DHRA 2.5 Lets hear it

Well this could be interesting. I agree with the (no bushings) as this was a small problem in our 1st pull. I adjusted the rules to get everyone there and got alot of whinning. I think getting the promoters together and coming up with some standard rules would help and get people to travel a bit more.

Chuck
New Era Diesel
FTPL Productions
 
JW3 said:
Work Stock class was designed to bring in the guys off the street. It was also a class that they would be able to be somewhat competitive in.

Unfortunately all of this has changed. Often you hear "we BUILT this truck to run in work stock". Work Stock was not meant to have full built motor's and full built street chassis' in their class. But thats how its ended up.

Once again it seems like everyone wants a class to fit their needs/truck. I can't blame them though because I feel the same way. Most have set their trucks up to run a certain way.

Back to the subject at hand though:

2.6" (to allow for 66mm turbo)NO BUSHING (shooting myself in the foot!), Must bolt to stock manifold (ie T3 foot)
4500rpm
Dual pumps aloud.
Stock driveline.
1" travel, traction bars aloud
Rear hitching point must be beyond rear of truck.
Hanging weights aloud not to stretch beyond 60" of center axle line.
No water or drugs (obviously)
Basically old street with 2.6" no bush.
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I disagree.

2.5 no bushings or any charger that came stock on that generation of truck. (ie LLY Duramax and 6.4 Ford factory twins legal.)
Adapters must be legal for the GM and Ford guys. Limit it to T4 or T3 foot.
Single CP3.
Stock driveline.
1" travel, traction bars aloud
Rear hitching point must be beyond rear of truck.
Hanging weights aloud not to stretch beyond 60" of center axle line.
No water or drugs.


If you go 2.6 and dual Cp3s you will need built engines to compete. With a 2.5 charger and one pump you should be comptitive with a stock long block. I have no trouble with P-pumps on 24v as I think it is not really an advantage if you run a real 2.5 turbo.
 
zstroken said:
I think the 2.6 class should be adapted. Aren't the late model Dmaxes already running a 2.5+ charger??
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The LLY charger is bigger than 2.5 but will pass a 2.55 plug. LB7, LBZ, and LMM are smaller than the LLY charger. FWIW the LLY charger in stock from is really does not make any more power than the other Dmax chargers. Just because it is bigger does it does not mean its better.
 
Sledpuller said:
How do you like this one?
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Limiting hanging weight is a bad idea IMHO. Either hanging weight is legal or it is not. I am for hanging weight. Hanging weight really helps the shorter trucks. Look what wins in no hanging weight classes. Trucks like mine Crew cab long beds. No hanging weight wheel base is king and that sucks IMHO.
 
I agree with the adapter plate being allowed. Since this is supposed to be a cheaper type class, a cheaper charger could be baught and installed on the unit.
 
teddybear said:
I wish like heck that everybody would just adopt the SAME set of rules so you aint gotta worry if youll be legal or not if you go to a different pull.
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In case nobody heard that, let me turn it up a little...
 
DieselWrencher said:
I agree with the adapter plate being allowed. Since this is supposed to be a cheaper type class, a cheaper charger could be baught and installed on the unit.
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How do you figure when you can buy an S400 and adapter plate for less than a grand brand new but a special "silver bullet pro street sled-pullin fat shaft" that bolts directly to the manifold is priced closer to $1800??????

-Tom
 
again, adaptors HAVE to be allowed in order to allow Duramax trucks (and maybe Fords???) to change chargers. Without adaptors (in the case of the Duramax, the pedistal that hooks to the up pipes and intake manifold is the adaptor) the class will be completely lop sided like it is now just different make of truck on top.

Hanging weights being allowed is simply a no brainer IMO. Practically every pull with the exception of the back woods fair pulls that try to have pure stock (meaning no injectors, no boxes, no smoke, etc) classes allow them. You can if you want but certainly don't have to.

C-ya
 
Tcolesanti said:
How do you figure when you can buy an S400 and adapter plate for less than a grand brand new but a special "silver bullet pro street sled-pullin fat shaft" that bolts directly to the manifold is priced closer to $1800??????

-Tom
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Did you not read what I posted or what? I said I am for the adapter. I am pretty sure I didn't type in French for ya.
 
I misunderstood what you wrote, thought you said you were against it, don't get your f-in panties in a wad.

-Tom
 
Cummins Driver said:
2.5 NO BUSHING, and a 4500 limit. That would make it MUCH easier for someone like me to compete than allowing bushings, because more than likely a 2.5 is as big as i will want to go since i will be driving my truck on the street everyday. 2.5 is a good class in my opinion. Lets the actual street trucks have a chance to compete.

Eric
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Smokem said:
There is a split in the Street Class where it is just not competitive for some people but they cannot drop to meet Workstock rules.
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These are key points. Over yonder here in Missouri we are facing the same battles. The Street Diesel class is divided between people who have daily drivers, licensed, tagged and actually used. The type of truck that when you read the DHRA Street Diesel Class Rules namely....

The Street Diesel (SD) class is designed for streetable pickup trucks (full-bodied diesel pickup trucks). Valid DOT registration and license plates are mandatory. The vehicle must be four-wheel drive.
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...these trucks meet the "spirit" of what the class was designed for. But, then we have the other half. The half that is pushing the class to be more purpose built machines, no tags, they don't drive them everyday. But there's not enough of these to justify the existence of a separate class. This is very frustrating to the rest of the pullers because most associations are flexing the rules enough to allow these machines to hook in a common class. It's "growing pains" and until we get more pullers I doubt much can be done.

Now to the issue at hand. Work Stock is a great class for the beginner. Relatively cheap to get started in and get people hooked. I like the Street Diesel class when ALL of the rules are enforced. Especially that part I quoted above. If a puller wants to build a purpose built truck, there's a class for it, Super Street or Modified. If Street Diesel will continue to allow purpose built trucks then a 2.5 class would make for a good class for the rest of us daily driver pullers to drop into. But, I think if the current 2.8 class was better enforced you wouldn't need a 2.5 class. In my opinion, increasing the Street Diesel limits to 3.0 and adding water would probably negate the "must be licensed and tagged" little blurt I quoted above.
 
I would say a 2.6 rule would be a good one, but honestly, I think a 2.5 on a 12 valve would be tough enough to be able to keep EGT's down when towing, and I have to be able to tow with my truck, so that is my reasoning for 2.5.
 
"I wish like heck that everybody would just adopt the SAME set of rules so you aint gotta worry if youll be legal or not if you go to a different pull."


Thats a sore subject. DHRA set out to do just that very thing, and it was going along nicely. Brush pulls across the country over were adopting the rules for about 2 years.

Then, some local boy decided that if he pushed his fair board to change this or that rule, it would keep the neighboring counties trucks out of his hometown pull.

Then a couple major pulling shops, decided to change the rules for their pull to match their customers trucks, and so on, and son.... you cannot makepulling rules for the whole country, state or even a county.

Pullers are self absorbed, must win at any cost, cant see over their own hood crazys. Its a sickness.
This thread is proof of that.
Everyone wants a 2.5 class, cept they want THEIR OWN 2.5 class that matches their truck.
 
I want a 2.5" class. I will not be in it. My turbo needs a bushing to meet the 2.8 rule.

I like the 2.5" because it allows locals with stock turbos to be competitive and it allows all three brands to run strong with out needing more than bolt ons.


2.6" will need around 650 to 700hp to be competive in my opinion. For a Dmax and a Ford that means hard parts. For CR trucks that means two CP3s. If you go 2.6" please bump Street to 3" no bushing. If not the classes will be to close each other. More of my $.02
 
What about- Work stock: 2.5" bushing allowed (to incorporate off the shelf 66mm)
Street Diesel: 3.0" no bushing, small driveline, maybe water?
Super: same
Mod: I don't know not enough money

-Tom
 
I am of the thinking less things to have to tech the better for everyone. More rules to tech the harder its is to keep events on schedule and hard on the guys teching.

2.5 bushed allowed (this will let the 66mm guys run since they already have them)

Adpaters are ok (is a t6 really gonna help that much on a 2.5 charger?) Also any PSD that wants to pull will have a t4 style charger since thats about all that will go on them.

Allow wieghts, guys are gonna add ballast anyway let them do it easier. The trucks in that class vary too much from the factory, you have a 3rd gen or a Ford that is 7800 from the factory or a 2nd gen or GM thats under 7k. I accually like about a 8200# class cause if you add anything to the 3rd gen or a ford its over 8k.

Single pump for all brands. P-pump allowed on 24v's whats the diff.

Let motor swap trucks pull, as long as its a 1 ton or lesser engine let them pull, not fare to have to pull in Street when the only reason is the engine didnt come in the truck. Believe me, motor swaps are becoming very popular.

4500rpm, p-pump guys need it, let them have it cause common rail trucks will be right there soon anyway. GM's are already there. Only problem is how do you tech 4500 on a daily driver truck? must have a recall tach to prove it or you are dq'ed? Now guys haulin hay will have a big tach to look at during the week.


Street-

3.0 no bush

water ok, put whatever you want in it cause if you do you will blow your motor up

unlimited rpm

1 ton driveline

may have blocked suspension but cant be solid

8200# (only cause my pig wieghs so damn much)

JMO
 
my take

2.6 (as alot of street chargers are 2.6) s300's(htt, II, schied) hx50's, small wheel s400's no bushing
no rpm limit (all an rpm limit does is give an auto an advantage)
bars and hanging weights permitted, 1inch blocks
dual cp3's and 13mm p7100's permitted. (many also use these setups on the street)

then make 2.8 a 3.0 with water and unlimited driveline. Basically consolidate 2.8 and superstreet, because as I see it trucks like coppess and amos with 3.0 bushed chargers are not street motors. theyve already spent the money on the motor (evident by coppess 2nd place finish among the 3.0 trucks at schied) 900hp on a single is a little much for street.

I dont see a need for workstock, because the people who are going to follow a series are not people with stock trucks, however there are many people with 600hp daily driven trucks who would fit in a street class and follow points.

again just one mans thoughts
 
WS is working nicely, its not leaving.

Hey guys, FORGET 4500 rpm rule in a new class. One class is enough, besides, you can't turn big rpm with these little chargers, and if you do, it doesn't do you any good.

Anything other than WS will have hanging weights.

Forget 8200# House, bean!!!

Motor swaps, ok, 1 ton or smaller.

Adapter plates/flanges will be allowed.


2.5 w bush....2.5 no bush....2.6 no bush.....

Personally I like the 2.6 no bushing.
 
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