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Archive for July, 2010

FIA GT 2010: Sumo Power GT On Podium at Paul Ricard for Round 4!

July 4, 2010 Comments off

Another awesome weekend in GT racing as the Nissan GT-R team Sumo Power GT improve on their previous best results for a 2nd place finish for round for of the FIA GT World Championship’s 2010 season!

Sumo Power kicked off the round with a strong qualifying race on Saturday. Scoring a fifth place on the grid for qualifying, the #22 GT-R put in an amazing performance with each driver (Jamie Campbell-Walter and Warren Hughes) setting the pace with the best laptimes. They went on to finish the qualifying race in third spot behind a Maserati MC12 and Lamborghini R-SV.

The #23 GT-R of Krumm and Dumbreck also started off with a solid grid spot (3rd place) for qualifying but elected to save their best rubber for the main race. The choice of old tires did little for their hopes of an amazing qualifying race and they ended up finishing qualifying in 9th.

The Swiss Racing Team GT-Rs were further back with a 12th and 21st place qualifying position. The #3 car in 21st due to a puncture during a hot lap while qualifying.

During Sunday’s final, the decision to save the new rubber for the #23 GT-R paid off in spades as they used the grip advantage to score an amazing 2nd place on the podium.

The #22 GT-R also raced extremely well reaching 2nd place at one point in the race. Unfortunately they were judged to go over the white line at one point of the track and suffer a drive through penalty placing them back to 18th in the pack. They fought well though and claimed a final 8th place points scoring finish as well as some epic racing moments.

Swiss Racing Team’s #3 GT-R managed to improve on their qualifying place even on their old rubber and finished overall in 15th spot. This race truly shows the importance of tire strategy especially in the hot conditions.

The SRT #4 GT-R suffered a gearbox issue which forced them to retire when 4th gear went on holidays.

For more info and to read the whole race report, click through the read more link below…

Link: Race Report
Photos: (C) NISMO and (C) DPPI for FIA GT

Read more…

COBB Tuning Release Boost Control by Gear and Throttle Position

July 1, 2010 Comments off

It was a breakthrough achievement when COBB Tuning rolled out their updated AccessPORT product with proportional boost gain control (RPM based boost control). The GT-R tuning industry were finally able to navigate the hump of boost spikes that had been holding back the basic bolt on tuning scene to that point.

Now we’ve heard that Cobb have taken boost control on their AccessPORT product to the next level with the ability to limit boost by gear and throttle position. They say this will give the tuner ultimate control over boost to prevent undesirable spikes or bursts of acceleration mid-corner when the throttle is only partly applied.

Gear and Throttle Wastegate Multiplier:

The gear and throttle wastegate multiplier is a gear and throttle position-dependent boost control strategy that behaves like traction control. However, instead of using the brakes and other conventional drivetrain-based methods to limit wheel spin, the ECU alters wastegate duty cycle to limit turbo spool. This in turn limits toque and power output effectively limiting low-end torque and wheel spin.

To go with this new development, the included canned maps are updated and if you’re using an included map you should flash your car’s ECU with one of these updates. On the other hand if you’re running a custom tune, you’ll need to consult your tuner for a new map that takes advantage of this updated capability.

For more information, check out the Cobb Tuning press release in the link below…

Link: Cobb Tuning Press Release