Why Are Skylines So Blody Pedantic

[WogsRus]

Well hi all.

It's propably just me or it's my car, but it seams that the car never, ever runs exactly the same twice.

On some mornings it pulls like a 6 year old, and other it's as flat as kansas.

Everytime i get in the car it seams to go differantly. I know the weather has a lot to do with the way it runs, especialy having a large intercooler fitted ect, but it kinda sux.

Does anyone else find that their car runs different at many times, or it is just mine?

I still have the stock ECU with an SAFC II, dump pipe and exhaust, new pump, HKS pod, running 10psi boost, FMIC and some others, managed 187 rwks at 10 psi.

I just find, and this could be still the problem with the stock ecu, that they have so much controll over what happens, that the car just doesn't seam to be thesame twice.

I have changed the temp senosr, 02 sensor and checked a few others, doesn't seam to have any problems.

ANY IDEAS???????

[Munna1]

Same mods as my car roughly.

Its probably all in your head mate but weather certainly does have a bearing on performance. You get used to the power but after driving standard cars and jumping back in it seems fast again.

[n15m0]

They aren't, yours is. get it checked out.

[chinkeboi]

lol you'll probably come across to your mechanic as insane and paranoid..

but yeah mine is kinda like that.. i think my coils are dirty.. need to get them cleaned

[Sumo]

lol you'll probably come across to your mechanic as insane and paranoid..

but yeah mine is kinda like that.. i think my coils are dirty.. need to get them cleaned

If your coils were the problem, you would have a miss.

and bit of resistancce in your secondary side wouldn't be too bad, as this will step up your voltage.

Cheers

Sumo

[WogsRus]

Well i don't actually think i have a problem as such, i have checked everything, leaks, gaskets, sensors (replaced two) new O2 sensor, tuned, timming, new pump, ect ect.

The only thing that i am 100% sure is that all my studs on th eexhaust manifold are OK, i did not pull all the heat sheild off to have a look at it.

But for example this morning, it run great, pulled dam hard, actually felt the 187rwkws it has. But other times it feals slugish and slow.

Also my coils are shot to shit, gap down to .6mm, so i don't think that is helping.

[LightAssassin]

I'd say it has to do with the driving. Heat soak etc...

Mine is near stock, when it's been sitting for a couple of minutes (motorway traffic) heatsoak sets in something terrible and I feel the drop in power.

Also things like where you park can affect it too (how much airflow / sun light), so when you start it up it could be quite warm already.

On a cool night mine feels like a monster, on a warm day, I can feel it get sluggish. What sort of airflow do you have to your FMIC? Where do you park?

If it is beyond those issues... then it's time to take it to the mechanic or tuner and ask them.

[WogsRus]

yeah well i park near the water, so nice and cool sometimes, and scorching hot other times.

I wasn't that i think the car has issues, but it's the first car that i owned with a turbo, and you certainly notice it.

[fcruz3r]

i have a stagea with the rb25det engine...only mod so far is a 3 inch turbo back exhaust and was wondering about the exact same thing for some time now

i dont think its anything wrong with the car as it still pulls hard at times...but after having driven for like 1/2 hour in traffic...just doesnt seem to have any torque left in the bugger.... might have something to do with the stock cooler ..but even the exhaust note is different after heat soak...seems to stutter more and pops every now and again on decelaration. but cant really complain...still goes like the clappers when i floor the gas

[B0oStEr]

When I first got my 32 it had lots of issues due to years of neglected maintenance an indifferent japanese owner.

I had the belts and plugs done, injectors and fuel filter, then o2 sensor, then coils, with each change making a noticeable improvement but it still feels flat sometimes.

It always goes hard on full throttle but seems to differ greatly in part throttle response.

On light cruise at 60kph sometimes I hear a relay tick and it feels like something is holding the car back and it's not the a/c as I first thought

because it has done it when the a/c was turned off.

It seems like the ecu is pulling some timing out for some reason.

[NickR33]

its the HKS pod + heat soak... is it shielded from the heat of the engine bay?

I had an HKS pod, unshielded, and the heat soak even on mild days was terrible... changed to an ARC box and it is much better... however its a turbo so will always feel better at night or on cold days regardless

FMIC actually helped a lot with heat soak too... I know they are supposed to block the airflow to the radiator and all that but I don't have any overheating issues... the stock SMIC used to heat soak sooo quickly

[WogsRus]

yeah at the moment my HKS pod is unsheilded as i have no time do make one up. The FMIC did help, but like i said, being a turbo, it sure is noticable.

I also think a lot have to do with the stock ecu, it has sooo much controll over the parameters, that i am sure a PFC would help aswell.

[toffy]

i live in the same area as you mate, mine suffers something severe from heatsoak , a pfc wont fix it, get a cai of some sort, asap, oh and go buy/borrow one of those laser heat detector thingys and measure your exh temp and cooler pipes either side of the cooler, and another thing you may want to consider is a bonnet vent of some type, just for fun sake space your bonnet up an inch or two at the rear drive it like that for a week and let us know the verdict

Edited October 31, 2006 by toffy

[WogsRus]

i have one of the laser temp things at work. I already have the spaces made up, my mate had a set, but i need to find them, they are under the house somewhere. LOL. My house is a mess.

Hay Toffy, hows about anwsering my PM, i'm still looking for a boost controller.

Yeah i'll have to get off my ass and make up a heit sheild and a CAI