[militaryman3756]

My turbo makes a fluttering noise when i let off the pedal real quick, is this turbo surge, if so, what can i do to fix this issue, i was thinking a bigger turbo but i'm not sure. I have a ts performance 6 pos flip chip and a k&n intake. getting ready for head studs later on and tranny valve upgrade but i need the turbo to function properly first. any help would be greatly appreciated.

 

[smokeshow101]

with the intake its probally just excess air nothing to worry about. Its just the extra air

 

[sirnunya]

why are you doing headstuds? stock is good till 40psi or more, doesnt look like you're even close to there yet

 

[militaryman3756]

well, i do need the head studs to keep them from loosening up and flying off the engine since i'm pulling 37psi according to my autometer gauges, maybe my truck is just a wonder i dunno, but i cut out the muffler and filled that space in with straight pipe and no cat at all, and it pulls 37psi like it sits. i run 13's-14's in the 1/4 and can hit 103mph on the on ramp before getting on the interstate. i know it has turbo surge but i don't know what to do about it, either a wicked wheel or a bigger turbo i guess.

 

[GoldieStroker944]

holy crap 37 psi with the stock turbo is alot i have heard 30 is pushing it

 

[sirnunya]

37psi, the stock turbo might last a day or two. 13's 14's?? stock turbo? no. high 14's is closer. 103mph on an onramp doesn't really mean anything, other than it was probably a long on ramp.

what is your entire list of mods that you know of?

 

[GoldieStroker944]

37psi, the stock turbo might last a day or two. 13's 14's?? stock turbo? no. high 14's is closer. 103mph on an onramp doesn't really mean anything, other than it was probably a long on ramp.

what is your entire list of mods that you know of?

thats what i thought the fins would be through the hood but i am not to tell anybody anything with out seeing it

 

[militaryman3756]

i'd be lying if i said i get it to hold at 37psi but it does get to it pretty easily and then goes back down to around 25 on the interstate and around 10 in the city. as far as i know i've done the foil delete, 4 inch homemade air intake with a 6 x 12 inch K&N, straight pipe exhaust, unplugged the wastegate, added a ts performance 6 pos flip chip with the 150 extreme hp setting, i usually run on the 75hp setting for better mileage and a lil more giddy up, increased fuel preassure mod, i know these turbos are only spec'd out for 30 psi and didn't know my truck would be pullin 37psi so i got scared and my turbo surges when it's up. it does run in the 13-14 second range, pissed off alot mustangs in clarksville tn, and imports as well. now i bought it used from a lot and i don't know whats in the engine other what i've done to it and told you about but, i'm lookin to port the heads and get a bigger turbo to handle it, need a better tranny valve body and torque converter, so thats why i want the heads to be studded, i've read where they have litterally blown off the engine from the preasure

 

[GoldieStroker944]

well i got the same chip (140 extreme tune) and mine didnt do that as far as i know but i could be wrong
o and try leaving it on the 140 setting when driving around town i got alot better mileage

 

[scheidt27]

if your running 13's on that set up something aint adding up??? to run 13's and 37psi your gonna need alot more than a ts chip. Im not sure if you can even get 37 psi out of stock injectors as well???

 

[sirnunya]

if your cruising down the interstate at 25psi, something doesnt sound right. I can cruise at 75mph under 10psi of boost. Does the check engine light come on at all? 13.9x is what 450hp trucks are running. I can guarantee without a turbo and injectors, you're not at that level.

 

[scheidt27]

if your cruising down the interstate at 25psi, something doesnt sound right. I can cruise at 75mph under 10psi of boost. Does the check engine light come on at all? 13.9x is what 450hp trucks are running. I can guarantee without a turbo and injectors, you're not at that level.

was thinkin the same thing, ive seen 500hp trucks running low 13's. just not possible with a stock setup. Unless his turbo isnt stock, different injectors and a custom burned ts chip

 

[cgarcon]

WHAT YEAR IS YOUR TRUCK. IF ITS 03 OR NEWER WITH A 6.0 THEN THE NOISE YOU HEAR IS A TURBO FART THERE IS NO WASTEGATE ON THE 6.0. WHEN YOU LET OFF THE PEDAL UNDER HARD ACCELERATION, THE BACK PRESSURE THROUGH THE INTERCOOLER CAUSES THE SOUND. THERE IS NO NEED TO WORRY ABOUT YOUR TURBO IN THIS SITUATION, HOWEVER YOU MAY NEED TO WORRY ABOUT YOUR INTERCOOLER BLOWING APART. IT IS POSSIBLE TO MAKE OVER 30 LBS OF BOOST ON STOCK TURBO, IF IT IS NOT REFLASHED. KEEP AN EYE ON YOUR WATER TANK MAKE SURE IT IS NOT PUKING WATER THROUGH THE LID. MY TRUCK WITH REFLASH STILL PRODUCES 31 LBS OF BOOST WITH REFLASH BUT PRODUCED MORE, OVER 35 BEFORE FLASH. TRUCK RUNS 13.8 WITH PROGRAMMER, EXHAUST AND INTAKE, AND EVERYTHING ELSE STOCK.

 

[sirnunya]

i'm guessing its a 7.3 since he put it in the 99-03 7.3 forum

 

[militaryman3756]

thats why i was asking for help, i don't want my truck to tear up on me. I can't leave it on the 140 setting, it boggs down when first taking off on that setting and blows a crapload of black smoke, not sure if thats good for it. and like i said, i don't know if it has stock injectors or not, i bought it used from a lot so i don't know what the previous owner had done to it. all i know is it gets where i wanna go pretty quickly and the turbo farts a little bit on the way.

 

[Southpaw]

It boggs down on the 140? somethings wrong.

You cruise around at 25psi? somethings wrong.

37psi on stock turbo and injectors? :shrug: i don't know man...


later

 

[Southpaw]

BTW, get the ATS housing for your turbo to completely eliminate surge.~~$425
get the Wicked Wheel compressor wheel to help with the surge~~$75

later

 

[militaryman3756]

yea, whats the word i'm lookin for here, hesitates is a better word for what it does on the 140 setting, it'll pick up but it takes it a few seconds, like the throttle is sticky or not getting enough air. it is a 200 7.3 and i really don't know what else it has done to it other then what i've already mentioned, i have no reason to lie about it, i just want it to run right without the turbo farting. I'm in afghanistan with the 101st so i can't go and tear it apart to see if it's stock or not, i just dunno, but this is what it was doing when i left clarksville in december. so i need an ats and a wicked wheel, will that fix it?

 

[planeoldguy]

If it farts when ya let off, thats NOTHING, just hearing the turbo block the air it doesnt need.

 

[militaryman3756]

yes the light comes on when it hits over 30psi and stays on for a few miles until it goes down in psi and a couple times it stayed on until i disconnected the batteries. so how do i get that from happening.