Fastest Impala's in the world - Top ET page - Drag Racing Info Page
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1,992 Posts
4100 lbs is with all the nitrous stuff but no AC.
I'm guessing each turbo weight about 30 lbs, + the piping and intercooler and water/meth injection pump should add up to 100 lbs at least.
I have to admit that I'm pleasantly surprised of the performance of the stock brakes. I have rear discs from a 9C1 and stock B4U front brakes. I've installed premium rotors and pads but nothing too fancy. I've also changed both "bolts" in the combi valve.
It brakes really well considering the weight and speed but it creates A LOT of brake dust after a pass! cwm4
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1,251 Posts
You have 20 more MPH to go on those brakes. Mine are stock on the rear and the fronts are just a better rotor with Hawk cold pads. So far it's stopping 4500 at 156 MPH with no issues. The setup is fine driving around and the only thing you have to watch is you don't want to drag the cold pads. They let you know if you are as they squeal. Talk to Bill Harper on brakes as I think he knows the most across the board.
The only other change is a vacuum pump instead of engine vac. Two reasons for that.
1. That makes 30 inches of vac at all times so your power brakes really have some power!!
2. If the motor dies, stalls or anything, I still have full brakes and that's a big deal in the safety factor.
You may want to think about changing to that. You stall your motor at even 140 MPH and you may not get it stopped. All you have at that point is what's in the booster.
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4,814 Posts
Works for me... http://www.top-et.com/impalass/
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229 Posts
Yea but have any of you tried clicking the "Details" button? Mine comes up blank on every single car on the list. I could give a damn what people run if I can't see the mods and other important details listed that info was golden....Hasn't worked in over a month for me.
And I thought it was just me.....
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229 Posts
I tried 3 different browsers, I am happy to know that I am not alone. I really would like to see this get fixed!
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2,422 Posts
Yea, I just clicked on my fast pass and there were no details, and I know I put every detail in.
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27,206 Posts
I will ping Cheston
I have an observation/ question in regards to the ET page...
So if you take the top 20 for example, you have a few guys who hold multiple places (Steve Morris, Mike Smith, Glen Koenig) and obviously the further down the list you go, the more evident this multiplication becomes....
My question is, the guys who are repeat offenders (in a good way!), are they on the list multiple times because they own several Impalas/ Caprices or is it just based on the slips they have submitted in relation to the rest of the community?
The lists I have seen were always basically broken down into the fastest pass a given driver has made in his specific chassis regardless of current or past motor/ trans combo.
I guess what I am getting at.....if Steve Morris submitted 20 of his fastest passes for his wagon, and they were all sub 8 second passes, would he now hold the top 20 spots on the list?
Not criticizing or anything like that, just curious where some of the redundancy comes from and how the list works? Maybe I am missing something.
Regardless, Thanks for maintaining a valuable piece of information for the community....i know this stuff takes a lot of time to keep up to date.
So if you take the top 20 for example, you have a few guys who hold multiple places (Steve Morris, Mike Smith, Glen Koenig) and obviously the further down the list you go, the more evident this multiplication becomes....
My question is, the guys who are repeat offenders (in a good way!), are they on the list multiple times because they own several Impalas/ Caprices or is it just based on the slips they have submitted in relation to the rest of the community?
The lists I have seen were always basically broken down into the fastest pass a given driver has made in his specific chassis regardless of current or past motor/ trans combo.
I guess what I am getting at.....if Steve Morris submitted 20 of his fastest passes for his wagon, and they were all sub 8 second passes, would he now hold the top 20 spots on the list?
Not criticizing or anything like that, just curious where some of the redundancy comes from and how the list works? Maybe I am missing something.
Regardless, Thanks for maintaining a valuable piece of information for the community....i know this stuff takes a lot of time to keep up to date.
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3,774 Posts
Karl had intentionally left multiple entries for the same car in the same class when he thought the setup had changed enough to merit attention for how the change in setup affected performance.
But over the past few years, the "duplicate" entries have been largely just a result of lack of time for Karl and Cheston to perform maintenance/cleanup. I know Mike Harris and I have duplicate entries where there's really no significant setup changes, just tweaking and refining.
I've tried to avoid the duplication when I've submitted entries by emailing Cheston or Karl something to the effect of "10.xx timeslip to replace 10.yy current entry in the list, but I can see how that loop doesn't always get closed if they're in a hurry.
But over the past few years, the "duplicate" entries have been largely just a result of lack of time for Karl and Cheston to perform maintenance/cleanup. I know Mike Harris and I have duplicate entries where there's really no significant setup changes, just tweaking and refining.
I've tried to avoid the duplication when I've submitted entries by emailing Cheston or Karl something to the effect of "10.xx timeslip to replace 10.yy current entry in the list, but I can see how that loop doesn't always get closed if they're in a hurry.
Got it, makes sense. I was just curious.
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3,271 Posts
Just Noticed Karl has my Pure Stocker car in Class 2 (Stroker) and Corbitt Marshburn's in Class 4 (Heads/Cam)
Should be changed to Class 4. Heads/Cam
Actually our cars are a lot closer to HOBO.
We both use an IHRA Legal Pure Stocker Cams.
When you look at the specs we are allowed a F-body cam with the Stamped GM Stock Rockers. Basically a B-Body cam with a 1.6RR rocker.
Both of us have our cams made with a LCA near identical to the B-Body.
We also have to use the Factory Stock Spring Pressure.
Which is the first thing Tech measures.
Corbitts car ran at F/PS weight(listed 3990#) and mine running G/PS Weight (4310).
For performance comparison.
Corbitt's car is about 65# heavier than Pat Kish's.
Corbitt ran an 12.392/102.86 and Pat a 12.365/107.21
My Car 12.887/103.64 but at 4310.
Demonstrated how close the IHRA Legal Pure Stocker cam is to the 1.6 RR on a B-Body cam.
What ever mechanical power advantage gained with the reground cam is lost to having to use Stock Spring pressure.
IMHO our Pure Stockers would fit better under Bolt-On section.
Dan
Should be changed to Class 4. Heads/Cam
Actually our cars are a lot closer to HOBO.
We both use an IHRA Legal Pure Stocker Cams.
When you look at the specs we are allowed a F-body cam with the Stamped GM Stock Rockers. Basically a B-Body cam with a 1.6RR rocker.
Both of us have our cams made with a LCA near identical to the B-Body.
We also have to use the Factory Stock Spring Pressure.
Which is the first thing Tech measures.
Corbitts car ran at F/PS weight(listed 3990#) and mine running G/PS Weight (4310).
For performance comparison.
Corbitt's car is about 65# heavier than Pat Kish's.
Corbitt ran an 12.392/102.86 and Pat a 12.365/107.21
My Car 12.887/103.64 but at 4310.
Demonstrated how close the IHRA Legal Pure Stocker cam is to the 1.6 RR on a B-Body cam.
What ever mechanical power advantage gained with the reground cam is lost to having to use Stock Spring pressure.
IMHO our Pure Stockers would fit better under Bolt-On section.
Dan
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3,774 Posts
Crazy Dan,
Let's see the duration numbers on those "Pure Stock" cams
They're capable of spinning a lot higher and making quite a bit more power than stock duration cams. Stock lift means ramps are gentler, thus managing to work well with the light springs.
You're right; you should be in Class 4. Email Cheston and Karl to fix that for you.
Let's see the duration numbers on those "Pure Stock" cams
They're capable of spinning a lot higher and making quite a bit more power than stock duration cams. Stock lift means ramps are gentler, thus managing to work well with the light springs.
You're right; you should be in Class 4. Email Cheston and Karl to fix that for you.
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3,271 Posts
A full Stocker cam can sing high rpms.Crazy Dan,
Let's see the duration numbers on those "Pure Stock" cams
They're capable of spinning a lot higher and making quite a bit more power than stock duration cams. Stock lift means ramps are gentler, thus managing to work well with the light springs.
You're right; you should be in Class 4. Email Cheston and Karl to fix that for you.
283's twist 8000rpm in Stock and 11,000rpm in Super Stock.
They have as much as 350# Seat Pressure on hardened hydraulic lifters.
Pure Stocker's have to use Stock Lifters, Stamped Rockers, Spring Pressure. 85# Seat Pressure.
Cam card and it is right on Stock Open/Close, Overlap, Lift for an F-Body Cam.
Bullet moved the LCA to 110 Degrees for tighter torque curve.
Everything else has to fit.
Mine is about all done at 5900rpm. That is about it.
The Stock Springs at Lash will go 6300.
That is with the Dampers which add about 10lbs of Seat Pressure.
My cam is milder than Corbitt's because I wanted to drive mine to the track.
His G/PS Wagon was 2 tenths quicker in the 1/8th..
D
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27,206 Posts
Let's make sure this gets in this thread and stays here...
SSmitty's 8.50 at 158 run at ISSCA Nats 2014 - Charlotte Motor Speedway zMax Dragstrip
http://youtu.be/pS9cEXmGVHc
Here is the timeslip, SSmitty is car #1413.
1.227 60 ft time, 5.4 1/8th mile at 128. Jeeze Louise...
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SSmitty's 8.50 at 158 run at ISSCA Nats 2014 - Charlotte Motor Speedway zMax Dragstrip
http://youtu.be/pS9cEXmGVHc
Here is the timeslip, SSmitty is car #1413.
1.227 60 ft time, 5.4 1/8th mile at 128. Jeeze Louise...
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