Originally Posted by Hugh R (Post 5658542)

The p traps are around $12,000 each.

I was wrong, they are Cummins and John Deere.

Someone at the organization (it's a very small elementary school district) who doesn't know anything about generators asked Cummins to do something, and they offered to sell them 4 $12,000 load banks and 4 p-traps, the load banks do nothing to reduce HP, and they were an additional $12,500 each.

Larry: here is the info from the descriptions on the Air Permits:

Cummins Model No. 4BTA3.9-G5, four cyl. 99 BHP, turbocharged, after cooled No. Serial No. at this time.

Cummins MModel 4BT3 3-G2 Serial No. 68011959 82 BHP

John Deere 4 cyl tubrocharged Model No. 4045TF150 110 BHP No Serial No.

Cummins Model No. 4Bt3.9-G4 Serial No. L00185069 4 cyl turbocharged 102 BHP

I will contact Cummins, but in looking at the permits I see three of them would have to have their BHP reduced by 50% or so. That may not be obtainable. Since I don't know generators, as Larry said some of them run 30,000 PSI on the injection which to me is amazing. I just want to be able to talk to Cummins intelligently about options.

My understanding is that any modifications to get under 50 BHP must be "real, quantifiable and permanent". John Walker, you are correct in that they look at the model and what the State and local agency will require and that is generally it, unless you can demonstrate a real, permanent drop in BHP.

Originally Posted by Hugh R (Post 5658935)

Quote from Cummins Cal Pacific LLC is $47,179.49 for four DCL International Mine-X Sootfilters.

It's a CA requirement for standby generators within 100 meters of a K-12 school (SCAQMD Rule 1470). Since these are schools, they have to comply with the rule.

My wife is the purchasing manager for the school district and I'm trying to help them out gratis

I've given them several suggestions including selling them outside of CA and buy gasoline ones under 50 HP (exempt from permitting).

Don't know about exhaust filters on diesel trucks other than that they are requiring older ones to be phased out in CA and replaced with much cleaner ones. Going the same way with cargo ships.

Originally Posted by red-beard (Post 5658985)

I think someone is trying to screw you guys in California. That price is crazy. As I said, I checked the LIST price for one for my Truck, and International with a 4.6 liter, 350 hp (262 kW) engine. And it was $1500. I can't believe there isn't something for less money.

Originally Posted by James Brown (Post 5659280)

what about making them mobile. I know there is a lot to do that but most MOBILE power plants are exempt from that reg. put the trailer on a pad and plug it in when needed.

Originally Posted by Grog (Post 5659460)

Diesels don't have carbs, throttle plates or any kind of air intake control. engine speed and HP is controlled by fuel delivery.

generators maintain a constant speed, usually 3600 rpm to maintain 60 cycles (hz) per second frequency output. If you could electronically limit the generator power output to equal less than 50hp that could work. Limiter would control fuel for combustion.

Originally Posted by red-beard (Post 5659591)

Very Interesting. Should I remove the throttle body from my truck?