Good idea or bad idea?
#1
TECH Apprentice
Thread Starter
Join Date: Jun 2004
Location: Houston,TX
Posts: 355
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I am doing a solid roller setup that should spin to 8000 rpms. With a 28" tire and a 3.73 gear, the car pulls to 179 mph in 4th gear (I'm keeping my 6 speed). With a 3.42 gear, it pulls to 150 in 3rd gear. I want to be able to play around on the street with as minimal taction issues as possible, and I will be on et streets on the street. I'm hoping to trap around 145, so would it be a good idea or bad idea to spray of the line enough to compensate for the torque difference between the 3.73 and the 3.42? I would barely use 4th gear in the quater with a 3.73 gear, so I figure only shifting twice would be efficient. Not to mention, it would be a window switch, 75 off the line then probably 125 the rest of the way. What do you'll think?
#2
TECH Junkie
iTrader: (10)
Join Date: Nov 2002
Location: Deerfield Beach, FL
Posts: 3,672
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by mnc2886
I am doing a solid roller setup that should spin to 8000 rpms. With a 28" tire and a 3.73 gear, the car pulls to 179 mph in 4th gear (I'm keeping my 6 speed). With a 3.42 gear, it pulls to 150 in 3rd gear. I want to be able to play around on the street with as minimal taction issues as possible, and I will be on et streets on the street. I'm hoping to trap around 145, so would it be a good idea or bad idea to spray of the line enough to compensate for the torque difference between the 3.73 and the 3.42? I would barely use 4th gear in the quater with a 3.73 gear, so I figure only shifting twice would be efficient. Not to mention, it would be a window switch, 75 off the line then probably 125 the rest of the way. What do you'll think?
#3
10 Second Club
iTrader: (3)
Join Date: Dec 2001
Location: St. Charles, MO
Posts: 528
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
What tire height measurement are you using to calculate your max speed in each gear? Keep in mind that a 28 inch tall slick grows quite a bit more than a similar sized et street. I'd keep the 3.73's-179 mph in fourth is plenty fast for highway blasts-too fast even. If you really have a death wish; slam fifth-I've had to do it a few times on the street (4.56, 28x10.5 mt et drag).
With the kind of horsepower you are talking about (guessing 8-900rwhp) hooking on the street with a t56 is going to be a problem; regardless of what gear you are running.
I'd try a progressive controller for the n20.
With the kind of horsepower you are talking about (guessing 8-900rwhp) hooking on the street with a t56 is going to be a problem; regardless of what gear you are running.
![The Judge](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_judge.gif)