The Airflow Bickering And Butt Hurt Thread. AKA Info's turbo motor.

[Infomaniac]

I can't believe I threw it away but I had a shroud built to weld around the oil pan. And just run water through. Basically a water jacketed oil pan.

Maybe a water jacketed oil return line would be the trick thing.

I do have a monster oil cooler but I don't think the oil will get to extreme temps during a drag race. Cove racing mayb.

[Bodean's Hammer]

we need to figure out some way of water cooling the return oil from the turbos, man we all could cut down major on oil temps if we could design some cheapass way of getting the turbo oil temp wayyyyy down before it hits the pan again.

Maybe a scaled down version of the Mercuiser oil cooler, possibly the pwer steering cooler as its quite a bit smaller. I dont know how hard it would be to plumb in with the turbo's setup, but you could put it inline with the water exiting the engine.

I really dont know shiat about turbos, just reading and thinking about it.

[IMPATIENT 1]

Maybe a scaled down version of the Mercuiser oil cooler, possibly the pwer steering cooler as its quite a bit smaller. I dont know how hard it would be to plumb in with the turbo's setup, but you could put it inline with the water exiting the engine.

I really dont know shiat about turbos, just reading and thinking about it.

it'd have to be something that didnt slow flow at all, you cant have pressure building up on the dumpside of the turbo or itll blow out the seals and make the turbo leak oil into the comp and turbine housing. dont know what you could use really, jus something ive pondered on lately cuz im at that point on mne that ive got make my oil drain hose, so its been bouncing round in my head bout cooling it prior to oilpan lol

[gn7]

[QUOTE=Hass828;1306771]Come on now Bob. Nobody ever said that efi wont run just as well.
QUOTE]

.
Funny thing is there is no comparison with the boost guage. 15psi with the old draw through deal wasnt making anywhere in the same ball park of the hp this new deal makes at 15psi. You'd think "boost is boost". Not true.
I'd bet there's 800hp difference.

Hey, I just here to learn like every one else. You guys write it. I suck it up and believe every word. Of course, I seriouly doubt Carson Brummett will buy into it.

[Unchained]

we need to figure out some way of water cooling the return oil from the turbos, man we all could cut down major on oil temps if we could design some cheapass way of getting the turbo oil temp wayyyyy down before it hits the pan again.

But this has not been a problem that needs fixing.
Are we bench racing ?

I read that the oil coming out of the drain line is all foamed up like dirty whip cream and the large diameter return line gives it time to settle out.
The oil flow is not much, mine have a restrictor built into the feed line fitting.

[71hallett]

How about I cut the flanges off and just turn them 45*?

Advise you may not want but going to pipe in anyways. If it where mine I would v-band one end of the charge pipe since the distance doesnt get shorter on the angle of the pipes in a blow out...just my useless .02 carry on.

[Hass828]

[QUOTE=gn7;1307045]

Come on now Bob. Nobody ever said that efi wont run just as well.
QUOTE]



Hey, I just here to learn like every one else. You guys write it. I suck it up and believe every word. Of course, I seriouly doubt Carson Brummett will buy into it.

Ask Mark if his deal picked up any hp at the exact same boost, exact same engine just larger turbos.And he just took a small step up in turbo size.

[gn7]

[QUOTE=Hass828;1307148]

Ask Mark if his deal picked up any hp at the exact same boost, exact same engine just larger turbos.And he just took a small step up in turbo size.

I am going to have to guess it came from the drop in exhaust pressure. Boost really is boost. The manifold and everything below it has no way of knowing how the boost got there. Let me ask you Hass. If I run 15 lbs with my roots, and take it off for a turbo with 15 lbs, and pick up 150-200hp, where did the power come from?

Hint: look outside of the manifold pressure. It remained the same. So the power came from somewhere else.

But you chopped up my post in your quote. I would love to see what Carson has to say about you making 800 hp more power at the same boost, over one of his draw thru deals. I am certain he would find that funny.

[Hass828]

[QUOTE=gn7;1307232]

I am going to have to guess it came from the drop in exhaust pressure. Boost really is boost. The manifold and everything below it has no way of knowing how the boost got there. Let me ask you Hass. If I run 15 lbs with my roots, and take it off for a turbo with 15 lbs, and pick up 150-200hp, where did the power come from?

Hint: look outside of the manifold pressure. It remained the same. So the power came from somewhere else.

But you chopped up my post in your quote. I would love to see what Carson has to say about you making 800 hp more power at the same boost, over one of his draw thru deals. I am certain he would find that funny.

He might not

[Hass828]

[QUOTE=gn7;1307232]

I am going to have to guess it came from the drop in exhaust pressure. Boost really is boost. The manifold and everything below it has no way of knowing how the boost got there. Let me ask you Hass. If I run 15 lbs with my roots, and take it off for a turbo with 15 lbs, and pick up 150-200hp, where did the power come from?

Hint: look outside of the manifold pressure. It remained the same. So the power came from somewhere else.

But you chopped up my post in your quote. I would love to see what Carson has to say about you making 800 hp more power at the same boost, over one of his draw thru deals. I am certain he would find that funny.

The gains come from the total package being more efficient, exh. & comp side both.

Boost isnt boost. If you run a turbo-blower whatever outside of it efficiency range it can very well make 25-30 on a boost guage but it has heated that air up till its not nearly as dense and the gain just isnt there compared to a larger more efficient turbo-blower that will make the boost without heating the charge up to much.

[gn7]

Yes, i will give you the heat thing as well. And if a turbo isn't good for anything else, it can heat some air. Probably has a little something to do with the exhaust and the intake being a 1/2 inch apart in the turbo.

[Infomaniac]

Boost is not boost when comparing roots to a turbo.

A turbo does not rob the crank of torque. The torque saved converted mathmatically into HP is a huge gain. Thus the advantage of a turbo's boost compared to a roots.

Now one turbo to another is hard to justify an enormous gain in power with the same boost. Unless they are at extremes of horrible effeciency compared to optimum effeciency.

[Unchained]

I am going to have to guess it came from the drop in exhaust pressure. .

That is the big gain from going to a larger turbo size.
A small turbine housing becomes the bottleneck where what you pump in the intake can't get out the exhaust and the backpressure goes up.
Makes me think of an inappropriate Barbie comment.

[Gearhead]

Boost might not be boost. Boost in the intake manifold versus boost in the cylinder? With large blower/turbo volume on an engine with small intake, head and cam, may not flow all the volume past the intake valve into the cylinder and thus build up pressure at the intake pressure tap. Conversely, big intake, big heads and big cam with lots of overlap may not build as much boost and blow the mixture volume right out the exhaust. There can be 100 hp in just getting the camshaft matched properly. Camshaft timing events can affect measured boost.

But that is old school. Most guys know how to match size everything better these days..............

Gear