Going mechanical with a Moose Omega Marine IP

[n8in8or]

That is one thing I have always loved about even a stock db2 over any stock or programmed ds4. Throttle response is way better. I've always been a fan of how a db2 response to partial throttle vs the ds4. Glad you're up and running and enjoying it!


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I had no idea! But I do now.

 

[Burning oil]

Would you say 8 sec 0-60 time? Looked like it to me.

 

[n8in8or]

Would you say 8 sec 0-60 time? Looked like it to me.

I'm getting about 7.3 when I watch the video and use a stopwatch.

 

[NVW]

Wow, pretty quick, I thought in the 7 second range as well.

 

[3500_6.5]

I'm getting about 7.3 when I watch the video and use a stopwatch.

That's faster than most late 70, 80s and early 90s "muscle" cars lol.

It'll beat my dually for sure. Which means I need more fuel![emoji57]

Heck of a build though. You've done a nice job on this. You've taken a lot more care and patients building yours than I did on mine and it shows. Something worth the read for anyone wanting to build their 6.5. Nicely done! [emoji1303][emoji1303]

 

[n8in8or]

Wow, pretty quick, I thought in the 7 second range as well.

Thanks Leo. And actually, 0-60 isn't really a fair assessment since it spends the first second or so just trying to clear all that fuel before it can get the turbo spooled up. However I wanted to be fair and give an apples-to-apples comparison so it was fair in that regard. I suppose I should have done a boosted launch before and after to see that comparison. That is however why I did this run to 80mph, because it really does shine once it gets rolling. I'm really interested to see how it responds to the increases shift rpm, but I will wait to do that until after I install the Puff Limiter so I can do a fair comparison with that as well. Theoretically the Puff Limiter may actually improve 0-60 because it won't dump all that fuel and black smoke which I've heard can actually cool the exhaust which would slow the spool of the turbo. Again, that's why I thought it important to do videos before I did the Puff Limiter. We'll see how close actuality is to theory.

 

[n8in8or]

That's faster than most late 70, 80s and early 90s "muscle" cars lol.

It'll beat my dually for sure. Which means I need more fuel![emoji57]

Heck of a build though. You've done a nice job on this. You've taken a lot more care and patients building yours than I did on mine and it shows. Something worth the read for anyone wanting to build their 6.5. Nicely done! [emoji1303][emoji1303]

Thanks Tim! Yeah, bring on the 80 Z28s!!! I still have the cruise control to do too, but I have that mostly figured out. Since it's my daily driver I wanted it to be a well-sorted combo so hopefully anything I've figured out in using the pieces I used will help others in the future. I know I'm not the first to do this, but hopefully it helps someone else wanting to follow the same path.

 

[n8in8or]

That's faster than most late 70, 80s and early 90s "muscle" cars lol.

It'll beat my dually for sure. Which means I need more fuel![emoji57]

Heck of a build though. You've done a nice job on this. You've taken a lot more care and patients building yours than I did on mine and it shows. Something worth the read for anyone wanting to build their 6.5. Nicely done! [emoji1303][emoji1303]

Oh, and I don't know about more fuel, but you could probably use less weight than I have. How much does your dually weigh?

 

[Burning oil]

Was it hard to keep the front wheels on the ground?

 

[n8in8or]

Was it hard to keep the front wheels on the ground?

Nah, I filled my front license plate holder with concrete for ballast.

 

[THEFERMANATOR]

Oh, and I don't know about more fuel, but you could probably use less weight than I have. How much does your dually weigh?

Your TAHOE should be a good bit lighter than a dually. I know my BURB with me in it weighs right at 7300 with 1/4-1/2 a tank of diesel(according to 3 different scales). Traction becomes an issue when the power really hits.

 

[FellowTraveler]

Thanks! ...well my 6.5 DOES inhale

The Hypermax Puff Limiter is a piece that replaces the factory top on the DB2 pump and it has a diaphragm on it. The diaphragm is hooked to manifold pressure in order to sense how much boost you are making. You preset the diaphragm to only respond above a certain boost level - so BELOW that boost level it limits the amount of fuel the pump puts out and ABOVE that level it gives you full fuel output. This helps to make sure you're only putting out as much fuel as the engine can use and not before it can use it. Does that make sense? I'm not sure I'm explaining it well. Here's a link to Hypertech's site.

https://www.gohypermax.com/ProductDisplay.aspx?ID=d9ee0536-6204-46a6-8455-a3a12867ecce

Works like a rising rate regulator, nice!

 

[FellowTraveler]

I see in the video your torque converter is stalling around 1.8k........the vid on the boost level & egt's is somewhat blurred what #'s & what rpm does the turbo lite up?

 

[Will L.]

Nice. What TC do you have and what is your truck weight?

Can you help the launch with power braking? Acceleration is nice and smooth above 10 mph.

 

[n8in8or]

Your TAHOE should be a good bit lighter than a dually. I know my BURB with me in it weighs right at 7300 with 1/4-1/2 a tank of diesel(according to 3 different scales). Traction becomes an issue when the power really hits.

Yeah, the Tahoe weighed just over 5900 pounds with a full tank of fuel and me in it at the local concrete company scales. I've seen video of your burb taking off and it is MIGHTY impressive! I wish I could achieve that level, but I know the IDI will never have that in it. An additional advantage I have besides my lower weight is my short wheelbase, I'm sure that really helps to get the weight transferred over the rear tires so I can hook up better than you guys with your longer wheelbases.

Works like a rising rate regulator, nice!

Yep! Unfortunately it's only on or off and not a linear rise, but it should still help a lot.

I see in the video your torque converter is stalling around 1.8k........the vid on the boost level & egt's is somewhat blurred what #'s & what rpm does the turbo lite up?

Yeah, sorry about that. It looks like the EGT reaches a peak of 1050*F and boost hovers around 26psi but hits 27psi at one point.

Nice. What TC do you have and what is your truck weight?

Can you help the launch with power braking? Acceleration is nice and smooth above 10 mph.

Thanks. I have a Precision Torque Converter. It's their Heavy Duty line with standard stall speed.
http://www.gopnh.com/GM-Heavy-Duty-Torque-Converters.cfm

Oh yeah, I could totally help the launch with power braking, but since I hadn't power braked in any of the previous videos I didn't want to do that to keep the comparison apples-to-apples (scientific process, you know ). I rarely power brake it, but about a month ago I decided to try it - I was able to get it up to 8psi of boost, which surprised me. What surprised me even more was when I let off the brake and floored the gas, both tires lit up for about 20 feet! At first I thought that was really cool , then I remembered I had my winter tires on still . Once I get everything sorted the way I want it I'll do some power brake launches to see what it will do all out. Also I do still intend to take it to the local drag strip and I will certainly be leaving the line boosted there. My dream is to be able to run in the 14s with this in the 1/4 mile.....

 

[n8in8or]

I see in the video your torque converter is stalling around 1.8k........the vid on the boost level & egt's is somewhat blurred what #'s & what rpm does the turbo lite up?

I'm sorry I neglected to answer when the turbo lights. I don't really know how to answer that honestly. I'm not sure how to accurately test and judge that. It's always started making boost for me right away and if my converter is stalling at 1800-ish is that 2000 rpm? Is a better test for me to be in a higher gear and low speed and try to see when it hits? And when is "lighting", is that when it makes any boost or is it when the boost really ramps up? I noticed in the boost video I took today that once the boost hit 10psi it really took off. So I thought well maybe that's when it lit. But then when I looked at the same time that happened compared to the same time stamp in the speedometer video it was at 3000rpm. So I don't think that's it. I think that is when it was struggling to clear all the fuel and smoke and then really took off when it did that. Am I over thinking this? Sorry, I want to answer you, I just don't know how.

Nice. What TC do you have and what is your truck weight?

Can you help the launch with power braking? Acceleration is nice and smooth above 10 mph.

Your "...after 10mph..." comment got me thinking, so I went back to the last 0-60 video I did before the Moose pump. I looked at the time when I hit 10mph and it was close to a 7 second 10-60 run. This video it was more like 5 seconds from 10-60. That's what it feels like too, once it's rolling it moves, I just need to get that initial hit cleaned up.

 

[Husker6.5]

Yeah, it waits for boost to build before pouring on the fuel when you stomp on it. Makes sense!

 

[n8in8or]

Yeah, it waits for boost to build before pouring on the fuel when you stomp on it. Makes sense!

 

[FellowTraveler]

I'm sorry I neglected to answer when the turbo lights. I don't really know how to answer that honestly. I'm not sure how to accurately test and judge that. It's always started making boost for me right away and if my converter is stalling at 1800-ish is that 2000 rpm? Is a better test for me to be in a higher gear and low speed and try to see when it hits? And when is "lighting", is that when it makes any boost or is it when the boost really ramps up? I noticed in the boost video I took today that once the boost hit 10psi it really took off. So I thought well maybe that's when it lit. But then when I looked at the same time that happened compared to the same time stamp in the speedometer video it was at 3000rpm. So I don't think that's it. I think that is when it was struggling to clear all the fuel and smoke and then really took off when it did that. Am I over thinking this? Sorry, I want to answer you, I just don't know how.



Your "...after 10mph..." comment got me thinking, so I went back to the last 0-60 video I did before the Moose pump. I looked at the time when I hit 10mph and it was close to a 7 second 10-60 run. This video it was more like 5 seconds from 10-60. That's what it feels like too, once it's rolling it moves, I just need to get that initial hit cleaned up.

Actually, counting when the vehicle actually moves to whatever speed is most accurate.
Lighting is anything over "0" on your boost gauge.
I looked a few time's @ rpm as your vehicle started to move looked to be 1.8k rpm's a heavier vehicle it would stall higher then that.
Check how much boost your running while laying down that cloud, aside that fuel reducer part I suspect if you run a large t4 spool valve you'll have more air down low so you can use the fuel, then there is the expensive option "compounds."

 

[n8in8or]

Actually, counting when the vehicle actually moves to whatever speed is most accurate.
Lighting is anything over "0" on your boost gauge.
I looked a few time's @ rpm as your vehicle started to move looked to be 1.8k rpm's a heavier vehicle it would stall higher then that.
Check how much boost your running while laying down that cloud, aside that fuel reducer part I suspect if you run a large t4 spool valve you'll have more air down low so you can use the fuel, then there is the expensive option "compounds."

Ok. I'll see what I can report back.