Cranking up the boost on the 4D56TDIC

[luckytruck]

i remember there was one or two who tried yun open type na filter. di ko lang maalala.

noteworthy, balitaan mo kami sa 5 washers. hanggang 4 lang ginawa ko sa akin. maybe you guys can talk to woodfire, i think he heas a manual boost controller and boost guage on his pajero.

andy

[pajerokid]

Si KC and ako, we tried open filters, I gave up on mine and installed a drop-in unit instead.

[pparado]

Si KC and ako, we tried open filters, I gave up on mine and installed a drop-in unit instead.

what made u give up on it?

[pajerokid]

nugundam93, yeah replacing the turbo would make a world of difference. Both in performance and price hehehe.

Actually I'd be happy with the Thailand spec Variable Vane Turbo released with their 4D56 powered Stradas.

[nugundam93]

pajerokid: pwede pala drop-in and no need to change the tubings? kasi i noticed na you have to screw in the stock air filter dun sa parang air intake drum...

also, i've added 3 more washers, so 6 washers each na. boost spikes to 15psi from the old 12psi using 3 washers each but drops down to 14psi with an accompanying pfshhhh sound like a weak BOV...i think dun na lang kaya talaga ng wastegate, ayaw niya prolonged 15psi. i'll confirm further when we have a funrun this sunday. :D

[pajerokid]

ingat lang nugundam, 6 washers/screw is uncharted territory for us In any case, do give us feedback.

On the open filters, you have to remove the stock air filter box before you could install the open filter. you have the option of using the stock rubber tubing which connects the airbox to the turbo. deskartehan mo na lang with the bits and pieces which come with the open filter to make it fit the tube.

I'd post pics kaya lang all of em were wiped out becoz some idiot failed to back them up during a WinXP reinstall (that idiot would be me hehehe)

[nugundam93]

pajerokid: hehehehe...onga, kaya ako dami ko rin pinagtatanungan about how much boost the engine can take with stock internals. anyway, will post asap regarding feedback :D

yay, payday na in a couple of days, intake naman...will try the suggestion :D

[pajerokid]

I used a Simota unit. kung maalaga ka and you follow the cleaning intervals, you'd be fine, i guess.

Yung sakin, sa sobrang dusty ng roads nag clog and the turbo sucked the metal mesh and twisted it. naging twister tuloy yung erstwhile cone shape filter. lucky for me, nothing got sucked into the turbo, nung binaklas ko, i found some plastic parts crushed, and again luckily none went into the impellers.

Believe me guys, performance wise, walang pinagkaiba ang open sa drop-in.

With the drop-in, you get open type performance, stock water-proofing and dust shielding.... but of course it comes with stock looks.... which to some people is actually an upside.

[nugundam93]

thanks sa feedback. i guess i'll go K&N na drop-in...and i might add another air intake tube that gets air from the grill area also.

sakal kasi eh if stock i/h/e and boosting 12psi. the h/e setup will come later, along with change turbo.

[pajerokid]

Actually, i dont think you'll need that extra intake tube since theres one already built in on the fender-side of the filter box. Kainis nga e, dust comes from said hole and dusts up a particular part of the filter.... hence the need to rotate every thousand or so kilometres. Eto reason for existence nung white plastic tube (with fins) in the stock air filter. It distributes the air coming from the hole instead of letting the filter suck it in directly.

[nugundam93]

hehehe...onga eh, pansin ko rin, dun lang nag-iipon yung dust.

[falken]

i'm planning to try the wastegate mod but am lousy at diy, could any of you guys recommend a shop or mechanic that's familiar with turbo? :help!:

[notEworthy27]

PK, what do you mean by rotating every thousand or so kilometers? Parehas lang ang performance gains from drop-in filters and opentype filters?

[nugundam93]

falken: any shop actually can do that. where ka ba? :D

[falken]

falken: any shop actually can do that. where ka ba? :D

sa sta. cruz area, but anywhere in metro manila puwede ako pumunta.

[notEworthy27]

where could I find the thai variable vane turbo specs? I couldnt find it in google. :D

[pajerokid]

jedd, the Variable Geometry turbo produces 14hp (more or less) in the same 4D56TDIC. Not sure lang what other components they changed.

I meant iiikot yung filter because if not, only one side of the filter will get ditry. and over time this will deteriorate the filter oil and allow dirt to come in.

[notEworthy27]

ah!! now i get it! hehe so dagdag maintenance talaga. :D

diba our stock turbos produce 12 psi? 4d56 engines can only handle up to ilang psi?

[nugundam93]

not sure about the stock psi ng 4m40...but pwede naman deduce na two washers added made 11psi, added an extra washer and it made 12psi, so 1psi/washer and therefore, 9psi stock boost. boosting 14psi max ako through 5 washers, 15 pa nga spiking eh on 6 pero sumisingaw yung plumbing, or bumibitaw yung wastegate, dunno yet.

noteworthy: yup, dagdag maintenance.

falken: ahhh i see. alam ko merong clearer pic dito ng modification of washers. here's what i did, malabo lang nga kasi used a 3650 cellphone to take pix: http://mymitsuph.com/modules.php?nam...=1249&start=30

[dabar]

makakatulong din po ba ang blanking of EGR valve, di ko lang alam mag attahced ng acrobat or image mula sa pc ko para makita kung paano.