Headed to the track tonight
06-01-2014, 07:16 PM
#24
I wouldn't think the IRS is an issue. Didn't seam to be hopping in your video. Just gotta figure out why the DRs aren't doing their job. The only advice I can offer is get a killer burnout. My wifes SS ran better on the nitto 555Rs on a big smoky 10 second burn out apposed to a 5 second deal the track officials like to get you to do.
06-01-2014, 07:28 PM
#25
4th Gear Member
Join Date: Aug 2005
Location: alberta, canada
Posts: 1,940
Oh ok, but I still think that your biggest problem is that you probably did your runs before when it was 50 degrees or something. Now its like 80 (I'm guessing at temperatures obviously) and cold air is much denser than warm. I know my 01 used to pick up almost .1 when the sun went down and I had to adjust my dial-in the later it got. I remember watching Manny Bunginga do a 215 mph pass in 40 degree weather a few years ago. Big turbos love that cold air.
06-01-2014, 08:49 PM
#26
6th Gear Member
Join Date: Feb 2007
Location: North Carolina
Posts: 11,302
You are doing the better part of your burnout inside the water box. Might be taking too much aqua to the line/aka launching on wet tires. I spin mine for just a second or two inside the box, then roll out of the water onto dry land and let her spin another 4-5 seconds. Pick up as much of the track as you can. Drive AROUND the water and back into it as well, your front tires carry a lot of water otherwise. Its the little things man.
On the other hand, your 4.10s may simply be overpowering the DRs, but I doubt it. I pulled 1.6s on my nitto 555Rs in the SS. So they should be more than adequate.
As for your traps dropping, thats a little more complex. Could be that you are shifting too high, or tuning, or maybe there's a problem. A dyno tune should show any issues if there is one. Car is getting some age on her, so certain issues should be expected.
IRS isn't your problem. They get a bad rep on the interwebs for being bad for dargging..total BS. IRS do just fine if not better in some cases on the drag strip.
On the other hand, your 4.10s may simply be overpowering the DRs, but I doubt it. I pulled 1.6s on my nitto 555Rs in the SS. So they should be more than adequate.
As for your traps dropping, thats a little more complex. Could be that you are shifting too high, or tuning, or maybe there's a problem. A dyno tune should show any issues if there is one. Car is getting some age on her, so certain issues should be expected.
IRS isn't your problem. They get a bad rep on the interwebs for being bad for dargging..total BS. IRS do just fine if not better in some cases on the drag strip.
Last edited by Stone629; 06-01-2014 at 08:55 PM.
06-01-2014, 10:00 PM
#28
Thanks everyone for the responses. I appreciate the help. Although, I have been number crunching and I would like to see what you guys think. I have 3 excel spreadsheets of the weather temp and DA, 60's, 1/8 mph, 1000' mph/e.t., e.t., and trap speed. Any chance you guru's can take a look and give me some input, if there is any left lol.
Last edited by crash; 06-01-2014 at 10:06 PM.
06-01-2014, 10:41 PM
#29
4th Gear Member
Join Date: Jul 2008
Location: NC
Posts: 1,956
I don't think the runs are awful at all. At the end of the day its a basically stock 2V. Does anybody really expect it to stick 1.5-1.8 60 fts left and right? Thats tough to do considering how long it takes to get into the torque. 2.0 60 fts on a nearly stock 2V isnt the worst thing in the world.
The IRS has issues with durability and wheel hop but only at high horsepower levels. And that can be addressed with upgraded bushings/halfshafts + proper suspension tuning. Otherwise it is fine.
You might want to consider some go-fast parts or rethink what you really want to accomplish with this car. When money is tight there's not a lot you can do. I've been sitting on my hands virtually since I bought my SC for my car. I had all the power I needed but no suspension or tires to use it. I've slowly upgraded it but havent been to the track since. Kinda eager to get some drag wheels/tires and give it another go. I really need a nice stall too. Money Money Money.
Satisfaction starts with expectation in life. I'm not gonna go pout in the corner because I dont nail 1.4 60 fts like the veterans do. With time and upgrades i'll get there. Experience is very underrated at the drag strip. Its easy to sit here and see all the fancy times dudes run and then just expect it to happen for yourself.
The IRS has issues with durability and wheel hop but only at high horsepower levels. And that can be addressed with upgraded bushings/halfshafts + proper suspension tuning. Otherwise it is fine.
You might want to consider some go-fast parts or rethink what you really want to accomplish with this car. When money is tight there's not a lot you can do. I've been sitting on my hands virtually since I bought my SC for my car. I had all the power I needed but no suspension or tires to use it. I've slowly upgraded it but havent been to the track since. Kinda eager to get some drag wheels/tires and give it another go. I really need a nice stall too. Money Money Money.
Satisfaction starts with expectation in life. I'm not gonna go pout in the corner because I dont nail 1.4 60 fts like the veterans do. With time and upgrades i'll get there. Experience is very underrated at the drag strip. Its easy to sit here and see all the fancy times dudes run and then just expect it to happen for yourself.
06-01-2014, 11:03 PM
#30
@Hangwire- I think my primary concern with my times is in January 2012, I had 3.73's (as well as the same mid pipe and cat-back) and all season tires that were bought used in May of 2011, driven on for 7 months, and produced my best E.T. Since then I have driven ~30k miles on the car in two years, added drag radials, 4.10's, and have yet to improve on my E.T. My 60' times have dropped from 2.25 to 2.04 on average while my E.T. has not improved. That is where my concern lies.