Sheedy Built Supra

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Thanks guys! I actually opted for this turbo size by the way it spooled on your car I watched on YouTube. I opted for the slightly smaller exhaust housing though (.83 divided)

Only reason I switched to the jz distributor was my 7m cps went bad on the dyno. Instead of taking a chance again with having yet another cps fail, the guys over at Portland speed industries suggested that I upgrade.

The only difference is the wheel is bigger which makes for a more reliable and clean signal I guess you could say.

It is rather big which is its only downfall. Sometime in the future I'd like to go to a hall sensor on the cam/crank for a cleaner look. This setup works great for now though! Now if the dang snow will clear out of the area I could take it for a spin

Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Installed the yotamd voltage meter in place of the rear washer button. Definitely a nice touch and looks just like the factory green clock! It's right in my line of sight too which is great




Sent from my SM-J320V using Tapatalk
 

black89t

boost'en down 101
Authorized Seller
Joined
Oct 27, 2007
Messages
954
Likes
1
Location
humboldt, ca
Re: 7mgte Hx52 Build

Thanks guys! I actually opted for this turbo size by the way it spooled on your car I watched on YouTube. I opted for the slightly smaller exhaust housing though (.83 divided)

Only reason I switched to the jz distributor was my 7m cps went bad on the dyno. Instead of taking a chance again with having yet another cps fail, the guys over at Portland speed industries suggested that I upgrade.

The only difference is the wheel is bigger which makes for a more reliable and clean signal I guess you could say.

It is rather big which is its only downfall. Sometime in the future I'd like to go to a hall sensor on the cam/crank for a cleaner look. This setup works great for now though! Now if the dang snow will clear out of the area I could take it for a spin

Sent from my SM-J320V using Tapatalk
glad i could help in the decision! mine actually came with the .88 open and i swapped it for the divided .83 like you got. it made the turbo sooooooooo much better to drive. i just hope its not a restiction when i push it to 700whp. i ran it up to 30psi but boost was dropping to around 26psi. that got me 131mph which is like mid 600's depending on the dyno. i think with it holding 30ish psi should get it to 700whp and trap over 135. its either a boost leak, my wastegate spring getting blown open, or the .83 housing is done at 26psi. hoping one of the first two. only ran it that high for one drags though so didn't have time to figure it out.

oh ok yeah i can see that. my cps has worked great besides rarely it wont start and i have to wiggle the wire to it. that hasn't happened years though. might wait to go standalone so i can run 10's on the 7mgte ecu pretty sure i'll have the record set pretty high if i can make it happen!
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

All I can say is wow. This turbo spools crazy fast, well at least what I'm use to.
Seems that full boost is roughly 3600rpm, I was only running 10psi wastegate pressure only a couple times until I finish breaking in the engine.

Lots of varying gears and ram with lots of vacuum coasting to stops. Not sure exactly how long the "break in" is but time to get it over with so I can get a solid dyno tune done! I'm ready to see what it can really do with more boost

Sent from my SM-J320V using Tapatalk
 

KenHenderson

Member
Authorized Seller
Joined
Oct 31, 2015
Messages
111
Likes
4
Location
SoCali
Re: 7mgte Hx52 Build

Motoman break-in method (on the dyno). IMO, the best engine break-in method there is, and only takes a few hours.

Ken.
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Motoman break-in method (on the dyno). IMO, the best engine break-in method there is, and only takes a few hours.

Ken.
I've heard of this especially when breaking in a street bike engine, hence the name ;)

The only head work I've done was springs, retainers and seals so there really isn't much there to "seat" like valves would.

Really the only thing to break in is the rings. I'll give the shop that is tuning the car a call and see what they recommend. Even if I did get the car broke in and tuned I couldn't drive it in the road for awhile, there is snow and tons of salt still

Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Had someone ask if I was still running the factory fuel damper on the rail, I still am. Heard of some issues with high flow fuel pumps and no dampers so I decided to keep mine. Just welded a 6an fitting on the end of the factory banjo

Hate to cover up the nice aem cam gears and belt, but I'd rather not have anything work it's way down inside! So on goes the cover. I cut it in half for easy installation and removal




I also plan to run something like this for the firewall grommet where the engine harness goes



Sent from my SM-J320V using Tapatalk
 

KenHenderson

Member
Authorized Seller
Joined
Oct 31, 2015
Messages
111
Likes
4
Location
SoCali
Re: 7mgte Hx52 Build

I've heard of this especially when breaking in a street bike engine, hence the name ;)

The only head work I've done was springs, retainers and seals so there really isn't much there to "seat" like valves would.

Really the only thing to break in is the rings. I'll give the shop that is tuning the car a call and see what they recommend. Even if I did get the car broke in and tuned I couldn't drive it in the road for awhile, there is snow and tons of salt still

Sent from my SM-J320V using Tapatalk
Ring seal is most critical when trying to make good power. In fact, I think idling a new motor is the kiss of death as it relates to making maximum power. Living in SoCali, I could not afford to be caught in the inevitable bumper-to-bumper traffic while trying to break in the motor on the road. I'm not saying the "gentle" break-in will not work. It does, but not as effectively as the motoman method.

This may help: http://www.mototuneusa.com/break_in_secrets.htm

Mother thread on Supraforums: http://www.supraforums.com/forum/showthread.php?56491-How-to-properly-break-in-a-newly-rebuilt-motor! No matter what approach you utilize, best of luck to you.

Ken.
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

The snow finally melted off the roads so I took the car for a spin. Went through 2 tanks of fuel today with all sorts of driving.

So... Im hoping to get the car down to PSI this next month (Feb) and get a solid tune so I can finally enjoy the car.

Also, my speedometer has always been a little bouncy but it finally quit on me driving down the road. So I will have to get that fixed. I'd also like to do the tablet for rpm, speed, and other sensors as well as have navigation for trips.

Only one picture for today cruising around with my friends gtr32



Sent from my SM-J320V using Tapatalk
 

mk2 supra

Member
Authorized Seller
Joined
Nov 28, 2009
Messages
106
Likes
0
Location
Oregon
Re: 7mgte Hx52 Build

What exactly is an accusump? I've seen them on build threads here and there but really haven't looked much into them. Saying that, I'll go check them out

Sent from my SM-J320V using Tapatalk
The key to engine immortality if you dont break anything, thats what it is. Mine is a 2 qt, they are worth every penny. You can see it up front here
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Just about ready to get my fender back, this time till be all red.

Install this weekend!



Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Reworking the harness a bit by running my coils and injectors to their own fuses on the fuse block. Will make testing and troubleshooting much easier to pull a single fuse at one location





Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Gave the air filter a bath and tie wired my power steering reservoir. The bracket developed a crack so I'll need to get thst welded back up











Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Rebuilt the power steering pump with all new seals, crush gaskets, and topped off with fresh atf fluid...
Took her out for a long cruise my my buddies mk4, she's loving the boost! Feel just as quick as my old hx35, only on 10psi waste gate pressure!

I also started to Mockup/make a template for a better catch can

2017-03-11_06-13-55 by scot sheedy, on Flickr
20170312_200033 by scot sheedy, on Flickr
20170312_173825 by scot sheedy, on Flickr
20170312_200046 by scot sheedy, on Flickr
20170312_200052 by scot sheedy, on Flickr
20170312_200100 by scot sheedy, on Flickr


Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Today was such a nice day, took the soup out for a drive and did some tuning.
Running 18psi of boost and only 11 degrees timing, she pulls hard! Although the 83a/r exhaust housing choked up top in higher gears, I'm impressed...
I will end up switching out to the 91 or 1.0 rear housing eventually
Also wired up the launch control switch, if I ever get around to setting it up... Installed it inside the shift knob... Sure looks clean! No wires showing either!













Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Re: 7mgte Hx52 Build

Very clean build you have. I like how your wiring is very organized and the location of it.
I'm taking my time this build, glad to see its showing!

Turbo out and getting rid of the 83divided housing, it spools super quick but chokes up top.
Replacing it with a 1.00 AR recommended by full race






Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
what made you conclude the exhaust housing was choking up?
After lots of research on Google, full-race, and especially the forums, the 1.00 is the housing to have for a 83-76 borg warner.
It spools just after 4000 and pulls to 7000+ rpm. I don't have any if the dyno graphs i came across but that's what I remember them to be.
My local supra friend also thought my housing was a restriction at higher rpm as well.
Full race recommends anything over 20psi to use the 1.00 housing and anything under 20psi to use the .91. They don't list or recommend the .83.

Sent from my SM-J320V using Tapatalk
 

black89t

boost'en down 101
Authorized Seller
Joined
Oct 27, 2007
Messages
954
Likes
1
Location
humboldt, ca
hmm curious to see how your dyno graph looks. i'm still on the stock ecu so only revving to 6500 with a very liner power band. the .83 housing has worked well but when i was trying to run 30psi it was hitting that then dropping to 26psi. not sure if its the wastegate getting blown open or the housing is maxxed out. only ran it that high once but will be trying again the end of this month.

the duty cycle on my boost controller was really high to hit that much boost so that was leading me to believe the wastegate spring was too soft. if not though then the housing was next on the list. the thing is though pt6262's have made big power on the .83 housings and the borg has a 68mm exhuast wheel so it shouldn't choke up as easy theoretically.



 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Hmm that's interesting, makes me wonder if I had another issue. I've already sold the 83 and purchases the 1.00 so we'll see how it does. After taking the turbo off, there is somewhat of a undercut where the runners are welded to the t4 flange.
It is a cheap ebay manifold so I didn't expect much quality. Going to take a carbide bit to it and get a smoother transition, thst was definitely a restriction in flow...

So that 563 run was on an s363 with the 83 housing at around 26psi? I'm also having very high duty cycle on my boost controller so I'll have to get a stiffer spring. It currently has a 10psi spring in now. May try a 15 since I don't plan on running anything lower.

Again, I'm doing all the tuning and boost control setup myself, so there may be some error on my part and most definitely isnt the best tune but it is safe with conservative timing and on the richer side.

Sent from my SM-J320V using Tapatalk
 

black89t

boost'en down 101
Authorized Seller
Joined
Oct 27, 2007
Messages
954
Likes
1
Location
humboldt, ca
how much boost were you running and what were the problems?

the 563 run was on 20-22psi and would trap 123-124 never dynod on the higher boost but went 130-131mph so im sure it was in the 600's. i think with it holding 30psi it should trap 135+

im currently running 1 bar springs so like 15psi was thinking of going to 18psi since that is what i run on pump most the time. this is the graph on my hx35 when i was running waaaaay past the exhaust housing limits. just straight falls on its face. a larger exhaust housing would have helped there a good amount i'm sure.

 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
I was running 18 psi and it'd hold strong through each gear not falling off. First and second gear would pull super quick and hard to roughly 6300, I don't have the log anymore but I'd say that's close.
Third through fifth would pull hard but only to about 5700-5800~ and it felt like the turbo fell in its face. (just like my hx35 did with a 12cm housing)

The only thing I could think of is the housing is a restriction at higher rpm and was running out of steam so to say

Sent from my SM-J320V using Tapatalk
 

black89t

boost'en down 101
Authorized Seller
Joined
Oct 27, 2007
Messages
954
Likes
1
Location
humboldt, ca
thats weird was your boost pressure staying consistent throughout the pull? also a/r?

i really doubt that housing is a restriction until at least mid 20's because i had excellent boost control with the 15psi wastegate and running 22psi. boost varying a couple psi through out the whole pull. i'm hoping the wastegate spring fixes my issue and i can run a steady 30-31psi. if it doesn't then i'm sure its the housing. going to take all my intercooler piping off to clean, inspect, and make sure its all good. then check for boost leaks too.

the thing is though thats towards the max hp output of the turbo so i can see the housing being an issue. 18psi is around 500whp plus or minus some so its not really being pushed yet. the only other variable is if you were revving to 8000rpm the smaller housing will max out easier for sure. my cars all low end but i want it like that its all ready laggy enough to me lol
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
boost was dead on through every gear with the .83 housing

just swapped the 1.00 on last night and took if for a spin this afternoon. i can already feel a HUGE difference.
its slightly laggier with full boost (222kpa) just over 17psi at 4447 rpm. this may spool a little quicker with a fine tuned timing/VE map.

i have some tuning to do at higher rpm, it leans out slightly but pulls all the way to redline no problem. i let off at 6500 because of the leaning issue.
ill do some tweaking to the VE table then back to doing a few pulls!

very happy with the 1.00 housing
 

black89t

boost'en down 101
Authorized Seller
Joined
Oct 27, 2007
Messages
954
Likes
1
Location
humboldt, ca
wow thats quite a bit laggier now thats like 500rpm difference from where i'm seeing full boost in 3rd. you have cams though and the ability to rev higher so i could see the combo working out great. if you rev to 7500rpm you'll actually have a larger power band than full boost at 4000 and revving to 6500. look forward to see how it plays out might be the direction i want to go too!
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
She sure did! I was really impressed as this is my first engine thst I've built on my own. I Feel really accomplished building and tuning it myself



Sent from my SM-J320V using Tapatalk
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
Well that was quick... Heads at the machine shop getting resurfaced and new hg on the way with Arp head studs!

Was running 22psi when the lead lifted, I think the bolts stretched...
Either way, I caught it early enough the bottom end is fine. No sign of knock in the logs

My buddy also let me borrow his mk4 until I get my head back from the machine shop! Super nice 98' IJM tt auto targa with the stu gt28 turbos.


Sent from my SM-J320V using Tapatalk
 

Supra28

Supramanian
Authorized Seller
Joined
Aug 17, 2006
Messages
1,925
Likes
1
Location
Columbus, OH/Kansas
I didn't realize you're so close to Walla Walla, I was just there in August (first time in WA) to visit family. How long of a drive is it for you to Walla Walla?

Where's the dyno video??
 

sheedy126

Boost Addict
Authorized Seller
Joined
Apr 30, 2012
Messages
717
Likes
2
Location
kennewick
I didn't realize you're so close to Walla Walla, I was just there in August (first time in WA) to visit family. How long of a drive is it for you to Walla Walla?

Where's the dyno video??
Yep walla walla is about a 30 minute drive to my house which isn't bad at all. Feel free to let me know if you're in town

My buddy took a few videos, I just reminded him to upload them. Might be a week I'll bet before he actually gets to it

Sent from my SM-J320V using Tapatalk
 

drogon

Member
Authorized Seller
Joined
Oct 29, 2013
Messages
249
Likes
0
Location
Dallas Texas
I figured you were going jz I saw all your stuff for sale haha, looks good man I'm doing research on the cost right now. Going single?


Sent from my iPhone using Tapatalk