Re: my new project
 

Okay cool. Would you mind getting me details on it? Like price? Is it the standard or race comp cover? What compressor wheel? Exhaust a/r

I need the standard cover with the 5in inlet and would prefer a 67mm or 71mm but might consider bigger if the price is right. You can pm me if you don't want all the details in the thread. Thanks!

Re: my new project
 

Just for comparison sake, here's a pic of the BW .88AR undivided T4 housing (left) compared to a T67 .68AR T4 housing (right).

http://i828.photobucket.com/albums/z...o/3460ba52.jpg

The AR numbers aren't really that much different, but remember AR is just a ratio of Area to Radius, so the numbers can be a little deceiving. The pic makes it pretty clear how much larger the housings are and how much more air they flow. The "R" is obviouslly way bigger, so the "A" must be much larger too.

http://www.turbobygarrett.com/turbob...ing-AoverR.jpg

Re: my new project
 

I wonder how thick those housings are?

Re: my new project
 

Hmmm I wonder how their .90 or 1.00 would compare to my gt42 .91. From my understanding from the research I've done the housings are very similar in dimensions to my gt42. But maybe they were just talking about the comp cover and not the turbine housing. I'll have to look into the dimensions more and make sure it will fit

Re: my new project
 

Are you going divided? There have been tests done on the divided housings showing that the "smaller" .91 housing made just as much power as the one 1 size larger, yet improved the spool. That is why I got the .91. Then once I realised the housings are massive, and the number is a little deceiving, I understood why. I think there is a divided one in the .8x size range, I've been contemplating switching to that.

Lots of really good info here:
http://www.supraforums.com/forum/sho...-S300SX-turbos

Re: my new project
 

I'll have to check my exhaust manifold and see if that is divided or undivided. but will probably go with a divided either way lol

Re: my new project
 

Well I got a little work done today.

Re: my new project
 

Some more pics

Re: my new project
 

Well I got the long block assembled and ready to have the cams degreed. Now I just need the cams degreed, clutch rebuild kit and an upgraded clutch fork and the engine can go back in finally.

Also when I was going through my parts I found my oil pick up tube but map had already put on my oil pan. I figured map probably installed a new one but for my own peace of mind I pulled the oil pan and of course they did but I snapped a picture of the main girdle

Re: my new project
 

That's a pretty shortblock

Re: my new project
 

Thanks! It sure is!

Re: my new project
 

Looks awesome. Looks like its on its way to be ready come spring!

Re: my new project
 

Yep! It will definitely be ready by spring. Hopefully I'll have the engine in by the end of this month or early January at the latest then ill just need a turbo and a tune and she'll be driveable :-)

Re: my new project
 

style track day!

Re: my new project
 

Nice, I like the Valve Cover.

Re: my new project
 

Heck yeah! I will definitely be down

Thanks! I can't really take credit for the vc that's how it was when I got the car

Re: my new project
 

okay here's a little update on where things are sitting with the engine build, where the car sits for supporting mods, and my winter plans on what I want to get done to it.

the long block is basically assembled and ready to have the cams degreed (pending funds for now). I just ordered a bunch of miscellaneous little gaskets and o-rings needed from white bear mitsu. I want to get this thing as put together as possible.

I'm not changing much other than the engine and turbo.

Map stage 2 Short block:
.020 over wiseco 1400hd 8.5:1
Pauter xbeam
Stock crank
Main girdle

Cylinder head:
Ferrea springs and retainers
Ferrea competition plus +1mm valves
Comp 101400 camshafts
Adjustable cam gears
Full port and polish

Turbo system:
Turbo???????? (previous turbo: garrett gt4294 .91 a/r)
Red jack racing tubular top mount t4 manifold
Tial 38mm wastegate
4in vband down pipe
Intake system:
Redjack racing fmic
3in intercooler piping
Jmfab drag intake manifold
Q45 throttle body


Fuel system:
Twin walbro 310lph fuel pumps (not verified)
Larger fuel line
Larger fuel rail
F.I.C. 2150cc injectors
Aeromotive fpr
Aeromotive fuel filter

Tuning:
AEM ems
Drivetrain:
Powertrain technology twin disk clutch
Shep stage 4 transmission with welded diff
Shifter bearings
Scatter shield



winter plans for it are:


getting cams degreed, new clutch disks, and clutch fork and get the engine back in the car asap


Fix or replace my wideband

Fix my fuel pressure gauge inside the car

Fix tachometer

Put some carpet in it to clean up the interior a little

Full blown dual pump hanger to get rid of the rusty modified stocker

run new wiring for the fuel pumps

basically do everything to take care of the voltage drop I was getting at the pumps as possible then just for some added security I think i'm going to get a boost a pump too

and then get a new turbo. I'm still open to any ideas or suggestions here! so feel free to chime in ! I'm still leaning towards a bw 67mm s400sx but the fp hta4294 looks like another very reasonable option. Others that are floating around in my head (but will need to intake and exhaust) are the pte 6466, pte 6766, and fp hta3794.

guess thats it for now. sorry for the long post lol

Re: my new project
 

Is that manifold divided t4? If its open, you could pair it with a divided turbo and a QSV to help with spool for streetability.

Re: my new project
 

Honestly i dont remember. I think it is open but I will double check next time I'm up at the car. I've heard of the quick spool valve but no idea how it works lol.

Re: my new project
 

Just a boost actuated valve that blocks off one scroll of a divided turbo, effectively reducing the AR of it (which we all know increases spool) until boost kicks in and it opens up allowing both scrolls to flow when at full boost.

Id like to get one but they are expensive.

Re: my new project
 

It doesnt really reduce the A/R ratio does it? I thought it just blocked off a port and thus the gases get forced through the open port at a much greater speed.

Re: my new project
 

If gases only go through one scroll vs. two it would effectively cut the A/R in half would it not?

Edit, FP is having Holiday sales on their BB 3788 ($1700), BB 3794 ($1700, JB 4294 ($1500), and JB 4205 ($1500) turbos. All are T4.

Ball bearing

Journal bearing

Re: my new project
 

Hmmm how well do they actually work? And how expensive lol? It might be something worth trying since I'm going to be running a 2.0l. I'll have to look into them

Re: my new project
 

Hmm i spose that is what the A (cross sectional) stands for doesnt it?

Now that i think about it A/Rs on divided exhaust housing are kind of strange to compare because they realistically have a separate A/R for each scroll. Hmmm brains.

When i said what i said above i didnt have a dual scroll exhaust housing in mind. now i do!

Carry on!

Re: my new project
 

Also I will probably be running a gt42 style turbo with a top mount manifold so I might run into fitment issues with the hood

Re: my new project
 

FWIW, a friend of mine runs a QSV on his poopra with a Comp billet 67mm. I believe he said it cut roughly 5-600 rpm off his spool time when it was setup correctly.

Re: my new project
 

If I could pick up 5-600rpm that would be worth it to me but they look kind of thick so idk if fitment would work but ill look into it

Re: my new project
 

Switch to DSMLink.

Re: my new project
 

That is something I would really like to do. But i have no idea what all would need to be done to switch. This car has been such a headache already that I don't really want to try and deal with figuring out how to switch over right now. Plus money is starting to become a factor in what I do with it right now. So for now I will probably have to run aem still next summer and switch to link next winter

Re: my new project
 

I've never used one first-hand, so couldn't speak on any sort of actual RPM increase. I think they are in the 300-400 dollar range.

Check out youtube videos of Sound Performance Supra's, they have some where they compare with and without QSV dyno charts.

Flopster, I think you figured it out on your own :) But if anyone else is still confused, yes you reduce the "A" by blocking off one of the scrolls. So if you're A/R was .90 (90/100), and you block off one port, you would have reduced the A (90) to a lower number say 50. So your A/R is now .50 (50/100). I am not a mechanical/math master, so I don't know if it's exactly cut in half or what. But it is significantly reduced.

Re: my new project
 

I just checked my manifold is already divided so I think a QSV is out



Idk how I missed this but I think the jb hta4294 would be a good realistic option too. If I had the funds right now that bb3794 would be a real option too that's a good deal!

Re: my new project
 

Here's a little update. On the engine I have basically everything I can assemble right now minus the manifolds. And still waiting on funds to have the cams degreed and get the couple parts needed to put her back in.

I was feeling kind of ambitious today so instead of buying a full blown pump hanger I decided to rewire mine with 10g wire. I got the stock plastic plug where the stock wires go into the sender out and drilled it bigger then ran then 10g wire in and jb welded it closed. This should help a lot with the voltage drop to the pumps almost all the crimp connectors in the tank were loose and it was 14g wire in the tank. I used crimp connectors to connect them to the pumps but I also soldered them so they can't loosen up. It will also get rid of the multiple connections coming in and out of the sender as well as using the rusty sender as a ground. There are also multiple wire size changes coming into and out of the fuel pump relay. I will be rewiring all of that too so there is a good clean power supply to the pumps.

Re: my new project
 

Hanger looks good. I always thought thr full blown was a waste of money.

Re: my new project
 

Thanks! Yeah the full blown one looks nice but for the little bit I have into supplies I think this will function just fine once I'm done with rewiring the relay

Re: my new project
 

http://www.clublexus.com/forums/sc40...ke-a-look.html

That's like a sore dick, can't beat that shit!

Re: my new project
 

Damn! I wish I had the funds! I might have to see what I can do to scrape some up

Re: my new project
 

Holy fuck you do know there 67mm that flow more and cost a lot less?

Re: my new project
 

I Yes I do but the car already had a gt4294 on it so something like fp's jb hta4294 (which is a billet 67mm 4294) will bolt right up and work with my intake and exhaust. If I go with something like a pte jb cea6766 sure it's cheaper at around 1100 bucks but then I will have to have a new intake and exhaust made so in the end it will still probably be around 1500

Re: my new project
 

I put some new strainers on the pumps and got the sending unit installed and rewired the relay to day. I just need some eyelets so I can finish the grounds for the pumps. It's all cleaned up now. Unfortunately I forgot to take before pictures

Re: my new project
 

I was not talking about the pte 6766 but it does flow more.

If you want something that bolts right up have you thought about sending your turbo to pte and getting the 72mm billet wheel put on it?