Blitz twin turbo installation

[Wez]

Great work guys

[NeoFuture]

a truley amazing write up, ow do the NA-T ill provide the car as a donor, and have it back all finished

[Steve]

Well done Tony. Thanks for doing this great write up. Will prove very helpful in the future

[AndyT]

Well done all. Great result and thread...

[Chris Wilson]

A truly magnificent write up Tony, well presented and illustrated, and very readable indeed. Hope it gives you as much fun as I am sure it has given other people pleasure reading of your endeavours.

[Stu Hagen]

I find this thread truly amazing in its detail and the journal you have kept. I have been a supra owner over here in the US for years, and I write many tech articles (see my web page) and I havnt seen such a detailed step-by-step journal like this before. I also envy your garage/tool set up~!

I have a question. I have just completed my Hybrid CT-12 USDM Turbo package. It will use Garrett GT28 non-ball bearing turbos. It will also be sequential. The reason for this post is that I wanted to know more about how you installed the water lines. Either I missed it, or you didnt go into that detail. I saw that you plugged the 2 water lines at the neck, but I could see where you eventually got your water supply for the turbo. Unless of course your not using them. Also, where you using 2 separate oil/return/feed lines?

Sorry for dredging up a older post, but I did get carried away reading every page~!

Stu Hagen
www.97supraturbo.com

[Tones]

jesus, only seeing this now, some write up, ball ache of a job! well done that man

[TLicense]

Originally Posted by Stu Hagen

I find this thread truly amazing in its detail and the journal you have kept. I have been a supra owner over here in the US for years, and I write many tech articles (see my web page) and I havnt seen such a detailed step-by-step journal like this before. I also envy your garage/tool set up~!

I have a question. I have just completed my Hybrid CT-12 USDM Turbo package. It will use Garrett GT28 non-ball bearing turbos. It will also be sequential. The reason for this post is that I wanted to know more about how you installed the water lines. Either I missed it, or you didnt go into that detail. I saw that you plugged the 2 water lines at the neck, but I could see where you eventually got your water supply for the turbo. Unless of course your not using them. Also, where you using 2 separate oil/return/feed lines?

Sorry for dredging up a older post, but I did get carried away reading every page~!

Stu Hagen
www.97supraturbo.com

Hello Stu,

First off, nice website! Also well done on the work you've done on the stock twins. Makes for a pretty cool set-up.

My turbo's are only oil cooled, so as you mention I plugged the water lines at the neck, and also plugged the feed from the water hose that runs around the back of the block.

For oil feeds, I used the two feeds on the side of the block that supply the stock twins, and then used the stock return.

A caveat here that I've just discovered myself, () you shouldn't use rubber nitrile braided hose for the turbo oil feeds. It can't cope with the heat soak from the turbo's, so over time will perish and then leak. (It's quite bizaare to just see oil appearing through the braid!) You need to use higher temperature rated teflon hose, preferably with a heat wrap / flame cover.

[Batmax]

Hi

Congratulations for your time to post these nice Thread.

Today I have intalled my fuel pumps of my single and I turn the ignition off and they still running I notice int these pic you put the red wires but I put one red of the pump to the blue stock wire and black wire pump to the black wire stock connector, why you put the 2 red wires ?

[TLicense]

Because they're both 12 volt power feeds. 1 to each pump. My ground is connected external to this connector, through the pump hanger and then to a good ground on the chassis:-

Here's how the ground wires were fixed. Don't worry the bolts aren't annodised so they will conduct fine. (I measured 1.6ohms from the power supply, through each pump and back to the hanger). I used nordlock anti-vibration washers under the ground wire bolts to prevent them from ever vibrating loose:-

By doing it this way, each side of the stock connector is only seeing one pumps worth of current. If you connect both pumps through the stock connector then it's rumoured to end up getting quite hot.... not good in the fuel tank!