supercharged cars in winter.
 

Hey all. Its starting to dip into the negatives here in canada.



Yesterday it was -10 C, and on cold start when the car does that load thing to warm up the cat, my car was making boost at idle. I doubt that's good when my oil temperature is at -10 C.




Should I look into a different tune for winter?




Edit: car is edelbrock supercharged.

buy a civic type r for winter duties. it's the only reasonable answer.

I've also pondered this, wanting a supercharger in future

Lol. Thanks I needed a good laugh.

i feel ya, the increased revs on start up on a fi engine, but theyre not THAT high. not up at like 2.5k rpm. theres no load on the engine though. i saw a picture of a $2,500,000 Koenigsegg regera rs driving in the snow, the caption was "think about this next time you want to take your shxtbox off the road for the winter" i was like dang that steering wheel costs more than my car.

cold start rpm wont cause your engine to fail, dont sweat it. sweat tracking without an oil cooler, or doing the valve spring recall.

Do you have an oil cooler? You may want to consider something that will help warm the oil up quicker like the Forester XT regulator or the Jackson Racing. Otherwise, I'd say just drive it gently till everything is warmed up. Don't you Canadians have engine block warmers too? I believe Subaru offers one.

Having grown up in Edmonton, a Lower Radiator Hose Heater works much better that the standard block heater if your going with that option. It circulates warm water throughout the engine and radiator not just one spot on the block. Plus it is a lot easier to install.

This!!

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I spun a crank bearing on my original motor so Its still in the back of my head. I'll over worry till the cows come home.


The main reason I was worried was because it wasn't even really cold outside (-10c isn't bad) and my boost gauge shows 4 psi on first start up and my xhaust is popping and banging lol. it's the -30 days I'm worried about.

A Civic Type R would be a wild ride, wintery, greasy, slippery roads mixed with a FWD with 300+bhp wearing wide tyres with crazy low profiles... I think the Twin would be a better companion even if supercharged.

You can always bypass the cold start idle by moving the car in gear for a second. I do it in the morning if I plan to idle before leaving for work.

You only 'idle' before leaving for work.. not favouring idling throughout the day??

Modify the tune to reduce the cold start effect?

But the thermostat is closed. The pump is only circulating fluid available via the bypass circuit. Block heater is the way to go.

FYI Vortech states not to run their units below 25f due to changes in already tight tolerances. Might be a CYA type thing, but they are a pretty reputable SC company. When it's that cold I drive my 97 4Runner and leave it in the garage. Not sure about the Eaton TVS design, but I expect tolerances to be pretty tight too - I'd ca Edelbrock and ask them about it. You could always pick up an engine warming blanket, but all that is too much pain in my ass. At this point a 2nd beater might be a better bet.

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This is my third winter with JRSC in upstate NY. I also have the Subaru oem oil regulator installed. Rotrex compressor never gave any trouble. Last winter, I thought, engine tune was causing rough idle at very cold temperatures (around and below 10F). But it was fixed after replacing the MAF sensor. I don't know about the Edelbrock compressor, but supercharged FA20 has no problems. I just use 0w20 oil, warm up the engine only one minute before driving, don't go wot until engine is completely warmed up (with snow tires and icy roads that is rarely possible anyway).

+1 for this. I also have a JR kit on my car and I'm in the Chicago area. The JR kit uses a vacuum actuated bypass valve so at low load conditions, cold start included, there is no additional air from the compressor being delivered to the intake manifold.

I also contacted JR prior to purchasing the kit regarding low temperature operation and this was their response: "The Rotrex and its oiling system were developed and are made in Denmark, where they see temperatures much colder. It is fine to work in 10-20F temperatures."

Pretty sure you can tune that off. Don't the OFT tablets offer a tune without this for cars with loud exhausts?

I think a tuner could do this in minutes.