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The Feared 1.8L

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Boot92

10+ Year Contributor
184
4
Apr 19, 2009
Brentwood, Tennessee
MOD EDIT: thread cliffnotes: Dude claims to have built up car and took it to the dyno. In reality, the car never got built and never went to the dyno. OP photoshoped a dyno chart and made up the entire story to go along with it. This is a hoax. When called out, OP stayed silent. If you decide to read past this point, just know that this is a fraudulent build/story and that you're wasting your time.




I don't know how many of you remember and I don't know how many of you care, but I was rebuilding a 4G63 to put into my 1G DSM, I ended up finding out that my 1.8L Block had been bored out and decided to resurrect it and get rid of the 4G63 for rebuild money.

My 4G37 Has the Over Sized Works. It been bored 0.020 Over, its not alot but its potential, found this out by when I opened up my bottom end pulled the pistons out and realized they were practically brand new. I later on called the previous owner about this he didn't know anything about it, and gave me the number of the dude he bought it from.

He told me he had some machining done to the car when he rebuilt the bottom end at 185k miles and increased the bore.

So now I'm in this huge rebuilding this motor from the bottom end up.

Here's everything on my List that isn't Factory Spec (BOLD is I'm still waiting on the part or I don't have it yet. other wise stock for now)

*Bore 0.020 W\ The Works (not alot but it helps)
*Reground 272\260 Cam
*2.0L 4G63 Shaved Cam Gear
*4G37 Ported TB w\ Coolant Bypass
*Custom Intake Manifold (*ITB's later on in the future maybe)
*Gutted MAF
*Open Air Can Mod w\ High Flow Air Filter
*Intake Hard Pipe
*High Flow Cat
*Custom Headers
*2 1\2 Inch Exhaust System (Cat Back) (Custom Made with Big Name muffler haven't picked one yet)

*Ported Head (Maybe **Cyclone 12 Valve Swap In the Future)
*7K Redline
*Premium Rings + Bearings
*NGK Premium Plugs
*NGK Plug Wires
*Oil Catch Can
*A\C and Burden Pulley Elimination
*Stage 2 4G63 N\A Clutch
*Custom Lightweight Flywheel
*Maybe a Stand Alone ECU for the ITB's
*Custom Head Gasket
*Balance Shaft Elimination
*EGR Valve Elimination


The Great things about 1.8L 4G37 Motors is the Bottom End is practically a Tank, they can withstand tons amounts of abuse unless it is under HIGH Compression or Forced Induction, Along with the fact that The Stock 4G37 (8 Valve SOHC) and\or Cyclone (12 Valve SOHC) Valve train is made of Same Material as a 4G63T and can with Stand a 7k Redline stock these 1.8L motors are still in there Power Band at the stock Redline which is 6K.

I'm About Half way done with it I'm just now putting the motor back together, I hope to have it at least running with in 1-3 Weeks from now.
 
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I recently picked up a 1.8L and even with all those mods you listed id be scared to take on some hondas. I bet mine runs an 18.5 in the quarter. These things are dogs but im interested to see if you can make it fast. Its unique for sure. Why the modded cam gear?
 
Well, when you get very Familiar with the 4G37, it will almost seem like to you that it was purposly made slow.

For Example:

The Reason the 1.8L Tuner Community put's a 4G63 2.0L Cam gear on there 1.8L Cam, is becuase the 4G37 Cam Gear is VERY HEAVY! 2 4G63 Cam gears weigh as much as 1 1.8L cam gear, and if you mill it down to the same size as the 1.8L Cam Gear, it is even lighter, which in doing this you take Rotational Weight off the motor which increase's HP

You can make 100+ WHP with Basic Free mods on the 1.8L

I would not be surprised if I get everything on that list if my 1.8L pushes 180whp.

these motors have ALOT more potential then people think. I happen to know a guy that is expecting to push 300-400+ WHP on his 4G37, of course his is turbo, but still, that's has loads. These motors also have a very steady power-band, and good torque. Stock Specs 92Hp\105Ft-Lb's TQ

and most of the Honda's around here are stock b16's and b18's or BPU 1.5 and 1.6L D-Series motors.
 
Im not hating on the 1.8 or anything im just sayin its gonna be harder to put down big numbers on it. I just use mine to drive to school and save the e85 machine for "spirited driving" LOL. The cam gear makes sense to get rid of some rotational mass.

Dont the different cam gears have a slightly different tooth spacing? When I compared my 2.0 belt to the 1.8, it looked like the 1.8 teeth were slightly wider and shorter.
 
and most of the Honda's around here are stock b16's and b18's or BPU 1.5 and 1.6L D-Series motors.

Throw a stock B16 or B18(gsr) in a 2000lb civic hatch, and it might be pretty difficult for a hopped up n/a 4g37 to hang with it.
Good luck with your buildup, there was a pretty impressive 1.8l n/a dyno on here I seen though.
 
yep, its actually fun to Tune the 1.8L becuase you can do things like jump the timing or just #### it up and never have to worry about bending a single valve, plus they are easier to work on and also MUCH cheaper then a 4G63 (I'm speaking from experience here haha.)


People say theres not alot of market for the 1.8L but that's only have true.

You make the market for them, and its not much more expensive.

Take the 272\260 Cam ill be getting for this beast, I have to have it custom made, but it will only cost me about 220$ including Shipping to the Company.

when tuning the 1.8L 70% of the tuning includes Free mods, MIY Mods, and Custom Machining which is actually alot cheaper then most people think.

It's not becuase I cant have a 4G63 or I cant afford one, becuase I had a 4G63 In my hands that I could throw into the car at any time, but as soon as I found out my 1.8L block was bored out, I wasn't trading it for the world. So I sold the 4G63 and started rebuilding my 4G37.

Throw a stock B16 or B18(gsr) in a 2000lb civic hatch, and it might be pretty difficult for a hopped up n/a 4g37 to hang with it.
Good luck with your buildup, there was a pretty impressive 1.8l n/a dyno on here I seen though.

Could you send me the link? I really want too see.

and yeah you are right, I had a b18A1 Civic with a B16a1 Head (Vtec Conversion) with Bolt ons that made 201WHP and it hauled ass. but I'm sure I could keep up with them, my DSM is actually pretty light, I wheighed it for a DSM. I think maninly becuase its a Base Base model. I mean a 1.8L 4G37 weighs have what a 4G63 weighs.

2311 Lb's is my cars weight with me out of it. and half a tank of gas. and no trash, spare, radio, tools, or jack.

EDIT: Actually now that I think of it...I think that might have been my Eclipse LOL.

I made 123Whp@131ft-lbs. w\ Free mods and now that i know it, a bored over block

Mods at the time would have been....(found out about the internal mods a few weeks ago)

*Hacked Air Can
*Gutted MAF
*A\C + Burden Pulley Removal
*Bored 0.020 Over w\ Pistons and Rings and etc.
*Straight Pipe
*Fresh Rebuilt Head
*EGR Elimination
*Coolant TB Bypass
*Premium Bearings + Rings
*NGK Plugs + Wires
*Advanced Ignition Timing

and maybe some other things I don't remember.
 
Dont the different cam gears have a slightly different tooth spacing? When I compared my 2.0 belt to the 1.8, it looked like the 1.8 teeth were slightly wider and shorter.

Nope, Its the same, I held both cams against each other and lined up the teeth and there is not a difference. the Timing marks are even in the exact same place.
 
Could you send me the link? I really want too see.

2311 Lb's is my cars weight with me out of it. and half a tank of gas. and no trash, spare, radio, tools, or jack.

EDIT: Actually now that I think of it...I think that might have been my Eclipse LOL.

I made 123Whp@131ft-lbs. w\ Free mods and now that i know it, a bored over block

I'm not sure, maybe it was your car:hmm: I really don't remember, i'd have to see the thread
I had a 90GS-T with roll up window, manual lock, no sunroof and it weighed 2770lbs bone stock w/out me in it. 2311lbs is pretty damn light.
 
yeah, like i said LOL, i got a 1.8L the 4G63 weighs 450 lbs not to mention it has more equipment (becuase of the turbo) and also has a larger Transmission and exhaust..

the 1.8L weighs just a little over 300lbs . and has a much smaller tranny, along with smaller exhaust system.

on my little tag thing on the door it says it weighs 2390lbs

I'm gonna get a CF hood for it in a little while to free up some weight on this beast becuase my hood has got to weigh at least 60lbs.

another thing you have to remember is the GS, GST, and GSX all have alot more equipment
liek the rear windsheild wiper.

we actually just picked up a GST Hatch w\ a rear windshield wiper and stuff and put it on a Eagle Talon 1.8L of the exact same year and the GST hatch weighed like twice as much.

They also come with different bumpers, seats, and those side skirt things, and a wing. mine had no wing at the time.
 
I had a JDM 1.8L with the 12v head in a '90 Eclipse (which was the GS model and it had the rear wiper, electric windows, cruise control, 4G63 exhaust and 16 inch wheels but still with the F5M22 NT's tranny) and it was amazing how much power could be had out of that little motor. Sure, not the greatest on the takeoff and power surges, but you hit that torque range and over, is when it wakes up to want to keep going.

I manage to hit over 125mph on the freeway and that danged motor still wanted to keep winding up more-and I wasn't even pushing the pedal to the floor. I was pushing almost 5200rpms at that speed, but when I started to feel the front end wanting to lift, I brought it down rather instantly.

Full stock, timing where it should be - just had some interesting power.

Check the photos in my profile - it's in there.

-DSM
 
Congrats on doing something for your self man. I get a lot of the same criticism for building 420a's.

1.8l or bust for you man!!
 
QUOTE=Lofty;151968827]With the money spent on upgrading the SOHC engine you could have more cheapily dropped a 4g63T in it.[/QUOTE]


actually. I've only spent 300$ so far,

With the Cam, and then the materials for my Intake\ITB's and exhuast system, it will probably total out at around 700-1000$.

Because my ITB\Intake Manifold, Exhaust System W\ headers, and my Oil catch Can I am fabricating myself.

4G63T motors cost like what? 1200$ with 30k miles on them?

not to mention Id have to buy...
4G63 Top Side Mount
4G63T Tranny
4G63T Clutch
4G63T ECU
4G63T Exhuast system
4G63T Wiring Harness
4G63T MAF
and other stuff
it would probably cost me 2.5K

Congrats on doing something for your self man. I get a lot of the same criticism for building 420a's.

1.8l or bust for you man!!

Thank you +1
 
Selling my na 4g63 for $250 and the turbo pistons can be bought for 50 and installed for 50 :). I still see everything costing well under $1200. That's half of your 2.5K cost. :)

But still the b16-b18 debate really isn't fair. A civic weighs 2200lb ful weight, from my knowledge. And the FWD eclipse weights 2500lbs (base model, nonturbo). My turbo weighs as much as the difference between the turbo header and n/t header. I don't know what that 'little tag thing' is. There's never been a base weight on the T/E/L from my experience. Do you have pic?

Anyway, that's 13% difference in weight right there. Gaining a 13% better power to weight ratio would make a 150hp motor perform like a 170whp motor. That's significant. Getting some of that weight from the identical shell as a turbo car will really help. That's why swapping T/E/L motors to colts is such a fun project :)
 
QUOTE=Lofty;151968827]With the money spent on upgrading the SOHC engine you could have more cheapily dropped a 4g63T in it.


actually. I've only spent 300$ so far,

With the Cam, and then the materials for my Intake\ITB's and exhuast system, it will probably total out at around 700-1000$.

Because my ITB\Intake Manifold, Exhaust System W\ headers, and my Oil catch Can I am fabricating myself.

4G63T motors cost like what? 1200$ with 30k miles on them?

not to mention Id have to buy...
4G63 Top Side Mount
4G63T Tranny
4G63T Clutch
4G63T ECU
4G63T Exhuast system
4G63T Wiring Harness
4G63T MAF
and other stuff
it would probably cost me 2.5K



Thank you +1[/QUOTE]



Yes this is very much close to true!!
Im actually still in the process of doing a 4g63 swap into my DL and i have COMPLETELY Blow over my budget!!!
Im talking almost 3Gs and still counting!
Im going to be happy when its all done and ready for the streets tho!

And i have faith in you man!!

Goodluck with it! ;)



DSM is a DSM!!! Stop hatin!
 
you mentioned using the cyclone head which i think refers to the 6g71-5 family of engine based on what i think i know only the 6g72 has the 12v sohc is this the one you were referring to ? and if so is it a direct fit?
 
"6g" ??? Arn't all 6g motors 6cylinder? A while back some have alluded that the reason for the larger 1g ports is for the cyclone intake design. . .

I can't imagine how anyone could EVER spend 3 THOUSAND american dollars on a sirius (4g6*) swap into a chassis meant for it to be there. . . I've bought whole cars with blown motors for $1000. There's something wrong with your price searching. I sold a 4g63 motor for $400, all the piping plus IC for $150. Non-EPROM turbo ecu for 90. injectors for 80. 14b and manifold for $150. o2 housing for 20. 1g turbo maf 20. downpipe work for 2.5" exhaust costs under 150 for an exhaust shop to do, if you can't do it yourself. Sold my FWD turbo tranny for 200. Swapped around 7.8 1g pistons for 100 (pressing and price for used pistons). I have bought a harness (mine got smoked in a fire) for 50.

. . .I hope your 4g37 proves to be a monster and outperforms all the naysayers propositions for such a motor!!!!! I'm glad to see one trying the untried. I want to see your Intake Manifold. . . And I want to see the ITB setup!!!!!!
 
Nice, I hope the build goes well for you. I got the same amount of criticism from local DSM owners when i started building my high compression N/T 4G63. If your willing to spend the money you should call up JE Pistons, I called them and they made me a set of 12:1 compression pistons for my car and they only cost me around 500....been spanking Hondas and Subies ever since :thumb:
 
2500??? You can buy a running turbo car for that. Ive picked up mutlple shells or "broken" or titless cars for under 500... Lately I just picked up 3 awds for 700. One runs, one has full drive train and one is a shell. Sold wheels and tranny/tcase and Im in the green on the cars already. Things can take time, I know Kronus didnt have that much in the swap and his is done and running.

swade
 
. . .titless cars . . .
:) . . . Sorry just had to.

Yes, I picked up my leather original cdplayer 1993 AWD talon for 500. But some moron put a g4cn (4g67 1.8L) hyundai motor in there thinking he was doing a 6bolt swap. Well it IS a 6bolt, but with the weak n/t pistons and .2L less displacement :notgood: But the rest of the car is fine. It all runs fine. I got a 1991 n/t 4g63 car with a blown n/t 4663 for free :) Guy paid the tow truck driver to tow it to my house. I don't know who blows up an n/t 4g63 with no turbo or n2o (rod sticking out of block), but hey. A knock sensor and a few parts and I have a FWD turbo car, no wiring harness work.

Well, what's it bored to? A 4g63 WITH a longer stroke 2.4 crank in it (stroker motor) only goes up about .1L hogged out from 85mm to 86.5mm. Still looks like something fun to do. There's really no one who dicides to try milking some naturally aspirated power with these motors. . .
 
you mentioned using the cyclone head which i think refers to the 6g71-5 family of engine based on what i think i know only the 6g72 has the 12v sohc is this the one you were referring to ? and if so is it a direct fit?

no no no.


The cyclone head, came off the cyclone motor which is engine that came out of the early Colts and Mirages called the 4G62\G62B

its a 1.8L 12 Valve single cam very similar to the 4G37
 
Why don't you just boost the 1.8 ? There is another guy on the forums doing so but i don't think he has gotten around to finishing.
 
That is a little more out of my price range, plus I need the car to be still somewhat reliable.

Boosted 1.8L's even if done 100% right, dont always last that long. I still need to get back and forth to work\School everyday

I know several people who are boosting the 1.8L. both expecting 200-450WHP
 
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