Turbo performance?

[onearmedbandit]

Yup when someone complains that the car they are looking at hasn't got a turbo timer, I ask them to name a turbo car that has one fitted from factory. I don't know if there actually is or not, but if there is I've yet to met someone on the yard who can name one.

[ducatilover]

Yup when someone complains that the car they are looking at hasn't got a turbo timer, I ask them to name a turbo car that has one fitted from factory. I don't know if there actually is or not, but if there is I've yet to met someone on the yard who can name one.

Was an option on the S13 and some Toyotas, the SW20 had dealer installed ones, not sure about factory fitments. Do I get a cookie?

[onearmedbandit]

Was an option on the S13 and some Toyotas, the SW20 had dealer installed ones, not sure about factory fitments. Do I get a cookie?

Driven a few SW20's and none of them have had them. I don't think the turbo ones were sold NZ New, and the Japanese ones I've driven didn't have them. Maybe still just an option?

[ducatilover]

Driven a few SW20's and none of them have had them. I don't think the turbo ones were sold NZ New, and the Japanese ones I've driven didn't have them. Maybe still just an option?

Was a dealer fitted option. So I'm not sure if you'd consider it factory or not?
I've been in a revision 5 SW20 GTS with a dealer fitted turbo timer. Not NZ new though.

They're the only two examples I can think of and neither were a standard option and are very rare. Probably because there's no need for a turbo timer

[onearmedbandit]

Probably because there's no need for a turbo timer

Exactly!!!!

[ducatilover]

Exactly!!!!

I've heard some ridiculous arguments about the need for them...
One being cooling the oil to the shaft. Bullshit.
Slows the turbo down and cools. Bullshit.

Have yet to hear someone come up with a good excuse other than wank factor

[2Seat_Terror]

It was pointed out to me once that they may in fact be dangerous, if you had a serious accident and turning off the key didn't stop the engine from running (or pumping fuel into the hot part of the wreck?).

[ducatilover]

It was pointed out to me once that they may in fact be dangerous, if you had a serious accident and turning off the key didn't stop the engine from running (or pumping fuel into the hot part of the wreck?).

Could be a bit of a problem couldn't it?

[Fast Eddie]

I thought the theory of the turbo timer was mainly to give the engine oil time to circulate and cool down a little bit if you had just been driving vigorously and the oil was very hot and then turned engine straight off. So that there wasn't some sort of carbon deposits or something happening to the oil in the hot turbo or something building up in the turbo? doesn't really make much sense though since the oil is only really going to start cooling down after the engine is stopped anyway?

meh.. there was no turbo timer fitted to my turbo bike anyway..

[Woodman]

The theory of a turbo timer is that when the engine stops so does the oil pump therefore not pumping oil to the turbine bearings which because the turbine is not mechanically connected to anything can still be spinning.

[jonbuoy]

used to work with a guy that had detonation problems in his turbo rally car so he set up a crude water injection system using a winow washer pump some hose and a button under the accelerator pedal so when he put his foot to the floor it pushed the button and squirted water into the inlet stream via the washer pump.. Worked a treat.

Neat methanol based windscreen washer fluid works even better than water you can buy kits online. RE Turbo timers - I thought it was mainly to protect the turbo bearings - pull off the road straight away and switch the engine off and the turbo will still be spinning faster than an engine that has been idling, as soon as the engine stops you loose oil pressure and the turbo bearings loose their supply of fresh oil. Pretty sure in the last turbo car owners manual I read it said if you stop straight after a motorway run let the engine idle for a few moments until the turbo has slowed down a little.

2. After highway driving or high-load driving, Subaru recommends allowing the engine to cool by idling for at least 30 seconds before shutting off.

[dangerous]

Wow some people really need to read up on how turbos work.

yeah aye, im trying to bite my tounge but but... ohhh shit

100,000rpm is nothing for a turbocharger, the small-ish turbo's that sit on V6 Mitsi motors can go past 250,000rpm!

Like my CX500 17psi and 250,000rpm early lasers etc were a massive 7psi try 150psi http://www.youtube.com/watch?v=XAIHPzuqSc4&feature=fvsr

Screw using the turbo to blow air into the engine, use those revs to power the drive shaft haha Near no torque but imagine the hp

HUH... turbos use wast energy to produce power.

I was gutted when I found out my XN85 didn't have one.

It did, does, LOL but I ducted the wast back into the exhaust... I just figgered a aging oll boy with his fingerless gloves, tassels, potty hat with a externally vented pull off (love that term) valve just wouldent seem right.


Ohh and timers, well yeah maybe with the 1st of the turbos due to the material used as seals, now days ceramics and all that, na anyways by the time ya pull up the drive stick er in neutral enough cooler oil has passed through.

[Mooch]

It was pointed out to me once that they may in fact be dangerous, if you had a serious accident and turning off the key didn't stop the engine from running (or pumping fuel into the hot part of the wreck?).

In an accident most fuel injected cars have an inertia switch that switches off the fuel pump. If anyone has been dumb enough to bypass it then they should be in the darwin awards list.

[scumdog]

It was pointed out to me once that they may in fact be dangerous, if you had a serious accident and turning off the key didn't stop the engine from running (or pumping fuel into the hot part of the wreck?).

Meh, a naturally aspirated V8 will do that easily if it's still fitted with the factory mechanical fuel pump.

I've been standing there at the gas station, keys in my hand and the motor still running...

Too high an idle speed is enough to get that going.

[SMOKEU]

It was pointed out to me once that they may in fact be dangerous, if you had a serious accident and turning off the key didn't stop the engine from running (or pumping fuel into the hot part of the wreck?).

I've owned a car with a turbo timer and all I had to do to bypass it was put the handbrake up and down and the engine would shut off immediately.