Any guesses?

[sparks57]

On what power I will be at?



With:

Ported intake horn and exhaust manifold

HX35/40 hybrid turbo (balanced and ported)

Big POD-like EDM injectors

Con O clutch

Open intake

Open exhaust

3200RPM GS

Old Smoky fuel pin



The turbo is already in, the intake is already done, and so is the exhaust... the fuel pin, governer spring, and injectors should be in sometime in february (probably the weekend of the 14th)... the clutch should be in around march or april.



What kind of power (ballpark of course) do you think I will be able to achieve?

 

[sparks57]

I think once that stuff is done... I'll work towards an NV4500 conversion, and a limited slip.



Does that sound like good logic?

 

[BushWakr - RIP]

:-laf :-laf... . you're not gonna have choice about the transmission change... ... :-laf :-laf...



Bob.

 

[sparks57]

You mean: "[no] choice"?



I got one lined up in good condition for cheap, so it should be in sometime before this summer.

 

[Excessive Force]

OLD SMOKY PIN

CB,Where did you get the pin,and how much?What gains are expected from using it?

 

[bflood]

I see nobody is answering the question. I'll take a stab at it. Say . . . . . better than 300rwhp . . . but less than 800

 

[sparks57]

Wow, bflood! I'm amazed by your near psychic accuracy!



As for the fuel pin, it is an Old Smoky fuel pin. You can expect at least 50rwhp from it depending on fuel settings. I forget exactly how much it costs...



Drop him a pm if you're interested, he is a member here.

 

[paccool]

300 - 350, depends on how much you crank on the fuel screw and adjust the timing. You could go even higher if you REALLY crank the pump up. If I remember right, Mike (Ol Smokey)was at 441 at Piers last Sept.

 

[sparks57]

Yeah, Mike is one heck of a guy. My gut says that with all these airflow increases, I should be able to hit 350 without burning up my engine.



We'll have to see.



I'll have to talk to the pastor... but what about a contest? Maybe 10 bonus rwhp to the closest guess???

 

[sparks57]

Ok, so I figure that an NV4500 conversion, a limited slip, a cam, and a ATS manifold should be next.



Does that sound good?

 

[glhs]

Chris,

How many lbs. of boost are you making now?

What is involved in porting the intake? Is there a lot to do or just a couple of bad areas?

Kurt

 

[HonkinDiesel]

I slapped a Power-lok onto my Dana rearend a few years back now. Best upgrade I ever did so far. I used have a lot of one wheel spin on take off and I got stuck a couple times off road. But with the LSD I have'nt looked back. .



I have been slowly working on the power train to get into bullet proof shape. The only weak link I can see is the ol'Getrash. I had it rebuilt once and is starting to show the signs again!



I have been seriously considering going for the NV5600

From what I hear not too many of those folding up! So far, I have been holding off until I can scrape a few big bucks together.



I do a lot of back country driving and I need a reliable drive train. You wouldn't believe how many 4by's I have yanked out of the bush with my 2 wheeler. It's not just how much you got, it's how you use it that counts, I say Oo. (I thinks I just opened up a can of worms here! Oh well it's fishin' season ain't it. )

 

[sparks57]

Originally posted by glhs

Chris,

How many lbs. of boost are you making now?

What is involved in porting the intake? Is there a lot to do or just a couple of bad areas?

Kurt

24 psi right now. Porting the intake horn isn't too bad. I'm having Dave Miller port my entire engine. I could do it, but he could do it way better.



I'm hoping that the 1psi=10hp like what most people say with the 16cm housing... because that would mean I'm running 240hp right now, (duh).

 

[Excessive Force]

1 HP = 10 HP........

CB, What HP am i reaching when my boost gauge reads 41#. Using that formula i would be at 410 HP... ... I doubt it. I'm still running the stock turbo & housing.

 

[sparks57]

No, you have probably an 18cm or 21cm housing, so it's different.

 

[glhs]

Excessive Force

I believe that figure is for flywheel hp. Subtract approx. 15% for rear wheel hp. If I'm way off on this I hope someone chimes in.

Kurt

 

[sparks57]

It's rough... nowhere near a scientific formula. I think it actually is rwhp, but I could be wrong.

 

[dpuckett]

From my observations, the 1psi=10HP rule applies to intercooled engines only. I can make 40+ psi, but dont think I am anywhere near 300, even, much less 400 hp. Now, with a 18cm housing, the 1psi=10hp rule is ROUGHLY RWHP. Same for a 16. GEt down to a 12, and it is closer to engine HP than RWHP. Of course, a lot depends on how fast your fuel comes on, how hot you get (1300 deg at *x* psi will be more power than 900deg at same psi), etc, will also play into how much power you are making. A big difference is transmissions- manuals are good for 10-15% parasitic loss; autos up to 35%. I'd say with your hybrid turbo, and moderate fuelling increases, you should be at about 225-230 RWHP. Are you running a 16 or 18 cm housing? Seems like I remember you mentioning having a 16 on the new turbo. Cam, now, too? in addition to all the other stuff? WOW. I'm still jealous, man. Dont forget to port the head, too, to improve airflow in and out. These old style engines arent known for real good flow in stock form.



I'd say with a cam, head ported to within an inch of its life, POD-flowing EDMs, fuel pin, ATS manifold, and the hybrid turbo, and 1. 5 turns of the fuel screw from stock, and you'll top 375 RWHP. Dont forget the clutch, and go easy on the NV4500. I'd go for a 5600, since you have a 4x4.



Daniel