Japan Tuning News [Archive]

Skym

01-14-2010, 10:18 AM

On GTRPWR forum you get "Japan Tuning News". :D

"Garage Saurus smash 800awhp mark with their R35 GTR" (Includes dynochart) -

http://japan-tuning-news.blogspot.com/2009/09/garage-saurus-smash-800hp-mark-with.html

"Fastest Tuners at Tsukuba circuit" -

http://japan-tuning-news.blogspot.com/2009/09/fastest-tuners-at-tsukuba-circuit.html

"Escort Racing run 7.670 in their Type M Skyline" -

http://japan-tuning-news.blogspot.com/2009/09/escort-racing-run-7670-in-their-type-m.html

And many more.

rb-racer

01-14-2010, 12:20 PM

not that bad of a power band.

Skym

01-14-2010, 12:21 PM

Compare it to a RB26 or RB30 with similar hp at the wheels (hub dyno, not a roller dyno like above R35GTR) -

http://img686.imageshack.us/img686/8455/dickgtrpowe5r.jpg

100 US hp on R35GTR at 2000rpm vs 42.5 UK hp at 2250rpm from RB26. Nearly 2x the hp with 250rpm less revs.

Terrh

01-22-2010, 07:18 PM

that's from torque.

torque comes from small turbos and large displacement.

There's no replacement for displacement.

j-ran

01-26-2010, 10:18 AM

If I go to a smaller turbo will I make more torque?

mcfly

01-26-2010, 10:31 AM

Do you have an rb20?

rb-racer

01-26-2010, 10:43 AM

that's from torque.

torque comes from small turbos and large displacement.

There's no replacement for displacement.

A lot of boost = more torque

j-ran

01-26-2010, 11:35 AM

Do you have an rb20?

Is that an actual question? Because i think you know the answer to that, and if you forgot, yes I have an rb20 with a 25 turbo

mcfly

01-26-2010, 11:43 AM

It was somewhat of a rhetorical question. Torque out of an rb20 is like a man having a baby. Very unlikely.

I cannot comment on how turbo size relates to torque though.
I do know that like stated above by rb-racer, more torque is achieved with more boost. If you had a smaller turbo you could have more boost at torque peak and multiply it with solid boost numbers.

GRIP

01-26-2010, 01:59 PM

Torque is determined by a few factors

- The size of the piston face

- The amount of pressure that the ignited fuel applies to the face of the piston

- The distance the piston travels on each stroke

- The diameter of the crankshaft, the bigger the diameter of the crankshaft, the bigger
the lever arm and therefore the more torque.

You can convert torque to horsepower with the following equation:
HP = Torque * RPM / 5,252