What is a "stock" Duramax ?
- Thread starter Micheal Tomac
- Start date
1. Turbo stock, no drop in wheels
2. CP3 pump any factory pump or regulator
3. Injectors probably the toughest thing out of the bunch, the list started out with stock injectors
4. Tires DOT, drag radials or any street tire
5. Manifolds & up-pipes :thumb:
6. Fans - electric fans :thumb:
7. Intercooler & piping I don't think an aftermarket intercooler is going to make a big difference
8. EGR delete / Y-bridge replacement :thumb:
9. Turbo inlet, mouth piece, elbow :thumb:
10. Down pipe :thumb:
Im going to add
engine - strengthening the shortblock should be allowed, the limits are being pushed & weak factory parts are going bend, crack, break etc.
stock cam & no port&polished heads
suspension - torsion bars & leaf springs, no coil overs or 4 links
truck - 2500hd or 3500 or for some off the wall reason van
2. CP3 pump any factory pump or regulator
3. Injectors probably the toughest thing out of the bunch, the list started out with stock injectors
4. Tires DOT, drag radials or any street tire
5. Manifolds & up-pipes :thumb:
6. Fans - electric fans :thumb:
7. Intercooler & piping I don't think an aftermarket intercooler is going to make a big difference
8. EGR delete / Y-bridge replacement :thumb:
9. Turbo inlet, mouth piece, elbow :thumb:
10. Down pipe :thumb:
Im going to add
engine - strengthening the shortblock should be allowed, the limits are being pushed & weak factory parts are going bend, crack, break etc.
stock cam & no port&polished heads
suspension - torsion bars & leaf springs, no coil overs or 4 links
truck - 2500hd or 3500 or for some off the wall reason van
I don't have much of a say in this as i've never set foot on a drag strip... but as it is for truck pulls around me pretty much anything goes i guess if you can prove that you have a stock (none modified) turbo lol
To me my truck is not a "stock truck" i do have stock internals, turbo, injectors, cp3 & headers and up pipes... i've got the egr delete y-bridge, Banks intercooler, Fass, tranny & then the basic tuner exhaust intake etc... BUT there will always be people complaining about a "stock" form truck... even if we make a "stock Truck" just intake tuner exhaust, it'll never end!:roflmao:
To me my truck is not a "stock truck" i do have stock internals, turbo, injectors, cp3 & headers and up pipes... i've got the egr delete y-bridge, Banks intercooler, Fass, tranny & then the basic tuner exhaust intake etc... BUT there will always be people complaining about a "stock" form truck... even if we make a "stock Truck" just intake tuner exhaust, it'll never end!:roflmao:
easiest way i see it is any thing go's as long as you keep stock turbo/wheels/housings and a single pump. no drugs.
How about an option for "None of the Above" ? 
I think stock should be stock. No bolt-ons/mods to the engine at all. Built trans, lift pump and tuning only. A downpipe could be acceptable I guess. Suspension/tire mods are OK too.
I think stock should be stock. No bolt-ons/mods to the engine at all. Built trans, lift pump and tuning only. A downpipe could be acceptable I guess. Suspension/tire mods are OK too.
I say everything but turbo and cp3- these limit your air and fuel which limit the maximum HP. But it dont matter, im just a sled puller:thumb:
-Steven
-Steven
But LLY flow injectors flow the most out of the 4 first duramaxs..Also lb7 injectors are bigger than LLY.....LB7s shouldnt be allowed
If injectors are allowed why shouldn't modded cp3s? Really can't gain too much without using both anyways. Guys like me (and you'll start noticing more and more LBZ guys) have trouble holding rail pressure. I bought a big cp3 to try and cure that. I'm only looking for 26,000 WOT much nicer than 20,000, something some people have done weirdly on a stock pump before. I just bought it trying to make my truck where it should have been from the beginning, not to set records. Why buy a brand new lbz pump, when I could get this and have more room to grow? To make much more power with it alone you'd have to add more and more pressure to atomize much better, and iirc bodies will start cracking at 28,000 substaineds for long time. So really don't have too much gain on the other guy without having injectors to compliment it. JMO
I don't have a dog in this fight, so I am not going to vote, but just a thought. Why doesn't someone just make a set of rules and go with it. I think there is one now, but I recall there being some gray areas and nobody is really "in charge". It needs to be rules where there are no ifs, ands, or buts about it. It would still be on your honor like it is now (that is how it is isn't it - there isn't an "official" inspection), and you wouldn't have this pissing contest all the time. You would have to modify the old list to fit the rules - if someone on the old list had mods that weren't allowed on the new list, they would be bumped off. It would be easiest to just start completely over, but I realize that alot of the trucks on the list are long gone from stock and will never be that way again, and that would not be fair, so just forget that I guess.
The biggest issue you would have doing that is who would get to make the rules? Obviously that would need to be voted on or determined some how.
Anyway, just a thought, but I think it would simplify things. Flame me if you wish.:thumb:
The biggest issue you would have doing that is who would get to make the rules? Obviously that would need to be voted on or determined some how.
Anyway, just a thought, but I think it would simplify things. Flame me if you wish.:thumb:
When I was stock I thought the "rules" where stock turbo, stock CP3 and stock injectors. Any one of those 3 things can get a truck up to 600 rwhp. doing 2 or all 3 can get you to that mark and over.
When I got on the list I was actually a built trans, lift pump and tuning. Everything under the hood was stock except for a shimmed FPRV. I was even on some bald 10 ply BFG AT's.
I really don't understand the drive to have the fastest stock truck to the point of dumping thousands into a truck to be the fastest "stock" guy out there. I was trying to go as fast as I could with as little money as I could. Once I wanted to go even faster I stopped trying to claim being stock and just started to add more and more parts to get faster.
I just thing the Turbo, CP3, and Injectors should be stock, or stock replacements, (LBZ/LMM CP3's/ turbos in LB7/LLY trucks or the other way around would be OK IMO)
When I got on the list I was actually a built trans, lift pump and tuning. Everything under the hood was stock except for a shimmed FPRV. I was even on some bald 10 ply BFG AT's.
I really don't understand the drive to have the fastest stock truck to the point of dumping thousands into a truck to be the fastest "stock" guy out there. I was trying to go as fast as I could with as little money as I could. Once I wanted to go even faster I stopped trying to claim being stock and just started to add more and more parts to get faster.
I just thing the Turbo, CP3, and Injectors should be stock, or stock replacements, (LBZ/LMM CP3's/ turbos in LB7/LLY trucks or the other way around would be OK IMO)
Stock Turbo, Stock Injectors, a form of a stock CP3 (LB7 with LBZ reg ok)....and any normal bolt ons.
I think anything past that and you really make it unfair to the competition.
I think anything past that and you really make it unfair to the competition.
Stock = What I'm running.
Heavily modified = What the other guy is running.
This has been the law ever since the Model T.
In any case, IMO - Exh, Int, Tuning, Lift pump, regulator, Trans, EGR/Emissions defeats = BPU Basic Performance Upgrades. Injectors? That's a toughy. On an LB7, they are an internal engine part, but on LLY+ they are bolt on. So I'd say no.
Heavily modified = What the other guy is running.
This has been the law ever since the Model T.
In any case, IMO - Exh, Int, Tuning, Lift pump, regulator, Trans, EGR/Emissions defeats = BPU Basic Performance Upgrades. Injectors? That's a toughy. On an LB7, they are an internal engine part, but on LLY+ they are bolt on. So I'd say no.