High EGT's w/smarty boost fluctuating

[RRamsey]

I am noticing the boost fluctuating when between 23-27psi and part throttle no load. you can hear the turbo speeding up and slowing down. Also It seems to get to 1450-1500 deg pretty easy, 3/4 throttle accelerating gets to 1400+, smarty set at #4 tnt w/stock timing, my 12v didn't get that hot that easy. What the heck would they hit if I put the smarty on level 10??? Bone stock 98 w/holley blue, 4"exhaust, BHAF, Smarty TNT on #4w/stock timing, waste-gate on. I want to turn it up but cant with these EGT's.

 

[ASchwartz]

Ditch the BHAF.

 

[RRamsey]

I dont have many choices for an intake since no-one builds one for my application.

 

[JCasper]

What turbo are you running?

 

[Forrest Nearing]

so just put a better 4" inlet filter on your current setup



but your boost fluctuation is most likely a rail pressure fluctuation due to the Smarty program you're running

 

[RDyson]

The even # settings don't add any timing and will run hotter. Try an odd # setting and see what it does.



Randy

 

[mconstable]

I was told my situation was a fluke... my truck was doing the same thing when I put my Smarty on, I was to re-download the program, after that, it was fine... worth a try.

 

[Forrest Nearing]

it doesn't happen if I set my rail pressure to wild, but then my cruising rail pressure is a little higher than my liking, so I just live with it/drive around it.



I have loaded multiple softwares and they've all done it unless I jack the rail pressure.



I think my twins might have something to do with it

 

[Bob4x4]

The TNT software is not for a stock truck :-laf I would be looking for more air,both in and out. Or just go back down to the std revo.



Bob

 

[RRamsey]

Bob 4X4,



In the book for the TNT software it clearly states that their hp. settings were achieved on a Bone stock truck meaning stock intake and exhaust. I have a holley blue lift pump and a BHAF and 4" exhaust. Has been running much cooler and seems quit a bit stronger since I set it at #5 with modified timing.

 

[Bob4x4]

Bob 4X4,



In the book for the TNT software it clearly states that their hp. settings were achieved on a Bone stock truck meaning stock intake and exhaust. I have a holley blue lift pump and a BHAF and 4" exhaust. Has been running much cooler and seems quit a bit stronger since I set it at #5 with modified timing.

I think it is more like the Revo is for stock the tnt is MORE



Bob