R33 Turbo 'clicking Noise'

[v_s_p_e_c]

2 problems from 2 different skylines.

1 First problem is when my friends S1 is underload and boosting a rapid clicking noise can sometimes be heard coming from where the turbo is. This only occurs occassionally however more so when its colder or higher boost is run. Just your thoughts on what it could be thanks.

2 My other friend has a series 2 which recently had a bosche 500hp rated fuel pump installed after the stock one failed and has noticed at about 4500rpm the engine begins to struggle with something and shudders when the foot is to the floor. He took it to Toycar and they said it was because he didn't have enough back pressure from a turbo back 3 or 3.5 inch exhaust. Just wondering if anyone has any other theories as i know plenty of skylines with large after market exhausts that don't suffer from this problem.

Cheers for any help

Edited May 29, 2006 by v_s_p_e_c

[MKDR33]

for ur turbo question, i reckon ur turbo might be on its way out.. is it a stock R33 turbo? how much boost are you running?

for ur second question, its seems ur mate is having coilpack problems which are common in R33s.. check out the following thread for help.. http://www.skylinesaustralia.com/forums/in...howtopic=119403

Edited May 29, 2006 by MKDR33

[Psymon]

Ticking might be a stuffed gasket.

[race_snooze]

ticking could be pining???

[v_s_p_e_c]

Thanks for the help guys i think i have the Series 2 problem figured out with a little help from Mick, thanks mate.

As for the series one clicking noise i'm still unsure. Almsot sounds like a car with a flat battery trying to turn over and it just clicks if any one knows the noise. Or the compresser or impeller clipping a wall, which i know it couldn't be.

The car was recently serviced and tuned running at 9psi

Edited May 29, 2006 by v_s_p_e_c

[Primordial]

Thanks for the help guys i think i have the Series 2 problem figured out with a little help from Mick, thanks mate.

As for the series one clicking noise i'm still unsure. Almsot sounds like a car with a flat battery trying to turn over and it just clicks if any one knows the noise. Or the compresser or impeller clipping a wall, which i know it couldn't be.

The car was recently serviced and tuned running at 9psi

Mine does this too... I'm running an apexi turbo tho..

What boost controller is he using? It sounds like a relay clicking back and forth reeeally quickly aye.. .maybe 20 times a second?

[thommo]

if he has an avcr, on some units the solenoid will ping like crazy when it is working (keeping a set boost level). mine does it, doesn't really bother me tho

[Primordial]

Yeah i'm running the Apexi Power FC Boost solenoid kit.. Its ticks like a little bugger when on boost but i can hardly hear it over the exhaust/turbo whine anyway! Im pretty sure there is nothing wrong with it...

[thommo]

yep, avcr and pfc boost kit run the same solenoid

[bazr33]

yeah i have a AVcr, my solenoid on my strut tower.

so ya can hear it tapping the strut tower when im windin up boost.

doesnt bother me, i ahve the stereo up usually,

but just lets me know its working.