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Underbody braces, turbos and more!

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PostPosted: Sat Sep 26, 2015 2:12 am 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
im doing a swap from a 1989 suzuki swift GTI to a 1991 firefly, the rear motor mount and the front motor mount line up but the driver side transmition mount is off by a little bit on the frame, what would be the best way of going about it? the firefly is a 3 cyl throttle body injected frame, gti is a 4 cyl dohc efi frame.

here some photos of the swap so far.
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Donor car 1989 swift GTI
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reciever car 1991 firefly
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Last edited by Blink Ryba on Wed Sep 30, 2015 10:09 pm, edited 1 time in total.

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PostPosted: Sat Sep 26, 2015 1:43 pm 
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Joined: Mon Dec 01, 2003 12:47 pm
Posts: 11657
Location: columbus, ohio
the driver's side mount will be off by 2".

i use a length of flat cold rolled steel, about 7" long and 1 1/2" wide with 3 clearance holes for the m14 bolts/ studs on the mount drilled at 2 1/16" centers. use that to offset the mount by setting one stud into the flat stock, one stud through the flat stock and the gt mounting bracket, and use a bolt through the third hole on the flat stock into the bracket.

Image

that will give you the offset you need without doing a lot of fabrication work. :wink:

_________________
1991 Blue Geo Metro Convertible highly modified 1.0L Turbo3 5 spd. - 1991 Red Geo Metro Convertible customized with a Twincam 5 spd.

My Turbo3 Project
My Cardomain Page -Ol' Blue
My YouTube Channel
My Photo Gallery
SAAB Sonett II


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PostPosted: Wed Sep 30, 2015 2:54 pm 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
tried out that mount method and it works, just gotta finnish it, do some wiring and she might be driving soon,
Image
Image

i got reported for having disassembled/unplated vehicles on my property so had to move them and make room in the garage so property inspector is satisfied and i dont get fined haha. mom helped out since i was alone with no help.
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ill post more pics in the future for a buildup to the finnished product. and ill get more photos of the car cause i dont think there is enough haha.

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
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PostPosted: Thu Oct 01, 2015 10:52 am 
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Joined: Thu Jul 20, 2006 7:17 pm
Posts: 1378
Location: Alberta, Canada
Do you move the mount perch on the passenger front corner? I did one gt swap and had to cut that mount off the gt body and weld it to the 3cyl body. It sits about an inch further forward. Looks similar upon first glance but I was sure it wouldn't work with the gt engine and 3cyl mount?
Curious if at Wally doesn't need to be done.

_________________
1995 Swift w/16V 4.39s, 3tech cam, Esteem t-body, Header, needs more.
1995 Gt Mustang "Boss Shinoda" package.
1999 F150 4x4 Supercharged
1967 Mustang 428 auto, never ending expensive project
1993 Civic si h22a, fell in my lap, couldn't resist!


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PostPosted: Thu Oct 01, 2015 2:35 pm 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
The passenger and rear mount bolted up for me, you are using the gt/gti motor mounts on the engine right? The driver side is what is pushed back (left hand drive car) as ragtop said itl be two inches back on the frame for the 3cyl and what he posted does work! I tried it and it ended up working nicely

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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PostPosted: Thu Oct 01, 2015 2:54 pm 
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Joined: Thu Jul 20, 2006 7:17 pm
Posts: 1378
Location: Alberta, Canada
I was referring to the front mount, pass side. By the timing cover. I'm surprised that it bolts up, the 4cyl one was about 2" forward on the gt vs the 3cyl shell I used.

_________________
1995 Swift w/16V 4.39s, 3tech cam, Esteem t-body, Header, needs more.
1995 Gt Mustang "Boss Shinoda" package.
1999 F150 4x4 Supercharged
1967 Mustang 428 auto, never ending expensive project
1993 Civic si h22a, fell in my lap, couldn't resist!


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PostPosted: Thu Oct 01, 2015 2:57 pm 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
What year of cars were you using? Mine was an 89 gti motor going into a 91 firefly 3cyl, the rear and passenger mount was the same for me never had an issue.

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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PostPosted: Thu Oct 01, 2015 4:06 pm 
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Joined: Mon Dec 01, 2003 12:47 pm
Posts: 11657
Location: columbus, ohio
i've done a dozen engine swaps, twincam and turbo3, into verts and the only ones that had issues with the right side mount were automatics.

i've used the flat strap technique on all the twincam swaps and it works great. years ago the guys who were doing twncam swaps were removing a layer of steel over the inner fender from the engine bay side to uncover the mounting holes positioned for the g13 engine but that seemed like too much fabrication work to me.

i have also done swaps where i drilled a hole from the outside of the left frame rail to run a nut onto the through bolt for the mount. then i used an electrical box plug to close the hole in the frame rail. even that is more work than using the strap on the transmission mount.

one other thing, a bonus when you use the strap technique, is that it changes the lever arm at that side which helps to stabilize the power unit even more that the oem fitment. that reduces wheel hop when the tires spin. :wink:

_________________
1991 Blue Geo Metro Convertible highly modified 1.0L Turbo3 5 spd. - 1991 Red Geo Metro Convertible customized with a Twincam 5 spd.

My Turbo3 Project
My Cardomain Page -Ol' Blue
My YouTube Channel
My Photo Gallery
SAAB Sonett II


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PostPosted: Fri Oct 02, 2015 1:09 am 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
found a video of the motor running for the first time in the 89 swift GTI before pulling it way later on.

https://www.facebook.com/KevinPuhl/videos/10153165476048857/?pnref=story

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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PostPosted: Fri Oct 02, 2015 9:45 am 
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Joined: Thu Jul 20, 2006 7:17 pm
Posts: 1378
Location: Alberta, Canada
Indeed t3 nailed it, the one I did was automatic. The other I was involved in was a t3 in and auto vert she'll and he ran into the same thing. Good to know for a fact from your post, for some reason I had it in my head that it was a 4cyl/3cyl difference, when it's an auto to manual difference in the body. Thanks for the follow up detail and clarification.

_________________
1995 Swift w/16V 4.39s, 3tech cam, Esteem t-body, Header, needs more.
1995 Gt Mustang "Boss Shinoda" package.
1999 F150 4x4 Supercharged
1967 Mustang 428 auto, never ending expensive project
1993 Civic si h22a, fell in my lap, couldn't resist!


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PostPosted: Sun Oct 04, 2015 1:32 am 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
ive never tinkered with an auto frame yet, good to know what the differences are for future swaps!

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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PostPosted: Tue Jun 28, 2016 4:01 pm 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
Finally started working a bit found out why the engine won't run, got a couple diodes that died in my ECu, f3 ECu dead and getting fixed hopefully need to find a schematic the one zed diode (unsure if that's what they are called) are labeled as d1

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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PostPosted: Tue Jul 26, 2016 11:59 am 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
Replaced the diodes and checked all plugs, fired right up a bit lean might have to change the O2 sensor but she finaly runs on its own fuel for the first time! I've never owned this motor and had it run on its own gas before so I'm happy

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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PostPosted: Thu Oct 06, 2016 11:18 pm 
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Joined: Sat Sep 26, 2015 1:33 am
Posts: 23
Location: saskatoon, Saskatchewan, Canada
Once I move into my new place I might do a more descriptive reply, it's been a while but a short update, been driving this car as my daily to get to work and back, first snowfall in saskatoon Saskatchewan was yesterday and was scary with the summer tires, going to park this bad boy and pull out my bass vehiclr as its rusty and it's been hit a million times and would rather have someone slide into that one than my gti :)

_________________
1991 firefly GTI
g13b swap
Image

1997 geo metro
1.0L
built for bass
Image


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