My G3 Hemi Dyno Results

[69Chrgr]

 

[70chall440]

Good build, that should be a beast on the street.

 

[69Chrgr]

Good build, that should be a beast on the street.

Thank you. This was a big learning curve on these engines compared to the older legacy engines.

 

[70chall440]

Thank you. This was a big learning curve on these engines compared to the older legacy engines.

I have dabbled with the G3 only as far as installing a 6.4 cam in my 5.7 crate engine that I have in my 71 Charger build which was a lot more complicated than it should have been. I am so glad YouTube exists these days, makes things a bit easier than back in the day when it was all discovery learning, but there is still a learning curve obviously.

 

[Mean416]

Man that's awesome. Near 600 NA out of a 5.7 very impressive

 

[69Chrgr]

Man that's awesome. Near 600 NA out of a 5.7 very impressive

It's actually stroked to a 392 (6.4) but still NA on pump gas. Almost 1.5 horsepower per cubic inch.

 

[Icetech]

How did the oil rings roll over? never heard of that before

 

[Mean416]

How did the oil rings roll over? never heard of that before

Yeah especially without catastrophic engine damage

 

[Map63Vette]

How did the oil rings roll over? never heard of that before

I had this happen to me once just when putting the pistons in. The ring compressor wasn't low enough on the piston and the bottom oil ring popped out and got stuck between the piston and cylinder wall. Folded the ring over pretty good and made it hard to turn the assembly over, but it never ran that way. Caught it early enough to pull it back out and swap it with a fresh one.

 

[Icetech]

I had this happen to me once just when putting the pistons in. The ring compressor wasn't low enough on the piston and the bottom oil ring popped out and got stuck between the piston and cylinder wall. Folded the ring over pretty good and made it hard to turn the assembly over, but it never ran that way. Caught it early enough to pull it back out and swap it with a fresh one.

ah i could see that happening... crazy stuffs.

 

[69Chrgr]

How did the oil rings roll over? never heard of that before

Low retention oil control rings along with a rail spacer. They are so thin that you REALLY need to take care that they stay in their respective groove. They pop out VERY easy. I learned NOT to use a piston installation tool and only use my fingers along with a properly sized piston sleeve for assembly.

 

[69Chrgr]

I had this happen to me once just when putting the pistons in. The ring compressor wasn't low enough on the piston and the bottom oil ring popped out and got stuck between the piston and cylinder wall. Folded the ring over pretty good and made it hard to turn the assembly over, but it never ran that way. Caught it early enough to pull it back out and swap it with a fresh one.

Bingo.

 

[Icetech]

Low retention oil control rings along with a rail spacer. They are so thin that you REALLY need to take care that they stay in their respective groove. They pop out VERY easy. I learned NOT to use a piston installation tool and only use my fingers along with a properly sized piston sleeve for assembly.

Lesson learned.. that could have been soo much worse. Glad it all worked out. I still have 3-4 months of my block at the machinist.. hoping to have a motor done for spring at this point..

 

[cpearce]

Nice!

 

[racerjoe]

Can you share the cam specs?

 

[69Chrgr]

Can you share the cam specs?

239/251 112+2 .583/.601

 

[racerjoe]

239/251 112+2 .583/.601

Well that explains the power! That thing is going to be rowdy!

 

[cpearce]

239/251 112+2 .583/.601

Whose cam? Is that a custom or shelf grind?

 

[69Chrgr]

Whose cam? Is that a custom or shelf grind?

It's a custom grind by Comp Cams