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Replace 1hz with ls1

Tech Talk for Cruiser owners.

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Posts: 21
Joined: Wed Sep 08, 2010 1:35 pm

Replace 1hz with ls1

Post by Aj6474 »

Can any one tell me the problems I need to look out for when replacing the 1hz with a ls1 is there any thing I should or shouldn't do
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Re: Replace 1hz with ls1

Post by Z()LTAN »

You should first remove the 1hz b4 trying to fit the ls1.

Not doing this can cause some issues..
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Re: Replace 1hz with ls1

Post by Aj6474 »

Thanks zolton I shall keep an eye on that ( there is always one in every crowd )
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Re: Replace 1hz with ls1

Post by McLarryBob »

One is diesel and one is petrol... they don't mix.
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Re: Replace 1hz with ls1

Post by Aj6474 »

It's good to see the clowns have had an input :finger:
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Re: Replace 1hz with ls1

Post by killalux »

More info, what car?

work out what you think it will cost, double it and ya should be right.
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Re: Replace 1hz with ls1

Post by BFCK97 »

yeh pretty much what killa said, and make sure your box is strong enough to handle the extra grunt
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Re: Replace 1hz with ls1

Post by Aj6474 »

Sorry killalux it's a 80 series 5 speed and I am thinking about putting a ls1 auto that I already have for a nother project as I am just sick of having to flog a diesel and still get passed by trucks up hills
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Re: Replace 1hz with ls1

Post by little_dan.123 »

Theres a bit involved as the others say with the cost, check Marks 4WD, for conversion kits, that willbe much easyer, the fuel supply is a issue for a lot off people.
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Re: Replace 1hz with ls1

Post by Aj6474 »

little_dan.123 wrote:Theres a bit involved as the others say with the cost, check Marks 4WD, for conversion kits, that willbe much easyer, the fuel supply is a issue for a lot off people.
Yeah thanks mate I didn't even give fuel to much thought I will look into it
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Re: Replace 1hz with ls1

Post by 80diesel4play »

Can always boost ya 1HZ and not bother with teh expnse of a LS1 conversion... that truck that past you is probably a tanker with teh fuel you needed to run and LS1 anyways!!!
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Re: Replace 1hz with ls1

Post by Aj6474 »

80diesel4play wrote:Can always boost ya 1HZ and not bother with teh expnse of a LS1 conversion... that truck that past you is probably a tanker with teh fuel you needed to run and LS1 anyways!!!
I have a ls1 in my vt and I don't think I would be able to get enough boost in a diesel reliably to even half match a standard ls1 :)
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Re: Replace 1hz with ls1

Post by BFCK97 »

after seeing several ls1 powered 4wd's (75 series cruiser, gq patrol, my 75/80 cruiser) i'd take an ls1 over a diesel any day of the week, if you like having decent power under your boot :D
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Re: Replace 1hz with ls1

Post by Aj6474 »

BFCK97 wrote:after seeing several ls1 powered 4wd's (75 series cruiser, gq patrol, my 75/80 cruiser) i'd take an ls1 over a diesel any day of the week, if you like having decent power under your boot :D
I definatly agree besides it is working out cheaper than rebuilding the diesel and fitting a turbo to :smilecolros:
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Re: Replace 1hz with ls1

Post by Kitika »

Pretty much what you will need going from my memory:
Bell housing adapter and clutch parts from marks adapters,
Block hugger headers from marks (other brands may work but marks definitely fit)
I used a 4terrain clutch as they are much better priced compared to what marks are and the 11inch clutch they offer takes more force than the commo's standard clutch.
Standard commo electric fans fit perfect with a bit of trimming and I haven't had any over heating problems even when working it hard in 45* days.
Standard commo fuel pump as they are cheap 2nd hand, have built in regulator and I couldn't get any aftermarket regulator/fuel pump setups to work and be reliable so I went the obvious path.
I saved a fair bit by not getting A/C hooked up as I don't need it with the electric windows as the brakets and pump need heaps of mods to fit and the extra plumbing was too expensive.
Ls power steering pump bolts straight up to the cruiser pipes (1hz pipes anyway)
Wiring is very simple I think it was 6 wires to ignition I think it was and it ran. I can give you some diagrams when you get that far.
Also the computer has to be unlocked which is a $50 job or you can get a mafless tune at the same time for a bit more. There is a speed sensor that I am missing on mine as I didn't pay the $500 for the adaptor which makes it much more economical at cruising speeds mine does about 18-22L/100 without (doesn't matter how soft or hard I drive I can't get it over 22L/100km) and with it should drop it down to about 14-16l/100km or so im told.
More Suzuki parts going to the big Suzuki Heaven in the sky!
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