GrantG

The torque of the GT2 is not that big an advantage when the GT3 has a 9k redline and 7 closely spaced performance gears. Particularly on a long straight - more about power.

Torque has its biggest benefits when you are in the wrong gear (too tall) or the gearbox has widely spaced ratios, or from a standing start. If you keep the GT3 on boil, there is no meaningful deficit from the lower torque.

sharkster

Hehe never! Good stuff tho...

sharkster

Only 'cos I'm a Brit But absolutely hats off to RS/Manthey etc... as we can only do our best in that respect. We do not build race cars- just street and DE cars. We still do have hundreds off pulls, track miles, city driving and other torture tests we run etc... Plus multiple tear downs and stuff on ours since it's been in development 18 months ago (when she first fired up). It's a great way to figure out weaknesses that might occur down the road when pushing like this. We did the same thing with the 3.9 and so rather than release something just becuase and early we always seem to do so much later than being relevant but hey we prefer it that way.... Had a few GT2s here lately and yes they'd be a nice happy meal for our car. A GT2RS and then some tuning, cats and

sharkster

Hehe glad you liked it It's been fun, long and interesting road but I think I see a tunnel somewhere

It can be... just whether or not it's right for the chassis is another thing

wanna911

Torque is always a big deal. The GT3 power band is narrow while a GT2 can torque it's way out of low speed turns without having to go down a gear. I use a higher gear out of low speed turns all the time for that reason. I also never use 2nd gear because it's to hard to get a clean shift from 2nd to 3rd without losing time. 7 gears is beneficial if you have a sequential. All that shifting costs time and leaves more opportunity for mistake if you have a manual. Add all of those shifts to a narrow power band only makes the shifting issue exponentially worse.

GrantG

Yes, torque is a big deal if you are not diligent about being in the proper gear.

I've been spending a bunch of time in the 991 GT3 forum and forgot where I was when I mentioned 9k redline and 7spd close-ratio. With the PDK (I personally prefer manual), the time wasted shifting that you mentioned is a non-issue. A well driven 991 GT3 will never miss the torque of a turbo motor in the way that the driver of an older GT3 might (easy and fast to always be in the fat part of the power curve).

wanna911

Agree, with PDK, but the motor in question wouldn't be going in a 991 GT3. The best direct comparison would be to the 997 GT2 with 530 hp which would also make about 125 more lb/ft than the Manthey

When it comes to manuals, you cannot always be in the proper gear. Sometimes a higher gear is faster, sometimes a lower gear is faster. When choosing a higher gear, torque is always useful. It makes gear selection much easier.

The grip level of the tires is important, torque is useless if it overpowers the grip. I think it would depend on what tires were on the car.

Petevb

Surprisingly the 4.1 has a stock 997 GT2 covered for torque to the wheels, and it's got a wider power band. Top speed in gears 2-4 is similar, and the shorter gearing allows the 4.1 to be equal to or ahead of the GT2 on thrust to the ground everywhere. It really is turbo grunt with normally aspirated response. Devastating combo. I can only imagine the 4.4 will be even more so.

cfjan

A new crank would be needed to get to 4.1 for the 3.6L engines, right?

TurboS

Had a few GT2s here lately and yes they'd be a nice happy meal for our car. A GT2RS and then some tuning, cats and [/QUOTE]

Perhaps if you tested a GT2 from Florida with a Werks1 badge, Happy becomes UnHappy very quickly.

sharkster

Something like this

m5trol

Show off

sharkster

Ahh what's a billet crank between friends

cfjan

Does it have similar stroke compared to the factory 4.0 RSR crank?!

sharkster

Cat will be outta the bag in due time That crank is different and heavier:P