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J20 to sierra. (or similar)
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Author:  BlueSuzy [ Tue Sep 28, 2010 11:44 pm ]
Post subject:  J20 to sierra. (or similar)
Just researching for my lwb project.

Would it be worth it going a j20 4cyl over the Baleno g16b 4cyl to the g13 gearbox.

A couple of things have come up during looking around,
1. Same bolt pattern as the G16b?? Adaptor plate which i have here!(I made)
2. What flywheel to use? Looks like i can machine my 1.3 flywheel to suit j20 crank pattern
3. If i can, that means i can run original machined down housing starter..
4. Engine fan?
5. Clearance to the booster/steering column should be fine for RHD.
6. Sump clearance, are they reverseable or are there flatter options out there?

Alot of info is here, but US version.
http://members.cox.net/aftermarket4x4/2liter.html
Image
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Will be running 6.5 geared sierra transfer, lux/bundera diffs. I have never had any drama's with the sierra gearbox so i would like to keep it for ease of removal/less major mods.

Not for comps.
Author:  joeblow [ Tue Sep 28, 2010 11:50 pm ]
Post subject:  Re: J20 to sierra.
BlueSuzy wrote:
. I have never had any drama's with the sierra gearbox so i would like to keep it for ease of removal/less major mods.



you will now!

pattern is not the same. a vit gearbox would be extra work, but such a much nicer compliment to the engine.
Author:  BlueSuzy [ Tue Sep 28, 2010 11:52 pm ]
Post subject:  Re: J20 to sierra.
Have you had many drama's with the vitbox to sierra transfer?

People have said i will have drama's with the 1.6 on a sierra gearbox...

If anything, the bottom holes could be out alittle more. It is 20mm a side, hole centre to centre difference from g13 to g16
Author:  steak_knife [ Wed Sep 29, 2010 3:51 am ]
Post subject:  Re: J20 to sierra.
I'm thinking along the same line's, but J18, I found a g/box at a wrecker's today but thay wouldn't give me a price, it's a sv420 box.

I don't think a sierra box would last long with a 2lt in front of it, hence I was looking at adapting a G16 box to the front, but a sv420 box would just make thing's lot's easier..& give the Joeblow twin transfer to be an option.. 8)
Author:  appsie [ Wed Sep 29, 2010 9:29 pm ]
Post subject:  Re: J20 to sierra.
seeing as tho you are allready doin so much body work on this new rig anyway,may aswell go with the vit box for a bit more strength and piece of mind and mod your tunnel to suit.Sure it doesnt need to much if done right.

arent the gear ratios a fair bit higher in the vit box?thought someone mentioned that as being a problem for them anyway
Author:  joeblow [ Wed Sep 29, 2010 9:40 pm ]
Post subject:  Re: J20 to sierra.
no, the 5 speed is the same gearing.
Author:  BlueSuzy [ Wed Sep 29, 2010 10:08 pm ]
Post subject:  Re: J20 to sierra.
so same gearing, just beefier..

Going to my wreckers today to see what they have atm. :D
Author:  mr.green [ Wed Sep 29, 2010 10:39 pm ]
Post subject:  Re: J20 to sierra.
ive got the j20 in my project zook. running j20 box, vit steering box, sierra transfer j20 radiator. to say it is a close fit would be an understatement, but it is all in there without fouling each other.
the j20 uses a hydro clutch which is a bit of mucking around in itself. the bell housing pattern is the same as g16 but the bell housing depth is a lot deeper on the j20 box. no amount of mixmatching bell housings/clutch folks/throughout slides will see you using a cable clutch without making a new flywheel.
so mine is set up with the hydro clutch on a sierra pedal box. you could use the g13 box with adapters and machined flywheel but i steered away from this after reading from a guy up our way, has a j20 and g13 box and said it loved making black gear oil :? for that matter if you machined the flywheel you could use the g16 box and run a cable clutch. the hydro leaves no room for a bigger booster and is just plain fiddly but i was too tight to spend money on the flywheel :)
engine mounts where fabbed up from scratch. very time consuming to get it to sit in the right position ( booster,master cylinder. bonnet heights where all an issue. try sitting a motor in a car with no mounts and measure bonnet, firewall, diff clearances. not too much fun.
the original engine fan will never fit. my radiator is VERY close to the front of the motor and a electric fan will be put in front of a a/c condenser. not sure yet if i will have cooling dramas with the lack of room around the front of the motor for hot air to escape. the j20 rad is big.really too big for the sierra. there is no extra room between steering rack and lh chassis rail and bonnet/pitman arm and of course all mounts where a one off=more time.
extractors will have to be custom made.
the wiring on mine was good as i think it came from a 98 vit (not gv) which meant there was no transponder to worry about. my car is setup as spoa front using snake histeer and ruff which gave me room for the motor with no bodylift but you won't have a hope if your spua with no body lift unless you go remote or some getto fab sump.
that is all for now..... good looking thing once it it in there. 6 billion times more work than a g16 and have no idea how well it goes as i have never driven it over 5km/h
Author:  BlueSuzy [ Thu Sep 30, 2010 1:26 am ]
Post subject:  Re: J20 to sierra.
Well they have a g16 and a j18. There is also a full car (gtx hatch) with the j18 down the back also..Hmm tempting. I already have the seats :lol:

The sump clearance should not be much of an issue. Lifted on coils. 8)

Stolen from 'm' thread

G16B:
69kw, 138Nm
2nd coilpack Baleno

J18a:
89kw, 152Nm
GTX Baleno

It the difference worth the work to install?

The G16B is quick, But could be quicker :lol: But do i want the extra work with changing the gearbox..

p.s. I smoked a pootrol @80km/h in 4th up our hill. :lol:
Author:  steak_knife [ Thu Sep 30, 2010 1:53 am ]
Post subject:  Re: J20 to sierra. (or similar)
:roll: Hoon.. :lol:

There is a lot more horse's to be gotten out of a g16, I have seen a g16 in a vit wagon flog all comer's in off road sprint's, but he couldn't keep front diff's up to it.. :lol:
he had a ported head, after market ecu & extractor's..that's it..
Author:  BlueSuzy [ Thu Sep 30, 2010 2:02 am ]
Post subject:  Re: J20 to sierra. (or similar)
It was an 80kmh zone, just that he was doing prob 60. :lol:
Author:  steak_knife [ Thu Sep 30, 2010 2:05 am ]
Post subject:  Re: J20 to sierra. (or similar)
:P
Author:  remydog05 [ Sat Oct 09, 2010 8:15 am ]
Post subject:  Re: J20 to sierra. (or similar)
Any pics or further info on your conversion mr green??
Author:  mr.green [ Sat Oct 09, 2010 11:51 am ]
Post subject:  Re: J20 to sierra. (or similar)
further info.. yep.
if you are married, have kids, have any sort of social life, like driving or like leaving the shed. DON"T DO IT. sure if your single, have no friends, a shed full of gear, endless money supply, lots of patience and are between 25 and 60. go right ahead... oh and post pics as you go.

lets be realistic. this motor was never intended to fit into a sierra engine bay. and they don't. the are only 2 reasons i had for deciding to use a j20.
1. i'm , if i ever get it finished, am going to have a Heavy car and need a motor that can push it.
2. it was made by suzuki and in a north south layout.
thats about it. nothing else makes it any better than a 20v 4age, 3rz ect. just about everything needs to be made to fit. i'll quickly rattle off the things that i have or will have to fab to make it fit.

engine mounts...... gearbox mount..... shortened jackshaft.... transfer mounts to rectify jackshaft angle.....top and bottom radiator mounts.......clutch cylinder.......relocate heater tap to fit clutch cylinder........ transmission tunnel work...... extractors and exhaust........ power steering plumbing........wiring and vss........ efi tank mounts........


now all you teenage emos that think i'm gay for saying this out loud can toddle off and do it yourself and then come back and tell me its easy. after having this thing laying around for a couple of years and have it chew into family time and money, my opinion of what is "worth doing" is changing.
Author:  appsie [ Sat Oct 09, 2010 11:54 am ]
Post subject:  Re: J20 to sierra. (or similar)
well said jas.maybe i should give your old g16 back???? :lol:
hoprfully you get it sorted tho mate.
Author:  CairnsZook [ Sat Oct 09, 2010 12:05 pm ]
Post subject:  Re: J20 to sierra. (or similar)
steak_knife wrote:

he had a ported head, after market ecu & extractor's..that's it..


Where can I get one of these ECU's? 8)
Author:  Fatzook [ Sat Oct 09, 2010 12:08 pm ]
Post subject:  Re: J20 to sierra. (or similar)
mr.green wrote:
engine mounts...... gearbox mount..... shortened jackshaft.... transfer mounts to rectify jackshaft angle.....top and bottom radiator mounts.......clutch cylinder.......relocate heater tap to fit clutch cylinder........ transmission tunnel work...... extractors and exhaust........ power steering plumbing........wiring and vss........ efi tank mounts........



With the exception of transfer mounts, heater tap and clutch cylinder, thats what Matt's zook got with a G16B and auto into his 1L maruti. The bulk of this work was done in a few solid days and nights.

I know better than to underestimate a conversion, but I've done worse than a J20 by the sounds of it.

V6 buick into a sierra is a mission ( and totally stupid idea). But I don't have kids :roll:

Still, I hope you get it done soon. :wink:
Author:  steak_knife [ Sat Oct 09, 2010 7:43 pm ]
Post subject:  Re: J20 to sierra. (or similar)
CairnsZook wrote:
steak_knife wrote:

he had a ported head, after market ecu & extractor's..that's it..


Where can I get one of these ECU's? 8)


www.tweakit.net/shop/p...ts_id=7545

Thay can run Vvt to, thay run 20v 4age's VERY well & I see it as a solution to the Immob drama's the everyone complains about with the M eng's.. :P
Author:  steak_knife [ Sat Oct 09, 2010 7:50 pm ]
Post subject:  Re: J20 to sierra. (or similar)
steak_knife wrote:
www.tweakit.net/shop/p...ts_id=7545

Thay can run Vvt to, thay run 20v 4age's VERY well & I see it as a solution to the Immob drama's the everyone complains about with the M eng's.. :P


In saying that, the Vvt M18 is lighter than a J anything, smaller & I think a more suited eng, Mr BenT just need's to make adapter plate's to Vit g/box's, by looking at the eng's & from this
http://auszookers.com/index.php?name=Fo ... ic&t=10300
Thay look like a almost bolt in, swift's are a good supply of 1.5's as the bugger's are every where & stupid amount's of P plater's have them & are writing them off at low Km's..

:P Vvt rock &/or roll's :P
Author:  Fatzook [ Sat Oct 09, 2010 7:55 pm ]
Post subject:  Re: J20 to sierra. (or similar)
steak_knife wrote:
steak_knife wrote:
www.tweakit.net/shop/p...ts_id=7545

Thay can run Vvt to, thay run 20v 4age's VERY well & I see it as a solution to the Immob drama's the everyone complains about with the M eng's.. :P


In saying that, the Vvt M18 is lighter than a J anything, smaller & I think a more suited eng, Mr BenT just need's to make adapter plate's to Vit g/box's, by looking at the eng's & from this
http://auszookers.com/index.php?name=Fo ... ic&t=10300
Thay look like a almost bolt in, swift's are a good supply of 1.5's as the bugger's are every where & stupid amount's of P plater's have them & are writing them off at low Km's..

:P Vvt rock &/or roll's :P



And the M-series 1.5 has similar power to the G16b.
Author:  steak_knife [ Sat Oct 09, 2010 8:03 pm ]
Post subject:  Re: J20 to sierra. (or similar)
:P & that ECU will give it more.. 8)
Author:  BlueSuzy [ Sun Oct 10, 2010 6:18 am ]
Post subject:  Re: J20 to sierra. (or similar)
steak_knife wrote:
I see it as a solution to the Immob drama's that only FATZOOK complains about with the M eng's.. :P


:roll:
Author:  Fatzook [ Sun Oct 10, 2010 7:32 am ]
Post subject:  Re: J20 to sierra. (or similar)
BlueSuzy wrote:
steak_knife wrote:
I see it as a solution to the Immob drama's that only FATZOOK complains about with the M eng's.. :P


:roll:


Guess I'm not a software genieus like some. :roll: :roll:
Author:  steak_knife [ Sun Oct 10, 2010 8:07 am ]
Post subject:  Re: J20 to sierra. (or similar)
BlueSuzy wrote:
steak_knife wrote:
I see it as a solution to the Immob drama's that only FATZOOK complains about with the M eng's.. :P


:roll:


:rofl: :thefinger:

Well said.. :lol:
Author:  mr.green [ Thu Oct 14, 2010 11:34 am ]
Post subject:  Re: J20 to sierra. (or similar)
did a bit more on the zook today so i thought i would take a few pics being that there has been a bit of interest in the j20 lately

gearbox mount, crossmember and lifted transfer
Image

jackshaft
Image

left hand engine mount.. chassis will be fish plated and crush tubed
Image

toadys job..finishing radiator mount including a/c condenser mount
Image

l/h mount with radiator and condenser sitting in place. you can see how close they are to the front of the motor :?

Image

drivers side mount scolloped to clear pitman arm (jimny)
Image

radiator to chassis clearance
Image

bent the side angle of the radiator to clear steering box
Image

fitted swaybar.. this car will be %80 road and i want it to drive straight..
Image

Image
Author:  Fatzook [ Thu Oct 14, 2010 11:49 am ]
Post subject:  Re: J20 to sierra. (or similar)
Pics of the exhaust manifold :shocked:
Author:  tombutt [ Thu Oct 14, 2010 11:53 am ]
Post subject:  Re: J20 to sierra. (or similar)
haha box section wow think i just found the solution to the h20a extractors problem
Author:  mr.green [ Thu Oct 14, 2010 12:04 pm ]
Post subject:  Re: J20 to sierra. (or similar)
Fatzook wrote:
Pics of the exhaust manifold :shocked:

i was waiting for you to chime in there :lol: good enough to drive round the yard till the rest of the car is finished then it goes to the muffler man.
Author:  Fatzook [ Thu Oct 14, 2010 12:35 pm ]
Post subject:  Re: J20 to sierra. (or similar)
mr.green wrote:
Fatzook wrote:
Pics of the exhaust manifold :shocked:

i was waiting for you to chime in there :lol: good enough to drive round the yard till the rest of the car is finished then it goes to the muffler man.


Hahah good idea :lol: :lol:
Author:  remydog05 [ Thu Oct 14, 2010 9:29 pm ]
Post subject:  Re: J20 to sierra. (or similar)
Thanks mr green!

Im pretty sure the radiator mount (when using J20 one) is one of the biggest headaches unless you go to a recore sierra one or simlar.

Questions??

is your jimny steering box moved forward from stock position?

are you running the J20a or jimny PS pump??

What bearings etc did you use for the jackshaft plate/mount

What and how many wires did you connect to make it run?

nice exhaust manifold!!! LOL
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