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11-06-2015, 03:06 AM
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#8849 | |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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Quote:
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If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-06-2015, 11:29 AM
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#8850 | |
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Retarded One-Legged Owl
Drives: 2010 Black Camaro 2SS Join Date: Oct 2008
Location: San Antonio, TX
Posts: 9,745
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Quote:
So, you might be able to go balls out for half a mile but then you've got less than a half mile to shut down. Please be careful out there!
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11-06-2015, 01:35 PM
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#8851 |
            
Drives: the 2nd amendment home Join Date: May 2008
Location: OK
Posts: 14,763
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make the guy that packed your chute ride with you...
__________________
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
-- Benjamin Franklin lib·er·ty /ˈlibərdē/ noun 1. the state of being free within society from oppressive restrictions imposed by authority on one's way of life, behavior, or political views |
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11-06-2015, 03:05 PM
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#8852 |
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Track > 1/4 Mile
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Sounds like an interesting event, just remember it isn't a mile! Stay safe out there man.
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11-06-2015, 10:06 PM
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#8853 |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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As it was told to me, there is about 400-500 feet to get up to 60 mph at the same time staying even with the other car... When the light turns green you hit it for 1500-1700 feet then have 2000 ish feet to shut it down... I'll be dumping the laundry... On high boost passes I'm hoping to be over 200 at the finish... The mile has right at 3000 feet to shut down...
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-06-2015, 10:09 PM
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#8854 | |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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Quote:
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-06-2015, 10:11 PM
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#8855 | |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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Quote:
Thanks and I will be careful...
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-06-2015, 10:12 PM
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#8856 | |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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Quote:
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-07-2015, 04:03 AM
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#8857 |
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Drives: it changes Join Date: Nov 2010
Location: Norn Iron
Posts: 1,128
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My car decelerates faster after letting off after say 1/2 or 1km than it accelerates getting there ! lol
And that's without even hitting the brakes. I dont even touch the brakes until around 150mph, decel from wind resistance and engine braking is already fairly substantial So as long as you have sensible tyres/brakes on the car a chute should not be needed except in an serious emergency |
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11-23-2015, 07:24 PM
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#8858 |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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So, a decision has been made to change the throttle body out for a mechanical throttle body. While the new TPIS unit was fine at wide open throttle, there were myriad issues with low speed driveability.
The gas pedal assembly has been pulled and the old/new throttle body as well. We ordered a piece of 5/8 inch thick phenolic that is 12 inches by 12 inches. We will build a spacer to clear the cable cam at the plenum housing. After this is completed and the car is tuned for low speed stuff, we will be on to discover what it'll take to fix the shifting issue. Time will tell on that...
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-23-2015, 07:28 PM
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#8859 |
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Drives: it changes Join Date: Nov 2010
Location: Norn Iron
Posts: 1,128
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Any ideas what the problem was ?
Was the blade not tracking what was requested or something ? Presumably difficulty shifting might be clutch dragging or something ? Kind of hard to look in there at 9000rpm to see what's going on though ! |
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11-23-2015, 09:21 PM
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#8860 |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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As it was told to us the mechanical throttle body is easier to tune for low speed when using ProEFI...
As for the shifting... Yes we have broken ground with this build again. Apparently no one else is spinning one of these to 8000+ rpm... We talked with George at Rockland Standard Gear and they had the same problem with the twin disc clutches on the Mustangs when they started running them to 7500 rpm. They discovered the problem by cutting a window in the bell housing and mounting a high speed camera looking in.. When depressing the clutch the discs were actually cupping away from each other and overpowering the synchros... So in a word yes they were dragging. Now there are four discs to deal with. We have verified the air gaps as required by RPS. We spoke with RPS and Rob said there is the older and the newer version of the quad disc. The older one had a dual hub and the newer version had a single hub. He stated if it's the dual hub he would swap it out. Rob the mechanic in our shop is pretty damn sure ours is the newer version. So we are going to deal with the throttle body first and then make some pulls and see if we can determine a method to shift it or pull it and send the clutch back and see if Rob at RPS can increase the air gap or determine if there is another problem. One thing we can do with ProEFI is program a no lift shift that will substantially reduce the RPMs and still maintain some boost. Time will tell...
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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11-25-2015, 12:15 AM
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#8861 |
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Drives: the 2nd amendment home Join Date: May 2008
Location: OK
Posts: 14,763
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No shifting issues at low RPM?
Modern throttle by cable... interesting... still need TPS for signal tho, right?
__________________
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
-- Benjamin Franklin lib·er·ty /ˈlibərdē/ noun 1. the state of being free within society from oppressive restrictions imposed by authority on one's way of life, behavior, or political views |
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11-25-2015, 02:47 AM
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#8862 | |
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Boosted Moderator
Drives: Bone Stock LS3 Join Date: Sep 2009
Location: Marion Tx
Posts: 15,799
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Quote:
Yes there is a TPS indicator that provides a signal. And, during further searching and digging, we discovered conclusively my clutch is the older dual hub design. If you look inside the center of the attached picture you can clearly see the dual hubs. We spoke with Rob at RPS and he gave us some things to investigate before we tear it down, and some things to check as we tear it down but he wants the clutch back to inspect it and we told him we want the new single hub design back. He was great about it and is going to take care of us. I love working with great vendors that care and are willing to go the distance...
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley
Horsepower is how fast you hit the wall. Torque is how far you take the wall with you. “If everything seems under control, you're just not going fast enough.” Mario Andretti If you can turn, you ain't going fast enough... |
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