I'm doing everything that "doesn't work"
#42
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Joined: Jun 2009
Posts: 339
Likes: 0
From: League City, Tx
Haha, ok. They are 370CI with forged bottom ends and CNC ported heads, super alloy intake and inconnel exhaust valves. We are using the Holley hi-ram intake with our own intercooler that mounts between the upper and lower plenums. The turbos are internally gatted, and of course water jacketed. They build boost just off of idel just like supercharged motors. With regard to power output, they produce just under 900HP @ 6200 RPM on 87 octane. Not to bad considerng my target was only 800 for this set up.
This is the entry level motor out of a three motor offering that are rated at 800, 1100, and 1300HP.
This is the entry level motor out of a three motor offering that are rated at 800, 1100, and 1300HP.
more pictures ?
What are you doing for the raw water cooling?
What are you tuning them with? OLSD, CLSD, MAF ?
#43
Registered

Joined: Jul 2007
Posts: 3,648
Likes: 32
From: Oneida Lake NY
5 on my lake alone, no issues. In fact......no drive issues and great speed/handling
40 fountain
40 fountain
38 fountain
33 fountain
33 fountain
Other arneson boats in my group, or that I have seen ran with in the area. Most are friends.
47 sandler trip asd8
388 hustler asd7
388 hustler asd7
38 cig TG asd7
32 skater asd7
38 scarab asd7
Every one of them will tell you it is the best move they have ever made. The only one that has had handling issues is the 32 skater, and he seems to ignore Rik's advice.
I keep getting asked why my boat doesn't have a rooster tail, I'm next
40 fountain
40 fountain
38 fountain
33 fountain
33 fountain
Other arneson boats in my group, or that I have seen ran with in the area. Most are friends.
47 sandler trip asd8
388 hustler asd7
388 hustler asd7
38 cig TG asd7
32 skater asd7
38 scarab asd7
Every one of them will tell you it is the best move they have ever made. The only one that has had handling issues is the 32 skater, and he seems to ignore Rik's advice.
I keep getting asked why my boat doesn't have a rooster tail, I'm next
Last edited by 4bus; 04-04-2014 at 01:53 PM.
#45
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Joined: Jan 2009
Posts: 1,054
Likes: 24
From: Omaha, nebraska
now this is awesome I will be following this build. there are allot of people set in their ways and beliefs on this site that are not open to trying new things and think that there is only 1 way to do anything on a boat and they will bash you for suggesting anything else. looking forward to seeing where this goes!
#46
Thread Starter
Registered

Joined: Nov 2008
Posts: 595
Likes: 97
From: Hudson, IL
I have been very impressed with Holley's EFI offering and after becoming master certified it really wasn't even a decision. Their ECM will do the job of that everyone else's will do with out the extra piggie-backs I would require for this set up. With regard to your other question, I see no reason not to run closed loop. This way I can run different altitudes and fuels without having to give the computer any input. They literally tune themselves in less than 90 seconds.
#49
Thread Starter
Registered

Joined: Nov 2008
Posts: 595
Likes: 97
From: Hudson, IL
UPDATE: 6/13/2014
Well unfortunately I have to slide these motors to the back shelf for a few months. This is due to the turbo parts manufacturer inability to supply the parts that are needed to build the second motor. So I have opted to drop in a couple of big blocks for the summer to get on the water. The plus side of this is I will have something to compare the performance of the boat with conventional BBC power vs LS engines when I can get the parts and get them in the boat.
Here is what I'm putting in for right now. They are 468ci gen V blocks with forged lower ends, Merlin heads, and TBS 250 blowers.

They were advertised as 720HP motors but actually only make 686HP (go figure). For comparison sake I compared the LS dyno graph with the graph of the 468 and this is what the difference looks like. The LS torque and HP are in the red and the BBC is black.
Well unfortunately I have to slide these motors to the back shelf for a few months. This is due to the turbo parts manufacturer inability to supply the parts that are needed to build the second motor. So I have opted to drop in a couple of big blocks for the summer to get on the water. The plus side of this is I will have something to compare the performance of the boat with conventional BBC power vs LS engines when I can get the parts and get them in the boat.
Here is what I'm putting in for right now. They are 468ci gen V blocks with forged lower ends, Merlin heads, and TBS 250 blowers.

They were advertised as 720HP motors but actually only make 686HP (go figure). For comparison sake I compared the LS dyno graph with the graph of the 468 and this is what the difference looks like. The LS torque and HP are in the red and the BBC is black.
Last edited by Precision; 06-13-2014 at 02:06 PM.
#50
Registered

Joined: May 2012
Posts: 1,541
Likes: 219
From: MI
UPDATE: 6/13/2014
Well unfortunately I have to slide these motors to the back shelf for a few months. This is due to the turbo parts manufacturer inability to supply the parts that are needed to build the second motor. So I have opted to drop in a couple of big blocks for the summer to get on the water. The plus side of this is I will have something to compare the performance of the boat with conventional BBC power vs LS engines when I can get the parts and get them in the boat.
Here is what I'm putting in for right now. They are 468ci gen V blocks with forged lower ends, Merlin heads, and TBS 250 blowers.

They were advertised as 720HP motors but actually only make 686HP (go figure). For comparison sake I compared the LS dyno graph with the graph of the 468 and this is what the difference looks like. The LS torque and HP are in the red and the BBC is black.

Well unfortunately I have to slide these motors to the back shelf for a few months. This is due to the turbo parts manufacturer inability to supply the parts that are needed to build the second motor. So I have opted to drop in a couple of big blocks for the summer to get on the water. The plus side of this is I will have something to compare the performance of the boat with conventional BBC power vs LS engines when I can get the parts and get them in the boat.
Here is what I'm putting in for right now. They are 468ci gen V blocks with forged lower ends, Merlin heads, and TBS 250 blowers.

They were advertised as 720HP motors but actually only make 686HP (go figure). For comparison sake I compared the LS dyno graph with the graph of the 468 and this is what the difference looks like. The LS torque and HP are in the red and the BBC is black.





