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Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4RnrRick] #611566 07/11/05 03:05 PM
Joined: May 2002
Posts: 660
dragr1 Offline
Rock Warrior
This is absolutely the most impressive writeup I have seen on 4x4wire. I hope to see some daylight pics and video real soon!


1985 Toyota 4Runner, dual e-lockers, exo and more

2007 Toyota Tacoma Crewcab TRD 4x4

2000 Suburban 2500 4x4

1991 Tiffin Allegro Class A MHome (Ole Krusty)
Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: dragr1] #611567 07/11/05 04:47 PM
Joined: May 2002
Posts: 259
4
4RnrRick Offline OP
Mudrunner
Well I finally got around to cleaning up and looming the wires.

[Linked Image]

I also got the computer mounted.

[Linked Image]

And I was able to wire up most of my accessories. but still need to loom a couple more wires in the driver side kick panel and drive side fender.

[Linked Image]



So far I have put about 70 miles on this engine. Power is great at lower speeds. Maintaning 65-70 mph on the freeway the throttle is only open 15-20% in 5th gear. Before with the 22RE it would be 80-85% WOT in 4th gear. But over 75mph the engine feels sluggish - Sure thats faster than I should be going but I'm just trying to find all the quirks and bugs in the engine.

One think I did notice when I was timing the engine, I would short the computer and the timing wouldn't change. So I ned to look into that more...

Also the water temp gauge is constantly cycling going up and down. I didn't replace the thermostat, but I think I should with one that is a bit cooler than stock. and on top of that I keep blowing my 25A fuse for my electric fan, so I need to bump that up a size.

Also for some reason my death wobble is now worse than before! So I've got a couple new Irok's coming for the front axle but unfortionately they're out about a month.....


Project Quasimodo
'85 Xtra Cab (2wd, 22RTE, Auto => 4wd, 3RZ, w56, 2.28x4.70)

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4RnrRick] #611568 07/11/05 07:11 PM
Joined: Nov 2002
Posts: 1,921
4
4xGeek Offline
Body Damage is Cool

Re: the coolant temp flux... Maybe you need to burp her? Just a thought... <img src="/forums/images/graemlins/cheers.gif" alt="" />


4xGeek (Chris)
'97 T-100 4wd sr5-suto, 3" BL, 1.5" BJ spacers, 35" ProComp AT's, 4.88's, Bilsteins x 6, etc...

No longer stuck in SoCal!! smile
Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4xGeek] #611569 07/11/05 09:02 PM
Joined: May 2002
Posts: 259
4
4RnrRick Offline OP
Mudrunner
COMPARISON PERFORMANCE TEST RESULTS!

The baseline tests where done right before I pulled the 22RE out of the 4runner 4500 lbs +/- 10 lbs with an empty gas tank, built 22RE, W56, Dual cases, 1/4" thick drivelines, 5.29 gears, 36" Bias ply IROKS at 15 psi.

I have not weighed the 4runner after the swap (I'm expecting it weighs 80 lbs more due to the engine) and I now have a 1/2 tank of gas (another 50 lbs). Also I have two slow leaks in the Iroks probably due to crap in the bead, So the tire pressure is lower than before.

You won't believe some of these numbers.... Also keep in mind that I timed these myself with a the second hand on my watch. So they are not very accurate but the do show a very impressive increase in performance!

Test #1
0-40 MPH on flat ground
[color:"blue"]22RE - 10.5[/color] seconds average (2 runs)
[color:"red"]7MGE - 7.5[/color] seconds averaage (2 runs) {40% increase}

Test #2
0-60 MPH on flat ground
[color:"blue"]22RE - 23[/color] seconds average (3 runs)
[color:"red"]7MGE - 13.5[/color] seconds average (2 runs) {70% increase}

Test #3
Hillside Drive - mild hill close to the house
[color:"blue"]22RE[/color] - Top speed at crest was [color:"blue"]48 MPH [/color]in 3rd gear
[color:"red"]7MGE[/color] - Top speed at crest was [color:"red"]57 MPH [/color]in 3rd gear {19% increase}

Test #4
Sunset Drive - really steep hill close to the house
[color:"blue"]22RE[/color] - Top speed at crest was [color:"blue"]31 MPH [/color]in 2nd gear
[color:"red"]7MGE[/color] - Top speed at crest was [color:"red"]47+ MPH [/color]in 3rd gear* {52%+ increase}
* = I had to let off the gas on one corner of this hill because I was going too fast and actually started to power slide on dry pavement!


Also something to note is that my death wobble is worse now after the swap which is probably scuffing some speed off the results with the 7MGE.

Last edited by 4RnrRick; 07/11/05 09:04 PM.

Project Quasimodo
'85 Xtra Cab (2wd, 22RTE, Auto => 4wd, 3RZ, w56, 2.28x4.70)

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4xGeek] #611570 07/12/05 07:05 AM
Joined: May 2002
Posts: 259
4
4RnrRick Offline OP
Mudrunner
And heres some final dimensions.

Ground to the bottom of the front crossmember.
22RE - 25"
7M-GE - 25"

Ground to the bottom of tranny bellhousing.
22RE - 23"
7M-GE - 24"

Ground to the bottom of the oil pan.
22RE - 20 1/2""
7M-GE - 23 1/4"

Ground to the bottom of Sky's Crossmember.
22RE - 19 3/4"
7M-GE - 20 1/2"

Ground to bottom of Transfer Case Parking Brake Mount.
22RE - 22 1/2"
7M-GE - 22 7/8"


Well these dimensions puzzled me at first because there is no way I gained that much clearance under the rig with the same amount of drive train lift as before. Until I remembered I didn't check the air pressure in my tires on the previous measurement... So these dims are much harder to intepret than by first glance. Basically the pan on the 7M doesn't hang down as far as the one on the 22RE and the 7m appears to be mounted on the frame rails higher since these more clearance under the bellhousing.


Project Quasimodo
'85 Xtra Cab (2wd, 22RTE, Auto => 4wd, 3RZ, w56, 2.28x4.70)

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4RnrRick] #611571 07/12/05 09:10 PM
Joined: May 2002
Posts: 259
4
4RnrRick Offline OP
Mudrunner
Also I was able to borrow a nice digital timing light with a built in tach. I adjusted the POT switch I wired into the M- and M+ terminals on theback of the tach to match at 4000 rpm... then when I check it back at idle, it was 400 rpm off! actualy RPM was 750 and the tach said 1150 RPM ARGH..... So thats a big no go. Guess I'm just going to swap a V6 SR5 cluster in there and be done with it! Anybody got one for cheap.....


Project Quasimodo
'85 Xtra Cab (2wd, 22RTE, Auto => 4wd, 3RZ, w56, 2.28x4.70)

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4RnrRick] #611572 07/13/05 12:30 AM
Anonymous
Unregistered
.

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap #611573 07/13/05 04:14 PM
Joined: May 2002
Posts: 259
4
4RnrRick Offline OP
Mudrunner
If you guys remember correctly, the 4Runner weighed 4500 lbs +/- 10 lbs with me in the driver seat and a emtpy tank of gas. Well I just weighed the 4runner at the same conditions..... me in the driver seat and an empty tank of gas....Its still 4500 lbs +/- 10 lbs. The only thing that is not installed on the 4runner is that during the conversion was my new OBA and I removed the AC during the conversion. So I would have to say that a 7m swap will only gain you 30 lbs.......


Also for the first tank of gas I was pretty hard on fuel consumption with my new found power! I got 12.7 MPG which is basically right where I was at before with normal driving of the 22RE! So I'm expecting better mileage on the next tank.


Project Quasimodo
'85 Xtra Cab (2wd, 22RTE, Auto => 4wd, 3RZ, w56, 2.28x4.70)

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4RnrRick] #611574 07/14/05 06:01 PM
Joined: May 2002
Posts: 259
4
4RnrRick Offline OP
Mudrunner
Yesterday, I finally got a compression tester extension so I could do the comp. test on the 7M. See with these Heads, you need one of these extensions because the spark plug hole is impossible to get down into to tighten the tester into.

[Linked Image]

Results:
145, 145, 145, 140, 142, 145

I don't think I've ever seen a motor that consistant.... and I am actually amazed that this was a junk yard motor with a blown head gasket!

As for the spark plugs, they are running lean to me. So I will have to probably tweak with the mixture using the AFM. These are OEM spec NGK plugs have around 150 miles on them.

[Linked Image]


Project Quasimodo
'85 Xtra Cab (2wd, 22RTE, Auto => 4wd, 3RZ, w56, 2.28x4.70)

Re: 4RnrRick is getting a 7M-GE / 7MGE Motor swap [Re: 4RnrRick] #611575 07/19/05 11:42 PM
Joined: Mar 2003
Posts: 32
kens Offline
Getting the Wheeling Fever
Great Job!!! What a write up! I keep kicking myself - I was talking to Rob to do the install for me. I came up short on funds (man I was close) and had to go with a stock setup - Life in the slow lane for me. Again, congrads and what a great write up!

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