High Altitude High Compression Build

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Oct 7, 2014 | 01:32 PM

#16

rock2610d

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Fleet Mechanic

Joined: Mar 2013

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From: Wyoming

Right. 11:1 would require higher octane fuel at elevations below 2000 ft or so. I do not tow with my Excursion. If I did however I would probably use 91 octane just to be safe. Towing at low elevations would require a octane of 96 or better I bet.

Just FYI at my elevation 85 octane gas is available and is what most people put in their vehicles. All due to lower density air up here. My Ecoboost F150 though only gets 91 octane. The highest available up here.

Oct 8, 2014 | 05:06 AM

#17

Im50fast

Cargo Master

Joined: Apr 2013

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From: Central Florida

Intercooler isn't required at low boost. I forget the recommendation but I feel like it's about 6 or 8psi when you must get an intercooler.

That lowers your $ (and lots of induction tubing/struggles/blood/sweat/tears... )

Oct 8, 2014 | 09:10 AM

#18

toddb1

Mountain Pass

Joined: May 2009

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Quote:

Originally Posted by rock2610d

Are you saying a 5.4 SC kit will have the right brackets to fit a V10? Getting interesting ! How do you control boost? I would want boost at low RPMs and extra blown off at higher RPMs.

No but I made one fit. The kit I found was for a 3v, I have a 2. They are close but the heads have different bolt patterns, I made a block to adapt it and clock the supercharger down more since it would have hit the hood. I just use prochargers bov, it closes at close to 0" of vac and releases the pressure when the throttle is closed. I don't get boost until a bit over 3000 rpm, but it's like having 5000rpm of NA air pushed into the motor at that point. You can pulley it up more and use a wastegate to regulate. A turbo would be best to give low rpm boost since it's load sensitive.

The intercooler makes it easier to plumb actually. I would do a 7.3 version, the 6.0l is overkill and the outlet is 3.25". I did it because I tow, if you get the supercharger heat soaked the tune will kill the timing and you'll loose a fair amount of power.

On the high compression build, without cams you're just compressing what little oxygen deprived air was let it. For more bang you need more in there, cams or forced induction are you're options.

Oct 9, 2014 | 09:10 AM

#19

rock2610d

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From: Wyoming

Decided to go forced induction.

Twin Mitisibishi S16G turbos. I already have one left over from my 95 mitisibishi build.

Each one will flow 29 lbs/min at 5500 rpm and 9psi. I will set wastegate at 8 psi. Should have 5.5psi at 2250 rpm. Won't run the water lines to turbos, oil in and out only.

7.3 liter diesel intercooler, and single BOV. Should be able to swap sides on exhaust manifolds and fabricate from there.

MAF sensor will be tough with dual turbos! But I have done it before.

Oct 10, 2014 | 05:23 AM

#20

Im50fast

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Joined: Apr 2013

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From: Central Florida

Quote:

Originally Posted by rock2610d

Here we go again.... Another guy claiming he'll build a twin turbo V10....

friendly skepticism..

Seriously my friend if you actually do this please keep us posted. Any of us on the V10 forum have seen a couple guys claim this every year and then we never hear back from him.

Oct 10, 2014 | 07:49 AM

#21

rock2610d

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From: Wyoming

Yah, I know! Twins are difficult. Not a lot of room on passenger side. Will have to relocate battery and vacuum stuff.

Easiest option is an Aerocharger, no oil plumbing to deal with, and it has internal boost control so no BOV or waste gates needed.

I may go this route, and only use one instead of two. Their largest unit can only flow 540 CFM so at 4500 rpm it starts to get inefficient. But it supports 375 hp which is perfect for me.

My main assumption is if exhaust manifolds will swap from left to right? If not project I dead before it starts.

Oct 13, 2014 | 08:55 AM

#22

toddb1

Mountain Pass

Joined: May 2009

Posts: 127

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you can't swap them, diagonal bolt pattern. Use a BA5000 slot maf and you'll be fine. I was going to do a block manifold on the drivers side, combine the pass to it then up to a single 67mm. Then I found the procharger and scrapped the project.

Oct 13, 2014 | 10:04 AM

#23

rock2610d

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From: Wyoming

Well, twin turbos are out. Single Turbo is out. Centrifugal is out.

Bought a Kenne Bell V10 Kit.

Its used and does not have injectors, FMU, installation manual or ECU with it but I could not pass it up.

Came with blower, manifold adapter, all brackets, throttle body, intake tube, pulleys, belt, alternator pulley, boost a pump, and all needed parts to install.

Anyone know where to get a installation manual? I am sure its missing a some small items and I will have to try to get them from Kenne Bell. But the Manual will tell me how to install and the parts I will need to complete the kit.

I hope Kenne Bell will still tune my ECU.