Help have to beat my brother in race!!

[JamesStevens]

This Saturday I have a race scheduled against my brother. He has a 08 Durascrap, stock except a Predator chip 120hp



I don't know if my truck profile is going to work (hasn't so far) so:

07 5. 9 srw, K&N, 5 inch turbo back, Smarty 06, getting stage 4 ATS trany installed Wednesday. That should be all the go faster parts, I am just wondering the best settings for the Smarty. I have torque managment on medium but I hear to turn it down so I don't drain the rail quick. Should I try the 170hp setting or 130?? Oh ya I have full gauges, what is acceptable to pull the rail down to at WOT ??

Thanx

James

 

[JDerbedrossian]

Those durumax's are dangerous with a programmer, but you may have an advantage with a built trans and the smarty set on kill.



Jake

 

[06-1-ton]

Idk man those new duramax's are freaking quick. From my expierence racing, i have a 6 sp but he will beat you off the line bottom end is good on them but past 55-60 you will pull away. at least thats how my race happened with mine and a stock 08. But i still say you should beat him... Good luck

 

[SierraRam]

Haven't had the privelage of a go against a new Duramax yet but they can be quick.

 

[Simplysmn]

So far I am up 2 against dmax with the bug:-laf they hate the fact a 4 cyl beat em thATS the fun part Oo.

 

[JamesStevens]

Hey thanx for the replies guys, anybody know the minimum I should pull the rail down to with the smarty turned up?

 

[DE Jeeper]

With my set up the rail will not go over 22k and when I lay into it, it goes from 18k to 10k and then back up. I think my injectors are my problem and I will hopefully get a new cp3 soon. Do you have a high pressure rail gauge? If you do just monitor it on some practice runs and see how it dips an different settings.



Aaron

 

[speedyjdl]

With stock injectors you should be alright with rail pressure. Crank the smarty and if you have a lock up controller for your new transmission then you should beat him no problem.

 

[TCDiesel]

Those LMMs are fast I have play with a few and you will need the jump ,so make sure it a 10psi launch. or its going to be really close

 

[JamesStevens]

Sorry I should have put in my truck profile, I do have stock injectors, and yes I do have a rail pressure and lift pressure gauges. I am getting the ATS co pilot, I will see how that is, to be honest I like driving around in tow haul mode anyway, even empty. I have tried searching on here 'minium rail pressure' but couldn't find what I was looking for. I thought I read 18k is the minimum to bring it down. The first thing I am going to do when I get her back is crank her up to #9 and extreme torque managment and see what happens. I was just wondering what to expect. Thanx guys

 

[JamesStevens]

Update

Just a update incase U guys were wondering, I did beat him in the race, it wasnt to much of a race really < > I got him of the line and all the way up. I was worried about my rail pressure for no good reason. Even on the smarty cranked, it dropped a bit when I first hit her, then quickly built back up to 23k. Thanx guy, we don't have to worry about those durascraps so long as they only have a 120hp chip. (wish I didn't have to spend $7000 on transmission just to be able to use my chip, BUT I have plans for more toys next summer)

James