Diesel gurus, 5.9l 12v Cummins

[theleo]

Sweet.  Intercoolers are big $.  Hit up wrecking yards.  A 6.0 ford is a good big one, I used to have one but sold it.  The Killer dowel pin, 3200k rpm mod and fuel screw and exhaust would be my list. A BAF big ass air filter from NAPA 6637 is perfect.  If you did these mods I think you would be 500+torque and close to 300hp.  HUGE improvement.  $1000 would more than do it minus intercooler that's a variable.

It'll be a process. Exhausts look like they're around $350 then there's putting it on... Air filter/cold air intake about the same. I'll start there then abduct it again for an intercooler at some point. Now the researching of exhaust systems...

[KFhunter]

You're not going to get 300hp without adding fuel 

BHAF (big honking air filter) (NAPA 6637) has been proven debunked, it doesn't add the claimed power just takes up a ton of room and makes more noise.  You don't need to add much in the way of air until you add fuel, but adding RPM via a governor spring kit you should add increased air flow.   

Adding a governor spring kit will keep the engine adding fuel longer through the revs but won't increase the overall available fuel, it just won't retard fuel until well past 3000rpm - usually about 33-3500 RPM before it retards fuel which is a big huge improvement over having your fuel retard at 1800 rpm or whatever it is, been awhile since I've driven a stock 12v.  That will make the truck feel like it has longer legs, but really you'll just be revving harder.   I wouldn't recommend rolling down the interstate 80MPH at a high RPM for hours on end.

[theleo]

You're not going to get 300hp without adding fuel 

BHAF (big honking air filter) (NAPA 6637) has been proven debunked, it doesn't add the claimed power just takes up a ton of room and makes more noise.  You don't need to add much in the way of air until you add fuel, but adding RPM via a governor spring kit you should add increased air flow.   

Adding a governor spring kit will keep the engine adding fuel longer through the revs but won't increase the overall available fuel, it just won't retard fuel until well past 3000rpm - usually about 33-3500 RPM before it retards fuel which is a big huge improvement over having your fuel retard at 1800 rpm or whatever it is, been awhile since I've driven a stock 12v.  That will make the truck feel like it has longer legs, but really you'll just be revving harder.   I wouldn't recommend rolling down the interstate 80MPH at a high RPM for hours on end.

So you're saying a different exhaust and air intake (stock filter, K&N filter, or complete cold air intake) has no benefit at all?

[baker5150]

You're not going to get 300hp without adding fuel 

BHAF (big honking air filter) (NAPA 6637) has been proven debunked, it doesn't add the claimed power just takes up a ton of room and makes more noise.  You don't need to add much in the way of air until you add fuel, but adding RPM via a governor spring kit you should add increased air flow.   

Adding a governor spring kit will keep the engine adding fuel longer through the revs but won't increase the overall available fuel, it just won't retard fuel until well past 3000rpm - usually about 33-3500 RPM before it retards fuel which is a big huge improvement over having your fuel retard at 1800 rpm or whatever it is, been awhile since I've driven a stock 12v.  That will make the truck feel like it has longer legs, but really you'll just be revving harder.   I wouldn't recommend rolling down the interstate 80MPH at a high RPM for hours on end.

So you're saying a different exhaust and air intake (stock filter, K&N filter, or complete cold air intake) has no benefit at all?

A lot of guys have seen little to no benefit adding an aftermarket air filter on a stock+ turbo diesel.  Most of the factory units flow plenty of air.

Don't use a K&N air filter on a Turbo Diesel, you'll get lots of opinions both ways on this, but I personally won't take the risk of dusting my motor.

[KFhunter]

 


The stuff you're mentioning doing (intercooler, exhaust, air filter) are all things you'll need to do if you plan to increase the power, but to see a significant increase power gain you'll need to add fuel.  It's a balance ratio.   

BEFORE YOU ADD FUEL make sure you have gauges, even mild 50 hp injector sticks will send your exhaust temp (EGT) to the moon and can damage your engine, manifold and melt down your turbo.

Actually I'd add full gauges before I did much of anything.

[Special T]

The stuff you're mentioning doing (intercooler, exhaust, air filter) are all things you'll need to do if you plan to increase the power, but to see a significant increase power gain you'll need to add fuel.  It's a balance ratio.   

BEFORE YOU ADD FUEL make sure you have gauges, even mild 50 hp injector sticks will send your exhaust temp (EGT) to the moon and can damage your engine, manifold and melt down your turbo.

Actually I'd add full gauges before I did much of anything.

This is wise especially since it has an auto transmission.

I think you will have plenty of flow with a stock air cleaner just change on a regular basis. Bigger exhaust helps pull heat away making everything last longer and adding flow.
1 exhaust 2 temp tower ( auto trans& exhaust )3govenor spring, 4 intercooler

That would be my order of investment.

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[Mudman]

Wow.  Big air filter last longer.  Filters better.  Plenty or air if needed.  Way cheaper then fancy kits, so ya its a great mod.  Stock exhaust is crap and does improve things.  $300 kit easy to bolt on.  KF did you read my truck trend link I posted for him?  You need to.  Baker your claims refer to newer trucks and is correct but not true on older diesels.  I forgot gauges which are VERY important-EGT mostly!

[Special T]

Bah humbug.  Good quality cooling turbo n intake (off a 98 dodge maybe).  The old 12v fuel spring mod pin and exhaust air filter.  Good to go. 225-275hp and 500tq.  Gauges. Will run till truck falls apart and still use crap old oil for fuel if ya like.  Check the killer dowel pin also.  Read this.  1500$                                                                         http://www.trucktrend.com/how-to/engine/1001dp-1989-to-1993-dodge-ram-power-recipes/but you can do it cheaper.

Couldn't access this article. Dunno

While I'm not opposed to a bigger filter my experience has been that common parts are important because they can be had anywhere anytime.

This is no substitute for being able to walk into any parts shop and pick up an air/fuel filter.  That said if that part number for the big air cleaner is a common one for semi trucks it may be a win win.  I personally just use stock and change more often. 2c

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[KFhunter]

I think you will have plenty of flow with a stock air cleaner just change on a regular basis. Bigger exhaust helps pull heat away making everything last longer and adding flow.
1 exhaust 2 temp tower ( auto trans& exhaust )3govenor spring, 4 intercooler

That would be my order of investment.

Nothing wrong with that order of investment, might be fun to put gauges on it before you do anything else just to see what the baseline is while bone stock. Then any improvements you'll see some changes in what the gauges read. 

Also, a transmission temp gauge will help you determine the health of the transmission.  Anything over 220 and the longevity is decreased, not linier but compounded. 200 is too much for me, I've had a lot of transmission failure before I gauged it and put in an aftermarket cooler with a fan.  I was pulling hay and campers up steep mountain roads, transmission slip will show up on the gauges as heat pretty quickly.

I would love a G56 swap.

[Mudman]

Sorry guys my link died.?  Yes Gauges are the most important and auto trans suck until pro built.  I had outstanding results with bhaf on my Ford.  Aftermarket fuel filter is very important as well.  Cheap to do yourself, $60 at napa.

[Special T]

I have a 2 stage fuel filter on mine stock then 2 micron for my 03 common rail.
Filtering fuel is always good, but exponentially more important on a common rail system.

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[KFhunter]

Wow.  Big air filter last longer.  Filters better.  Plenty or air if needed.  Way cheaper then fancy kits, so ya its a great mod.  Stock exhaust is crap and does improve things.  $300 kit easy to bolt on.  KF did you read my truck trend link I posted for him?  You need to.  Baker your claims refer to newer trucks and is correct but not true on older diesels.  I forgot gauges which are VERY important-EGT mostly!

I'm talking to the OP, and tailoring my responses to him.  I don't get the impression that he's going to cobble up a crude at best mounting system for that massive air filter.  I don't think he's going to go to the plumbing dept at lowes, break out the sawsall and install that thing.  What you do on the farm is your business, and if you like the turbo whine then more power to you    (if you do like turbo whine take out the silencer ring)

It just doesn't fit with the vibes I'm getting from theleo

[Special T]

Every vehicle forum I've been to has a list of tips and tricks that don't break the bank. Most of which are fully debated.
Everything I get from theleo is  budget build/Most bang for the buck type stuff.

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[Special T]

I would also add that I keep a spare air and fuel filter in my truck. You never know when you are gona suck up a bunch of dust or get a bunch of garbage in your fuel.

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[Mudman]

Wow.  Big air filter last longer.  Filters better.  Plenty or air if needed.  Way cheaper then fancy kits, so ya its a great mod.  Stock exhaust is crap and does improve things.  $300 kit easy to bolt on.  KF did you read my truck trend link I posted for him?  You need to.  Baker your claims refer to newer trucks and is correct but not true on older diesels.  I forgot gauges which are VERY important-EGT mostly!

I'm talking to the OP, and tailoring my responses to him.  I don't get the impression that he's going to cobble up a crude at best mounting system for that massive air filter.  I don't think he's going to go to the plumbing dept at lowes, break out the sawsall and install that thing.  What you do on the farm is your business, and if you like the turbo whine then more power to you    (if you do like turbo whine take out the silencer ring)

It just doesn't fit with the vibes I'm getting from theleo

A fool and his $ part ways.  Wonder which way you lean then?  You obviously think your a diesel genius but trust me your not.  Oh, silencer ring doesn't do squat so your wrong again.  If you like I can post pics of my presumed backwards "Farm sawzall" projects you assume I speak of?  Assume- to make an ASS out of U and ME!  I don't take your presumptious rude comment lightly and its not appreciated so heres your sign Oh that's from my Farm Buddy Jeff Foxworthy and Rodney.  Man this is fun. http://www.trucktrend.com/features/1002dp-1994-to-1998-dodge-ram-power-recipes/