Stock Stroke 340 Build with NC Engine Builder

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RAMM said:
Yep, pretty pricey to replace but at least SuperFlow had it in stock and I had it in 4 days. Cost me the equivalent to $100.00 for every year I've used it which is about 15-16 years. J.Rob
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This dyno had a similar issue not long ago, but fortunately the shaft broke as he was just warming up a engine, not during a pull.
 
NC Engine Builder said:
This dyno had a similar issue not long ago, but fortunately the shaft broke as he was just warming up a engine, not during a pull.
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Mine broke right around 5000rpm, good thing I had a 7000rpm+ SBC on it cuz I'm pretty sure it went 7100 as I slammed the throttle back. I kept the engine running to confirm no issues. J.Rob
 
And yeah, it was a LONG day, especially with the dyno issues we had, and disappointing amount of good data. But not something I could control, just happy both engines ran well, didn't leak, and made decent power. All in all, a good day.
 
And have a new saying.

There is a JUGE difference between running a dyno and owning a dyno.

Owning a dyno is like having a harem of wives. None of them are ever happy at the same time.
 
Newbomb Turk said:
And have a new saying.

There is a JUGE difference between running a dyno and owning a dyno.

Owning a dyno is like having a harem of wives. None of them are ever happy at the same time.
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I have thought long and hard about buying a dyno, but its probably 20k for a used one, plus building a dedicated room and everything, just can't convince myself I'd ever actually get it paid for
 
NC Engine Builder said:
I have thought long and hard about buying a dyno, but its probably 20k for a used one, plus building a dedicated room and everything, just can't convince myself I'd ever actually get it paid for
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You can make money with IF you run it a lot.

Plus it should be a business driver. Not only for your shop but other local shops to come to you.

You already know but I’ll say it for John Q. Public a dyno will protect you and the customer before the engine leaves the shop.

You catch leaks and other stuff. You are breaking in the cam in a relatively safe environment.

At this point, I’d rather guys spend two days on the dyno especially if they really want to tune the engine.

Not just lash loops but developing a timing curve and testing headers and stuff.

In a shop environment you really need a guy who can run the dyno and do the tuning, but who is capable of doing other work if the dyno is not being used.

And then finding people who not only want to do it but are capable of doing it, or at least learning to do it.

Learning to run the dyno is relatively simple. Learning how to use it is much more difficult.

Learning how it actually works, and what’s wrong with it when things get sideways is much, much more difficult to do.

BTDT.
 
NC Engine Builder said:
I have thought long and hard about buying a dyno, but its probably 20k for a used one, plus building a dedicated room and everything, just can't convince myself I'd ever actually get it paid for
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Depending on what absorber you have, it’s not necessary to buy a new dyno, it’s upgrading the software. MyDyno is the route we went as we already had the big absorber on the 901 setup. Yes the dock of the 902 would be nice, but with lower volume of engines we build and the dyno being in a shipping container it’s not necessary.
 
Scody21 said:
Depending on what absorber you have, it’s not necessary to buy a new dyno, it’s upgrading the software. MyDyno is the route we went as we already had the big absorber on the 901 setup. Yes the dock of the 902 would be nice, but with lower volume of engines we build and the dyno being in a shipping container it’s not necessary.
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I dont have anything currently, I go to another shop for dyno testing
 
Scody21 said:
Depending on what absorber you have, it’s not necessary to buy a new dyno, it’s upgrading the software. MyDyno is the route we went as we already had the big absorber on the 901 setup. Yes the dock of the 902 would be nice, but with lower volume of engines we build and the dyno being in a shipping container it’s not necessary.
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There is a really nice froude dyno semi local for sale that I have been considering.
 
Newbomb Turk said:
You can make money with IF you run it a lot.

Plus it should be a business driver. Not only for your shop but other local shops to come to you.

You already know but I’ll say it for John Q. Public a dyno will protect you and the customer before the engine leaves the shop.

You catch leaks and other stuff. You are breaking in the cam in a relatively safe environment.

At this point, I’d rather guys spend two days on the dyno especially if they really want to tune the engine.

Not just lash loops but developing a timing curve and testing headers and stuff.

In a shop environment you really need a guy who can run the dyno and do the tuning, but who is capable of doing other work if the dyno is not being used.

And then finding people who not only want to do it but are capable of doing it, or at least learning to do it.

Learning to run the dyno is relatively simple. Learning how to use it is much more difficult.

Learning how it actually works, and what’s wrong with it when things get sideways is much, much more difficult to do.

BTDT.
Click to expand...
Yeah, it can be good and it can be bad. We only dyno our engines and charge a flat rate, which is about 12 hours of shop time split over 2 days as brake-in is one day and fine tuning / power pulls the next. 3 or so hours to change over and hook it up, (dry sump systems are fun) So when we get into a suck is when something is not right, like the darn injection metering unit being a pig, and you spend all day chasing your tail. We also charge for a post dyno inspection, bore scope it, check / adjust lash, leak down etc. Our customers will pay it cus it’s expected when building the types of motors we do. The problem with street car guys is that most don’t have the funds to spend a 1,000 or more for the time it takes to dyno a motor. Unless you like running the dyno for free like you, pulling the intake and heads before the damn thing even started…
 
Scody21 said:
Depending on what absorber you have, it’s not necessary to buy a new dyno, it’s upgrading the software. MyDyno is the route we went as we already had the big absorber on the 901 setup. Yes the dock of the 902 would be nice, but with lower volume of engines we build and the dyno being in a shipping container it’s not necessary.
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Do you have any pictures you'd be willing to share? I'm thinking of the very same thing. J.Rob
 
Scody21 said:
Depending on what absorber you have, it’s not necessary to buy a new dyno, it’s upgrading the software. MyDyno is the route we went as we already had the big absorber on the 901 setup. Yes the dock of the 902 would be nice, but with lower volume of engines we build and the dyno being in a shipping container it’s not necessary.
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So you have the 833 absorber? I'm kind of at a crossroads myself, upgrade with Superflows package about $55k USD or go with an entire unit from YourDyno.com and sell the complete '902 setup. I'm not going to cannabalize and try and morph the two and wind up with something that doesn't really work right. J.Rob
 
RAMM said:
So you have the 833 absorber? I'm kind of at a crossroads myself, upgrade with Superflows package about $55k USD or go with an entire unit from YourDyno.com and sell the complete '902 setup. I'm not going to cannabalize and try and morph the two and wind up with something that doesn't really work right. J.Rob
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I have the 833 absorber. I would look at your Performance Trends or your dyno.com.
 
RAMM said:
So you have the 833 absorber? I'm kind of at a crossroads myself, upgrade with Superflows package about $55k USD or go with an entire unit from YourDyno.com and sell the complete '902 setup. I'm not going to cannabalize and try and morph the two and wind up with something that doesn't really work right. J.Rob
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Is not that bad changing over as your just changing out the load cell, foot valve and data channel cables. The base setup of the 902 you already have is in place. It’s like rewiring your car, but not that hard. Maybe a day to install. The full package from Yourdyno was like 12k for what we wanted, we wanted 12 EGT, room temp, air pressure/water grains, water/ oil in-out temp/pressures, fuel pressure / temp and flow, turbo boost etc, he can customize for what data you want to collect.
 
Pretty consistent with an engine built a while back using that same cam, ede heads and a victor.

Nice work and it should be fun in a 4 speed car.
 
RAMM said:
New life for an old 340 (stock stroke)

Results remind me alot of this build. J.Rob
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I remember this post and it was an inspiration in my thinking about the build of this engine. I didn't want to just throw a stroker crank at it from the get-go. I actually contacted you about doing some of the machine work back before covid, but the logistics were part of the issue. I've never had a good experience going into Canada, especially Ontario province for some reason, and shipping iron is never inexpensive. Anyway, the parallels are pretty interesting. Your heads (by the numbers) flow less, but the cam is about a step bigger. HP and Torque peak numbers were similar but higher up the RPM range, which makes sense (to me) with bigger duration cam, cam LSA, and single plane intake. I'm really stoked to see how this thing sounds and feels in the car.
 
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