SilverSFR

Well the rebuilt turbo finally arrived in the mail today. I must say, Majestic turbo does a great job. So I thought to myself who better to share my excitement with than you guys. When I showed my wife her exact words were "that’s nice honey.... How much did it cost this time.” and rolled her eyes... I hope you all will be a little more understanding than she was. Here are some new pictures of the turbo and other new parts I just had to get. Enjoy...








SilverSFR

jyoon

nice looking system. i've never seen the cool side of a turbo that looked like that before.

Gulpilen

Very nice! Keep us updated!

Darien

Please let me know when you design one for an 85-86

sublimate

Wow, that is nice honey. How much did it cost this time? (just kidding)

toofast928

Very Nice Setup!

mpesik

Interesting. What is the Red Pipe made of ?

Alan

Where does the intake pipe plumbing go? - elbow up following pressure side and then forward where the passenger side intake pipe was? - where does the airfilter go? (Cone?)

Would it have been possible to route the intake directly forward below headers to front & up or is there too much stuff in the way.

Since this is a single turbo and the lengths to the headers are so different does this create any balance issues across RPMs?

I like the simplicity of the installation with just one Turbo to worry about - how is the heat management? any issues? any additional shields or ducts for this?

Those headers/manifold look nice - from your previous post they cleaned up fantastically!!

Was this whole thing custom built? - looks very pro...? Any more out there like this one? thanks for sharing details

Alan

PS where does your new blow off tube point - is it plumbed all the way to the back??

G Man

I'm confused. Shouldn't the waste gate be on the output side of the turbo. I don't understand how it will release excess pressure where it is located. Or am I looking at the pictures wrong. Nice set up. I want one.

SilverSFR

Alan,
My system utilizes the stock air intake. If you were looking at the motor compartment you would not notice anything out of place. These are some older pictures from under the stock air box. It has since been cleaned and polished. You can see where the airbox connects in its stock location on the right and the silver tube with the orange connector on the left comes up from the cold side of the turbo and directly into the intake of the motor. very slick setup. This is the only BAE Turbo 928, but BAE turbo charged lots of other high end vehicles in the 80's. A search on BAE turbo in google comes up with interesting hits all the time. The red tubing is high temp, 4 ply, silicone turbo tubing.





Gman,

I think your question describes the difference between a blow off valve(BOV) and a wastegate.

SIlverSFR

1982 928S BAE Turbo
5-Speed
Platinum Metallic/Tan
64K
Gotti Wheels
Borla Exhaust

04 Nissan 350Z
00' Toyota 4-Runner

LukeSportsman

Just to clarify his answer. A wastegate as used on a turbo controls output by controlling the exhaust pressure. This is why especially rear engine (930) type cars you see exhaust flames out the wastegate when shifting or decel. A BOV can be used as a safety device, sanctioning body restriction or even with a blower and works to vent intake if psi goes too high venting off intake pressure. In MASS airflow cars it is often vented back to the intercooler lets say and not to the atmosphere.

G Man

I'm a rookie as far as turbo systems go. I assumed the over-pressure release would be on the pressurized side of the plumbing. Thanks for the clarification.

Jack '84 928s

what size of turbo are you using?

Alan

Jim,
Sorry I created the confusion here. I should have asked SilverSFR how the new "WASTEGATE" was plumbed - does it go all the way to the back and exit as a 2nd exhaust tip or just vent underneath the car as is shown? Assume the cats are gone and you now have a single high flow muffler @ back? or does it split back up into a stock rear pair?

Looks like there is no pressurized intake side blow-off valve required assume its not needed due to less than extreme boost levels and the wastegate protection (will be some spindown lag here though right?).

What are (?)/were the results... seat of the pants driveabiity factor and any dyno data done or planned? Seems like it has lasted very very well - till now - someone did a good job back then!

Assume you've have no emissions test issues either?

I especially like that it looks totally stock from above - nice.

Alan

SilverSFR

Alan,
The new wastegate will just vent to atmosphere. I am hoping the angle to the dump tube from wastegate is pointed down enough. If needed, I might bend or cut/weld a little dog leg to angle it down a lttle further. it passes emissions everytime.

SilverSFR