1hd-ft boost

[adrian00]

what boost do you guys run when fitting an intercoller on a 1hd-ft engine

 

[-uhuru-]

hey adrian,

I would recomend getting a boost gauge... hd series engines boost 9 PSi stock... after installing an intercooler you are going to have a drop in boost because the air is cooler ... I would recomend compensateing the boost to 9PSi and take it from there...

If you still feel you can boost more get a pyrometer and install as close you can to your block... this way you can measure EGT's and boost safely...

let us know how it goes!

 

[-uhuru-]

you may aslo want to try to post in the international section since most of the guys here have FZJ80

there may be more diesel owners in the Int. section...

 

[LX_TREME]

what boost do you guys run when fitting an intercoller on a 1hd-ft engine

Only the intercooler? Should be the same not more than 9psi except if you have the Turbo Upgrade (Click on top left then scroll down)

 

[-uhuru-]

I noticed a BOV in this pic

what purpose does it serve on an HD if there is no throttle body?

nice link LX_TREME ... makes me wish I knew Japanese!

 

[LX_TREME]

what purpose does it serve?

By the way, those are HKS SQV the purpose of Blow-Off & Bypass Valves have one goal, prevent compressor surge. Compressor surge occurs when the throttle plate of a turbocharged engine closes and the pressurized air is forced back into the turbocharger’s compressor housing causing the turbo to slow down. Compressor surge not only decreases the spool of a turbo but can also damage its center cartridge.
P.S: About the HKS SSQV (Super Sequential Blow Off Valve) system.

 

[neowulf]

0,85bar

adjust the diesel mass screw inn 1-1,25 turn making the engine gett more diesel.

adjust this 2-3 notches clockvice

and eadjust this down intill you gett a black smoke dott when rewing and then back a bit.

oh and get a 3" exhost system will you, and a pop-off walve has no effect on a diesel.

 

[-uhuru-]

By the way, those are HKS SQV the purpose of Blow-Off & Bypass Valves have one goal, prevent compressor surge. Compressor surge occurs when the throttle plate of a turbocharged engine closes and the pressurized air is forced back into the turbocharger’s compressor housing causing the turbo to slow down. Compressor surge not only decreases the spool of a turbo but can also damage its center cartridge. P.S: About the HKS SSQV (Super Sequential Blow Off Valve) system.

thanks for the info... I'm pretty familiar with how BOV work and up do date in super sequentials... what i was trying to get at was what Neowolf said:

and a pop-off walve has no effect on a diesel.

Since there is no throttle body on HD series engine there is never any backpressure... at least not enough for there to be a reason to install a BOV... in fact the valve wouldn't even swooooosh

Thats why I was curious as to the use of that valve in the mentioned pic... maybe that kit incorporates a throttle body?
Maybe those those KRD guys are boosting so high that they use for protection?

All I know is we got some homework to do now!