Help, My Turbo Wont Spool Up In 1st Gear

[/2on]

Hey Guys weird problem, i was driving round yesterday then suddenly noticed that my turbo wont spool up in first gear, if i put my foot flat down from stand still it will but if i take off normally then try and boot it my car will only get to the point where the boost is about to kick but it wont its like driving a NA car. Once i change to 2nd or any other gear tho everything works fine......

Nothing has been changed on it recently

The car is a 33 with a catback exhaust and pod filter

[race_snooze]

check vacuum line to BOV, in fact check all hoses.

[SilverECR33]

thats strange, why would a hose make it not boost in 1st then work fine in all other gears?.

[/2on]

yeah the thing is i checked all the hoses which all appear to be fine.... and like silver said is every other gear works but 1st thats why im lost on this one

[SKYHY]

yeah the thing is i checked all the hoses which all appear to be fine.... and like silver said is every other gear works but 1st thats why im lost on this one

well i know my car when it was stock it would boost in 1st but after i added all this mods like you said wont boost but if i rev it too about 3500rpm i can take off with full boost.

[2gceffy]

my car does that, rb25 also

you take off and you can feel it want to go but doesnt n soon as i go to shift you feel the power come on soon as you put clutch in.. have no idea what causes it mate, now i think bout it it happens in all gears 90% of time at night time

might be rat sh*t mixtures?

Edited February 19, 2007 by 2gceffy

[CEF11E]

check to see if your actuator is connected or working properly. they have a diaphram in them that can burst.

[gts-4 dreamer]

ermmm my car runs best at night... can REALLY tell teh difference when intake temps go from 10-12 deg to 22-25 of daytime

10-12 she pulls 18-22 already gutless but better that a 6 banger n/a, 22-25+ gutless 4 pot pushing up a hill.

always boosts gets positive air pressure anywhere over 2k, full punt by 3k+ no matter which gear.

but even @ 15 deg she;s already prettty gutless, @ night with real cold temps she feels slugish these days though. no guts at all, but reckon thats me getting used t it. Could swear she pulled harder a month-2 ago.

meh

[2gceffy]

mine makes boost (says the boost gauge) but no power..

maybe check to see if its making boost on the gauge and maybe check volts?? could that effect it ??

[lingeringsoul]

i think its the gear set for the skylines....ultrra short in first, i've wondered about that as well......just fast shift to second coz 1st gear is only good for take off

[MANWHORE]

nope nope nope. What ceffie said is correct. make sure the actuator is working.

With my stock turbo, I used to hit huge boost in first. I've hit 16 psi in first when I was testing stuff.

My car when stock used to boost VERY well in first. If your car is not, then you hvae a problem

[/2on]

Yeah see the thing is in the morning it was working absolutely fine, then suddenly it just started happening, i think i went over some really bump railway track and then it started to happen, im not 100% sure that, that was the cause but its only thing that comes to mind that may have been a cause for anything to start randomly going on.

Ill check out th actuator tomorrow, but anyone got any idea why only first gear would cause the problem with the actuator cause that just seems a bit odd that it only happens in 1 gear??

[sky-017]

after i added my mbc - i noticed shit take of in 1st . i have a gfb . but im looking at getting something better - because like the turbo tech , they just arent holding boost . maybe that could be your problem - im sure its mine . i also have a leak somewhere , it only starts wistling after iv put my foot down and let it to idle ... i still need to work out where the leak is ! - im also considering replacing all the stock vacume hoses .

check all your hoses - is my opinion.

[/2on]

No the thing is i dont have any boost controllers on its all controlled by the wastegate actuator but if i get one of those turbo tech boost controllers would that help the problem because that would be controlling the boost and not the wastegate actuator is that correct?

Yeah i did check the hoses it was the first thing i did but as you said i might even try replacing all the hoses see if that helps also

Thanks for the help guys

Edited February 20, 2007 by /2on