New Build HCI and New Forged Bottom End--Pic Heavy

[oldbones]

My 2012 Coyote Build

​

I'll try to detail my build a little bit on here and add key points to the post.

Previous mods, track times and dyno numbers.

1. At AED's dyno in CA the car put down 466RWHP on 91 Oct. But I normally run the car on E85 and now have a better flowing exhaust, so I would think the car is closer to 485 RWHP now.
2. I live in the mountains and race in 6000-8000 DA, so my track times are significantly different than the Maryland boys. It has been a best of 12.2 at 117 on motor with a 1.7 sixty foot and a best of 11.5 ET and MPH of 125.4 on spray. To put this into context, a stock S197 Coyote at my track will typically run a 13.7 at 106 mph.
3. The mods at the time were CJ intake, pypes/speedmaster headers, baby CJ cams, mono blade, AED tune and a 100 shot.

 

[oldbones]

The New Build ​

The new build add the following items: L&M intake Cams, forged short block, ported cylinder heads by Slawko and a bigger nirtous bottle.

Here are some of the parts that are and have gone into the build.

1. Mahle Pistons

2. Boss crank

3. Boundary OPG

4. New Ford Block

5. New Bigger Nitrous Setup

6. The Assembled Short Block Next to the Stock Short Block

 

[oldbones]

Tear Down Pictures
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Tear down

 

[oldbones]

Heads off to Slawko Racing today--the head porter.

 

[oldbones]

Interesting teardown observation
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See how the carbon is only in the centers of the pistons on the passenger side of the motor.

This is because this side of the engine either gets less nitrous or more fuel.

Now, here is the carbon from the driver side of the engine, notice how the carbon extends to the outer edge of the piston. This means that this bank sees less fuel or more nitrous. I adjust my nitrous fuel jetting on from 02 readings on the driver side of the motor.

Note:
I'm not sure if this is because my fuel pump is struggling or if the design of the nitrous plate system is to blame, but this is what a 5% bank to bank variance looks like.

There is definitely an uneven bank to bank distribution of fuel that I need to investigate. My fuel pump did just die before I tore the car down.

Here is a nitrous pull datalog from the driver side of the engine. I have my kit setup to hit with fuel prior to nitrous.

 

[coolwater28]

Nice thread. Keep us posted on the new build!!!!

 

[oldbones]

Here is my sheet with my compression calculations.

 

[bottle fed 14]

You need to have your intake plumbed direct port it's a lot better than the plate

 

[SNIPER]

NICE Built! I'll keep a check on this!

 

[corysmach1]

Nice! Does Slawko have any flow numbers on there heads and prices? Looks like a good build.

 

[CobraBob]

That's definitely a nice build in the works. Looking forward to see your new numbers when it's complete.

 

[oldbones]

You need to have your intake plumbed direct port it's a lot better than the plate

I would love to have a direct port, but I plan on going to boost someday and ditching the nitrous setup. I really don't like the distribution issue that the plate causes. As you can see in the pictures, one bank is rich and the other leaner.

 

[oldbones]

Corysmach1,

Here,

Google what the guys on yellowbullet have to say about Slawko.

Full 5-axis CNC porting $1,300
Competition valve job $350
Dis-assembly, cleaning, and reassembly (NOT including re-installation of camshafts) $200
Assembly only $100
Replace all seats to accommodate oversized valves $800
Replace and hone new bronze intake guides $240.00
Replace and hone new bronze intake & exhaust guides $480.00
Lower intake manifold porting $900
Resurface Heads $75.00

 

[oldbones]

That's definitely a nice build in the works. Looking forward to see your new numbers when it's complete.

Thanks, she's only been torn down a month and I'm excite that she'll be running again soonish!!

 

[gt5.0coyote]

Nice build! I'm sure gonna be following it!!

 

[GNBRETT]

awesome build subd......

 

[gimmie11s]

Damn. I need to get into the head rebuilding business.

Build looks amazing and congrats for taking a different direction!

This will be a fun car to drive with ridiculous throttle resposne.

 

[bottle fed 14]

I would love to have a direct port, but I plan on going to boost someday and ditching the nitrous setup. I really don't like the distribution issue that the plate causes. As you can see in the pictures, one bank is rich and the other leaner.

I was feeling the same way till I got my direct port I

 

[bottle fed 14]

With the extra power you will have from the motor it will be a lot more fun1500 dollars to plumb intake I bet it would run a number my 150 shot pulls hard

 

[corysmach1]

Corysmach1,

Here,

Google what the guys on yellowbullet have to say about Slawko.

Full 5-axis CNC porting $1,300
Competition valve job $350
Dis-assembly, cleaning, and reassembly (NOT including re-installation of camshafts) $200
Assembly only $100
Replace all seats to accommodate oversized valves $800
Replace and hone new bronze intake guides $240.00
Replace and hone new bronze intake & exhaust guides $480.00
Lower intake manifold porting $900
Resurface Heads $75.00

Very solid flow numbers. Real close to JPC stage 3 ported heads.