If anyone hit the 10's you would have heard about it. I would like to take one of the 570-580rwhp ones down the track a couple of times to see what they would do. At that power level with a well prepped track it would go 10's but it seems like most of the are in the 520-530 rwhp range. It's gonna b real hard to get those in the 10's.
Here are the dragstrip details. A little background first, to start with in 2012, the last 8-10 runs in my 97 were 11.0X. over the winter I did some work and the first time out it ran a 10.91. My 60' times are always 1.6X unless the strip is very slick. I just wanted to emphasize that I have a little experience with launching a viper. The 10.91 was with a DA of 2500.
1. The first trip to the strip this year with the Gen 5, I pulled off the air cleaner and the pcm set a code and the car went into a limp mode. This was relatively late in the year due to the late delivery. The car stayed in limp mode and I did not have my scan tool with me. I removed the code when I made it home.
2. The second trip to the strip (one week later) was at the Ohio Zone rendezvous. Day one was a rain wash out and day two was wet in the early AM, therefore, very little time to test/tune. The DA this day was 3500.
3.The whole key with this car is the launch. I tried the launch control and found that you cannot get that to work at the strip due to staging/timing issues.
4. My next tries were with the ESC full off. The problem is with the aluminum flywheel and pushed-up torque curve, the car bogs when it gets traction about 50 ft off the line, that means you are not going to get a 10.XX with that bog. Another problem is that even with the 3.55 gears, the overall gear ratio is higher (numerically lower) due to the extremely high (numerically low) first gear ratio
The next two tries were a 11.61 and a 11.62. There were two reasons for the times, the DA was 3500 and both of these runs had a 60 ft time of 1.93 or higher. For those of you that don't drag race, the ET will come down a minimum of twice the reduction in the 60 ft time.
Those were all the runs. I did not like the ET, but, the potential is there for a 10.XX. It is all about getting the 60 ft time down to about a 1.7 or lower. I tried slipping the clutch, the problem with that is, this clutch does not like it. Again, it is all about getting the car off the line without the bog, that bog comes after you gain traction ,therefore, hard to anticipate.
Off topic, but, I am going to post the 97 for sale this weekend. It is a great NA car that probably can do a 10.7.
Last edited by Jack B; October 17th, 2013 at 09:52 PM.
It works on the street, however, when you have to do a burnout and stage, then, go to "launch" control while worrying about your opponent, it is not feasible to get it done every time at the strip. If you are not worried about an opponent, it will work.
Originally Posted by Newport Viper
Jack so this sequence dosen't work as advertised??
Very interesting jack. Thanks for posting. I wonder if the gen4 clutch will work? It is ok to be slipped. I have run several 1.7x 60' times with my stock gen4. I launched the gen5 at voi12 and the clutch slipped but it smoked = doesn't like it. I slipped it the same way I did my 08. Good news, it Didnt bog but I wouldn't do it to my own 13 very often if at all. I thought it was a matter of over powering the clutch by applying too much power too soon before clutch is completely engaged.
if it quits raining i will try to go tonight before i have to fly to Hong Kong tomorrow morning. If not, our last track day this year is November 8 and I will try to make that. Yes, stock tires on mine.
I tried the launch control on the street and what a joke....LOL....First try with the nannies ON it wheel hopped so bad my teeth flew out of my mouth like someone threw a handful of chicklets into the cockpit! Next try was with all nannies OFF...it boiled the tires immediately and even though i tried to feather the throttle, it was too late...the 60' time was wasted and even now that a month has gone by, the street where I launched has two long, wide BLACK stripes impregnated into the asphalt, telling the wannabies that play on that same street that there is a BIG DOG in town!
Really though, the Launch mode is rather crude. I own a ZL-1 6 speed Camaro and the launch mode on it is much better on the street. The ZL-1 Launch mode at the drag strip though is poor....even though Chevy did alot of testing on dragstrips, I could easily out perform it using my own technique.
No one ever said Vipers are easy to drive.....but was very satisfying when I figured out a launch method and made a good pass in one. This Gen V will be the same as its forefathers....tough to launch with a very small "sweet spot" between bogging, spinning and slipping the clutch.
Jack & Utah,
Did you guys play with Tire Pressure at all when you were at the drag strip with your Gen V's?
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