Competition Work vs Street Stock

[Big MAK]

Same class except work stock doesn't require driveshaft u-joint shielding? I guess I don't see the point in having a WS class except to make things less safe...



Seems to me it needs more restrictions to keep the HP in that class down or everyone in SS may as well run WS?



Actually... can't you run higher HP in WS? There's no turbocharger intake limit.

 

[smokinrod]

Turbocharger:

The turbocharger is limited to a stock-appearing, OEM make-specific charger only. Turbochargersfrom different years in the same make may be interchanged.



so does that mean that if it is made by holeset and still looks like a 35 (or overgrown 35 ) it is legal ??? I know the Ford guys are claiming the Garrett GTP38R is fair game in this class



Fuel Injection Pump:

The fuel injection pump is limited to a stock-appearing, OEM engine model-specific pump only.

Pumps from different years in the same engine model may be interchanged.



This could also be bad since I hear that there are many people planning on running Floor it pumps .

 

[smokinrod]

I think this is going to be a very interesting class , just think a stage III floor it pump with big injectors and a wastegated hopped up stock turbo . sounds like a nice DMax setup.

 

[Big MAK]

The way the rules read WS has less restrictions then SS -- so may as well run WS. I hope someone clears this up; sending a note to DHRA since this really doesn't make any sense.

 

[Tcolesanti]

Work Stock-You have to have a stock turbocharger.



Street class- You have a 2. 8" inducer limit.



These are two totally different beasts.

 

[Big MAK]

Work Stock-You have to have a stock turbocharger.



Street class- You have a 2. 8" inducer limit.



These are two totally different beasts.

I don't think that's what it says.



Work Stock -->

Turbocharger:

The turbocharger is limited to a stock-appearing,OEM make-specific charger only. Turbochargers from different years in the same make may be interchanged.



'stock appearing' doesn't say anything at all imo; and OEM make-specific means (on a Cummins) any Holset turbo up to HX60.



That seems to leave a wider range of choices for WS then it does for SS.



It would seem that should read "stock" not "stock-appearing". Looking like stock and actually being stock is not the same thing at all.

 

[smokinrod]

Turbocharger:

The turbocharger is limited to a stock-appearing, OEM make-specific charger only. Turbochargers from different years in the same make may be interchanged.









I cut and copied this from the DHRA web site rule book.



OEM make : does this mean any HX model they all are the same make???

 

[smokinrod]

Now see Big MaK, we are being very bad . we are reading between the lines ,and that is something that only winners do. you know the saying... ...



HE WHO CHEATS THE BEST ALLWAYS WINS

 

[Tcolesanti]

You guys show up to tech at IRP hanging an HX60 off the side of that engine. Your not going to be running in the Work Stock class, that's for sure.

 

[Big MAK]

Either make WS a "Stock Turbo" (period) or place some boundaries on it like SS has! Same goes for fuel pumps



Alternatively; eliminate SS class. There's no point in having it.

 

[Big MAK]

You guys show up to tech at IRP hanging an HX60 off the side of that engine. Your not going to be running in the Work Stock class, that's for sure.

I'm glad to hear it. Why not say so in the rules? An inducer size limit? Fuel mod limit? If it isn' tlimited to "Stock" it needs to have some parameters like SS has.

 

[Tcolesanti]

How would you tech fuel enhancement limits?

 

[Amish Elegance]

Turbocharger:

The turbocharger is limited to a stock-appearing, OEM make-specific charger only. Turbochargers from different years in the same make may be interchanged.





Cummins never hung a HX 60 off a 5. 9 Dodge. OEM meaning Dodge, Ford, Chevy. Not OEM Holset, Garrett, Ect. Stick to the 35 housings, you'll be fine.



As to the Ford guys claiming that the Garrett GTP38R is ok, no chance. The intake is 4" on that one. No std Ford turbo close to that. They'll be luggin the sled with the street boys. :-laf





For the Record:

SS = Super Street

SD = Street Diesel

 

[smokinrod]

i WAS JUST WONDERING , i AM NOT RUNNING THAT CLASS ANYWAYS.

 

[Sled Puller]

I'm glad to hear it. Why not say so in the rules? .

"OEM Make Specific" is standard terms meaning Dodge Ford Chevy(Toyota in near future?), a part that came factory on a 1 ton or smaller pick-up truck, no swapping between brands.



If something just says "OEM" (in our rule book) with out make specific attached, it means you can swap between brands, ie: Cummins into a Ford.



We are not going to list all the stock "TURBO makes" that came on each vehicle.



I know a rulebook isn't the most pleasant thing to read thoroughly, but it is something that needs to be studied carefully.

The DHRA rulebook has been tweaked for several years, by DHRA staff, SFI, the pullers themselves, as well as veterans of other venues of pulling.



The classes make sense from what has been pulling with us in the past.



And don't forget:



WS- Work Stock (Notice it does not say, factory stock, bone stock, or showroom stock. )

SD- Street Diesel

SS- Super Street

MD- Modified Diesel



Each class has important differences, and trust me, the WS guys want NO PART of running with the SDs!!! :-laf

 

[Amish Elegance]

How would you tech fuel enhancement limits?

You could have a guy run beside the truck with a particulate meter.

" FASTER SKIPPY! YOU'RE BEHIND THE CLOUD!! " :-laf :-laf



"I thought Skippy was a white guy. "

I can see the rules now...



Less than Stock Class

Fueling Enhancements :

Fuel injectors are limited to the number of cylinders in the engine. Any injector must have no more than 4 holes, none larger than . 0035. Holes must be drilled at no greater than 8º angle from the injector centerline in an angle parallel to the tip.



Injection pumps must be timed within 3º of TDC and contain stock components. Any disruption of fuel plates or afc screws is grounds for disqualification. Fueling "boxes" and other electronic "tom-foolery" prohibited. So help me gosh if it smokes... !





Make power now, SUCKERS!!





Even better... the tech line at the pull:



"That truck smokes, pull the injectors, I wanna see em. "

"13º tips, eh! Thought you could slip one by me, did ya?"

"The paint on that pump looks a little too shiny, for my taste. Pull it!"

"That fuel plate looks... disturbed. "

"Stock injectors, eh? Have fun in the mod class!"

Read in Soup Nazi-esque voice,"NO PULL FOR YOU!"

:-laf

 

[Tcolesanti]

Thats good Amish!!!! I needed a good laugh :-laf :-laf :-laf

 

[Sled Puller]

That Amish dude is harsh.



Do you want a job?

 

[Amish Elegance]

Let me guess, Particulate Meter Boy??

Overheard at next DHRA Pull:

"Who is that black Amish Guy??"



"I dunno, but he sure can run!" Oo.

 

[Big MAK]

Measuring fueling would certainly be tough at the track; but specifying a flow rate sure as hell wouldn't be. That way there's a hard number to go from rather then basing a "tech" on how something looks. You'd only be concerned with specific measurement of a vehicle when it was obviously not "OEM". Isn't that why DHRA has the right to tear down and inspect? "OEM Appearing" "specs" don't mean anything. You can have an OEM fuel pump that's reworked to flow how much and still be "OEM Appearing"? You know what I mean I'm sure; this is getting silly now. That said; writing rules must be a major PIA -- don't think I'm criticizing the process or the ppl etc -- some numbers instead of the euphemisms makes sense to the engineer in me.



Meanwhile... trying to raise $$ for Street Diesel parts. How 'bout I set up an Donation Account for you'all to send to? :-laf Come on now. . call it 'entertainment fees' to watch the rookie bust up his truck at IRP next month! (god forbid)