Boost Not stable... problem??

[jinkl]

quite hard to say la for ur thing
errr err , as i know its nt easy to achieve high boost during
1st and 2nd gear cos of gear ratio n load on some cars
urs errr let me do some thinking hehe
have u tried fixing in a tulang ikan n trying or nt ?

 

[Jack_Hon]

quite hard to say la for ur thing
errr err , as i know its nt easy to achieve high boost during
1st and 2nd gear cos of gear ratio n load on some cars
urs errr let me do some thinking hehe
have u tried fixing in a tulang ikan n trying or nt ?

ikan tulang also can used as a boost controller, it's boost surge happen, when rev high boost is drop !

 

[renxun]

your turbo is not supplying enough under low load engine operation... same as my prob last time... boost set on 1.4bar.. first gear pulled my arse off only get 0.9bar... 2nd gear 1.2bar ,3rd gear then only can get 1.4bar..

after changing to something bigger then the problem solved.... 1st to 5th same boost reading no matter how i step on it.. =)

 

[SDF]

mons v6

subaru legacy is RHF4 = still very small to put so much load on it. it's only a lil bigger than TD025.

It has limitations.

 

[monsterv6]

your turbo is not supplying enough under low load engine operation... same as my prob last time... boost set on 1.4bar.. first gear pulled my arse off only get 0.9bar... 2nd gear 1.2bar ,3rd gear then only can get 1.4bar..

after changing to something bigger then the problem solved.... 1st to 5th same boost reading no matter how i step on it.. =)

changin something bigger?...hmmm turbo bigger??

 

[renxun]

if you still need response but yet enough supply , try get a reasonably size turbo and hybrid to larger fins at the suction side

 

[monsterv6]

hmmm meaning....??im so the technical person ler on turbo...

 

[jinkl]

hehehe , small turbo's now ? then better visit SDF :D kekekekek

 

[SDF]

no offence to mons_v6....but trying to push a TD025 or RHF4 past it's boost efficiency would run it into areas where things like...

boost creep
unstable boost
over boosting
loss of power
choking
surging
damage to turbo

....everything has it's limitations.

 

[monsterv6]

means my RHF4 no that good turbo???

 

[sumimasen]

wut sdf means, ur rhf4 may not "suit" ur application due to its natural limitation, maybe u r "killing" it now..

 

[monsterv6]

hmmmmm i dont think so cause alot of people are using it and it seem to be ok...and i dont think im getting any solution here....:(

 

[GT_AUTO]

just an advice.nobody here try to let u down.:)

 

[monsterv6]

ok lor..thanks for the advice ya guys...:)