wha could be the cause of poor boost? my boost gauge goes to 7 max its a jap import auto 1989 with a gauge with 7- and 7+ only and only seems to go over to right to about the 6ish mark..

any ideas should i get an aftermarket boost gauge?

Yes, a leaking balance bar would be a boost/vacumn leak...but the stock gauge is in mmhg x 100 , and going to 6 is about 12psi (stock is 9.5psi)

 

but saying that, they are famously innaccurate.

where would i get some good o rings as nissan want 25 quid for a set !!

robbery....

i think the bloke who had it before me and everybody before him aswell never changed them while changing plugs as they are as flat as hell and i have just scrapped of shit loads of hermatite that previous plug changer must have put on with a F*****g jet hose...

where would i get some good o rings as nissan want 25 quid for a set !!

robbery....

i think the bloke who had it before me and everybody before him aswell never changed them while changing plugs as they are as flat as hell and i have just scrapped of shit loads of hermatite that previous plug changer must have put on with a F*****g jet hose...

 

http://www.screwfix.com/prods/27385/Automotive/Automotive-Accessories/Metric-O-Ring-Set-419-Pc;jsessionid=EMPJ5KWS1JGPGCSTHZOCFEY :)

An after-market boost gauge would be a good idea, just so you know what's happening under the bonnet, as Legrath said, the stock gauge is pretty inaccurate...

 

My stock gauge only twitches a little at full beans, i've got a lovely bonny boost gauge, but misplaced it, and can't find it :-( I too am having boost issues, so need to see a true boost reading myself!........

Nice one Znut, i think you might have saved many people a few quid with that link...... :-) :-) :-)

znut nice one i could get one of those tommrow cheerrs

god i need this car sorted soon its driving me mad and i have loads of goodies to fit ,

but cant do nothing till its running right at stock first..

i know it has a filter fitted seems to be metal mesh type and possibly some sort of after market set of pipes and a oil cooler ...

got a chip and boost controller to fit aarrhhhh

i tell you what now i think i have seen them in aldi i think but it was ages ago...

what about all the vacuum hoses etc if any of these are old and have poor seals could this cause probs too ...well i know they should be tight but some of mine seem a little baggy with age .. what are all the pipes on each side of the car going to like a small pump looking thing with wires going in it and lots of tubes and t pieces ???

What, next to the 9 pence beans? :-) Ya can't knock em, I bought a laptop from Aldi for a grand (???) it was the dog's doo dahs :-)

i tell you what now i think i have seen them in aldi i think but it was ages ago...

 

yes but a long time ago

maybe it is just me and i just expected car to be much faster...maybe im thinking it has problems and maybe 6 on the gauge is 12 psi and it is ok what ever i will change pipes and o rings anyway and put a gauge on

Yeah they would cause problems, any pipe with a bad seal potentially could cause your car to run like a bag of, well, poop.... Not too sure which bit ya mean there, can ya be more specific? (although someone else with sooooooo much more knowledge than me will come along in about 30 seconds and tell you exactly what it is) :-)

i really thank you for the link znut as i promise you i have been to every engineering and plumbing place around andrrew page europarts and eventually nissan i gave in but when thewy told me the large ones were 8.56 plus v at and small one 6.50 plus i told them to keep them .so yes you have save me 20 quid and i will have loads of spare too ;-)

they look a bit like washer motors like the ones that spurt water is that what they are ?

i really thank you for the link znut as i promise you i have been to every engineering and plumbing place around andrrew page europarts and eventually nissan i gave in but when thewy told me the large ones were 8.56 plus v at and small one 6.50 plus i told them to keep them .so yes you have save me 20 quid and i will have loads of spare too ;-)

 

no probs mate...ive got the imperial box set as well.bargin and very handy for the hose pipe connectors,plumbing,and most water and air based sealing flangers:)

probably when im done i will need a proper 300zx driver who knows exactly how they should perform to drive the car ....

and give me the list of jobs i need to do ...