1600 EFI Turbo Build

[MarioVelotta]

Alright. I have been working on my 1600DP for a couple months now. And I am to the point where it's just about ready for the turbo.

Here is the thread of what has been done so far http://www.shoptalkforums.com/viewtopic ... 6&t=141598

But to get up to speed here is what I am starting with



Right now it had a pretty solid tune in it. I took it to the Dyno and did some base line runs before I go turbo and here is where I'm at

87.5tq 59hp


Quick video and one of the pulls


Now, I want to develop a turbo kit as an add on for for my EFI packages. I have been working with Shag55 to get a turbo that is appropriate.

What seems like a good fit is a T3 .36 a/r turbine with a 50 trim compressor. This should get the little guy spooled quick and be pretty efficient on the cold side of things while leaving some headroom for a larger displacement motor as well.

I'm still trying to decide if it's worth the effort to build a header in 1 3/8" to get the best performance or just go with a more standard 1 1/2" for ease. Another decision still up in the air is to go internal or external wastegate. It is almost a wash in price just because of the extra time involved with making a internal wastegate fit under the confines of an apron and have the turbo positioned correctly. Unfortunately I don't have the funds available to get both.

So there it is. I am open to suggestions from everyone to make this a worthwhile venture that suits more than one application

[shag55]

You are right Mario. The 1 3/8 would be ideal but getting a decent collector is difficult. I'd go external gate to leave options open and for easily adjusted.

[T-34]

Are you developing a kit for sale or only for your car?

I had to think quite hard about how far to go with my supercharger kit. Too expensive and people might just opt to build a bigger motor - I figured that there is only so much money people will invest on a stock 1600. I decided that for my kit is had to be affordable and also much cheaper than increasing the capacity. I would recommend setting the budget before you start.

If cost is no option - Go with the external gate. It will give you more options for tuning. Internal is obviously better on the pocket.

Either way I personally would go with the 1 3/8 headers. Chances are that you will be better off getting the headers made up - If you are supplying a kit it will be cheaper to get your own headers manufactured than it would to buy in generic ones and then sell them on. The Dyno figures will help to sell your kit - there are other 1600 kits out there - might as well give yours the edge by taking every advantage you can.

Looking forward to seeing how this develops.

Mick.

[MarioVelotta]

Shag, I was able to find a collector. It's not a burns but should get the job done. I'm not sure of the output size but it will need to be formed anyway. Thoughts?



Mick, I would like to sell these along with my EFI packages. Cost is important but I also want it to work well. I know you can do a junkyard turbo build for $300 but that isn't an option here. I figure the add on is going to cost around $1500. Half of that being a reliable new turbo wastegate and blow-off. Then the Header, flanges, oil supply and drain, sump and intake pluming etc.

The header will be the toughest part but I don't have enough finds to pay for a bulk order. Shag or I will be making the initial header then a jig built up from the final design to be replicated.

Also all of the other "kits" I have seen put the turbo in the engine compartment, I don't dig it.

[MarioVelotta]

I ordered my turbo from Shag so that's a good step forward but I still have lots of parts to get

[Clonebug]

What did you order???
I'm curious to see what size it will be in comparison to what I run.

[MarioVelotta]

What did you order???
I'm curious to see what size it will be in comparison to what I run.

T3 .36 a/r turbine with a 50 trim compressor

[miniman82]

Factoid: that's the same turbo BMC used on the Metro turbo. Also, the ERA turbo Mini I think.

[MarioVelotta]

I thought the 1L motors had a .25 A/R

[miniman82]

Oops, you're right. And it was a 40 trim compressor too. Either way, dinky little things.

[shag55]

Dinky! Lol.
Shipping it today Mario

[MarioVelotta]

My Turbo came today! Now to get the rest together. I hate waiting

[Clonebug]

What are the sizes of the compressor wheel inlet and the turbine outlet???

It looks pretty close to the same size I am running right now.

I'd be really interested at what rpm it gets to full boost or in my case 13 lbs.

[MarioVelotta]

You started with a standard header. Was it 1.375 or 1.5"?

[Clonebug]

Are you talking to me???

It is a 1 1/2 inch header.....typical cheap sedan header with the really short collector.