One Lap of America (Porsche contender)
#16
05-06-2009, 06:52 PM
Join Date: Jul 2006
Location: ga
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Hey Guys, Ian Stewart here. Read the posts last year but never posted.
Bit of an Update. We cranked a 2:18.7 at Sebring. Which is about what our TBL in testing showed the car could do. We had some teething issues in testing and have pulled the car back a bit. No idea what she'd dyno now but we're thinking in the 480-490whp range. Just plain ran out of time to work on getting more hp. The OS Giken Diff we put in was hands down one of the best upgrades as the car does a fantastic job of putting the power down. Hence the wins in the wet. We hit a peice of road debris last night and no longer have a front splitter. This made Daytona an absolute mess. On the Data my afternoon run could have cracked a sub 2:00 lap but it was just flat driver error in places. The GTR got on the wheel in the afternoon and even using my TBL's he still got me. The car danced around A LOT on the banking with no front downforce. We ran the morning with lots of rear wing and it was all over the place at 170mph on the banking. We took some wing out in the afternoon and it balanced the car much better. It's still scary doing 177 mph (data) into the trioval on street tires with NO cage. Blowing a tire ment being airlifted.
CMP is the GT-R's home track. I hold track records there in 2 classes with the SCCA but I think I'll give them the Nod at CMP. Beaverrun is very bumpy for us. I think were going to be in a hole coming into the dry skid pad and hopefully 3400lbs can claw back some spots on 3900lbs going in a circle. Thanks for cheering me on.
CMP might be wet tomorrow morning so this could get even more interesting. They are on the better wet tire (hence wet skid pad numbers). Their testing says the conti is slightly quicker in the wet and every so slightly slower in the dry.
Bit of an Update. We cranked a 2:18.7 at Sebring. Which is about what our TBL in testing showed the car could do. We had some teething issues in testing and have pulled the car back a bit. No idea what she'd dyno now but we're thinking in the 480-490whp range. Just plain ran out of time to work on getting more hp. The OS Giken Diff we put in was hands down one of the best upgrades as the car does a fantastic job of putting the power down. Hence the wins in the wet. We hit a peice of road debris last night and no longer have a front splitter. This made Daytona an absolute mess. On the Data my afternoon run could have cracked a sub 2:00 lap but it was just flat driver error in places. The GTR got on the wheel in the afternoon and even using my TBL's he still got me. The car danced around A LOT on the banking with no front downforce. We ran the morning with lots of rear wing and it was all over the place at 170mph on the banking. We took some wing out in the afternoon and it balanced the car much better. It's still scary doing 177 mph (data) into the trioval on street tires with NO cage. Blowing a tire ment being airlifted.
CMP is the GT-R's home track. I hold track records there in 2 classes with the SCCA but I think I'll give them the Nod at CMP. Beaverrun is very bumpy for us. I think were going to be in a hole coming into the dry skid pad and hopefully 3400lbs can claw back some spots on 3900lbs going in a circle. Thanks for cheering me on.
CMP might be wet tomorrow morning so this could get even more interesting. They are on the better wet tire (hence wet skid pad numbers). Their testing says the conti is slightly quicker in the wet and every so slightly slower in the dry.
The pair has the right set of tools; both compete in SCCA Solo and Club events at the national level, and, even in stock form, the GT2 is no slouch. But Lier and Stewart want better. They've added a GMG exhaust and a Super Lock LSD from OS Giken, along with Moton Motorsports shocks, RS uprights, solid bushings, monoballs, and a rear sway bar. GIAC tuned the engine management system, while a Porsche GT3 loaned a set of seats. The Porsche rides on CCW wheels shod with Michelin PS2 tires and brakes augmented with Cobalt brake pads."
#18
05-06-2009, 07:36 PM
Good luck Ian! Pretty cool picture on the Daytona Bank attached,
You going to get a new splitter?
This is one of your DE students at Sebring from last year (Mehmet). Guys, I had the privilege of riding shotgun with Ian in the GT3 last year at Sebring, I attest he kicks a$$!
You going to get a new splitter?
This is one of your DE students at Sebring from last year (Mehmet). Guys, I had the privilege of riding shotgun with Ian in the GT3 last year at Sebring, I attest he kicks a$$!
Hey Guys, Ian Stewart here. Read the posts last year but never posted.
Bit of an Update. We cranked a 2:18.7 at Sebring. Which is about what our TBL in testing showed the car could do. We had some teething issues in testing and have pulled the car back a bit. No idea what she'd dyno now but we're thinking in the 480-490whp range. Just plain ran out of time to work on getting more hp. The OS Giken Diff we put in was hands down one of the best upgrades as the car does a fantastic job of putting the power down. Hence the wins in the wet. We hit a peice of road debris last night and no longer have a front splitter. This made Daytona an absolute mess. On the Data my afternoon run could have cracked a sub 2:00 lap but it was just flat driver error in places. The GTR got on the wheel in the afternoon and even using my TBL's he still got me. The car danced around A LOT on the banking with no front downforce. We ran the morning with lots of rear wing and it was all over the place at 170mph on the banking. We took some wing out in the afternoon and it balanced the car much better. It's still scary doing 177 mph (data) into the trioval on street tires with NO cage. Blowing a tire ment being airlifted.
CMP is the GT-R's home track. I hold track records there in 2 classes with the SCCA but I think I'll give them the Nod at CMP. Beaverrun is very bumpy for us. I think were going to be in a hole coming into the dry skid pad and hopefully 3400lbs can claw back some spots on 3900lbs going in a circle. Thanks for cheering me on.
CMP might be wet tomorrow morning so this could get even more interesting. They are on the better wet tire (hence wet skid pad numbers). Their testing says the conti is slightly quicker in the wet and every so slightly slower in the dry.
Bit of an Update. We cranked a 2:18.7 at Sebring. Which is about what our TBL in testing showed the car could do. We had some teething issues in testing and have pulled the car back a bit. No idea what she'd dyno now but we're thinking in the 480-490whp range. Just plain ran out of time to work on getting more hp. The OS Giken Diff we put in was hands down one of the best upgrades as the car does a fantastic job of putting the power down. Hence the wins in the wet. We hit a peice of road debris last night and no longer have a front splitter. This made Daytona an absolute mess. On the Data my afternoon run could have cracked a sub 2:00 lap but it was just flat driver error in places. The GTR got on the wheel in the afternoon and even using my TBL's he still got me. The car danced around A LOT on the banking with no front downforce. We ran the morning with lots of rear wing and it was all over the place at 170mph on the banking. We took some wing out in the afternoon and it balanced the car much better. It's still scary doing 177 mph (data) into the trioval on street tires with NO cage. Blowing a tire ment being airlifted.
CMP is the GT-R's home track. I hold track records there in 2 classes with the SCCA but I think I'll give them the Nod at CMP. Beaverrun is very bumpy for us. I think were going to be in a hole coming into the dry skid pad and hopefully 3400lbs can claw back some spots on 3900lbs going in a circle. Thanks for cheering me on.
CMP might be wet tomorrow morning so this could get even more interesting. They are on the better wet tire (hence wet skid pad numbers). Their testing says the conti is slightly quicker in the wet and every so slightly slower in the dry.
Last edited by Danyol; 05-06-2009 at 11:31 PM.
#19
05-06-2009, 07:54 PM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 551 That was a Hennessey ACR, they put it up for sale right after the competition. There was a rumor they'd show up again this year, in a ZR-1, but they were a no show.
Would have been great to see it there if that 800 hp GT-R was healthy, that would have been a mega shootout.
#20
05-06-2009, 08:38 PM
That was a Hennessey ACR, they put it up for sale right after the competition. There was a rumor they'd show up again this year, in a ZR-1, but they were a no show.
Would have been great to see it there if that 800 hp GT-R was healthy, that would have been a mega shootout.
Would have been great to see it there if that 800 hp GT-R was healthy, that would have been a mega shootout.
I do remember it going for sale now. funny
#21
05-07-2009, 07:47 AM
The Mods on the GT-R are a bit unknown. I know they are playing and moving the boost daily (as they've told us). This morning in the wet it was like driving on ice. This track is slick in the dry, in the wet it was as bad or worse then wet sealed asphalt. I'm actually impressed that I only lost by a bit over 2 seconds a lap. I absolutely could not get in the throttle anywhere. Problem is the track dried by about 4th group and some cars slipped in between myself and the GT-R. Looks like a pretty serious points hit.
Heavychevy, I can't respond to PM's.... not enough posts.
The OS Giken Diff did not create any understeer. It's been absolutely amazing. The car showed up with a worn out stock diff. The GT3 we ran last year had a worn out stock diff. The OEM diffs just don't last at all and when we went to get one last year for the GT3 it was Unavailable. The Giken diff provides beautiful progressive lock up on corner exit and you can steer the car perfectly with the throttle.
Heavychevy, I can't respond to PM's.... not enough posts.
The OS Giken Diff did not create any understeer. It's been absolutely amazing. The car showed up with a worn out stock diff. The GT3 we ran last year had a worn out stock diff. The OEM diffs just don't last at all and when we went to get one last year for the GT3 it was Unavailable. The Giken diff provides beautiful progressive lock up on corner exit and you can steer the car perfectly with the throttle.
#22
05-07-2009, 09:43 AM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 551
Yeah, CMP is tough when it's wet especially the newer pavement portions. Thanks for the updates.
Edit: Some relatively good news, you guys did manage a third place this morning so you only lost 10 points. Still a good enough ways to go for you guys, but more wet weather expected. You have your work cut out for you for sure. If it gets too wet you may want to think about disconnecting the rear sways and going full stiff in the front to induce some understeer.
Good luck.
Edit: Some relatively good news, you guys did manage a third place this morning so you only lost 10 points. Still a good enough ways to go for you guys, but more wet weather expected. You have your work cut out for you for sure. If it gets too wet you may want to think about disconnecting the rear sways and going full stiff in the front to induce some understeer.
Good luck.
Last edited by heavychevy; 05-07-2009 at 10:34 AM.
#23
05-08-2009, 02:08 PM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 551
The GT2 hit a couple of cones at the BMW event and though it won by 3 seconds the cones cost them 20 seconds (10 each) putting them way back.
They also took both events at Beaver Run today, meaning the GT2 won 7 of 11 road course events. Not bad considering some of them were in the wet and the GT2 is underpowered and has only factory aero compared to the other front runners with aeromotions and big wings.
Definitely the overachiever of the event. A decent flash and some aero and they may have cruised through this.
They also took both events at Beaver Run today, meaning the GT2 won 7 of 11 road course events. Not bad considering some of them were in the wet and the GT2 is underpowered and has only factory aero compared to the other front runners with aeromotions and big wings.
Definitely the overachiever of the event. A decent flash and some aero and they may have cruised through this.
#25
05-08-2009, 05:57 PM
Join Date: Jul 2006
Location: ga
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No I wasn't there, Peter, the owner of the GT2, has a thread on Rennlist that he's been posting in.
#27
05-09-2009, 11:27 AM
Join Date: Jul 2006
Location: ga
Posts: 8,934
Rep Power: 551 No, but the Porsche ruled the road courses. Nuff said. Just very hard to win this competition with a RWD car. Great job by Ian and Peter though. Well done guys!!!
#29
05-09-2009, 12:39 PM
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The weather here today was AWFUL for the final skidpad challenge. 45 degrees, 40mph gusts, and spitting rain.
Yep, SO glad I live in Indiana.....
Yep, SO glad I live in Indiana.....
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#30
05-09-2009, 01:09 PM
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Lame post.