2.7 turbo motor,hope picture comes in

[bb]

Here is a picture of the 2.7 that I rebuilt last winter. It has been running perfect all summer. This winter I am going to change the exhaust system so that I can improve performance. Oh, yeah, I'm going to update to GT2 look.

[bb]

How do you get pictures that are too large in size down under
the size that this forum will accept, this is the only one that had a small enough file.

[Adam]

bb,

You could host the pictures remotely and imply insert html links within your "[img]" tags or use Photoshop to resize them. Warren Hall frequently recommends a program, but I forget it's name.

Can you tell us more about your 2.7 turbo? What kind of heat sheilding do you have near the turbo? What kind of boost levels? Stock Compression/CIS? I'm very interested to know more!

[dean]

What I do is resize a copy of the image and right click on the resize and check the propertys to get it small enough

[Targa77]

BB, need more details and pics guy. Did you turbocharge a stock 2.7? What kind of mods did you perform on the motor itself in order to run a turbocharger?

[bb]

It is a stock 2.7 S motor, with CIS. There are no heat shields near the turbo, and it has stock Compresion. I will get some more pic's in the near future. It seems to be a very simple kit. The kit was installedin 1977 on the car. I just rebuilt the motor top to bottom as well as having the cases timeserted. The turbo seems to come in late in the rpm's but it comes on strong. Right now I am working on a new exhaust that will help this problem. It has the original exhaust. only change was where the y pipe was shortenned.

[Rich911E]

This is a pretty cool idea. Could you provide some additional pictures of this installation and the changes involved (before I throw out the CIS fuel injection system I have in a box).

I would bet that some of the newer smaller turbos would be perfect for the 2.7 engine's RPM range or use the ceramic turbos from the Isuzu Impulse that spool up very quickly.

Neat idea.

Rich

[bell]

bb, looks great, i've been meaning to ask you how it's been running since the last time we talked at firestone.
on of my friends just bought a 90' c2, black with tan(looks white) leather. he'll be a pelican head too soon i'm sure. wow....there'll be 3 of us within 20 miles of each other.

[MotoSook]

Wow! That is imaginative. When I first looked at the picture, I thought, there is still a stock air box, but then I see that the CIS boot has been replaced by the pulling to divert the air from the air sensor plate to the turbo and then back to the throttle. Cool. I wonder if the Knox Supercharger for the SCs use the same principle.

I wonder if a Jackson Racing supercharger can be used with similar plumbing. Anything is possible I suppose.

BB, What kind of power does that thing produce? Do you have a dyno chart?

How does the system compensate for more air? Does it rely on the increased height (forced air) of the sensor plate?

What is that sensor looking thing on the intake abbove the throttle?

Souk

[GenX Porsche]

Where did you get this kit? Did you assemble it yourself? I have a 2.4 CIS and I was wondering if I could slap one of these puppies on to give my car a little extra boost of speed? Do tell.... I am also assuming you have to use a turbo tail. Any one know of a way I could get a turbo or a supercharger in my car without putting a turbo tail or something of the likes on my car?
David

[911pcars]

It looks like a BAE turbo kit from that era. I think they ran about 5 psi boost. Enough for an add'l 30-40 hp w/minor mods. I think Juan Ruiz had one of these.

Sherwood Lee
http://members.rennlist.org/911pcars

[dougcl]

Hmmm, that looks familiar!

[bb]

bell: the car has been running perfect all summer, I got a set of headers coming for this winter's project. We are also going to paint it and possibly go to the GT2 look.

The kit was a BAE out of California. It was installed by the previous owner ( I still have all of the installation information). the PO kept records back to '77 which is when he bought it.

It seems like such a simple kit that I would think anyone could do it. They took the top "piece" off of the CIS and ran the two pipes right from the turbo. On the exhaust all is seems they did was shorten the pipe from the heat exchangers to fit the turbo. Ran Oil from the pressure sensor at the rear right hand side of the motor and drilled a hole in the cam cover for the oil to go back into the motor. It will be a little while but I will post better pic's


Also if anyone is really interested I can scan and email the instructions from BAE.

[dougcl]

Yes bb, I would like a copy of the installation documents. The P.O. didn't keep mine. Snail mail would work for me if scanning is a pain.

I have replaced all of the tubing on mine, so I have all of the original BAE exhaust and intake if anyone is interested. They would make great templates.

Doug Clauder

[MotoSook]

I would like a copy of the instruction too if you don't mind (please). If one of you has the time, pictures would be great!

Thanks,

Souk

[Adam]

If you're planning on scanning the documents, I'd be very interested too, please!

[Turbodrvn]

dougcl: I think we may discussed this in the past; but what intercooler is that?? a Japanese car?? (3000GT? Supra? Rx7). I'm curious to eventually intercool my '76 930 without modifying my tail (retain factory look wing); so I would like to use a small intercooler.

Thanks in advance!

[dean]

The problem with a small intercooler is that it can cause you to have a boost restriction. Very bad

You have to figure the cfm of the turbo then get the charged side area big enough to flow at least that amount of air or more.

[dougcl]

This intercooler is made from an 89 RX7 core, with tanks (3" Al tube) and tubing (2.5" Al) from www.burnsstainless.com. I had to make it myself because I wanted to leave the deck lid unaltered (personal preference). The whole thing cost about $200, and should be considered an experiment instead of final "product", but it works so well that improving it is not on my list right now. Unfortunately, I do not have inlet-outlet temps and pressures to give you, but I can say that the head temps (at #1, according to my VDO gauge) dropped by roughly 40F on average. In other words, under normal driving situations, the head temp used to run about 250, now it runs 210. This is a low boost system, 5 psi, so some may question the value of an intercooler at all, but I feel a lot better about running cooler head temps for engine longevity and detonation prevention (it used to really bug me that the inlet pipe was sometimes too hot to touch). The car seems perkier, and no noticable increase in lag (not much lag either way with 8.5:1 CR).

On boost restriction, there's no substitute for a flow test, I suppose... which I haven't done. However, since it makes boost fine without appreciable increase in lag, and lowers intake temps, I figure the setup is of sufficient size for my boost level and displacement. Sorry I don't have better data.

[dean]

If you want to test the pressure drop across the intercooler, it is fairly easy. Hook up a boost gauge before the intercooler, and measure. Then hook up the pressure gauge after the intercooler. The difference is the loss in the intercooler.