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Old 05-20-2008, 03:30 PM   #1
ericwilloughby
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$700 rear mount turbo build

$1500 is giving me 12 psi and 8th times of 7.1@102 off a 1.7 60 ft. on street tires. 580/660 wtq. NO intercooler. I run E-85.

Some photos of my cheap ass turbo build in the first steps.


Parts:
$320 Holset WH2D turbo. 4-10 psi depending on which gear with no wastegate
$600 MasterPower T-70 10-20 psi. Replaced above turbo.
$320 Custom pipe
$140 Silicone hose, T-bolts, air filter
$80 Flo-Jet oil return pump. its loud so I changed it to an external Walbro 392 ($120) in winter 2009.
$70 Hardware-brass,brake line hangers, screws
$50 Wastegate, for MasterPower turbo
$50 BOV + 3" adapter pipe
$30 Oil feed flanges
$30 Exhaust inlet flange. I made my own. Don't do it.
$28 Brake line for oil supply
$16 rad and oil overflow cans
$14 Hose for PCV and gauge
$10 2 boxes of vacuum tees for PCV and gauge
$9 breather for oil can
$7 relay for oil pump
$5 PCV check valve

$1450 complete turbo kit +

$500 HPT or other tuning
$320 60# Injectors
$140 in-tank Walbro add another $140 if you want 2
$35 injector wiring adapters

$1000 for tuning and fuel


2009 Jan edit. I've moved up to a MasterPower T-70 set at 7 psi and am still at $1600, 62# injectors, Walbro fuel pump. . Here is a copy of the new list from post 330 for current parts and prices. And oh yeah, it works all right

2009 March edit: I bought HP tuners.


2009 April edit: I came across a new Holset HX50 for $240 and a friend made a variable A/R valve that I wanted to try so I took the MasterPower off (valve requires a divided housing) and put this stuff on to play with. Turns out the HX50 had the exact same guts as the WH2D, damn. The valve allowed me to turn the boost up double or triple. I settled on 10 psi but the pistons only took that for 3 days. Broke off 2 ring lands. No other damage was done because the pieces stayed put between the rings.

2009 May edit: I now have a forged block, Eagle rods, Wiseco -11cc dish blower pistons, ARP main studs. $1500. I have as much in my block as the turbo project. I love the external gate of the Holset's (sound) but I need to go back to the MasterPower, put a larger A/R on it first, to put the pressure on this forged block.

2009 Sep edit: I bought and installed a .96 A/R exhaust housing for the mp t-70. Its giving me 12-15 psi and 8th times of 7.74@104 off a 2.0 60 ft. on street tires. 580/660 wtq. I'm never going back to the diesel turbo. The Walbro is done...I'm have to run 50% gas and 50% E-85 to keep my AFR up. Working on fittings for an external pump.

2010 Feb edit: Staying with the MP T-70 .96 A/R. I made the external in-line pump, no regulator, no return, controled off a 6 psi boost Hobbs switch. It works but only rasied my fuel pressure from 3 back to 4 bar on 60# injectors. I expected a little more for my $300. I wish I'd have bought a meth kit instead and sprayed E-85 through it.

April 2010 update: I burnt up the 3-4 clutches in the trans boosting #10 in OD. I found a guy that used to own a trans business that works from his own shop now. He got me raybestos stage 1 clutches, extra wide band and drum for $400 and is doing the labor for $400. While the trans is out i put a Fti 2800 stall in also. $800 for the stall and $800 for the trans.
7.1@102 on a 1.7 60' eighth mile
Lockup clutch on the converter stopped working due to an improper chamfer cutting the o-ring. Sent it back for a full refund.

I also made a DIY boost a pump with an 18v DeWalt battery for $20. Worked great.

July 2010: I added a second Walbro inside the tank. This is a cheap easy mod.

Jan 2012: I had my 7th 4l65e failure and am in the process of a 4l80 swap.

Where the parts came from:

The oil lines are brake lines, inverted flares and hardware from NAPA and AutoZone.

Flo-jet Oil return pump from Tractor supply. I switched to a Walbro fuel pump. Works so far. Quite too. Got clogged and failed. Using what everyone else does now, Surflo...

BOV from eBay.
siliconeintakes.com for hoses, air filter, T-bolt clamps.

The oil supply:









Attached Images
File Type: jpg 2005 GTO Turbo Oil Supply (0).jpg (57.3 KB, 26462 views)
File Type: jpg 2005 GTO Turbo Oil Supply (1).jpg (77.1 KB, 22129 views)
File Type: jpg 2005 GTO Turbo Oil Supply (2).jpg (87.2 KB, 22089 views)
File Type: jpg 2005 GTO Turbo Oil Supply (3).jpg (65.5 KB, 22188 views)
File Type: jpg 2005 GTO Turbo Oil Supply (4).jpg (57.2 KB, 22082 views)
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Last edited by ericwilloughby; 02-26-2010 at 02:08 PM.
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Old 05-20-2008, 03:31 PM   #2
ericwilloughby
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Turbo goes here I have an HX40 but the wastegate is broken. Having no luck exchanging it. It also is a T3 flange, very small, but maybe a good thing for a rear setup. I may have to go with a HX50 which has no gate but a much larger compressor and a T4 flange.



Attached Images
File Type: jpg 2005 GTO Turbo Oil Supply (5).jpg (62.2 KB, 22140 views)

Last edited by ericwilloughby; 05-20-2008 at 03:50 PM.
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Old 05-20-2008, 03:34 PM   #3
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The oil return with cooler.









Attached Images
File Type: jpg 2005 GTO Turbo Oil Return (0).jpg (86.2 KB, 21968 views)
File Type: jpg 2005 GTO Turbo Oil Return (1).jpg (75.8 KB, 23195 views)
File Type: jpg 2005 GTO Turbo Oil Return (3).jpg (78.1 KB, 22011 views)
File Type: jpg 2005 GTO Turbo Oil Return (4).jpg (83.4 KB, 22070 views)
File Type: jpg 2005 GTO Turbo Oil Return (5).jpg (99.2 KB, 22943 views)

Last edited by ericwilloughby; 05-20-2008 at 03:42 PM.
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Old 05-20-2008, 03:35 PM   #4
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Going to be a 2.5" pipe. I am undecided on whether to connect it to the stock intake tubing or gut it all.

Ideas, thoughts?


Attached Images
File Type: jpg 2005 GTO Charge pipe hole (1).jpg (90.4 KB, 21617 views)

Last edited by ericwilloughby; 05-20-2008 at 03:43 PM.
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Old 05-20-2008, 03:44 PM   #5
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Hell yeah man I like it! More pics??
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Old 05-20-2008, 03:45 PM   #6
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I gotta see this!
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Old 05-20-2008, 03:47 PM   #7
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This should be interesting.
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Old 05-20-2008, 04:39 PM   #8
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Interesting......... I think its a cool idea just hope everything works for you.

Should be cool to say I spent 700$ on a turbo kit... thats less than some exhaust systems for our cars lol!

Good luck with the project man!
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Old 05-20-2008, 04:56 PM   #9
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sounds like u might be on to something here.
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Old 05-20-2008, 06:18 PM   #10
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dont use the stock piping its going to blow out the first time you hit boost.

keep us posted on how it goes
pics = good

Last edited by slow05goat; 05-20-2008 at 06:20 PM.
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Old 05-20-2008, 06:47 PM   #11
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That turbo looks like it was covered in barnacles haha.

This ought to be interesting and really badass if it works.
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Old 05-20-2008, 07:06 PM   #12
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'bout time some one did something like this, keep us updated
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Old 05-20-2008, 07:11 PM   #13
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looks good great idea keep us updated!!
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Old 05-20-2008, 07:14 PM   #14
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+ 11nty billion on the keep us posted... cool idea
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Old 05-20-2008, 07:17 PM   #15
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This is like a bad ass turbonator! lol

Good luck with the build. Lookin forward to seeing what you get out of it.
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Old 05-20-2008, 07:24 PM   #16
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Old 05-20-2008, 07:53 PM   #17
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Shit, if this ends up working halfway decent, Ill drive to Louisville to check it out in person!
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Old 05-20-2008, 10:05 PM   #18
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Looks like you got something going here. Keep posting those pics I still have most of the parts i bought to do the same thing.
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Old 05-20-2008, 10:11 PM   #19
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This right here is precisely why the STS kit is over priced. Awesome eric, hope everything works out for you. I myself am a former builder of home brewed turbo kits on the cheap. I did a 93 Grand Am for under $1000 for a guy a while back. That included about $700 worth of labor that I charged him.
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Old 05-21-2008, 12:48 AM   #20
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Sweet! I'll be watching the progress on this. Good luck!
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Old 05-21-2008, 03:06 AM   #21
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Quote:
Originally Posted by Megadeth_Guy01...View Post
That turbo looks like it was covered in barnacles haha.


That is some funny shit. ha ha ha

I've been trying to get a better turbo for a month now. I'm tired of waiting and ready for the exhaust to go on. I need to decide today to upgrade to the HX50 with no wastegate or just put this junky thing on and see what happens, I mean blows.

I actually only gave $100 for this thing but it needs a $100 wastegate actuator. Sucks that the diaphragm is blown. I don't know what to do with it. Put it on or trade up to the T4 that may not spool but may not need a wastegate in all likely hood.

Last edited by ericwilloughby; 05-21-2008 at 03:08 AM.
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Old 05-21-2008, 03:26 AM   #22
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You are going to NEED a BOV, you arent driving a diesel. The first time you are in boost, then lift the gas pedal, something is GOING to give. The throttle plate is shut and the turbo is still compressing air... Itll either ram that throttle plate down your TB's gullet or more likely blow off a charge pipe, or possibly destroy the turbo. (Actually it WILL destroy the turbo - it will just take a little longer, and when that compressor gives, your engine will be ingesting all that junk.)

Have you done anything at all to beef up your fuel supply? Do you know what the AIT's are going to be at the given power level as well as what boost level you will need to be at to achieve those power levels with that holset 40 (or 50). Have you even looked at a compressor map?

And if you do go with the HX50 you will HAVE to put a wastegate into the system or say bye bye engine AND turbo the first time you are into boost.

I commend you for your effort but you REALLY need to do a LOT more research than what it appears you've done to keep everything from grenading.

http://www.turbobygarrett.com/turbob...ch_center.html

Read tech 101, 102, and 103

Last edited by Bumpin' Yota; 05-21-2008 at 03:29 AM.
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Old 05-21-2008, 06:28 AM   #23
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Just get a used factory BOV they are worth nothing! And good luck with build. Bargain price!
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Old 05-21-2008, 06:36 AM   #24
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I read about something like this a while back. Kid took a junker Mustang (Fox body maybe?), put in a relatively low output motor that he got dirt cheap, and a couple turbo's off of some tractors as I recall. Made sick amounts of power from a cheap, reliable setup and was blowing the doors off many others at the strip.

Good luck!
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Old 05-21-2008, 07:31 AM   #25
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^^^ I read that article. It was a mazda 6cyl or something with 200k miles on it and a long jeep shifter iirc. Completely whiskey tango but a beast at the strip.

Good luck on the build!
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Old 05-21-2008, 08:04 AM   #26
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looks interesting, cant wait to see the final results!
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Old 05-21-2008, 10:14 AM   #27
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Shocked it took 12 hours

Quote:
Originally Posted by Bumpin' Yota...View Post
You are going to NEED a BOV, you arent driving a diesel. The first time you are in boost, then lift the gas pedal, something is GOING to give. The throttle plate is shut and the turbo is still compressing air... Itll either ram that throttle plate down your TB's gullet or more likely blow off a charge pipe, or possibly destroy the turbo. (Actually it WILL destroy the turbo - it will just take a little longer, and when that compressor gives, your engine will be ingesting all that junk.)

Have you done anything at all to beef up your fuel supply? Do you know what the AIT's are going to be at the given power level as well as what boost level you will need to be at to achieve those power levels with that holset 40 (or 50). Have you even looked at a compressor map?

And if you do go with the HX50 you will HAVE to put a wastegate into the system or say bye bye engine AND turbo the first time you are into boost.

I commend you for your effort but you REALLY need to do a LOT more research than what it appears you've done to keep everything from grenading.

http://www.turbobygarrett.com/turbob...ch_center.html

Read tech 101, 102, and 103


I can't believe it took 12 whole hours for somebody to bust me down. haha And it wasn't (Kiwisti, 24V, or jcain) like I expected.

I have read that. I have 3 compressor maps for various HX40's.

As for all the rest of the questions, we'll just see. Its all about the fun of learning, and burning rubber.

Last edited by ericwilloughby; 05-21-2008 at 01:14 PM.
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Old 05-21-2008, 11:50 AM   #28
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Quote:
Originally Posted by Bumpin' Yota...View Post
You are going to NEED a BOV, you arent driving a diesel. The first time you are in boost, then lift the gas pedal, something is GOING to give. The throttle plate is shut and the turbo is still compressing air... Itll either ram that throttle plate down your TB's gullet or more likely blow off a charge pipe, or possibly destroy the turbo. (Actually it WILL destroy the turbo - it will just take a little longer, and when that compressor gives, your engine will be ingesting all that junk.)

Have you done anything at all to beef up your fuel supply? Do you know what the AIT's are going to be at the given power level as well as what boost level you will need to be at to achieve those power levels with that holset 40 (or 50). Have you even looked at a compressor map?

And if you do go with the HX50 you will HAVE to put a wastegate into the system or say bye bye engine AND turbo the first time you are into boost.

I commend you for your effort but you REALLY need to do a LOT more research than what it appears you've done to keep everything from grenading.

http://www.turbobygarrett.com/turbob...ch_center.html

Read tech 101, 102, and 103


If that were the case, then all of the Buick GN's out there would have blown up turbos. You don't "need" the BOV, but it's definitely nice to have.

Quote:
Originally Posted by ericwilloughby...View Post
I can't believe it took 12 whole hours for somebody to bust me down. haha And it wasn't (Kiwisti, 24V, or jcain) like I expected.

I have read that. I have 3 compressor maps for various HX40's.

And for all the rest, we'll just see. Its all about the fun of learning, and burning rubber.

This is so up kwiktsi's alley, I doubt he'd give you shit.
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Old 05-21-2008, 12:26 PM   #29
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What kind of power at what boost levels do you plan on making?

I would at least do some fuel mods to keep things safe. What are you going to do about tuning?

You can get a cheap bov, prob $20, from a dsm and they are good to about 18psi

Looks like a fun budget project. I have wanted to do something like it for a while now. But I dont want to break anything, including the bank
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Last edited by AshyLarry; 05-21-2008 at 12:30 PM.
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Old 05-21-2008, 01:23 PM   #30
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Plans for boost and power, ha, what plans. I'll take what I can get. I'll take what ever the turbo'll put out or whatever the Ethanol will handle.

For now everything is stock. I tune with a Predator. If I enjoy this project and want to tinker I'll get HPT and some 60's. But those things will cost me near $1500 as I don't have a laptop.

As for the BOV. Maybe later. I've driven a WRX and I had to work at it to get it to blow off. Are they adjustable? I'm thinking the cheap OEM models have a fixed relief PSI and I won't be anywhere near it.

Last edited by ericwilloughby; 05-21-2008 at 01:26 PM.
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