Post by
rb25drag »
https://forums.nicoclub.com/rb25drag-u76935.html
Fri Aug 15, 2008 12:26 pm
Well Since we have the same car with the same motor, Ill give you my tips,
First, Is to get some type of Posi or LSD, I personally run a Welded stock rear end, The RB seems to like the 408 rear gear.
2nd, I would get a Bigger tire, I run 275-50-15's BFG DR's and Im Having a problem Spinning to the 60ft still, But Im also running a 2 step, So you shouldn't have the same problem i am.
3rd, The Rb likes leaving between 5,000 and 5500RPM's.
I leave at 5500 off my launch control @ 10lbs of boost. The last time at the track I was only cutting 1.7 60's Spinning threw the 60' mark.
I have went 1.6 60ft with a MT Drag Slick and No launch control, leaving at 5500-6,000, But as a suggestion watch out launching as hard as I do, at a 6400RPM launch I snapped both axles, Also at a 3,600RPM launch on my launch control I Twisted the U-joints out again makes 2 sets. ( I have upgraded the Driveshaft to hold bigger U-joints now from ShaftMasters)
But so far on a set of Stock axles New, New Driveshaft, new launch control, DR's and 15" wheels, I have did almost 20 Passes with No breaking @5500RPM's.
Hope that helps.