custom cut fuel pin

[sparks57]

If they give me one, I'd do it!



Hey Pastor, you think PDR would want to loan out a pin for comparison's sake for a week or so?

 

[Excessive Force]

Well... ... . How about it CB???

 

[sparks57]

If someone gives me a PDR pin to test out, I'd do it.

 

[BushWakr - RIP]

Well, I REALLY try to stay out of these debates for all the obvious and some not so obvious reasons... .



Mike and I exchanged a couple emails and posts "back in the day".

He then undertook to configure a cone based on his needs... .

On the other side of the coin 99. 9% of the rest of the guys, went about tweaking their own "stock" cone.

Some worked better than others, some worked well in the upper end, some the lower end.



Lets just look at imperical data.....

The protrusion of the guide pin determins the fueling lever per pound of boost. Once that pin is fully extended it is allowing all of the fuel that the internal controls will permit... that's it, no more...



Now, if you alter other components, you can change that final value, but in doing so, you are NOT altering the pin's max travel.

Again, you can alter internals but this is not the same as comparing any number of custom or altered cones with every thing else held in a "steady state".



Mike spent time and money working and reworking his cone and he is entitled to market his hard work. Right now, Mike and Brian are the two fellow's who are at the front end of VE HP... keep in mind that the trucks are very quickly changing from a "dad's daily driver" into a fairly modified unit...

Most of us are half way there (significantly altered. . the truck/engine I mean) ourselves...



The final issue becomes, in the end analysis, the relationship between the cone specs and the factoring in of other, internal parts that can or may be altered... in that situation, the cone, its shape, ramp rate and so forth will affect the final performance. .



If we compare a stable platform (unaltered between runs) using the two products, I'd bet that they would be almost indestinguishable on the dyno...

The only area of variance I'd expect would be the onset of fueling which would change the HP curve I believe, but provide almost indentical end values... .



Last item, I promise... . the cone "grind" or contour, start of grind/depth of grind in the early stages of inceasing ramp rate will alter the smoke/EGT's noticably. If the cone is designed to hold of on accelerated ramp rate a bit longer, it will provide the turbo the chance to spool up, and get a bit of a head start on heat and smoke issues... now if you alter the turbo and or it's exhaust housing, alter boost values and many more items the cones' shape is important... but it still allows only a certain amount of increase.

My personal cone as it sits right now is on the factory lean position. I see roughly 43'ish pounds of boost with that setting... ferget EGT's..... if I rotate the cone to my "custom set" I see about 50psi of boost and again,... ferget EGT's it's just plain ugly... .

Ok, that's my personal thoughts on this one.....

How 'bout this CB, take your stock cone that isn't being used now, and alter it... Mike or almost anyone else will help you with that... . heck you could probably make a good first attempt on your own... . then report back... . we trust ya on the results...



Pastor bob...

 

[dpuckett]

Dangit, Bob. I was gonna have him ship me his stock pin to do some tinkering on. I have a few ideas... ... . THank God the smoke will never burn anything around here; have to change my habits when I return west and to drier country...



Daniel

 

[BushWakr - RIP]

Ahhhhhh crap Daniel... sorry... what was I thinking...



PB.

 

[Excessive Force]

Pastor Bob... ... So WISE... ...





Giving CB a little "project" to slow his post count ...

Thanks for the info.

 

[sparks57]

I've got a dremel and a stock pin. Peice o'cake.



But if you want it Daniel, PM me.



Strange thing is, I'm overtraveling Mike's pin with a pretty thick washer.