NA R33 Performance Issues

[ReneeR33]

I recently bought an R33 GTS 1993 model Skyline, On cold starts the revs rise up and down between 1000 and 1500 rpm for the first couple of minutes untill it is at operating temperature, it is also seriously lacking performance, i'm not sure whether it has been serviced properly as i am the first owner in australia.

anyone have any ideas with the cold start problem and maybe a checklist to get the engine running properly?

thanks

[Greg]

It is meant to idle at approx 1500rpm for about 5 min or so until the engine warms up. It should not fluctuate however.

I'd start by giving it a decent service. At minimum change engine oil, oil filter and air filter (or clean air filter).

Its amazing how much difference an oil change can make.

[NA_R33]

what greg said and if that doesnt help i would be getting someone to check out or replace your idle control solenoide as well as check for vacume leaks.

[chowetime]

if you are the first Australian owner then there is a host of things that you can do to make it go quicker and more econmical extractors - mandrel bent - big flow cat- bigger t/body port and polish match inlets a rising fuel pressure regulator and some sort of engine management and maybe if you are really keen find yourself some cam gears and advance the timing a little this should see you add extra h.p and more importantly more torque in the low to mid range

[Eug]

did u import an R33? congrats.

by lack in performance what are you comparing it to? a couple people here have CA18 and RB20E R33 GTS... Check if you have one of them.

Pretty much what Greg said, and I'd do the fuel filter, radiator flush, spark plugs, gearbox oil, differential oil, brake bleed, new brake pads probably.

These are relatively old cars, so they need a lil more attention - and the peace of mind knowing that every fluid/filter is changed is good.

A dyno run would show if the engine is running ok too.

Eug

[skyla]

Do what the others said first, if it's doing playing up after a good service, remove the aac valve and give it a good clean in throttle body cleaner or petrol. It fixed my cars iradic idle problem.

[ZABOOM]

hello, just wanted 2 know how 2 advancethe timing? heard heaps bout it but dont know a thing about how 2 do it....( any help would be just great!!!

[Eug]

rofl! u'll need a timing light..

otherwise do what john does (NA_R33) and advance it till it pings and back it off a few degrees. p.s - not advised

[ZABOOM]

thanx 4 that Eug!

hey that box that u built 4 the pod filter... does that work well? i've been trying 2 think of diffrent ways! and also how much waz it 2 put the drift wing on? thanx 4 the help!

[Eug]

yeah mate - i've written up a thread about the differences it made (with a dyno print out of before and after)...

i'll pm u abt the wing