It will with the 33x10.5W slicks I have.

 

So I need a tach is what you're telling me?

 

Or a dyno run....you can pretty much use your speedo after that...

 

Well if your ever down in the area it would be fun to get some diesels in the mix with all those cars that cost $100k+

I may see if Mike from HotRodDiesels can bring out his truck. Its a street legal 97' with the factory power windows, factory AC, stock IC, and last I spoke with him he was sunning 10.0's in the quarter.

 

i really need to re-gear my truck, im lucky if 3rd gear takes me to 32 mph! can somebody do that calculation for the 4:10 ratio

 

Wow I can hit 30 in 2nd. I kinda wanna try 3.07's!

Yeah good call. We have a dyno right here at school. It needs to go back on anyway.

Who wants to take a guess on my hp tq? Last time someone was right on with the hp!

 

best way to get a set of 3.07s is along with a whole truck...

 

Let me know your tire size and I can give you speeds and rpm in all 5 gears.

Going by the stock speedo and 4.10's you'll be running 4200rpms at 32mph in 3rd gear.

 

If your going by 30mph on your speedo then your running 3400rpms at 30mph in 3rd gear.

 

In case anyone is wondering, the formula to figure out engine rpm is:

Tire Radius / 168 x engine rpm / final drive ratio

 

can someone tell me some more about this please.thank you

 

I use HPTuners to do most of it because you just plug in the ratio's, tire size, and redline rpm and a full graph pops up.

But for anyone who want another simular program to give you the same info here is a link y'all will love.......

http://www.f-body.org/gears/

I still do custom LS tuning and used to run a 2000 Z28 M6 with alot of Lingenfelter goodies. HPTuners is also handy on the Dmax, but not nearly as good as EFI Live. I'll be ordering the DSP5 soon. Anyway thats a different subject and different play toy.

 

Well basicaly the 3200rpm spring will set the gov to 3200rpm with STOCK throttle rotation. If you back the high idle screw out to where its set just before the mechanical stop then you will get much more rotation on the throttle shaft. This pulls the 3200rpm spring longer with more tention on it, effectivly increasing the resistance on the gov to defuel. Its pretty common to be able to run up to about 3500-3600rpms before defueling. But you will need to relocate your linkage to the next inner hole and be sure its adjusted correctly so when the go pedal is on the floor you get full fuel.

I can try to find a picture of the relocated linkage if you need it?

 

Relocate it like if you move the linkeage to the inside hole on the throttle lever?

 

Just like you can go up to 3600 without defueling with the 3200 GSK, you can logically go up to 3000 with the 2600 STOCK GSK....