OK guys, Jan 30 my friend rented the dyno for half a day.Any tips for me...
What gear to be in...

 

Give it hell!!!

 

Shooting for 300 hp

 

You should be able to hit that. Do you have a torque goal?

 

650-700 tq sounds good

 

id say 315/635
and start with the highest tune , on the worm engine, do it twice, than fiddle with other tunes. make sure the engine is up to full operating temp.

and good luck. its fun, belive me.

 

Highest tune and pedal to the floor. Also don't use your brakes on the dyno let them slow you down with there brakes. Have Fun its a Blast.

 

i only have 3 pulls,so start with the highest first? also what gear 3rd or od

 

if i were you i would not waist time on low tunes . go all out
do one pull with o/d on, and one with it off. now third pull with next setting down - do it with whatever o/d combo give you better# . and you all set.
o/d on off varies dyno to dyno.
id say with od on you should be able to load down the engine better.
see for yourself.
all trucks are like woman, all the same gender , but like diferent handling
see what yours like.

 

3rd, it will drop out of OD unless you have jodys dyno tune...

 

why will downshift to 3rd?

 

It thinks you're trying to pass someone.

 

is my injectors maxed out of fuel on Jodys 140hp tune or is there more?

 

i thought you want to run dyno in 1:1...so 3rd four you auto guys? and 4th for us 6spd guys

 

your injectors might be fine but your HPOP might not be able to keep up with oil demand.