Is it 'hard' on turbos if you do alot of highway driving? I know you are not in the boost (unless passing) but your EGTs are up. Is that hard on the turbo long term?

Is a life in the city easier on the turbo since you're only pushing the EGTs 30% of the time when pulling away from lights?

Joe

 

i like to know too.
BUMP

 

I wouldn't be worried about how hard the driving you do is on the turbo, rather on how hard the turbo is on the motor. but the b-series are pretty stout. no worries.

Tom

 

but we're talking about the lifetime of the turbo and how it's affected by the continuous heat of highway driving.

 

As long as you keep fresh oil in the motor, it is unaffected.

 

cant u just get a EBC and lower the boost down??

 

Recommended for longer turbo life:

boost for prolonged periods of time is a bad idea, it can and will damage the turbines. A turbo in boost gets hotter than hell.

Stay in boost for 5 to 10 seconds at a time

Especially watch prolonged boost up grades

Watch your boost gauge, if you're in boost for longer than above shift into fourth to get back into negative vacuum.

 

I think because you know me might have answered you question. If there is anybody that spends his life on the road, its me.

art

 

Well that's difficult when you're 1/4 mile time is over 14 seconds!

 

Dude, that is so not true. Factory turbos spend most of their life in boost. Yes turbos do get get hot when in boost.. but that doesn't mean it is damaging. Doesn't your exhaust get hot? That doesn't mean it's bad for the car. You guys would be suprised at how long turbos last.. provided u keep maintaining them properly. Ways to prolong a turbos life is:

1.) Turbo Timer
2.) Frequent Oil Changes
3.) Low-Mid pressure oil in feed line (high pressures can damage seals..)
4.) Unclogged, well installed oil return line.

 

Well said Rob92SC. I agree with your thoughts about how to prolong turbo life.
Have a beer on me!

 

1.) Turbo Timer
2.) Frequent Oil Changes
3.) Low-Mid pressure oil in feed line (high pressures can damage seals..)
4.) Unclogged, well installed oil return line.

Thats all great, AND stay out of PROLONGED boost...like going up an incline thats five miles long boosting mindlessly the whole way, etc...

...and by the way, please explain #3 more, how can that be adjusted, how do you get a reading on it, and what the "correct" pressure to have on the feed line??



[Modified by greyzone, 11:28 PM 11/9/2001]

 

Ok, I have an Si and the gearing is short meaning that on the freeway my revs are high. When I'm driving at 70 mph my rpms are at around 4 grand. So say I'm on the freeway crusing to a destination at 70 mph, will this hurt my turbo? Keep in mind that when I'm doing this 70 mph I'm only tapping the gas every few seconds to maintain speed.

 

u should use cruise control

 

You can drive forever at 4000RPM cruising at 70mph because you will not be boosting. 4000RPM is very different at part throttle than wide open throttle. The turbo only cares about how much exhaust air is rushing through its turbine.

When someone says that "full boost comes at 4000RPM", he means that he reaches his max boost pressure at 4000RPM with the throttle wide open.

 

Thanks mercury, that's what i thought. Well guys, my install starts in the morning, wish me luck, and I'll try not to make 50 post like nyb16 did. J/k tim

 

Good luck, I too will be installing my own turbo...whenever it gets here that is.


[Modified by FBP Si 2000, 2:56 AM 11/10/2001]

 

Get an oil cooler. Your oil and engine temp will drop down enough to keep your turbo in a safe temperature range.

 

Well hopefully with the turbo it'll be under 13 seconds..

 

Your hoping for a lot thinking slapping a turbo on will net you 12's right away.

 

Turbo only generally nets about 150whp...thats far from 12s...more like mid 14s and 15s


[Modified by greyzone, 8:40 AM 11/10/2001]