Videos of Half mile top speed event on Sunday. Finally!! Sunday
06-29-2011, 11:49 AM
#46
Drive-by provocation guy
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You said still street and ac, etc. I am curious to what set up, fluids, driver, etc. was the 2,900lbs reading?
06-29-2011, 12:01 PM
#47
No muffler; racing seats; racing battery; Light weight wheels; 1/4 tank gas. Standard configuration for the street weight with stock seats, regular battery, muffler and "stock" 18" wheels is about 3,075lbs. No driver.
06-29-2011, 01:38 PM
#49
Drifting
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From what I'm being told if you spin the tires in the low gears you are really just doing that: spinning tires without any forward movement so the car is not really moving forward using up the half mile or whatever distance there is. But once the car is moving at a significant pace whatever tire spinning happens does not really allow the additional torque to be converted to additional forward movent but at the same time the car is already moving at a significant pace consuming huge amount of distance without gaining anything. This is what I'm being told. It does make sense. Put another way if you are spinning tires and not moving you can stay all day doing that without finishing the run but once moving you can't. Obviously taking about distsance event. Timing events are something else.
Only one way to really find out for your specific car/setup - put on your sticky tires for your next event.
Based on my experience I will guesstimate you pickup a consistent 6mph.
This assumes all else is the same. If you can up the boost on the big end that may get you some additional mph.
I also anticipate it will be as fun as the first event and maybe more as you will be more comfortable with the venue/car, etc.
06-29-2011, 02:44 PM
#50
Drifting
Left the muffler home with the stock driver seat. Straight 3" pipe. Clunking must be from the Kokeln torsion bar delete or the solid sway bar links. I'm always with a/c on and the windows closed, except at the track where I have the helmet on, so I don't hear or notice it.
The turbo is a Garrett T04 60-1 BB. Tried a Billet Precision 6265 BB .68 a/f few months ago. Did not gain any hp and lost torque down low. It was like an on/off switch pretty high in the rpm counter. Precision turbos seem to work better in high boost and high rpm applications, which is not my case. Might work with a different a/r but why bother spending the money when I already have a very sweet setup with more than enough hp/tq.
The turbo is a Garrett T04 60-1 BB. Tried a Billet Precision 6265 BB .68 a/f few months ago. Did not gain any hp and lost torque down low. It was like an on/off switch pretty high in the rpm counter. Precision turbos seem to work better in high boost and high rpm applications, which is not my case. Might work with a different a/r but why bother spending the money when I already have a very sweet setup with more than enough hp/tq.
Angel,
I'm using a Billett Precision 6262 BB with a .58 on my 3.1 and we are getting boost at tip in. By 3K we are seeing over 10lbs and well before 4K it's at whatever the boost controller is set. We are still tuning, and expect to see slightly better spool up when we begin to advance the timing more.
We did have Precision build this turbo for this motor, and that may have something to do with the results.
Garrity built this motor, and I sent him your videos.
06-30-2011, 02:44 PM
#55
06-30-2011, 04:19 PM
#56
Race Car
Yeah I'm still impressed.
Thanks for answering my questions too through tge other thread. One other thing I am directly curious about is what clutch setup you're using. I have had a few issues myself and want to see what is really working. Tia
Thanks for answering my questions too through tge other thread. One other thing I am directly curious about is what clutch setup you're using. I have had a few issues myself and want to see what is really working. Tia
07-29-2011, 05:14 PM
#58
Three Wheelin'
Guess I was too optimistic in my first post in this topic where I predicted around 160 mph.
But really, traction doesn't matter much on tops speed events and as weird as it may seem, weight also plays small role. What matters though is aerodynamics (low drag and frontal area and the function of those) plus of course top end power.
But really, traction doesn't matter much on tops speed events and as weird as it may seem, weight also plays small role. What matters though is aerodynamics (low drag and frontal area and the function of those) plus of course top end power.
12-29-2012, 03:08 PM
#60
Burning Brakes
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Guess I was too optimistic in my first post in this topic where I predicted around 160 mph.
But really, traction doesn't matter much on tops speed events and as weird as it may seem, weight also plays small role. What matters though is aerodynamics (low drag and frontal area and the function of those) plus of course top end power.
But really, traction doesn't matter much on tops speed events and as weird as it may seem, weight also plays small role. What matters though is aerodynamics (low drag and frontal area and the function of those) plus of course top end power.
