Assuming you'll run somewhere in the mid 10s on motor... you're probably giving up 5 tenths to an optimized NA combo.

 

~11.0's n/a, 8.9's on the 250?
hope to find out in the next month or so.

 

you think the 250 hit will be good for a 2 second drop in ET??

I dont know n2o for **** but thats a lot in ET drop from the juice.

 

Thats what I was thinking on motor!

LOL your car or mine?

 

if you're interested I have a turbo spline protorque billet 9" converter for sale, I'll PM you the details...

 

Yep should do 10s on motor all day, as for spray id say low 9s....maybe high 9s

 

this is what it shows with a 28inch tire, 4.10 gear and 1:1 trans gear using a 4.10

Engine Speed (RPM) Speed (MPH)
8000 RPM 162.54 MPH
7500 RPM 152.38 MPH
7000 RPM 142.22 MPH
6500 RPM 132.06 MPH
6000 RPM 121.90 MPH
5500 RPM 111.74 MPH
5000 RPM 101.59 MPH
4500 RPM 91.43 MPH
4000 RPM 81.27 MPH
3500 RPM 71.11 MPH
3000 RPM 60.95 MPH
2500 RPM 50.79 MPH

 

converter slippage... gear for 6500

 

OK but how do you guys figure out how much power it should make? Is there a reference guide out there or something? Thanks and that means I should gear it for 6500rpms N/A correct? SO that will mean 3.73 tops.

 

i would figure somewhere around 450-500rwhp on motor, and then your adding a 250+ shot on top of it. i would say 700+ rwhp, give or take. i would put a 3.73 or less in there.

 

Ok then thats what I will look into. ALso as for lifters, do you think the stock ls7s will work. I know people are using them like Larry at speed inc and others. RUnning bottom 9s on them, but should they be considered?