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PostPosted: Fri Nov 17, 2006 7:05 pm 
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It would be a tiny help to match the intake to the weber adapter plate, but I doubt it would make a really noticable difference.

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PostPosted: Tue Dec 26, 2006 5:07 am 
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Zane wrote:
MEPR wrote:
Running a Weber carb is the best bolt on there is, most popular carb being the 32/36 DGEV (DGEV=electric choke, DGAV=hot air choke and DGV=manual choke), there are guys running 32/32s and 38/38s(the numbers in Weber carb designations refer to the diameter of the throtle body bores in MMs. The 32/36 is a progresive 2bbl and such will net better fuel millage than the others)
Pace setter makes headers for the G180 and i have been vary happy with mine


If you use a Weber carb, do you need the intake manifold machined?
On the Pace Setter header, can you use the existing exhaust pipe? What size exhaust pipe would you guys recommend?

You should still be able to find kits for the G Engines. These will provide you with intake adapters, the carb and throtle cable adapter/mounting plates. As far as the exsaust, the pace setter header dumps about 6" behind a crossmember (the one with the tranny mount if i remeber right). So new exsaust will be a must. I had a shop mandrel bend me some 2" pipe. It works great but as has been stated before, seems to realy take the low RPM power down to non exsistant. My engine dosnt realy wake up untill 3K rpm...
Also as far as bottom end parts, im about 90% shure that the Gserise engines all use the same cranks, rods and blocks. Its just bores and heads that are changed. And as far as making these engines handle more rpms, i wouldnt worry about it. I have downright abused my engine when it comes to rpms, theres been a few times where i have hit 8K on my tach. These engines will scream and come back for more. The bottom ends are about the same size as a 350 chevys, i have held up Isuzu rods and mains to 350 rods and mains the Isuzu stuff is only slightly smaller. I would be willing to say you could probly mistake them for eachother. So i wouldnt worry about over revving these guys as long as you take care of your maintnence youll be fine...

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PostPosted: Sat Jan 06, 2007 3:09 pm 
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Location: Norman, Oklahoma. The United States Of America.-1980 LUV 4X4
is there a part number for the 1.8, or will any weber 32/36 work, I am clueless on a weber.


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PostPosted: Fri Jan 26, 2007 3:51 am 
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i found a good hi performance clutch kit for those guys out there that are crazy and built weird isuzu motors, and like to bang through the gears and destroy trannys and rearends. lol

summit sells a centerforce II clutch for the isuzu motors with the 8.6in clutches. i think to make one work on an older model with the 1.8 and small flywheel, you just need a flywheel from a 4x4 model luv with the 1.8.

this is what im going to buy when i get my engine together. should help tear those trannies up real fast!! lol

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PostPosted: Fri Jan 26, 2007 1:21 pm 
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Remember The Aussie guys with there Holden Gemini's thats all they do is build the crap out of the G160 G180 G200 isuzu engines with turbo's sometimes.

I had to find this site I saw before in the past took me 20 minutes to find ENJOY!

http://www.freewebs.com/gemracing/engines.htm

our money is generally worth 1.75 times australia dollar by the way or just go to the exchange rate calculator.


A dual sidedraught LYNX Manifold for sale right now in australia for cheap I just got rid of mine a week ago.

http://cgi.ebay.com.au/gemini-inlet-man ... dZViewItem


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PostPosted: Fri Jan 26, 2007 8:48 pm 
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Farmer Joe wrote:
i found a good hi performance clutch kit for those guys out there that are crazy and built weird isuzu motors, and like to bang through the gears and destroy trannys and rearends. lol

summit sells a centerforce II clutch for the isuzu motors with the 8.6in clutches. i think to make one work on an older model with the 1.8 and small flywheel, you just need a flywheel from a 4x4 model luv with the 1.8.

this is what im going to buy when i get my engine together. should help tear those trannies up real fast!! lol

I have been running a LUK pro gold for a long time. They are designed to take heat and thus are great for 4wheeling. I beat my truck perty hard and its held up well...

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PostPosted: Wed Mar 07, 2007 2:59 am 
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has anyone put a list together of how much horsepower increase for any given upgrade.

weber= +___hp
header= +___hp
electronic distrib= ___hp
ofy intake with weber= +___hp

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PostPosted: Wed Mar 07, 2007 10:12 am 
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this give somewhat of an idea
http://www.chevyluv.zoomshare.com/album ... _album.css

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PostPosted: Wed Mar 07, 2007 1:29 pm 
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Just wondering, who much of a factor is an aftermarket intake? Little hard to find and seem to be rather pricey... is a Weber, pacesetter header w/2" exhaust & MSD ignition enough in itself?

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PostPosted: Wed Mar 07, 2007 5:29 pm 
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I just swapped the four blade solid fan on my Trooper to a clutch fan and was amazed to actually feel a difference. The troop had the same fan on it that came stock on LUVs and a Trooper clutch fan should bolt right up. So add that to your lists folks, my "butt dyno" says it is worth it on a slightly bigger motor, so on a stock g180 it should be even better.

Any 4 cylinder Trooper up through 91 should fit, but I have not test fit one yet. The 88 Isusu Impulse (probably 85-89 too) has the same fan and clutch with a slightly shorter shaft on it so that is another option.

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86 Isuzu Trooper reliable backup
77 LUV 2wd stock beltway blaster (resting)
79 4x4 LUV project: 2.6L, 5spd, 31s (eventually)

MEPR: Man, my 4x4 makes all other LUVs look good :lol:


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PostPosted: Wed Mar 07, 2007 8:48 pm 
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well if thats the case wouldnt an electric fan be even better :?:

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PostPosted: Wed Mar 07, 2007 9:25 pm 
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ctmandu wrote:
well if thats the case wouldnt an electric fan be even better :?:


yes :twisted:

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PostPosted: Sat Apr 07, 2007 6:31 pm 
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Hi Guys,
I just thought id give you some input into these engines.The obvious things are that these engines use the same stroke but different bore(1.8 84mm,G200 87mm)also the G200 rods have an extra hole at the bottom of the rods in aid to squirt oil on the piston to keep it cool.If you want power out of these engines its all in the cylinder head,you need alot of porting,a good cam,and a good set of heavy duty valve springs...
In Australia we have the G161,which is identical in the casting as the G180-G200,but has an 82mm bore and a smaller stroke than the G180-G200.The main reason we use these engines is because thats what the 'Geimini' here in Oz came out with...The main advantage with these engines is their cylinder heads,they have alot more 'area' to port and when ported right can get impressive results..
Its not uncommon here to make 140-150 hp to the wheels in n/a form but you can't do it with a 32/36 carb,you'd need atleast a pair of 40mm or 45mm webers,of the best option would be aftermarket EFI.
So getting power isn't something that cant be done with these engines,because it can be done...
Regards,
Darren

http://www.freewebs.com/gemracing/


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PostPosted: Sun Apr 15, 2007 10:12 pm 
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Took my cam and head to Las Cruces to Micro Machine to get the cam redone and the head shaved :wink: I want to do the porting myself, i dunno how that will go. Some time in the near future I want to get the block to them to get it bored. You dont know how bad I wanna whoop up on those "fart can" Civics down here, in fact just the other night i was coming home from my friends house real late and pulled up next to a honda accord at the light, needless to say he started revving his engine, i just smiled :roll: cuz i took him in my stock Luv. He was with his girlfriend, so i must have shrunk his ego perty good lol


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PostPosted: Sun Apr 15, 2007 11:26 pm 
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Home head porting is a pain and done wrong can cost you horsepower. Try to find as much info as you can and good luck.

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PostPosted: Tue Apr 17, 2007 10:37 am 
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hey mytmouz, do you think i should let them port it? :? they are the experts.


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PostPosted: Sun Apr 29, 2007 5:02 pm 
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all that you do when you port these little heads is make the airflow straighter, right?

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PostPosted: Fri Jun 15, 2007 8:27 pm 
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this is a reply 2 an old email u posted about weber carbs and electrionc dissy's. I have a 1980 4x4 luv i'm not sure if it's got the original motor and i don't know much about engins.I'm tryin 2 swap my carb over 2 a weber and my dissy 2 electronic. My question is what carb and what dissy do i need. I'm having trouble finding part numbers. I was told 2 get a dissy from an 82 thats no problem but i can't find the module for the 82 dissy. Well i did find one but it was 400 dallars . please give me some help


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PostPosted: Mon Jun 18, 2007 7:43 am 
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Take a look about 1/2 way down this thread, I've listed all the PN's and such that you need for a very simple electronic upgrade. No modules or any of that stuff, just a two wire hook up.

http://forums.luvtruck.com/viewtopic.php?t=13577&highlight=dizzy

A search on this site will give LOTS of info on the weber. You want to look for a 32/36 DG series (DGAV, DGEV, DGV, etc.). I got mine off ebay from a BMW 2002, I think it came to about $50 with shipping. They average about $120 in decent used shape, you just have to keep your eyes out for a cheaper one. A lot of people run these on lots of 70's mini trucks (Datsuns and Toyotas), check your local craigslist for good deals.

If you plan to use the stock intake, you'll need an adapter...

http://www.jameng.com/prices/index.phtml#99004.333

JAM has a couple that would work, it's mostly your choice if you want a one or two piece style.

I've got about $80 in my used distributor w/cap & rotor, and another $54 in the carb. Add $35 or so for the adapter and a carb kit, and it all came in just under $200. Of course if you go all new parts, it' will be more...

Have fun, good luck. 8)

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PostPosted: Mon Jun 18, 2007 8:14 am 
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tumwatertaz wrote:
Well according to my friend...by using the G180 crank and connecting rods on the G200 pistons in a G200 block, with a milled G180 head, a Delta reground cam, an Offy intake with a Weber carb, and a Pacesetter header (and no smog or emissions junk)...you would wind up with a damn potent little four-banger engine with pretty good compression, lots of horse power and torque, and it still would run just fine on regular gas at the pump.

I already have a 5speed with the rear end out of an '86 Isuzu longbed...and an Accel coil and electronic ignition installed in my '78 shortbed stepside.

And I just recently found a junk Impulse with a good running G200...and I already have an extra complete stock G180 on hand...so I think I'm going to build me a seriously lean mean hybrid.

I wonder with the right valve train included...just how much horsepower you can actually manage to squeeze out of one?

The completely stock G180 was about 75-80 hp at best...and I'll bet you could at least more than double that easily.


What cam grinds are recommended for the 1.8/1.9? Can G200 pistons be used in a G180 block? If the G180 can be bored .060 over could you run the G200 slugs with standard rings? What is the recommended max for milling the head? Would a stock 2.3 intake provide any better intake flow, would it bolt on to the 1.8? I'm thinking I'm going to have some machine work done on an engine anyway, so now is the time to sort all this out. What I'm after is torque and reliability.

I'll probably run the stock intake and exhaust initially, with a weber and my electronic dizzy. Trying to keep costs low on this, I've got kids to feed and a mortgage to pay ... :wink:

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