eweb4200
New Member
I just finished my mechanical boost controler and was wondering the opinions of what is a safe number of boost to run in a stock 98 6.5 td
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safe amount of boost
- Thread starter eweb4200
- Start date
ak diesel driver
6.5 driver
12-14 max for reliability
tanman_2006
Just a farm kid...
Depends on the health of the engine I would say. But personally I wouldn't push past 10-12 to be safe. If it spiked to 14 then you will be ok.
Problem is if the truck is still running stock programing then boost much over 10 is a waste because you don't have enought fuel to see the benefit. Most people running stock tune usually say 8-10 makes it run well enough.
Problem is if the truck is still running stock programing then boost much over 10 is a waste because you don't have enought fuel to see the benefit. Most people running stock tune usually say 8-10 makes it run well enough.
Dieseldad97
I now know why.
Mine's set for 12 max.
Turbine Doc
Just Another Diesel Guy
You are are new to the site & possibly new to the 6.5, Welcome to the site you'll like our crew :85:
Some words of caution before trying to max it out start conservative so you have a strong baseline, I'll go out on a limb and surmise you aren't the original owner, 6.5s get a bad rap because people who had them abused them deliberately or ignorance, just because it has a Diesel engine does not mean you can just hook up to any load and start pulling.
Do us a favor go to the User CP button and update your signature so we know what you are starting with for a baseline, I'd say 10 psi would be maximum at this point until overall health is determined of the vehicle, more boost means more heat on the engine is yours ready to take on more boost, not enough info yet to say for sure.
Do you have boost & EGT gauge ? What are your coolant temps ?