Supernatural 3.7L 9,000RPM Project (Page 11/20)
Blacktree FEB 05, 12:03 PM
I'm guessing a Super Damper.

Also, I'm a little envious of the lightweight crankshaft. The one in my BMW is over 50 lb! That's one downside to having an inline 6 engine.

PS - I'm now on Rumble as well, user name MichaelBlacktree. Haven't uploaded any videos yet.

[This message has been edited by Blacktree (edited 02-05-2023).]

jdv FEB 05, 04:42 PM
How much heavier is the lz9 forged crank? They have the 58x trigger wheel.
La fiera FEB 05, 08:29 PM

quote
Originally posted by StreetRod4:
Rei,

Which harmonic damper are you using for this?



Superdamper it is, like Blacktree guessed. It is the SBC application part number 917781
La fiera FEB 05, 08:48 PM

quote
Originally posted by jdv:

How much heavier is the lz9 forged crank? They have the 58x trigger wheel.



I don't know exactly but the LX9 crank has at least 2 things that go against weight compared to any other 60* cast crank. The 1st one is that the LZ9 crank is forged and that automatically is heavier and the 2nd one is because the rod journals are bigger in diameter compared to the L44 crankshafts. So, yes it does have a handicap. When it comes to crankshafts, the important thing is not the overall weight of the crankshaft. What really matters is from where you take weight off. For example, on the 3.7L on the car now I made the crank lighter by 2 pounds but had to put almost everything back on it. So, all the weight I added to make up for the heavier rods and pistons was installed closer to the axis of rotation. So, even though the crank weights the same overall, the outermost diameter is lighter. Thus mimicking a super light crank! The throttle response and acceleration are the result of this approach.

[This message has been edited by La fiera (edited 02-05-2023).]

La fiera FEB 05, 08:59 PM

quote
Originally posted by Blacktree:

I'm guessing a Super Damper.

Also, I'm a little envious of the lightweight crankshaft. The one in my BMW is over 50 lb! That's one downside to having an inline 6 engine.

PS - I'm now on Rumble as well, user name MichaelBlacktree. Haven't uploaded any videos yet.




I'm following you now! I still have my subscription from YT from you. I just got an alert for your last video.

Blacktree FEB 07, 07:35 PM
Rumble just notified me of your newest video. It was uploaded 3 days ago? LOL

Oops I didn't realize I had to make a channel in addition to registering a user name. That's done now. Here's the link: https://rumble.com/c/c-2376760

[This message has been edited by Blacktree (edited 02-07-2023).]

lou_dias FEB 08, 02:14 PM
I'm uploading a video now talking to my head guy and looking at the work he did.
https://rumble.com/v28sw5y-fresh-fiero-heads.html

[This message has been edited by lou_dias (edited 02-08-2023).]

La fiera FEB 10, 07:13 PM


Block is ready for assembly!

[This message has been edited by La fiera (edited 02-10-2023).]

Notorio FEB 11, 12:02 AM

quote
Originally posted by La fiera:
Thank you! I've never heard of anybody doing direct injection. For performance reasons I would not use direct injection if I had the option.



What is your reasoning? I thought that direct injection is the reason today's stock motors are so much peppier than yesterdays.
Notorio FEB 11, 12:09 AM

quote
Originally posted by La fiera:



Block is ready for assembly!






Question: without going through the whole post, the block is a modified 3.4, yes? At least that's what I think seeing the F and the X-web on the casting. Bored over and longer stroke?