Moparts

Progress on a Gen-2 HEMI

Posted By: Mopar_Rich

Progress on a Gen-2 HEMI - 08/05/15 02:00 AM

Slow progress is still better than no progress. I have to admit, I like the way it looks and Hogan's manifold, with billet runners is Jewelry. Can't wait to get it on the dyno and do some tuning!



Posted By: DemonDust

Re: Progress on a Gen-2 HEMI - 08/05/15 02:27 AM

Wow!!! drool

That is the true def of engine porn..
Posted By: DusterDave

Re: Progress on a Gen-2 HEMI - 08/05/15 03:28 AM

Nice grocery getter motor. devil

Are you going with a pair of Holley Dominator throttle bodies?
Posted By: LAD 524

Re: Progress on a Gen-2 HEMI - 08/05/15 08:31 AM

WOW looks awesome Rich - that intake is super nice !!

What will the rest of the combo be?
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 08/05/15 03:42 PM

Originally Posted By ratbastad
WOW looks awesome Rich - that intake is super nice !!
What will the rest of the combo be?


Typical stuff - not! First time I've machining the front cap/saddle and crank counterweight for a roller Torrington thrust bearing. Customer never wanted a thrust problem. Good parts: KB block (4.5) with roller cam bearings, Crower 4.625 crank/rods/Enduramax bushed lifters, CP pistons. Custom Comp cam that I designed with 18726543 firing order (LS core), Stage-V stainless rockers and Jesel drive. The Stage-V Millennium heads were done by Tim at FHO and flow well over 500 CFM. Obviously a super pretty Hogan manifold. Everything is O-ringed so no gaskets. It should produce enough to get to the grocery store, which is 1/4 mile away.

This engine is basically a slightly smaller version of engine combo 6 in my HEMI book, built for bracket racing longevity with less RPM, less compression, and a milder cam.
Posted By: rickseeman

Re: Progress on a Gen-2 HEMI - 08/06/15 05:33 PM

What did they charge you for that intake?
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 08/06/15 05:42 PM

What do you mean?
Posted By: rickseeman

Re: Progress on a Gen-2 HEMI - 08/06/15 06:00 PM

Originally Posted By Mopar_Rich
What do you mean?


How much did the Hogan intake cost?
Posted By: RUNCHARGER

Re: Progress on a Gen-2 HEMI - 08/06/15 09:48 PM

You almost don't want to put oil in these works of art.

Sheldon
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 08/07/15 01:41 AM

Originally Posted By rickseeman
Originally Posted By Mopar_Rich
What do you mean?


How much did the Hogan intake cost?


Sorry. A lot, but the customer paid in advance. I don't have the total. All I did was make sure the ports would match.
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 09/12/15 03:47 AM

It's ready for the dyno.
Posted By: hemi-itis

Re: Progress on a Gen-2 HEMI - 09/12/15 04:58 AM

Sure is purty!!
Posted By: LAD 524

Re: Progress on a Gen-2 HEMI - 09/12/15 04:37 PM

Killer Rich !!

Would love to know the spex and let us know how the dyno session goes !!
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 09/13/15 05:52 AM

588, Stage V millennium heads ported by FHO, all Crower internals, roller bearing cam, KB block, cam is my design (LS core, 18726543), Hogan intake, relatively low compression (13+). Dyno in two weeks.
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 09/23/15 06:31 AM

Even though the header ports didn't match the heads, and no vacuum pump and only 13.6 CR, it still made 1100 HP. It'll be a good bracket motor.

https://www.youtube.com/watch?v=Skeg3KK2uaM&feature=youtu.be
Posted By: mickm

Re: Progress on a Gen-2 HEMI - 09/23/15 07:39 AM

rich, do you have any more pictures of the internals? would love to see as many pics as you care to post!
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 09/23/15 07:41 AM

Anything specific? I have over 100 photos showing the progress.
Posted By: mickm

Re: Progress on a Gen-2 HEMI - 09/23/15 05:03 PM

Originally Posted By Mopar_Rich
Anything specific? I have over 100 photos showing the progress.


no, nothing specific. just think of it as an extension to your book! whatever you have time for. it's just a great learning experience to see what goes into an engine like this.
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 09/23/15 06:55 PM

I think a good "white Paper" would be to discuss what I had to do differently to get around problems. Such as the special oiling system of a KB block usually feeds the lifter galleys (extra cost gun drilling) from a groove cut around the #5 cam bearing, but if you increase the cam bearings to 55 MM roller bearings you loose the oil feed channel. Then what do you do? Maybe I'll write an article about surprises of building a big block Mopar engine with aftermarket parts.
Posted By: Skypower

Re: Progress on a Gen-2 HEMI - 09/23/15 07:29 PM

Originally Posted By Mopar_Rich
I think a good "white Paper" would be to discuss what I had to do differently to get around problems. Such as the special oiling system of a KB block usually feeds the lifter galleys (extra cost gun drilling) from a groove cut around the #5 cam bearing, but if you increase the cam bearings to 55 MM roller bearings you loose the oil feed channel. Then what do you do? Maybe I'll write an article about surprises of building a big block Mopar engine with aftermarket parts.


I would be very interested in this as I am thinking of building another Hemi for my car, more along these lines only setup for turbo's. Great job with this build.
Posted By: Mopar_Rich

Re: Progress on a Gen-2 HEMI - 09/24/15 01:53 AM

We have all seen dyno sheets but this one from the 588 HEMI is interesting for a few reasons:
1) There are two plots, one with an air cleaner and one without. Note no change.
2) If you are getting close to max HP the HP curve stops climbing and goes horizontal as torque drops. This pull stopped at 7000 RPM but as you can see "it wants RPM!" and the torque curve is very flat.
3) A BSFC of .43 shows that the engine was very efficient and happy :^)

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