sometimes jerky

[p34ch3y]

in the morning my cars a bit jerky only sometimes, even more so when my 007p is reversed,,,,,,,,,,

any idears

 

[David_smith_909]

is it when its cold? can get jerky if you dont warm it up properly

wouldnt have thought it would have anything to do with your 007p reversed as the only difference is that it "relies" on the spring, is your spring goosed?

 

[p34ch3y]

hello again smithy,

GOOSED!

 

[Forbez]

Probably as the air will be cooler and denser in the morning, than a warm afternoon, you notice it a little more.

Could also be your body isnt fully awake, and not reacting at optimum speed.

 

[David_smith_909]

hello again matey

you can check your DV by doing a leak back test

not too sure where the doco to tell you how to do this, otherwise i would post it upbut do a search and it should come up

 

[Forbez]

Its on the forge website.

 

[David_smith_909]

when its abit jerky, how long does it last for? until its warm, or after?

 

[p34ch3y]

yea ive seen the forge test smithy, it last bout4/5min max mate,,,,

so what may be up with me spring?

 

[acidstrato]

springs weaken and the dv ends up opening early

to test it you gotta push the piston up from underneath with a finger, cover the top nipple with another and the let go of the piston and if it comes right down then theres a leak. if it stays up then its fine

dont think this is your problem though, would be boosting incorrectly and sounding whooshy

id just say its cos its stone cold...try letting it warm up longer in the mornings before setting off

 

[oz_borne]

i have this problem, and have solved it by sitting and picking my nose for five minutes until it's warm, and then all is good.

My dv is reversed too and it's not leaking.

oz

 

[David_smith_909]

just make sure you warm it up properly mate

 

[p34ch3y]

y should it be so jerky tho?

 

[David_smith_909]

because its cold, your oil hasnt warmed up so everything isnt lubed up as well, also your n112 will be blowing in warm air into your airbox until your revvs drop (meant to be cool) your air/fuel mixture will also be wrong until engine is fully warm (automatic choke will be on)

 

[traumapat]

i actually re start the car after a min or so at idle. drives much better once off the cold start map

 

[p34ch3y]

[smithy] when you say the n112 blows warm air into the air box where about dose it blow into because i dont have a std air box im runing a ram air

 

[DPJ]

[smithy] when you say the n112 blows warm air into the air box where about dose it blow into because i dont have a std air box im runing a ram air

Your not getting any N112 air then. (I never had a problem with this when I was running a RamAir.) What spring have you got in your DV?

 

[p34ch3y]

just the std green one m8

 

[David_smith_909]

you should have a breather filter on it then mate

 

[DPJ]

just the std green one m8

Are you remapped?

 

[David_smith_909]

you only need to uprated spring in the forge DV if you are going past 250bhp i have been told by some very respected tuners, if you dont run your car above this, it is pointless getting the uprated spring