J Series Honda V6 High Compression Build, Every P2R Part Installed for Racing Acura CL / Accord 

Nice video man. Not saying anything wrong with them but those DNJ pistons are Chinese made J32a3...so anyone that want "high compression" pistons can just use J32A3's. We make a Hyper/Semi Forged pistons (800hp guaranteed and tested in multiple 1000hp drag engines) that are much better and stronger for NA (Run cooler), Nitrous and Boost (High silicone content which absorb combination pressures better)... basically the same material all OEM manufacturers use in their forced induction applications (BMW's making 1000hp stock pistons, Audi 800+ stock pistons etc etc). We are also coming out with a V2 version for our pistons that will be 10.5:1 compression J35 and 9.5:1 for J32's. From there you want more compression a little head milling can be done to fine tune compression. Obviously a forced induction vehicle wouldn't use these DNJ 11:1 compression pistons

Appreciate the video. Same issue I had. Helped me make decisions on tuner and injectors. Look forward to an update of the final solution

Man.. I would love to have a garage like that..

Honda main and rod bearing shells are colorcoded to indicate thickness. Each journal and each bearing bore are carefully measured and graded as to size at the factory, and marked with an alphanumeric to indicate that size. A chart is used to determine the color bearing to be used with the journal and bore sizes to achieve exact clearance. Your guess that they would provide extra clearance at the end of an oil gallery is dismissable, as in a high pressure, low-flow lubrication system, the pressure is equalized throughout the distribution system. Hydraulics, you know. In practice, I have rebuilt hundreds of Honda auto engines using generic non-colorcoded bearings. Using Plasticgage, they all read well in spec, even though the journals were used and not refinished.

Built a 6g72 for high-comp and higher revs. In my situation the forged rods were lighter than oem if you use the BC 625 rods which are a 200hp/cylinder rod they were like 250 grams lighter than stock. Im thinking is they were built heavier because they were built for the vr4 which was a boosted car.And they just re-use the same rods for the Sl. Slap on an aluminum flywheel and billet forged 12.5:1 pistons and rebalanced the rotating assembly. + rest of the build and its a hilarious engine when your on throttle lol. Kind of a chore at low speed because duh. Makes no torque down-low the way its built and Everything past 3-4k rpms lol..

Those bearing color codes corespond to a leter stamped on the crank

Great job bro!

Great information. Love this video. I have a quick question for you. I’m getting ready to purchase one of the P2R manual tensioner however, their website I don’t have a lot of literature on it. Have you had any issue with it? Does it keep tension? does it come loose? Will purchase it again? Feel free to give as much information as you can. Thank you man appreciate your time.

1 year later how are those DNJ pistons running?

Hello I’m hoping you can please help me out. I have a j30a1 and i am trying to figure out what the clearance is for the rod bearings for my 2000 Honda 3.0 also if you can what are the ring gap specs ? I have a set of piston rings from Hastings . Any help would be greatly appreciated!! Just subbed !

Wheres part 2? Also whata a ballpark on how much this cost? Thanks

Hi, what kind of studs attach the cylinder head?

are you gonna run the P2R big tube headers ? are you gonna bypass the idle air control valve ?

The older ones look they might have run lean, or the ring gap was too tight.

Hi, small question sort of. I have a 99 accord with the notorious slipping auto. I want to convert it to the 6 speed manual & the wrenching side seems straight forward. The ecu side is more complicated. Is there a stock ecu I can use in place of the auto ecu & or I would like to remove egr & have a reverse lock out working. What ecu can I use if & or removing the egr with the money light & getting everything to be happy? A swap conversion of j32 coil on plug (my j30 is still distributor) might be the engine in place as well.

Awesome vid man, I have a j32a2 that I’m rebuilding and I want to know what are good main and rod bearings to go with ?

Hey man, question did you break the crown of those old pistons not filing the rings down? I'm about to swap a J37 into my 06 TL(J32a3) and gap the rings for a 150-200 shot of Nitrous. Not sure if I should get new pistons or not. Also my transmission is automatic but built up a little. It has a 450hp band inside and a transmission cooler from a F-350 truck. lol Hoping the auto trans will sufice. I don't see why not it has never overheated since the cooler was put on.

Are the J30 and J32 blocks similar or different? I have a J30 and have heard the J32 swaps right in or just the J32 heads swap over to the J30 block. How true is this? How much power can the J32 withstand over the J30? Thanks!

11:1 is too low for an all motor build. Don't you think ? Wouldn't 12.5:1 CR pistons be more appropriate ? have you tried running those , with the stock cam ?

hello, i need help/advice on a well. i bought a property and the previous owner got a well drilled. as far as he knows its 40ft deep and produces 5gpm. im looking to hook it up myself. would you recommend i install a jet pump or a submersible one. and what kind of should i purchase? thanks

Can you mount the intake runners to the head before you put the head on?

Can you explain the set up for the oil filter with the AN fittings

How do you position the rings when installing them on the piston ?

Ay we have the same hand writing are you a leftie?

will the 4wd tranny from 2012 pilot fit into a j35a8?

Every part except their big tube headers

you changed the knock sensor to a different type, Why?

Is this being done a j30 or 32 ?

Halferland makes some really nice looking pistons for these engines too in case you wanted to go lower compression turbo

What was the total whp and lb of this build?

How would you rate dnj pistons?

Whatever happened to this engine build?

What was total cost

Honda Des needs to stick to four cylinders. Even the mighty Toyota can't beat Mitsubishi v6s.

The background music distracts from the video

Over torquing crank bolts can lead to crushing your rod bearing so I wouldn't recommend doing this at all bad idea I would never follow this builder