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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 11-07-2014, 11:50 PM   #1
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Default Finally my 1st (water cooled) turbo build

So I'm finally putting together my turbo and need some advice...here is what I have so far:

car- Ugly as hell, 1995, 1.8- Long block rebuild in process

Megasquirt 2
GT 2560
ID 1000's
ARTech SGDP to 3" exhaust
Turbo Sport BOV
sprearco IC (forget the size) ill get to that later
FM oil filter relocate
manly rods
Toyota cops
949 twin disc
15x9's
empty bank account

Searching for 225-250 whp. Is this a realistic goal?

Question of the night..Do I need to run a fuel pump/ regulator set up? from the FAQ Archive, It looks like I do not. Shooting for well under 300 hp and on a stand alone.

I have a few beer bottles surrounding me and a tube of skin thickener, so let the flaming begin...

Last edited by ryansmoneypit; 11-08-2014 at 01:04 AM.
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Old 11-07-2014, 11:59 PM   #2
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Originally Posted by ryansmoneypit View Post

Searching for 225-250 whp. Is this a realistic goal?
Easily. I made that on a Greddy kit, you'll be there with plenty of headroom.

Edit: No pump or regulator necessary unless you are going e85.
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Old 11-08-2014, 12:03 AM   #3
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Yes 250 should be no problem.
Heck, even 300 shouldn't be tough depending on what kind of fuel you have available.
For 250, you can get away with stock fpr, and maybe even pump, though the pump will be near the limit IMO.

what manifold you goin with?

we need pics
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Old 11-08-2014, 12:03 AM   #4
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Awesome.
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Old 11-08-2014, 12:06 AM   #5
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Originally Posted by 18psi View Post
Yes 250 should be no problem.
Heck, even 300 shouldn't be tough depending on what kind of fuel you have available.
For 250, you can get away with stock fpr, and maybe even pump, though the pump will be near the limit IMO.

what manifold you goin with?

we need pics
Virginia, we get 93 at the pump

ARTech side mount.

so i can get away with the stock FPR and a larger pump ehh?

pics soon... Im in the middle of moving into a new place. the neighbors are going love the guy who moves in and immediately tears apart his car.
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Old 11-08-2014, 10:08 AM   #6
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Quote:
Originally Posted by ryansmoneypit View Post
Virginia, we get 93 at the pump

ARTech side mount.

so i can get away with the stock FPR and a larger pump ehh?

pics soon... Im in the middle of moving into a new place. the neighbors are going love the guy who moves in and immediately tears apart his car.
No regrets here with my Artech side-mount. Still yet to see a dyno but at 10psi it pulls like crazy already. I'll be sure to put some results up after its tuned. I have similar goals to yours ~220hp range. I decided to keep it below 250 because a lot of people say that is the breaking point for the stock bottom end. I'm not ready to rebuild or swap motors again yet haha

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Old 11-08-2014, 01:22 PM   #7
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Building my cops harness now.. Following the sticky, I don't understand where the 10,000uf cap goes. Or better yet, I don't understand the directions. I have a megasquirt so, I do not need the capacitors?
EDIT: So it looks like the capacitors provide the full charge to the coils. Understood. Wouldn't it then be helpful to have a capacitor on each of the 12v leading to the coils and not just 1 on the main 12v source?
on a 1.8 (1995.5) since I have two plugs at the coils, am I going to actually have two separate harnesses, one for 1&4 and another for 2&3 ?

Are you guys just cutting off the connectors, or installing a male plug to go the the factory harness? Anyone have a plug part # ? the one in the write up seems to be just to the cop itself.

Last edited by ryansmoneypit; 11-09-2014 at 08:47 AM.
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Old 11-09-2014, 01:47 PM   #8
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1.8 oem connector Coil On Plug & Ignition : Fab9 - Ignition Connector - 4 Pin
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Old 11-09-2014, 02:47 PM   #9
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perfect, thank you.
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Old 11-10-2014, 11:35 PM   #10
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Most of the major parts, lots of small ones not pictured. Money well spent I think.[IMG][/IMG]
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Old 11-10-2014, 11:44 PM   #11
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Nope, I have the semi mystery 95.5. four pin 'flat"

I do not see it on the website either.
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Old 12-14-2014, 06:28 PM   #12
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Nope, I have the semi mystery 95.5. four pin 'flat"

I do not see it on the website either.
Ok, so i guess the "Denso" type male connector is hard to find.. im going with a gm weather pack retro.
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Old 12-14-2014, 06:30 PM   #13
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A quick pay-pal query, says that my budget turbo build is at about 5k and counting. Does someone have a free 6 speed lying around? maybe a coolant re route? Ohmy gawd, this is nuts.
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Old 12-14-2014, 06:35 PM   #14
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Originally Posted by ryansmoneypit View Post
A quick pay-pal query, says that my budget turbo build is at about 5k and counting. Does someone have a free 6 speed lying around? maybe a coolant re route? Ohmy gawd, this is nuts.
I did a budget coolant reroute. GM hose. KIA waterneck. Jackson racing spacer drilled, tapped and machined. < $100
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Old 12-14-2014, 06:39 PM   #15
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I did a budget coolant reroute. GM hose. KIA waterneck. Jackson racing spacer drilled, tapped and machined. < $100
OK, well I'm waiting on the spacer, should be here any day now..This may be the cheapest part of this whole endeavor.
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Old 12-14-2014, 06:45 PM   #16
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KIA waterneck was less than 20.
Hose < 30.

Cheapest waterneck price I could find: Kia Parts eStore
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Old 12-14-2014, 06:47 PM   #17
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Quote:
Originally Posted by aidandj View Post
KIA waterneck was less than 20.
Hose < 30.

Cheapest waterneck price I could find: Kia Parts eStore
Thank you sir.
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Old 12-31-2014, 07:06 PM   #18
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I started my wire harness for my ls2 coils, and have run into some confusion.

going off of the COPS write up, a Toyota coil is wired like:

1. Ground
2. Trigger
3. Tach
4. +12 V

But then the Ls diagram shows:

A- Coil GND
B- Ignition Low Noise Ground
C- Ignition Digital Signal
D- +12 V

could someone please help me understand these Ls coil labels please? Does the diagram for the wire harness (which is written for the Toyota part) also apply to the ls coils?

Thanks,
Ryan
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Old 12-31-2014, 07:19 PM   #19
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No, not entirely. The LS coils have no tach out pin. They only need three things, a trigger, 12V, and ground.

Tie both A and B together, and wire them as grounds the exact same way you would toyota coils. That extra ground is for misfire detection or something similar a megasquirt can't use. Everything else is the same, wire them in batch as the trigger is the same for LS2/toyota cops. You won't have a tach out, which I think is fine on your car. I believe it's driven off the ECU on 1.8s, and the megasquirt should already be wired and configured to drive your tach.
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Old 12-31-2014, 07:22 PM   #20
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Great, thanks!
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