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Dec 11, 2011 | 03:17 PM

#16

dyhrdford

Tuned

Joined: Aug 2006

Posts: 405

Likes: 42

I understand the benefits of using this "fooler" you guys are referring to, but what I dont understand is the possible ramifications of using it. My thinking is if the PCM is defueling, the turbo is spinning at, for ease of explaination 95,000 rpm. If you make the PCM believe there isn't as much boost then it throws more fuel to it, you end up spinning the turbo at 115,000 rpm's, thus making more boost than the 23 PSI. Now, if the turbo isn't designed to be able to handle the added speed the chance of it scattering is greatly increased. Does this make sense to anybody else?? Thinking outside the taco shell...

Aaron

Dec 11, 2011 | 03:27 PM

#17

Bonanza35

Lead Driver

Joined: Sep 2005

Posts: 9,399

Likes: 188

From: Norco,CA

Quote:

Originally Posted by dyhrdford

Aaron you got a hold of it. With a tuner everybody wants more tork and HP at different times in the power curve. Now to get that you don't want your engine defueling all the time. Now some tunes build in defueling

when the EGT's go to high like in towing, and some don't therefore the gauges you need to watch. With a tuner you can make your stock turbo hit 30psi which is not good for it. Thats why people in stall other turbos. The 38R is a direct replacement without any extra work. Not all like that turbo and use others. Anyway more air usually means lower EGT's with correct tuning, still need gauges. My 2cents, Chet

Dec 11, 2011 | 04:44 PM

#18

HD Rider

Cargo Master

Joined: Aug 2009

Posts: 2,137

Likes: 13

From: Glendive, MT

Quote:

Originally Posted by Riffraff Performance

Shipping on Tuesday

I
m a happy camper now. You the man!

Dec 11, 2011 | 04:46 PM

#19

HD Rider

Cargo Master

Joined: Aug 2009

Posts: 2,137

Likes: 13

From: Glendive, MT

To use a blowoff type valve successfully in the map line, you need a orfice between the intake and the blowoff valve. That way it is not blowing off all your manifold pressure, just enough to trick the map sensor.

Dec 11, 2011 | 04:48 PM

#20

dmanshane

Thread Starter

Tuned

Joined: Sep 2011

Posts: 399

Likes: 1

From: Ness city Kansas

ts 6 pos chip stock high idle 50 75 100 140 stock turbo ported ats housing i am wanting to get a 38r but cant afford it right now

Dec 11, 2011 | 08:01 PM

#21

dyhrdford

Tuned

Joined: Aug 2006

Posts: 405

Likes: 42

Chet, thanks for the explaination. So using this fooler is just a more economic way to achive the higher boost pressure levels and not throw codes and/or defuel rather than installing a new turbo?

Dec 11, 2011 | 08:24 PM

#22

dmanshane

Thread Starter

Tuned

Joined: Sep 2011

Posts: 399

Likes: 1

From: Ness city Kansas

if i am not mistaken it will still defule with a 38R if u dont have a fooler the 38R is on my to do list but i did buy a different type of fooler from riff raff heres a link Riffraff Diesel: OCR - Overboost Code Regulator this does not bleed off boost it just regulates the pressure to the mapp sensor which i believe is a heck of a lot better than just blowing good boost pressure off to the atmosphere and think when i do buy the 38 R it will be very useful

Dec 12, 2011 | 12:01 AM

#23

Bonanza35

Lead Driver

Joined: Sep 2005

Posts: 9,399

Likes: 188

From: Norco,CA

Quote:

Originally Posted by dyhrdford

Chet, thanks for the explaination. So using this fooler is just a more economic way to achive the higher boost pressure levels and not throw codes and/or defuel rather than installing a new turbo?

Well with stock tuning your not going to see extra high boost levels except in extreme conditions like towing

heavy up a hill. So yes and no. The tuner will ask for higher boost levels to go with the new fuel curves being used. More boost, fuel, HP and hopefully wider tork range. Without the fooler the PCM will defuel before you can get the hole advantage out of the tuner. At least a custom tuner.
Chet