Under the Hood Dress Up Thread

[Darkrider]

Yeah, thats a fine plan.

Won't get you to where I am but you can expect somewhere right around 200-210 hp.

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Thats one of my last runs from the past summer. It's an iphone app, but it works like a gtech. I've had it on a dyno and the numbers are close enough. The yellow is hp, the proggy doesn't calculate torque.

I'm also still running the gm8 and vac system......

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Nice, just enough of a boost to have some extra grunt but not so much that im risking reliability.

Sent from a 6.5 Detroit Diesel powered smartphone

 

[eric.s.t]

^ Sooooooooo Sexy! Wish mine would look like that as well!!

Also gunna sand down my inner wheel wells and my Battery Tray and spray some nice new Black Paint on them, and clean up the Intake manifold, as much of the block as i can, ect. cant wait to do it!

Thanks Man!!! Lots of work and money put in it!

Its beautiful

Thanks to you too! Lol

Look at you being all studly with not one, but two women in the room!

On another note, are any of you using anything besides the factory style accessory brackets? Lets be honest, they're ugly. Are there any good looking factory ones you can look for? Or are there even any aftermarket ones that aren't billet aluminum and aren't gonna break the bank?

And are you talking about the pulley brackets? If yes, my plane is to get the alluminum brackets powder coated either red or black. Possibly red, then get some billet alluminum pulleys and get those done in a black chrome style powder coating. Should turn out pretty nice i think. Or i will put black brackets, with just plain black pulleys, and try to find something to brake it up alittle bit, like have the properlar on the alternator red, or something to help it out

 

[great white]

Nice, just enough of a boost to have some extra grunt but not so much that im risking reliability.

Sent from a 6.5 Detroit Diesel powered smartphone

Im talking crank hp, not rwl.

Probably more like 180-185 rwhp.....Most stock 65 TD's put around 160-170 to the rollers depending on the truck (auto/standard, etc) and the dyno operator. Those guys can give you messed up numbers depending on how they set up the rig. Different types of dynos give different results also.

For example; my first pulls with the nrw setup were right around 200-210 hp. I was crushed for the amount of $ i had in it.

Tuning and refining saw it peak at the 271, then we backed it down to get back some mpg and driveability i was goving up for pure numbers....

 

[Darkrider]

Im talking crank hp, not rwl.

Probably more like 180-185 rwhp.....Most stock 65 TD put around 160-170 to the rollers depending on the truck (auto/standard, etc) and the dyno operator. Those guys can give you messed up numbers depending on how they set up the rig. Different types of dynos give different results also.....

Ahh ok, what would I be looking at torque wise?

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[great white]

Ahh ok, what would I be looking at torque wise?

Sent from a 6.5 Detroit Diesel powered smartphone

Dunno, its a pure guess but around 350-380.

You can work the math both ways yo establish the target you want: HP = Torque x RPM ÷ 5252

Basically, a 65 is pretty much all in around 2500. Theres some more above 2500, but it's not all that practicle or cost effecient chasing it. 3 grand is where the average joe will want to stop pushing it for sure. 3400 is for noise, pulling way more (or faster) than the truck should or drag racing (in a 65? Yeesh) it.

Depending on what you're planning for a holset, you may be able to go 3000 before you start to egt out on a hard pull.

I started with the rpm range i wanted to peak (determined by the limitations in the parts choices) then chased the highest tq iIcould achieve. Fuel rates, timing, boost, when the turbo comes on and runs out, etc. i was a fune day at the shop on the duno. We all had a great time working on something they usually don't get a chance to.

The hp is just a function of the above equation.

 

[great white]

HP = Torque x RPM / 5252

Just in case the formula was messed up by the hypercoding.

Doesn't come through as a "divided by" symbol on my iphone...

Interesting bit of trivia:

If hp and torque don't cross at 5252 rpm, you've made a math error.

It's a constant of the equation....

 

[Darkrider]

Def some great info there, I think I will start a thread on it when I get back to my comp and see if I can get a mod to move these posts to it.

Sent from a 6.5 Detroit Diesel powered smartphone

 

[great white]

Def some great info there, I think I will start a thread on it when I get back to my comp and see if I can get a mod to move these posts to it.

Sent from a 6.5 Detroit Diesel powered smartphone

I'd have no issues with that.

 

[96-1500]

Nah, I'll pass on that one friend.

I'd rather have an lb7 or an lbz in there and be able ro ditch the pad altogether. Just enough to know ot's not a gasser, but civilized just enough to slip on by unnoticed 95% percent of the time.

And; you don't have to shut the damned thing off at the tim hortons drive through so the girl can hear your order....

I really like my diesel and wouldn't switch back to gas (can't with the 35 foot trailer!). But I would switch up to a newer one in a (pardon the pun) heartbeat. Even with the increased cost of repair parts I'd still switch up.

80's/90's tech gets so tiresome sometimes....simple to work on but so limiting....

My 65 is about as "hot" as you can get it without sacrificing reliability and I'm just barely scratching stock 2001 lb7 territory with 271 and 440 ish rear wheel. Throw a mail order generic box tune at an lb7 and a 65 is left in some serious dust. If i had the money into an lb7 that i have in my 65, i'd be knocking on 700-800 rwhp. Maybe more.

"If I knew then what I know now"....

When the 65 calves (hopefully not for another ten years or so seeing what I've got into it), an lb7 is going in there.

No doubt "aboot" it.

Interesting points b'y. I've gotta admit though you had me really confused when referring to your 65 for a minute. I'm thinking "why is he comparing a 65 Vette or Chevelle or something to a newer diesel?" Then my brain started working again (I hadn't had my coffee yet) and I put the "dot" in 6.5

I just like the old 6.5s for mileage, mainly. And that's exactly why they were designed. I don't know many Duramax's that will get better mileage than a 6.5. I'm sure they're out there, but I don't know of any personally. Outperform in every other way possible though. No question.

 

[Darkrider]

I'd have no issues with that.

Thread created and i wound up cutting and pasting the entire conversation into one post in it.

Heres the link

http://www.gmt400.com/forum/showthr...iesel-Performance-toolbox&p=410490#post410490

Feel free to add any additional info i may have missed.