I have a rcsb 5.3l i want to hit 13's n/a. what do i need to do to achieve this. i have lingenfelter gt2-3 cam, k&n fipk, ravin cat back exhaust, and allen nelson 89-93 octane tune. right now im runnin mid 15's and pretty disapointed. what the hell elso do i need? im not that fond of nitrous at this point either. is there anything i can do?

 

Something is off. I ran 15 flat with my xcab and cam, intake, catback.

Get some long tube headers, hiflow cats or delete cats, better flowing exhaust and tune for 93 only!!

 

What gears,posi,stall?RC or EC?A 3000 stall and LT headers will really wake up your truck.

 

its the stock 3.73 gears, locking diff. im not really sure how the stall would help that much after the tune the tranny shifts at 4 grand now which is right in the power band.

 

You might try moving your shift points to about 6400rpm,4000 is barely into the powerband.

 

A TC will get you off the line better. What was your best 60'?

 

sorry i said that wrong, the truck shifts at 6000 but starts out in the next gear at 4000....i have never looked at my 60' time but emagine its not good, shes a pooch of the line.

 

any heads that would make good power with the cam, or a head intake manifold combo. what about a 90mm throttle body

 

Long tubes,a 3000 stall and some sticky tires should easily get you into the high 13 in a RC.And bump your shift points up especially in the 2-3 shift,to compensate for big drop off in gearing.90MM TB won't help your setup the stock TB is'nt a restriction with your current setup.

 

Is there anyway to log some runs? That would help allen tune your truck and get the max out of it. Your times are way off.

Do you have anything heavy in your truck? Scan a copy of your timeslip so we can look at it.