So My Turbo Just Blew

[iamhe77]

... not sure how to upload mental images... lol

well Crayola have had a device that has been able to do that for many a year.

[hypergear]

Wastegate has been machined and a bogger disc fitted by

It is te stave 2 Sierra now that I think of it. Had a dumb moment...

They are 1980s. we only put in 2010 stuff.

Yes, but what specs?

I know that Stao will usually push for a 3076 core

Not exactly a 3076 core, more of custom core made to pump more, That’s for skylines. stegea is all different and more work.

[Daleo]

They are 1980s. we only put in 2010 stuff.

Not exactly a 3076 core, more of custom core made to pump more, That’s for skylines. stegea is all different and more work.

Can you elaborate on the issues experienced with the oil banjo? Was it an issue with the spotfacing for the sealing washers or something else? One off event?

Also feel free to elaborate about the detail of the turbo, ie; response in comparison to standard, projected potential output, any possible downside?

Not expecting trade secrets, just curious.

Cheers, Dale

[wolverine]

They are 1980s. we only put in 2010 stuff.

lol

Not exactly a 3076 core, more of custom core made to pump more, That’s for skylines. stegea is all different and more work.

RB engines Stageas have the same turbos as R33/34 skylines possibly with a slight change to the oil drain angle. I guess you are referring to M35's.

[Sunkist]

lol

RB engines Stageas have the same turbos as R33/34 skylines possibly with a slight change to the oil drain angle. I guess you are referring to M35's.

yeh was done for one of the m35 guys mate

[hypergear]

Can you elaborate on the issues experienced with the oil banjo? Was it an issue with the spotfacing for the sealing washers or something else? One off event?

Also feel free to elaborate about the detail of the turbo, ie; response in comparison to standard, projected potential output, any possible downside?

Not expecting trade secrets, just curious.

Cheers, Dale

factory run M12 banjo fittings, they are likely to leak on diy. Oil feeding line we sale with our turbos run speed flow fittings: a flared fitting in a 90 degrees hose tail, you gota install it before putting the turbo on to manifold. that won't leak unless incorrect size washers, its a better technology in hydraulic hosing. How ever if that causes issues in the stegeas then I will go back to benjos.

Turbo design Vs stock turbo obviously not as responsive (can be with the SS-1) as it is bigger, but no flat spots, pulls all the way to red, very good to drive.

Also extremely important to run 3inch metal intake pipes with pod filter. Turbo won't perform and will run wired on dyno with stock rubber pipe, as it will suck it self partially or fully shut under load.

[scotty nm35]

They are 1980s. we only put in 2010 stuff.

Not exactly a 3076 core, more of custom core made to pump more, That’s for skylines. stegea is all different and more work.

Lol, but that 1980's tech is pulling the numbers too, what have your wheels proven themselves to in the M35? I feel that size core will make the car run like a slug unless many more mods are done as these cars limit the throttle in so many areas. Have you driven one before and after?

The main issue we have is the turbo is wedged in a tight spot and gets very hot. Have you replaced an M35 turbo yet Stao? The oil line is the hardest part to get to and cant be tested until the job is finished. As "old" as the banjo bolt design is, it never leaks if you replace the copper washers and the steel line can handle the heat much better than any teflon braided hose. Why reinvent the wheel if you dont have to? Cant you just run the skyline CHRA like all the other turbo builders?

The intake isnt as easy to replace as you think either...

[Commsman]

The intake isnt as easy to replace as you think either...

I hear ya brother

[lilcrash]

Nice to know some people have the same feelings towards hypergear

[iamhe77]

Lol, but that 1980's tech is pulling the numbers too, what have your wheels proven themselves to in the M35? I feel that size core will make the car run like a slug unless many more mods are done as these cars limit the throttle in so many areas. Have you driven one before and after?

The main issue we have is the turbo is wedged in a tight spot and gets very hot. Have you replaced an M35 turbo yet Stao? The oil line is the hardest part to get to and cant be tested until the job is finished. As "old" as the banjo bolt design is, it never leaks if you replace the copper washers and the steel line can handle the heat much better than any teflon braided hose. Why reinvent the wheel if you dont have to? Cant you just run the skyline CHRA like all the other turbo builders?

The intake isnt as easy to replace as you think either...

Agree... except I'm sure that a better wheel design would be an improvement over the 1980's tech.

Agree 11tybillion on the oil lines!

I always have this feeling that Stao is referring to the RB powered Stagea's whenever he says "Stagea".

Edited July 8, 2011 by iamhe77

[hypergear]

Lol, but that 1980's tech is pulling the numbers too, what have your wheels proven themselves to in the M35? I feel that size core will make the car run like a slug unless many more mods are done as these cars limit the throttle in so many areas. Have you driven one before and after?

The main issue we have is the turbo is wedged in a tight spot and gets very hot. Have you replaced an M35 turbo yet Stao? The oil line is the hardest part to get to and cant be tested until the job is finished. As "old" as the banjo bolt design is, it never leaks if you replace the copper washers and the steel line can handle the heat much better than any teflon braided hose. Why reinvent the wheel if you dont have to? Cant you just run the skyline CHRA like all the other turbo builders?

The intake isnt as easy to replace as you think either...

Well I've referring to RB25 powered Stegeas.

We used 1980 cosworth wheels 4 years ago, they worked "alright" did not pull enough power nor mid range. Its not just the size, its the overall layout of the wheel. Our current wheels flows more, makes more power without flat spots, better torque, and within same better response range.

Its not about the thing " makes the No.s " its about how the numbers are delivered.

Skyline has the majority of market with a very good testing plate form. If the new wheels profile makes more power every where on a rb25 skyline, (I have lots of result to prove that) Then rb25 steaga makes no differences.

Stock oil line don’t supply enough oil, and could be clogged with years carbon deposits. Might be the reason for your stock turbo's death. That’s the only reason I want them changed.

Why reinvent the wheel if you don’t have to? Cant you just run the skyline CHRA like all the other turbo builders?

I don't understand what the argument is. Why should we avoid superior technology today and use stuff 30 years old. I choice modern technology that delivers more and better, I don't expect my customers to live up in the past.

[simply_mighty]

Woah woah,

Since when did my thread become a hypergear bashing thread?

I've had 4 turbos rebuilt by hypergear in the past, and all of those 4 are still pumpIng away on my previous 300zx and another few cars.

The only issue with this rebuild was the banjo supplied wouldn't seat properly as the thread into the braided line fouled on the oil feed mounting plate. That and the only copper washers I could find were imperial (read just over/undersized). We decided to mod the plate as I needed the car on the road - but on second thought I can 99% garauntee it was the copper washers not sealing properly.

The turbo is actually done quite well, even Craig mentioned that.

Stao - maybe for the next customer you could supple a 90 degree bend banjo for the turbo side oil feed.

Like I've said before, next time I'd go engine out and precision rebuild purely because there's more people doing them on the forums.

Given that the hypergear is almost $400 cheaper - you can get an a/m dump from Scotty and a highflowed turbo with modified actuator if it's just a daily driver for the same price as just a turbo rebuild.

That being said, when the cars back on the road I'll do a full write up so you can see the results. It had already started losing traction in the 5 min drive we had before we pulled it out again..

Sean

[lilcrash]

Sorry Sean, il go back to saying things to people in person rather then online. Hope everything works out for you.

[andy65b]

factory run M12 banjo fittings, they are likely to leak on diy. Oil feeding line we sale with our turbos run speed flow fittings: a flared fitting in a 90 degrees hose tail, you gota install it before putting the turbo on to manifold. that won't leak unless incorrect size washers, its a better technology in hydraulic hosing. How ever if that causes issues in the stegeas then I will go back to benjos.

I don't understand your comments about leaking if DIY..?

The person who did this install has installed and more turbo's and removed more engines from M35 Stagea's than anyone else in Australia. He has actually taught dealers how to half the time in doing a turbo swap. (Engine out)

I believe the oil leak in this case was due to the fittings supplied not clearing the brackets of the turbo and fouling. I am not sure the DIY reference has anything to do with this scenario.

Cheers

Andy

[simply_mighty]

Success!

After a mammoth effort, Craig and I finally got the bastard in (again) after having the oil feed plate resurfaced and sealed with the correct sized copper washers - and it's not leaking oil anymore!

I'm now 100% sure that it was incorrectly sized washers as to why it was leaking the first time we got it back in. In future I won't try using imperial sized washers on a metric sized banjo...

Now I just have to bleed the damn cooling system - had a scare on the test drive where the temperature shot up then came back down before going up again... Obviously an air bubble, so will hopefully bleed that out tomorrow and go for a few drives.

All in all - I'd recommend the Hypergear highflow for a daily driver if you're not chasing numbers - just bear in mind that the Banjo fitting may foul on the oil feed adaptor plate and will either require a new fitting or the housing modified like mine. I'll speak to Stao and hopefully he can provide the correct fitting for future customers. The response is slightly laggier, but makes great midrange and holds through to the top end. Induction noise is also a fair bit quieter than my last turbo (albeit most likely on it's last legs when I bought the car) and coupled with the dump pipe and modified actuator it hauls a fair bit more ass than before. That and it's $400.00 minimum cheaper than the next available rebuild option that I know of means you can get the extra parts for the same price as another rebuild.

I imagine an (awesome) Nismo, Impul or Emanage would be pretty damn quick with this setup too

Anyway, time to go clean the blood off my knuckles because I was stupid and decided to do it all engine-in...

Sean (that simple dude)

Edited July 14, 2011 by simply_mighty

[Sunkist]

well done simple dude! glad its all sorted for ya

[Jetwreck]

Glad I can finally get a good nights sleep and not think about it!

Much better things to thing about like zombies!!!!

[zei20l]

dont worry dude, tomorrow we are doing mine

but we will drop the engine out, unless you want to go insane by leaving the engine in???

good work on the turbo guys! glad you have your car back Sean

[simply_mighty]

So it flogs the pants off a CV8 Monaro, R33 GTST (albeit mostly stock) and a few other miscellaneous cars.

It's s bit slow getting onto boost but reels them in quick if they do get ahead. Gets to redline pretty fast in 1st and I've had the rear step out on me a fraction in the dry.

Still impressed - but still trying to bleed this damn cooling system 100%

Sean

Edited July 15, 2011 by simply_mighty

[Sunkist]

lol try stepping out in first second and sometimes third.