Truckers, lets see your rigs!

[SmokinCAT]

Originally Posted by Leiffi

Start from for example 900 rom and click start, then telk me the numbers. Not from 3000 rpm or what ever the engine is free revving.

You don’t click start 75% load from 900rpm, you have no clue.

[SmokinCAT]

Originally Posted by jfaulkner

I forgot Leiffi my manifold turbo (before I went to the larger compressor wheel) was OEM off a 700hp QSX Cummins. So if an HX60 was better why didn’t Cummins use a 60? Or is this another example of you knowing more than the designer? Or could it be the 60 isn’t large enough to support a sustained 700hp? Which brings me back to the “working” hp and not blips on a dyno.

Not even 700hp, the 755hp jumps to a 89mm compressor and G trim turbine.

[jfaulkner]

Originally Posted by SmokinCAT

Not even 700hp, the 755hp jumps to a 89mm compressor and G trim turbine.

Only because they didn’t consult with Leiffi first.

[BRE]

Originally Posted by Rig Wrench

What are similar combos and applications doin for mpgs?

I finally did a little asking around and apparently I’m doing pretty damn good.
However, when I got out here from West Texas through New Mexico, it drank fuel. Back down to 4.3 but there is some hard pulls on top of wind.


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[allan5oh]

Originally Posted by jfaulkner

Well you might want to tell Holset that because they rate the 4.1 hx82 to 1200hp. But I guess you know more than the designer/manufacturers. Oh and with all the talk of knowing how to tune can you even tune a radio station?

I thought it flowed up to 200 lbs/min? That's a lot more than 1200 hp. Or are we talking something different?

[SmokinCAT]

Originally Posted by allan5oh

I thought it flowed up to 200 lbs/min? That's a lot more than 1200 hp. Or are we talking something different?

Where did you come up with that make believe number, holset doesn’t offer compressor maps, so let’s take a modern comparison of a Garrett GT6041, the map stops at 185lbs/min, peak efficiency is around 150lbs/min.

Now let’s take test cell data from a 1136hp marine engine, at max load at max rpm it takes in 9041lbs/hr of air, that comes down to 150lbs/min.

Also, just because a turbo is rated for XX at peak performance doesn’t mean it can’t be used at lower HP ratings. Why does everyone want to run **** on kill all the one with turbos.

[allan5oh]

Originally Posted by SmokinCAT

Where did you come up with that make believe number, holset doesn’t offer compressor maps, so let’s take a modern comparison of a Garrett GT6041, the map stops at 185lbs/min, peak efficiency is around 150lbs/min.

I'm not actually sure TBH! I know there's a few different flavors, but I didn't say "it flows this much".

Now let’s take test cell data from a 1136hp marine engine, at max load at max rpm it takes in 9041lbs/hr of air, that comes down to 150lbs/min.

How much excess air is it moving at this point? Is it right on the edge?

Also, just because a turbo is rated for XX at peak performance doesn’t mean it can’t be used at lower HP ratings. Why does everyone want to run **** on kill all the one with turbos.

It all depends on the application I suppose? How is running on the right side of the map on occasion an issue?

Ruud Viser pushes a 72sxe to over 1100 HP in an application that's harder on the turbo than anyone on here does.

[SmokinCAT]

Originally Posted by allan5oh

I'm not actually sure TBH! I know there's a few different flavors, but I didn't say "it flows this much".



How much excess air is it moving at this point? Is it right on the edge?



It all depends on the application I suppose? How is running on the right side of the map on occasion an issue?

Ruud Viser pushes a 72sxe to over 1100 HP in an application that's harder on the turbo than anyone on here does.

Your point?

I don’t care how hard someone pushes something, my manifold charger hates its life every time I run my truck, it runs well but that does me absolutely fuk all if it explodes from being pushed too hard and takes out my engine, so why wouldn’t I want a more reliable setup?

[SmokinCAT]

Originally Posted by allan5oh

I'm not actually sure TBH! I know there's a few different flavors, but I didn't say "it flows this much".



How much excess air is it moving at this point? Is it right on the edge?



It all depends on the application I suppose? How is running on the right side of the map on occasion an issue?

Ruud Viser pushes a 72sxe to over 1100 HP in an application that's harder on the turbo than anyone on here does.

Most aren’t on the right side of the map, almost every setup out there is running close to the surge line, and either side kills efficiency of the compressor, but the left side makes more heat as you are finding out.

[SmokinCAT]

The chargers on the test engine I mean tuned are S400s on a split manifold setup, they run a whopping 36psi and yet still make 425* of heat at the turbo outlet, just the nature of stock BW compressors.

[allan5oh]

Originally Posted by SmokinCAT

Most aren’t on the right side of the map, almost every setup out there is running close to the surge line, and either side kills efficiency of the compressor, but the left side makes more heat as you are finding out.

Isn't that harder on the turbo?

I would think I would be running slightly to the right of the middle of the map on mine. Unless there's something wrong with my math.

[Rig Wrench]

Whats a s500 good for on an e-model. 1.65 housing I believe? Im havin trouble I.D.ing it. How workable as a single? (4:33 gear if it matters) or is it better of as a low pressure on some compounds or just scrap it?

[jfaulkner]

Originally Posted by Rig Wrench

Whats a s500 good for on an e-model. 1.65 housing I believe? Im havin trouble I.D.ing it. How workable as a single? (4:33 gear if it matters) or is it better of as a low pressure on some compounds or just scrap it?

Gotta know wheel sizes

[BRE]

Originally Posted by jfaulkner

Gotta know wheel sizes

24.5’s


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[SmokinCAT]

Originally Posted by Rig Wrench

Whats a s500 good for on an e-model. 1.65 housing I believe? Im havin trouble I.D.ing it. How workable as a single? (4:33 gear if it matters) or is it better of as a low pressure on some compounds or just scrap it?

Which one, 1.65 is standard housing on the 318883 that a lot of people used to go to, that one is a 86mm inducer.

[Rig Wrench]

Originally Posted by SmokinCAT

Which one, 1.65 is standard housing on the 318883 that a lot of people used to go to, that one is a 86mm inducer.

Not sure. It came from Antri.s a few years ago. Ill try and find a part number. I know its quite a bit bigger than normal. Says perkins on it and has an adapter on the exhaust housing to attatch to the exhaust pipe. About all I know

[jfaulkner]

Originally Posted by Rig Wrench

Not sure. It came from Antri.s a few years ago. Ill try and find a part number. I know its quite a bit bigger than normal. Says perkins on it and has an adapter on the exhaust housing to attatch to the exhaust pipe. About all I know

Well using Leiffi’s math that should support like 5,000hp and spool almost instantaneously. IF you can tune the engine correctly.

[Rig Wrench]

Originally Posted by jfaulkner

Well using Leiffi’s math that should support like 5,000hp and spool almost instantaneously. IF you can tune the engine correctly.

Well, if not Ill just stack a powerbox on a diesel freak harness with a turbo 3000 and it should be just about perfect

[jfaulkner]

Originally Posted by Rig Wrench

Well, if not Ill just stack a powerbox on a diesel freak harness with a turbo 3000 and it should be just about perfect

I can’t believe diesel freak is still around

[jfaulkner]

Originally Posted by BRE

24.5’s


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Never get fuel mileage with those.