example with two small and fast spooling turbos), it just has more of a delay (doesn't matter how relatively small or not that delay is, it is still *there*).

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01-28-2010, 10:09 PM	#1
bambuko Stock Join Date: Jan 2010 Location: New York Posts: 7	I'd have to agree with the 2JZ being more than ample for drag racing. If I was to do an aggressive weight reduction campaign, I think I'd prefer a NA V8 on a road course, though.

01-29-2010, 01:56 AM	#3
bambuko Stock Join Date: Jan 2010 Location: New York Posts: 7	No, it would likely be heavier. No argument there. However, if I was trying to lighten the Supra to offset that weight gain, the added torque is well worth it in my opinion. Of course, you'd have to do serious weight reduction, I'm not talking about swapping the battery, wheels and seats =) The super GT Supra utilized the V8 in the later years of its racing career. The hybrid one currently does as well. It's all about blasting that torque coming out of corners Anywhoo, just my two cents.

01-30-2010, 05:25 AM	#7
bambuko Stock Join Date: Jan 2010 Location: New York Posts: 7	Regardless, a NA V8 will always have better response and build torque faster than a FI 6. The sudden spike of torque from a turbo is predictable, actually, it's just not as stable as instant torque that increases more linearly. Not saying a FI 6 can't put out crushing torque early in the power band (for example with two small and fast spooling turbos), it just has more of a delay (doesn't matter how relatively small or not that delay is, it is still there).