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Old 03-02-2014, 12:36 PM   #1
curtisreinke's Avatar
Join Date: Dec 2013
Location: Dahlonega, GA
Posts: 60
Could not be happier with my little yellow YJ

I am dropping an HEI distributor in to day so I guess it's true that no matter how good they run there is always something else we want to do to them.

My plugs had been in for a very long time and I had a few minutes Thursday evening so I put in a set of Autolite 985's. The old plugs were all that nice brownish gray color and every one of them looked pretty much the same which is always a good thing. I set them at .035" and could tell a difference in the idle right away.

Yesterday I went up to Dahalonega to see Mom and other than when I made 2 interchanges, I20 to I285, and I285 to GA 400, from the time I got on I20 until the controlled access ended near Dawsonville I never shifted out of 5th gear. I kept my 4.2 roughly between 1500-2100 RPM and there are a lot of hills between here and there. Now coming back I did have to grab 4th about 2/3 of the way up Six Flags hill.

According to my GPS my moving average stayed within a couple of points either side of 65 and my max speed was 78 which is a personal record for me. I usually stay under 70 but I had a nice long stretch of new pavement that wouldn't beat the crap out of me and was shooting for 80 but wimped out when I thought I was going to loose the door tops.

I am going to make the same trip next weekend after I have the HEI and MC2150 installed. I am also going to take 0III0forlife's advice and pull the shift boot to see if I have a clearance issue with 2, 4, and reverse due to the 2" body lift causing it to occasionally come out of 4th and reverse especially when it is cold. When I move to Mom's house I will have a really nice 3 sided shed where I can work on my baby out of the weather.

Well after all this rambling there is actually a question here. As it sits now my CTO has nothing connected to it and the EGR is just sitting there. Is there any advantage to re-connecting the EGR when I install the MC2150? The fuel vapor canister is still there but is no longer connected to the CTO.

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Old 03-02-2014, 01:29 PM   #2
0III0forlife's Avatar
Join Date: Mar 2012
Location: Ridgway, Pa.
Posts: 4,364
If you are doing an MC2150 and a HEI, then you don't need any of those smog items.

You will be taking the motor back to a naturally aspirated, pure spark, fire breathing dragon. Like it was originally designed to be. Mine doesn't have any of that smog or sensor crap hooked up to it at all.

The HEI will require 8mm or larger plug wires, and your autolites re-gapped to .050.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...
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