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Supercharging 1.6 Carby
Posted: Wed Aug 12, 2009 8:26 pm
by monkeyplex
I'm finally wanting more grunt to spin the 31's. Engine swap, seems too much work when I don't have a hoist and welder and stuff. So i thought a SC12 Toyota supercharger would be a better option. Has anyone ever done this mod, or recommenda any other type of supercharger? Any major headaches?
Cheers
Posted: Wed Aug 12, 2009 10:56 pm
by alien
a few guys here have supercharged before but hated the economy...
why not go EFI?
Posted: Thu Aug 13, 2009 10:56 am
by monkeyplex
Well the SC12 has the electric clutch, so you can switch the blower on and off as you please. Does EFI really give a noticable power increase?
Posted: Thu Aug 13, 2009 11:22 am
by alien
i ran the 1.6 with sierra carby, a huge change from the 1.3, like MILES more power... then i put a weber 32/36 on and gained more power again, and have since gone MPFI (jimny top end with vit injectors)... theres a further power increase (not huge, maybe 5%) - but the real difference is in the torque... i reckon theres about 30% more torque than previously. The engine is also much nicer to drive now, needs less revs and pulls away in every gear.
So my vote would be interference extractors (4-2-1 pipes) and EFI to get the torque going =)
Posted: Thu Aug 13, 2009 1:19 pm
by grimbo
you have done gearing already?
Posted: Thu Aug 13, 2009 3:42 pm
by atari4x4
grimbo wrote:you have done gearing already?
I'm guessing it's a vitara?
No high range reduction available, only low range via Xfer gears.
Unless it's like mine that came with 4.6 diff gears & swapping in 5.1's from an early vitara has brought it back to standard gearing on 31's
Posted: Thu Aug 13, 2009 4:05 pm
by alien
Even still - i drove a stock EFI swb vit on BFG 32's (no lift just guards cut) for a while and on road it still performed just fine - takeoffs at lights etc just meant holding the clutch a tad longer - by all other means it didnt exactly "lack power" - but could have done with lower gearing for drivability.
Posted: Thu Aug 13, 2009 7:36 pm
by monkeyplex
Yeah its a Vit 1990, so I think I have the 5.1 diff then. The gearing doesn't bother me too much on road, infact I think it's better in first and second speed wise, (might get rockcrawlers for 4L tho). But... It just bogs down sometimes because of the reduction in torque at the wheels. And hills just kill it in the arse. So do good extractors make a noticable difference? How hard would the EFI job be on the 1.6 carby? And are EFI parts easy to find?
Appreciate the help folks
Posted: Thu Aug 13, 2009 8:01 pm
by alien
well - that being the case, i'd go gearing of some kind before going down the power path =)
check these out:
http://www.puresuzuki.com/Ring%20&%20Pinion.htm
Posted: Thu Aug 13, 2009 8:06 pm
by atari4x4
i think they are unavailable, unless they have started making them again
Posted: Thu Aug 13, 2009 8:13 pm
by atari4x4
sorry i stand sort of corrected...
5.83:1 R&P's maybe in production in the future
http://bbs.zuwharrie.com/content?topic=101521.0
Posted: Fri Aug 14, 2009 11:26 am
by monkeyplex
Temporarily discontinued?? I assume that means they do intend to start making them again. Hopefully. Is that the only shorter diff ratio option?
Posted: Fri Aug 14, 2009 3:10 pm
by Guy
The low gears had life span issues from memory, they were soft to help the tiny little burr cutter like pinion survive and not shatter .. so they wore quite quickly.
Posted: Mon Aug 17, 2009 9:57 pm
by monkeyplex
Fair enough. The 'heavy duty' clutch has survived 5 years of abuse so far and still feels ok. Might as well just run it into the ground. Then maybe the EFI conversion or webber carby with some extractors for extra grunt.
Cheers fellas
Posted: Tue Sep 08, 2009 1:09 am
by guyza87
Im contemplating supercharging my 1.6 efi for extra power, has anyone done this... any ideas or help if they have... do i need aftermarket computer and all that jazz