top end turbo bog

[snoboardman2]

08 d8 turbo pulls hard but at full throttle it bogs out after a few seconds any tips or possible solutions would be helpful. i tried adjusting all the top end adjustments on the attitude box but couldnt get it to go away.
thanks in advance.
Adam

 

[rdnorman]

Try turning your fuel pressure down

 

[Eli]

Sounds rich...try to get your single reds low and adjust wot afr's with the blue/green. I was playing with the box once and raised the single red up and it would sputter like a fouled plug, even when lowering the blue/green. Moved the single red back to 2 and all was well. I run the single red way down low (1-2) with the red switch point (blue/red) at 7.5

 

[rmsha146]

check your fuel pressure regulator make sure it isnt rising the fuel pressure too much i had what sounds like the same problem and the fuel pressure was hitting 100 psi under boost, you could also change plugs

 

[jskattum606]

check your fuel pressure regulator make sure it isnt rising the fuel pressure too much i had what sounds like the same problem and the fuel pressure was hitting 100 psi under boost, you could also change plugs

Also. Gap your plugs down to .020

 

[R_8_N]

pluged fuel filter? how many miles on the sled?

Mine was at about 900 miles and it wouldnt boost up for more than a few sec before it lean boged out. filter was pluged. ran fine everywhere just not at WOT. changed filter and WHALA PRESTO! it worked!

 

[Holomis International]

Also check and makesure you have doubled up on springs on your exhaust. If you haven't it will pull the manifold and pipe apart creating the same problem you are describing.

FLM Staff
www.holomis.com
info@holomis.com