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M15A Sierra Build
https://auszookers.com/forum/viewtopic.php?f=5&t=47915		 Page 1 of 1
Author:  jimmey [ Thu Sep 25, 2014 12:28 pm ]
Post subject:  M15A Sierra Build
Hi guys!

I'm back again haha. but this time with a much more feasible build!
I'm 99% certain i've got this all down pat, albeit a few questions.

I plan on buying either a wrecked, un roadworthy or just all round holden cruze and ripping it to pieces.


Build:
90ish model SWB soft top sierra body and chassis
M15A non vvt motor (02-06 holden cruze)
M15A non vvt computer (02-06 holden cruze)
Custom Built dash with M15A cluster
Long range fuel tank with M15A fuel line and motor replicated
M13A Manual Gearbox non vvt (01-04 Jimny) EDIT: I originally had the wrong information from a piece of shit site that gave me the wrong gear ratios.
G13A Transfer with 4.9 gears
Most Likely M13A Sump
Stock Sierra diff.


everything else stock sierra


with all of this put together it works out that i'll be pumping out 3800 rpm doing 110 km/h with 31" tyres.
Completely stock Holden Cruze would be doing 3200 rpm to achieve 110 km/h. so I recon that's pretty damn sweet haha!

Question time!
1: Is this all Correct? I used a calculator that madmacca linked me to. which works fucking magically!!
http://www.grimmjeeper.com/gears.html

2. Ive planned to use VL engine mounts? yay or nay? also the gearbox and tranny mounts i was gonna tackle when i got to it?? probably fab something custom

3. would I be better to use the M15A clutch and flywheel or the M13A?

4. Would it be worth getting a heavy duty clutch? I won't be doing rock climbing or anything, more of a casual exploring type 4wding.


I think that's it for now!!

all your opinions and advice would be awesome too!

Cheers guys,

Jimmey.

Sources:
Gear Ratio Calculator: http://www.grimmjeeper.com/gears.html

M13A non-VVT Specs: http://www.cars-data.com/en/suzuki-jimn ... pecs/47060

Sierra Specs (+ All other models specs): http://www.4x4.in.th/specification.html

M15A Holden Cruze Specs (non-VVT): http://www.automobile-catalog.com/make/ ... /2002.html
Author:  Marko_SJ [ Thu Sep 25, 2014 1:03 pm ]
Post subject:  Re: M15A Sierra Build
jimmey wrote:
Hi guys!

I'm back again haha. but this time with a much more feasible build!
I'm 99% certain i've got this all down pat, albeit a few questions.

Build:
90ish model SWB soft top sierra body and chassis
M15A non vvt motor (02-06 holden cruze)
M13A Manual Gearbox (non-VVT??)
M13A Manual Non-VVT Tranny.
Most Likely M13A Sump
Stock Sierra diff.

everything else stock sierra


with all of this put together it works out that i'll be pumping out 3600 rpm doing 110 km/h with 31" tyres.

Question time!
1: Is this all Correct? I used a calculator that Marko_SJ linked me to. which works fucking magically!!
http://www.grimmjeeper.com/gears.html

2. Is there a differenece between the non vvt and vvt M13A gearbox or not? they've both got the same gear ratios. http://www.globalsuzuki.com/automobile/ ... imny/spec/

3. Ive planned to use VL engine mounts? yay or nay? also the gearbox and tranny mounts i was gonna tackle when i got to it?? probably fab something custom

4. would I be better to use the M15A clutch and flywheel or the M13A?

5. Would it be worth getting a heavy duty clutch? I won't be doing rock climbing or anything, more of a casual exploring type 4wding.


I think that's it for now!!

all your opinions and advice would be awesome too!

Cheers guys,

Jimmey.

Sources:
Gear Ratio Calculator: http://www.grimmjeeper.com/gears.html

M13A Specs (VVT + non-VVT): http://www.globalsuzuki.com/automobile/ ... imny/spec/

Sierra Specs (+ All other models specs): http://www.4x4.in.th/specification.html

M15A Holden Cruze Specs (non-VVT): http://www.automobile-catalog.com/auta_details1.php


Looking forwards to this one as well Jimmy.

But credit where its due, Madmacca gave you that link in the other thread.

Not me.

Cheers.
Author:  jimmey [ Thu Sep 25, 2014 1:13 pm ]
Post subject:  Re: M15A Sierra Build
Marko_SJ wrote:

Looking forwards to this one as well Jimmy.

But credit where its due, Madmacca gave you that link in the other thread.

Not me.

Cheers.



Woopsies! Thanks for that haha. got a little excited :/
Author:  got_bar_work [ Thu Sep 25, 2014 1:22 pm ]
Post subject:  Re: M15A Sierra Build
Your low range will suck with 31 and stock tc wont it
Author:  jimmey [ Thu Sep 25, 2014 2:01 pm ]
Post subject:  Re: M15A Sierra Build
got_bar_work wrote:
Your low range will suck with 31 and stock tc wont it


yeah it'd be average, but not to bad. low is 2.643.
first gear low range at 3000rpm will be about 12 km/h.

im not to much into crazy rock crawling, more exploring beaten trucks, deep ruts and steep hill climbs.
so it should be pretty sweet for me.

if I ever get the shit with it I can always go with a sierra tranny and puts some 4.9 or something in it, although that'll hurt my highway driving haha.
Author:  sideways [ Thu Sep 25, 2014 2:30 pm ]
Post subject:  Re: M15A Sierra Build
Non-VVT and VVT Jimny gearboxes are completely different and they do have very different ratios. Non-VVT is very similar to a 1.3l Sierra gearbox and has the same ratios as an SJ70/80. VVT gearbox has the ratios listed in your link.

You want the pre VVT gearbox for 2 reasons.

1. You can actually gear it to work in a Sierra.

2. Because the 2 are very similar, you can actually combine the 2 gearboxes giving you a Sierra length M gearbox with a toploader and Sierra gearbox mounts. This is what Suzistore did when they did their conversion.

With the above gearbox you can use the stock Sierra transfer (which is stronger, has good gearing options and needs no work to fit) and get 3400 rpm@110.

And yes, you'l want the Jimny sump and all the other Jimny bits you'd normally swap over when you do a conversion in one.
Author:  greenzook89 [ Thu Sep 25, 2014 4:28 pm ]
Post subject:  Re: M15A Sierra Build
2 Sierra Builds that come to mind are Jazzor's rigs, You may be able to glean some info out of his build threads.

viewtopic.php?f=4&t=14345&hilit=jazzor

viewtopic.php?f=4&t=39872&hilit=jazzor
Author:  jimmey [ Thu Sep 25, 2014 4:44 pm ]
Post subject:  Re: M15A Sierra Build
sideways wrote:
Non-VVT and VVT Jimny gearboxes are completely different and they do have very different ratios. Non-VVT is very similar to a 1.3l Sierra gearbox and has the same ratios as an SJ70/80. VVT gearbox has the ratios listed in your link.

You want the pre VVT gearbox for 2 reasons.

1. You can actually gear it to work in a Sierra.

2. Because the 2 are very similar, you can actually combine the 2 gearboxes giving you a Sierra length M gearbox with a toploader and Sierra gearbox mounts. This is what Suzistore did when they did their conversion.

With the above gearbox you can use the stock Sierra transfer (which is stronger, has good gearing options and needs no work to fit) and get 3400 rpm@110.

And yes, you'll want the Jimny sump and all the other Jimny bits you'd normally swap over when you do a conversion in one.



hmm, if that's the case the sources ive been using are wrong. any chance you can point me in the right direction of the correct gearing of the non vvt m13a gearbox?

as far as the transfers, i don't mind having to fab up an extra member or something to fit in another transfer. but if my math is wrong because of the ratios the sierra one might give me better revs.

also, why would I need all the other jimny bits to swap over? i didn't think i would need to since im running a m15a computer, so the computer would be perfect for the intake manifold and what not since they'll be coming out of the exact same car?

EDIT: I found a site with the correct Specs for a m13a non vvt, specifically jimnys from 2001-2004.
http://www.cars-data.com/en/suzuki-jimn ... pecs/47060

greenzook89 wrote:
2 Sierra Builds that come to mind are Jazzor's rigs, You may be able to glean some info out of his build threads.

viewtopic.php?f=4&t=14345&hilit=jazzor

viewtopic.php?f=4&t=39872&hilit=jazzor


cheers man! i'll give them a read through now ;)
Author:  monley [ Thu Sep 25, 2014 6:49 pm ]
Post subject:  Re: M15A Sierra Build
With a non-vvt box, going into a seirra transfer with 3.7 diffs on 31's your gearing with suck. You will want at least 4.09s sierra t-case. Jimny t-case's belong in the bin
Author:  jimmey [ Thu Sep 25, 2014 8:04 pm ]
Post subject:  Re: M15A Sierra Build
monley wrote:
With a non-vvt box, going into a seirra transfer with 3.7 diffs on 31's your gearing with suck. You will want at least 4.09s sierra t-case. Jimny t-case's belong in the bin


Jimny cases, piece of shit. noted. haha :rofl: is this just because they are infamously weak?

why would the gearing suck? do you mean just low range? I'm not to fussed about the low range until I finish the build and take it for a run.

with 3.7 diffs and sierra t case with 31's it sits about 3850 rmp @ 110 km/h :?
Author:  monley [ Thu Sep 25, 2014 8:24 pm ]
Post subject:  Re: M15A Sierra Buildpp
jimmey wrote:
monley wrote:
With a non-vvt box, going into a seirra transfer with 3.7 diffs on 31's your gearing with suck. You will want at least 4.09s sierra t-case. Jimny t-case's belong in the bin


Jimny cases, piece of shit. noted. haha :rofl: is this just because they are infamously weak?

why would the gearing suck? do you mean just low range? I'm not to fussed about the low range until I finish the build and take it for a run.

with 3.7 diffs and sierra t case with 31's it sits about 3850 rmp @ 110 km/h :?



Lack of gearing choices for jimnys cases and the chain will slip after a period of time especially with more power

High way cruising might be ok, but low range won't be low enough and you will for ever be on the clutch. In my old jimny I had a non-vvt box, 4.09 diffs, 4.16s tcase gears (Sierra transfer) and 31s. It sat 4000rpm@100kph which was sweet and low range was spot on. Any taller and it would of been crap
Author:  jimmey [ Thu Sep 25, 2014 9:02 pm ]
Post subject:  Re: M15A Sierra Buildpp
monley wrote:


Lack of gearing choices for jimnys cases and the chain will slip after a period of time especially with more power

High way cruising might be ok, but low range won't be low enough and you will for ever be on the clutch. In my old jimny I had a non-vvt box, 4.09 diffs, 4.16s tcase gears (Sierra transfer) and 31s. It sat 4000rpm@100kph which was sweet and low range was spot on. Any taller and it would of been crap


Ahh true that!

cheers for the insight man, I got the gear ratios all right and it looks like she'll be doing way better with 4.9's. roughly 3800 rpm @ 110km/h with 31's
Author:  sideways [ Thu Sep 25, 2014 9:30 pm ]
Post subject:  Re: M15A Sierra Build
jimmey wrote:
hmm, if that's the case the sources ive been using are wrong. any chance you can point me in the right direction of the correct gearing of the non vvt m13a gearbox?

as far as the transfers, i don't mind having to fab up an extra member or something to fit in another transfer. but if my math is wrong because of the ratios the sierra one might give me better revs.

also, why would I need all the other jimny bits to swap over? i didn't think i would need to since im running a m15a computer, so the computer would be perfect for the intake manifold and what not since they'll be coming out of the exact same car?


Ratios are the same as SJ70/80. ;)

You want the Jimny bits so the radiator hoses, oil filter, sump, dipstick ect are in the right spot. Might need a Jimny flywheel too?
Author:  jimmey [ Fri Sep 26, 2014 12:20 pm ]
Post subject:  Re: M15A Sierra Build
sideways wrote:
jimmey wrote:
hmm, if that's the case the sources ive been using are wrong. any chance you can point me in the right direction of the correct gearing of the non vvt m13a gearbox?

as far as the transfers, i don't mind having to fab up an extra member or something to fit in another transfer. but if my math is wrong because of the ratios the sierra one might give me better revs.

also, why would I need all the other jimny bits to swap over? i didn't think i would need to since im running a m15a computer, so the computer would be perfect for the intake manifold and what not since they'll be coming out of the exact same car?


Ratios are the same as SJ70/80. ;)

You want the Jimny bits so the radiator hoses, oil filter, sump, dipstick ect are in the right spot. Might need a Jimny flywheel too?



haha cheers for that man, i wouldve been roally fucked working off the wrong ratios, I foun a site that had the correct ones, and yeah there identical!

yeah i was wondering about that flywheel, I might go with the jimny one s traight up. :D
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