Please review and critique My Stroker recipe

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aaronmulder
Posts: 4
Joined: September 12th, 2016, 5:27 pm
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: YJ

Please review and critique My Stroker recipe

Post by aaronmulder »

Hello, and thanks in advance for your assistance.

Last summer my son and I had a blast off-roading and we ended up in too deep of mud and hydro locked the jeep engine. Now were planning to build it "better" with a 4.6L stroker,
Stroker Build v2.xlsx
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SilverXJ
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Posts: 5789
Joined: February 14th, 2008, 7:14 am
Stroker Displacement: 4.6L
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Radford, Va

Re: Please review and critique My Stroker recipe

Post by SilverXJ »

Looks good. However you won't be running 87 octane with option #1. I would also recommend a JP Performance/ Rollmaster for the timing set. Hylift-Johnson for the lifters.
aaronmulder
Posts: 4
Joined: September 12th, 2016, 5:27 pm
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: YJ

Re: Please review and critique My Stroker recipe

Post by aaronmulder »

Thanks for the info, I found the JP timing set on ebay for $104, I'll send the other once back.

With the information entered into the calculator on the board I have the following:
SCR 10.57:1
DCR 9.07:1
Quench 0.043
Intake closing angle 55

Any issues with this running the 93 octane fuel?

THanks

Aaron
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SilverXJ
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Posts: 5789
Joined: February 14th, 2008, 7:14 am
Stroker Displacement: 4.6L
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Radford, Va

Re: Please review and critique My Stroker recipe

Post by SilverXJ »

That will be fine on 93.. you might even get by on mid grade.
aaronmulder
Posts: 4
Joined: September 12th, 2016, 5:27 pm
Stroker Displacement: 4.6
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: YJ

Re: Please review and critique My Stroker recipe

Post by aaronmulder »

Hello again all,

Now that all the machine work is complete I have a final decision on the head gasket thickness that I need some help on.

0.043" gasket will give me a SCR of 9.72:1 and quench height of 0.034"
0.051" gasket will give me a SCR of 9.57:1 and quench height of 0.042"

Which gasket would you choose and why? My goal is to have a engine that runs on pump gas.

Thanks

Aaron
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SilverXJ
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Posts: 5789
Joined: February 14th, 2008, 7:14 am
Stroker Displacement: 4.6L
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Radford, Va

Re: Please review and critique My Stroker recipe

Post by SilverXJ »

Go with the thinner gasket. The decreased quench distance should offset any problem with pre ignition.
Russ Pottenger
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Joined: August 15th, 2009, 1:27 am
Stroker Displacement: 4.7
Vehicle Year: 2000
Vehicle Make: Jeep
Vehicle Model: Cherokee

Re: Please review and critique My Stroker recipe

Post by Russ Pottenger »

SilverXJ wrote:Go with the thinner gasket. The decreased quench distance should offset any problem with pre ignition.
X2,

That's why I like setting up my combinations off a 9.450
Block height with a 1.385 CD piston.

Targeting a piston to be .008 out allows for variances that could be made up with the two common choices of head gaskets.

Your piston rings are on the way.

Russ
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