njgheewala

Hello guys,
I have this question that I asked to any o;d car drivers and I always get mixed answer. I am pretty sure it depends on the person but I wanted to get a pool going on this. This is for all Z cars that are fuel injectors only...So all the S130's, Z31, Z32...etc.
The question is:
When you guys start the car in cold start do you want for the RPM to get to idle or it does not matter?
I personally like the RPM to get to 1k (or at least close) before I start driving. My bro-in-law also does the same thing. But I have heard from people that doing that will wear out you engine, u are just wasting gas (I don't believe that), FI cars do not need to be warmed up before driving...etc. On the other hand I have heard that getting the RPM to idle speed at cold start can help engine.
So with all this confusion, I put this question in poll format here. The pol could also help determine how many percentage of people actually do what?
I would be very interested to see that results, so please put your input and your expertise to help others on this forum do the right thing to their Z!

SpeciallySpiked

I believe warming up is more so for your oil, regardless of the fuel delivery system

scorpionp54

i warm up. if i don't i get lots of hesitation and misfires. but my engine rpm are always right under 1000 during warm up. over all she runs better when shes warmed up.

at-jefft

ya, I believe that its just for the oil

First one on here:
http://www.popularmechanics.com/auto...o/4205233.html

NismoPick

Idling the car till running temp is a waste of fuel. As for the first post of that article by ^^^ Popular mechanics... it would take A LONG time to wear out a motor at idle... that was kinda pointless to say the least.

You should drive easy until the motor is at running temp. BMW put a variable rev limiter on its M5's that raises the rpm limit as the oil temp rises.

http://www.conceptcarz.com/vehicle/z12964/BMW-M5.aspx

hchase17

well i would think that the car is gonna warm up eventually wther its moving or not and probably quicker while driving just because the engine temp is gonna rise..and its a fact idling is a waste of gas...ive actually seen it in a lot of places that warming your car up for more than 30 seconds is just a waste of gas

njgheewala

I do get the fact that it would be helpful for a cold car to warm up to get the oil temp to get to working viscosity...but I never thought that idling for couple of minutes would be a waste of gas. If the popular mechanics says it is that I guess it is ( I have not read the full article). I warm up my 280zxt but I don't do that to my other non Z cars
It would be really nice to get facts about warming and not warming, but keep the conversation going so that people (specially me ) can have better idea.
Thanks all for your input...

Bleach

In snow or really cold weather I will often wait for one full minute of idling before driving.
No matter what the weather is like I always drive it gentle and never over 3k rpm until the temp gauge starts to move off the bottom. Even though its not full temp at that point I feel better about driving harder if I know the water and block are at least 120+ degrees.

duowing

I usually would just drive away after starting up even on really cold days. I'd never get on the car remotely hard, but I would usually just go. Alot of times though when it was really cold or snowy the car got to sit for a few minutes anyway as I'd start it up and put the windshield defroster on while I cleaned off and scraped the car off.

WildmaN

I usually let it run for a minute or 2 tops. Then I go on my way. Of course I have been having problems. With my car dumping too much fuel when cold. I am thinking the stock regulator is getting bad. I have been thinking about, trying an aftermarket fuel pressure regulator again. For the people that know. I am running with an aftermarket JSK fuel rail. Anyway, there is my input.

BlueKitsune

I let my car idle for 60 seconds or a little more just to make sure the oil is flowing through the system, And I drive easy till its around 130F but seeing as I'm going to 50MPH pretty much right after I leave my house it doesnt seem to matter, oddly I seem to have better power when cold, probably better compression.