boost issue

Stroker f-250 · Jul 13, 2012

i know there are alot of threads about wicked wheel and how they compare to the stock compressor wheel and what stock turbo boost numbers should be depending on mods. but i couldnt find one on this. i had my stock compressor wheel in my stock turbo and i could floor it empty going up this hill and see 19 psi boost. since i put my WW in and i can go up the same hill empty again and floor it and the highest i see is 14 maybe 15 psi boost. was wondering if this was normal

Groomzybanshee · Jul 13, 2012

You should be seeing much more than that if tuned... You must have a boost leak.. Did you get the o ring back in the end of the compressor housing?

Stroker f-250 · Jul 13, 2012

yes i got the o ring in ok.they say the wicked wheel helps with surge thats why i got it is because my stock one would surge.well it doesnt surge no more ill give it that but i didnt think id loose boost pressure

Groomzybanshee · Jul 13, 2012

You should still be making more than 15 psi... Try unhooking your wastegate line and see what psi you get

TARM · Jul 13, 2012

Maybe the waste gate need to be adjusted. IF its too loose it could be leaking a good bit.

Dieselboy. · Jul 13, 2012

FWIW the WW will flow less air then the stock one, hence why it helps surge... But, these guys are right, you should see closer to 22-25 in a hotter tune. Did the spyder and the IC pipes all go back properly ?

Stroker f-250 · Jul 13, 2012

Dieselboy. said:
FWIW the WW will flow less air then the stock one, hence why it helps surge... But, these guys are right, you should see closer to 22-25 in a hotter tune. Did the spyder and the IC pipes all go back properly ?

thats what i was thinking. but yes i cleaned the spyder and it went back on good and the ic clamps are tight.

neverkickn · Jul 13, 2012

Im assuming you pulled the charger off the truck to install the wheel. Are you sure you got the collector hooked back up to the turbine housing good and tight? A drive pressure leak can cause low boost too.

littleredstroker · Jul 14, 2012

I just pulled compressor housing when.I did mine. Seeing 25 max. 20 under moderate XL

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Justin@DP-Tuner · Jul 14, 2012

neverkickn said:
Im assuming you pulled the charger off the truck to install the wheel. Are you sure you got the collector hooked back up to the turbine housing good and tight? A drive pressure leak can cause low boost too.

When this happens, you will definitely know it. You will hear a super loud hiss under the hood. Been there, done that LOL

Stroker f-250 · Jul 14, 2012

I started just to pull just the compressor side but I went ahead and pulled the whole thing out. I'm pretty sure I got everything good and tight but I'm goin to double check compressor side bolts..the only thing that I know is different is I broke the EBPV plug trying to get turbo off the pedestal :doh:

Groomzybanshee · Jul 14, 2012

The you put the acuater it's self back on the ebpv?

Stroker f-250 · Jul 14, 2012

Groomzybanshee said:
The you put the acuater it's self back on the ebpv?

yes it is still on there..i checked compressor side bolts and they are all tight and i unhooked the wg line and tried it and that did nothing for me

Groomzybanshee · Jul 14, 2012

Did you hook the map line back up?

Stroker f-250 · Jul 14, 2012

Yes because that's what I have my boost gauge into

Groomzybanshee · Jul 14, 2012

Does the truck feel like it runs good or like a turd?

Stroker f-250 · Jul 14, 2012

Well I guess it runs good for what it is but this is the turbo that came on the pickup and it has like 330,000 miles on it so could it be a little wore out?