rockittboy

ok, so im lookin at the quad boost fooler on ebay and the ad is saying

"On 2003-2004 5.9L Cummins you will need to physically modify your wastegate to gain more turbo boost. Doing this without the Boost Fooler will result in check engine lights and codes set into the computer. Stock 03-04 trucks should generate 23-24psi of boost pressure stock. With the Boost Fooler you will be able to run 35+ psi of boost dependant on your fueling enhancements.


The 2004.5-2007 5.9L Cummins uses an electronic wastegate which is operated off of the MAP sensor. In this instance no modifications to your turbo will be necessary. Stock 04.5-07 trucks typically spike up to 32psi of boost pressure. With the Boost Fooler you will see up to 40psi of boost on a stock truck and up to 48psi of boost on heavily fueled trucks."

my outlook shows spikes of 31-32 at WOT, and if i understand correctly the triple dog does not do any boost fooling. soooo...is this guy incorrect about the boost i should be seeing on an 04? and, can i just plug the vaccuum line going to the turbo in conjunction with this? or do i still need a boost elbow? thanks

qzilla

You can make more boost than 23-24 psi on the older trucks but, the ECM starts beacking fuel off after 23ish psi. Depending on the truck and the program at some point you will set an engine light. It is possible to move this limit in programming.

Now the downside to not having an acutal fooler is that the ECM can still record the peak boost levels. With the boost fooler it will not record more than about stock.

moparmatt

ive never seen past 28 psi on my outlook monitor it usually will just spike to 28 and thats it i was wondering if i should have more?..althought i have a boost fooler on its way in the mail

rockittboy

i have the low end power option on right now, maybe thats it. anyone else notice the low end setting makes the tranny shift weird with medium throttle application?