OutOfSight

Ok I know my crazy larry has the option of raising the rev limiter, but does it defuel after 3200? I need to buy new tires and want a wide set of 30 inch falkens but I need to make sure I can rev that high?

FunFinder5

Tires and rev'ing to 4k rpm? The two don't compute???

Are you talking about the trucks mph speed limiter and higher speed rated tires?

You could run 4k rpm in 2nd and not max out your factory tires speed rating.

If your talking about doing 4k rpm in 4th gear... that would put you doing 140+mph!

Why, all I ask is why?

OutOfSight

With the factory rev limiter of 3200, with 30 inch tires you would only have a top speed of 111mph. I need to see if the bullydog de-fuels at all when you raise the rev limiter past 3200, or if it can run to 4K without any defueling. BTW with 30 inch tires max speed is only 139MPH at 4K rpm per my calculator.

FunFinder5

OK, so no answer why you'd want to go that fast... My only assumption to that answer is you'll be leaving a bank soon really quickly and trying to get out of State/Country ASAP!

Don't want/need to know any more encase the Fed's start ask'n questions around here.

WYODSL

You shouldn't have any "defueling" problems reving that high if you have the right tune. What version are u running?

I have buried my speedo many of times with my lift and tire set up I know their only 35x13.50's but still. I would think you would be able to pull to 4k easily especially with the nox.......smarty however will not fuel past 4k on my truck but it might on yours since yours is an 06

OutOfSight

Truck fest is coming up, so I need to be able to run trap speeds around 120+

I'm running 2.4.D

WUnderwood

please show me video of your Common Rail spinning happily past 4K RPM "especially with the nox"

OutOfSight

Lol yeah same here.

mdavlee

2.4d on my old truck seemed to fuel to 38-3900. It is like hitting a wall when you get there though.

SMOKIN-U

does anyone know how to figure speed base on rpm and tire size?

SAVOY1964

http://www.bimmerzone.com/speed.htm

This site may help

OutOfSight

http://www.catherineandken.co.uk/sti/tyres.html

These are you transmission ratios for a 48RE
2.45
1.45
1.0
.69

enafzige

First time doing this, so we'll see if this works.

Here's my first truck pull, at the Anderson County fair last Thursday.

http://http://s981.photobucket.com/albums/ae294/enafzige/?action=view&current=truckpull.flv

I loaded the Smarty TNT/R #9, TQ 2, RP 2, Timing 2, high rpm tune...

Because of the small DD clutch, I just came out of the hole at about 2,800 - 3,000 rpm and dropped the clutch as soon as possible. I bogged a little, but as the smoke was clearing, the SPS66 lit and I tacked out at 4,000 - 4,100 the whole way down the track.

I unloaded the drivetrain too quickly at the end of the pull, and the truck was still fueling hard...it shot up past 4,500 rpm somewhere

Oh well, came in 4th out of about 48 trucks or so...


--Eric

FunFinder5

I just watched that 3 times... Thanks!