Gentlemen,
Has someone answered if I can stack an H&S with a Smarty? I re-read the thread and I could not find the answer.

FOr The Record: I only promote H&S because it worked on my truck. I have ZERO dyno time and do not know my numbers. I WILL be buying a Smarty when available, have no idea how to load or use, nor how to get the H&S tune in or out depending on the stack but I will try my but off.

Guidance on the stack would be appreciated?

 

you will have to be VERY careful when stacking anything. these engines are dynamic timing. load odd numbers on the smarty on top of the H&S and MELT DOWN will happen. you will have to load even numbers on the smarty and never touch timing. it might be able to be doable but the risk is increased

OR

you will find out really quick if they don't play well together. it would be wise to borrow a smarty from someone first and try it before spending the money

 

Wait a minute, I thought you could not use the Smarty on 2 trucks. My buddy has a 1999 and I have a 2000 and he said it can't be used on 2 different trucks?

 

you can't. you will have to beg your buddy to offload it off of his truck then load it to yours to test. if it works, then remove smarty off your truck, give back to your buddy then order one up

 

Oh, no wonder he did not let me use it. Def. would save some money though, your right about that!

 

ok, new to looking at....well new to all this diesel & dyno stuff...

What is the different between the different HP and TQ columns?

 

Does the smarty with the S tune disable the EGR? (I know the ME does but I was wondering about the S).

thanks!

 

yes, "S" tuning shuts EGR off

 

obs is observed power (uncorrected) the readings on the left is corrected for altitude (we are a tad over 5000 feet and that day density altitude was stupid near 8k feet being 100 degrees out)

 

If you want to reliably compare apples to apples you would probably use the OBS power for RW power. Once you add correction factors and such, the calcs start to go out the window especially with an auto. Gear ratios, frictional losses, traction all make the final numbers look better than they are.

All in all still impressive numbers and it was interesting to see the change in the torque curve with the timing adjustment.

FWIW, I wouldn't bother stacking Smarty on the H&S. Don't see the point really as they both have their own ideas on what the performance is supposed to be (like the great timing debate). I know a few guys that poo-poo the Smarty because of "timing rattle". Obviously they never heard an 02 CTD? Really each vendor has enough to overpower the engine so using one plus the other is just a battle that's going to cost you an engine. I figure, pick your tune and work around that to get to the end goal.

For me, I was getting analog gauges no matter what, so H&S didn't impress me at all (not readily available at the time either). I like the way MADS thinks and how they work with the engine so I made my selection. I am not against H&S at all, they have some neat stuff.

 

Thanks that helps
for me its easer to see what is really happing by putting it in a graph....so i figure I can share that

 

those your numbers or are you really bored at work and graphed mine? lol i should have asked for a graph printout. didn't think about it at the time

 

Your numbers i don't have the wifes green light to do anything to the truck yet so I'm living vicariously through this forum....that and the bank account will not support it right now but thats what I get for buying a truck and camper within 12 months of each other

and yep its a SLOW Monday...Thankfully

 

heres how ya do it. create a paypal account, slowly stash money into it. $495 and just run "S" software. she can't see anything plugged in and you get the power and mileage enjoyments! YAHOOOO!!!

 

Now thats just EVIL! As if this site doesn't invoke enough drain on the wallet!