Ronnie's NA Build

[VIPR PWR]

Back on topic, awesome build!!!

What was the Topic ? Oh that’s right Ronnie’s build .. yep back on topic ,, But Ronnie start the Honig by bringing up Ricardo Montanan from the old commercials hahaha ! commercial break over and back to the build and strikers

 

[Wifey]

What was the Topic ? Oh that’s right Ronnie’s build .. yep back on topic ,, But Ronnie start the Honig by bringing up Ricardo Montanan from the old commercials hahaha ! commercial break over and back to the build and strikers

That's true!! Ronnie did it!!

These Canadians and Kiwis are hoing their own threads! Hahahaha

 

[VIPR PWR]

That's true!! Ronnie did it!!

These Canadians and Kiwis are hoing their own threads! Hahahaha

better watch your post count ,,, you have 2 possible contenders hahaha

 

[VIPR PWR]

Polar opposites

No problem with Bi Polar and Jekyll and Hyde

 

[Kiwi SRT10]

SRTBrad(?) took this shot of Jerry's engine and it clearly shows what I'm referring to AND it is a better picture than the one I took of my own engine. Thank you Brad! I promise your photo will not be used for monetary gain,,

There is little point in buying the "costly" (and recommend coated) Gen IV bearings without cutting this groove into the block's main bearing saddles. If it isn't done, the bearing won't work as designed.

Other than that, I did some minor rounding off of some oil passages by hand- Sorry no pics.

I used a 1-piece oil pump relief shuttle as some of the Gen IIIs produced an oscillation with the stock 3-piece assembly which is never good in any fluid system.

To offset the added oil pressure created by the bearings and the 1-piece, I switched to 0-30 from 0-40. I use WIX oil filters. They are tough (burst is 200+ p.s.i.) and the canister actually contains a filter media that filters the oil!!!!

The coated bearings (are supposed to) shed oil during operation and reduce parasitic losses. I'll take the Engineer's word for that, but it makes total sense..
The reciprocating took very little effort to turn over by hand on the bench and is something I always strive for.

Hope This Helps.

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Did the thinner oil drop the oil pressure by much?
Was there less oil splash at the rockers?

 

[VIPR PWR]

 

[VIPR PWR]

 

[rottenronnie]

Did the thinner oil drop the oil pressure by much?
Was there less oil splash at the rockers?

15 psi drop
I don't have excessive oil around the rocker gear, but never did.

 

[Kiwi SRT10]

15 psi drop
I don't have excessive oil around the rocker gear.

Our builds sound very similar.
Coated gen4 bearings, etc. Our cams are slightly different and injectors.
I went with the Boundary Racing Pumps oil pump.

 

[rottenronnie]

Our builds sound very similar.
Coated gen4 bearings, etc. Our cams are slightly different and injectors.
I went with the Boundary Racing Pumps oil pump.

I also went with a one-piece oil pump shuttle, so between that and the Gen-IV oiling system, my oil pressure went up.
I'll likely modify the shuttle-spring as the high(er) pressure is very likely costing me 25-30 peak horsepower.(Those numbers according to tests my buddy at Stelantis has done). Who knows, it may also pick up some mileage as it is a steady-state parasitic loss even at highway r.p.m.
That could be a small winter side-project.

Once you start modifying engines or ??? they are being re-engineered and can sometimes take a bit of work to get them "right" again.

 

[rottenronnie]

A bit of Before/After photo study required:

The red-circled area is an all new area of burn since lowering the Injectors. A very worthwhile tweak, as there is now more burn-area immediately under the Injectors, and indicates more piston top being utilized for power production.

Its all part of optimizing what you have.

I've seen lack of colour on street engines with ported heads that, while had good flow numbers, didn't produce much power. They actually produced less than before porting. This isn't always the case of course; But this particular set of heads created large areas with no combustion evidence. The same could be said for areas on the cylinder head side of the combustion chamber.

For anyone doing research on this, keep in mind my engine is NOT a race engine, doesn't run a 16:1 c.r. on exotic fuel and spends a mere FRACTION of its running life at high r.p.m.
A RACE engine tends to read ass-backwards with regards to burn patterns (less is better).

The borescope was quite zoomed in, so the barbecued look is greatly exaggerated.

Squish/Quench around the perimeter of the dome is working as it should and provides relief from the 11:1 compression ratio for the pump gas.

Kiwi SRT10, If you get a chance to pull a few plugs and have a look inside with a scope, you'll have a very good idea of how things are working in your own engine. I think you were also using shorter than o.e.m. Injectors (?) Or it caught fire and you abandoned the idea. I don't remember.