therm8

I'm glad to see someone doing this. I wanted to, but don't have the facilities or the motivation to pull it off.

Maybe once you get it up and running well you could partner with STS and get some royalty checks. I seem to remember them not wanting to tackle the ecu, and thus dropped the idea altogether for the 8.

I am curious as to what it'll sound like. I'm not really expecting anything pretty though .

Brettus

iTrader: (2)

very innovative - can't wait to hear how it drives .

Aseras

Going like a STS route huh? http://www.ststurbo.com/

maybe get some ideas here too http://khturbo.net/rmtz24/RMTZ24.html

just don't melt your gas tank. ( it is right beside the muffler )

rotorocks

Yes I know, but there is going to be a double insulation between the turbo and the tank: 1 the muffler wall, that I specifically left intact on top, and the actual stock heat screen. so it should be fine.


I have no clue. Though they say it is not loud, I am hoping it is to be true, as none of them have it installed on a 10K rpm revving engine.

I do believe it will compliment the rotary sound though with a high pitch jet like whistle. We'll see. :-)

rotarygod

If sized properly, a rear mounted turbo will work just fine. It won't be a 500 hp monster but it can be a very nice gain on the street.

The best way to learn is to actually try it. I've experimented with manythings that people said wouldn't work very good. Some worked great and others didn't but I wouldn't have found out without trying it.

rotorocks

And I am full steam ahead for trying it :-)
Just waiting on MazsportScott to get my Int-X mailed to me, and the damn internal Wastegate flange with actuator (back order) to arrive, so I could finish with the hot plumping. then on to the oil feed, Intercooler tubing, gauges...
I'ts coming along nicely.

rotarygod

Where do you live? We need some other members to see a rear mounted turbo firsthand.

rotorocks

Lake Worth, FL

florent75

wonderfull idea

really nice

some questions :

how can you fit the 80 mm pipe under the car front the back to the front and connect to intake manyhold ??not a lot of space under the car for a big pipe


how would you protect the air filter ?? perhaps in the rear bumper ??
not easy to find the right place : keep clean and easy to access and can have cold air ....


good luck ...

silverwolf

im in orlando...

rotorocks

Yes it does seem to be tight but then I am not running 80mm tubing. I will be using 2.5 tube, which is much smaller.
The reason I want smaller tube, is because it'll help reduce the time to pressurise the system, plus off course the space...
I haven't started with the intake tubing yet. Once I am at that stage, I'll deal with it.
Other idea I had is to run 2 or maybe 3 smaller tubes like 1" running in parallel. It would definitely provide a better charge cooling and the space would not be so much of an issue, but 2.5 does have the advantage of ease of fabricating. No need for any sort of 1 to 3 and 3 to 1 adapters, that I'd have to make myself. (Unless anyone knows of a place where I could get such 1 X 2.5 to 3 X 1" or whatever adapters)
So far I need my waistgate flange to come, So I could complete the turbo/exhaust unit.
Intake filter is actually the least of my concerns. I was planning to keep it just where it is on the picture it will be safe there. The entire bottom portion of the muffler will have a removable aluminum cover, which I'll attach when all the internals are in place, so it'll prevent the water from getting on the filter.

florent75

but the filter need air .. no ????

other question

sometimes when I drive (I've removed the cat) I've got backfire ...
it will not damage the turbo ???

rotorocks

Are you saying there is not enough air under the car?

I doubt it. All cars backfire. Cat Just muffles it.
You probably never seen/herd backfires on turboed cars...

florent75

yes

lots of air

but filter is not in the wrong direction ???



for the backfire ... yes for sure

in fact I was asking if you can damage the turbo itself with the backfire inside the turbo (not after) ...

Bart!

No it can't.

rotorocks

Not only it can, it already has been pulled off.
Just under 3K and that includes parts that I will be selling off, as they are unnecessary because I decided to go with something different. This $3K also includes an Interceptor-X and a MIG Welder.

Basically without the Int-X and Welder everything cost me just around $12 -1300.

Off course I do all the fabrication work myself.

Bart!

Well obviously if it's used, and if you have a shop you can use as well as the knowledge of TUNING.

rotorocks

All Parts are brand new, my shop is my garage, my lift is a jack and a bunch of bricks... Anything is possible, if one is willing to put some time into research. I had spent more than a month just shopping...

Actually If I did not get impatient towards the end of my part list, I could easily manage into $2500, but once the wheel begun to turn, it is kind of hard to resist making rush purchases, thus I overspent a little bit.

All I am trying to say, is that you shouldn't say IMPOSSIBLE, NO, CAN'T... until you know that it is a 100% certainty.

rotarygod

Oh give me a break! You don't think someone can build a turbo kit themselves for less than $3000? That's not that hard to do. You aren't going to be able to do it and then sell it for that to make any money but that's different.

A turbo doesn't ahve to cost much. I can go to Turbonetics, Texas Rebuilds, etc and buy a brand new T-04B for about $450. New! That turbo is good enough for about 350 hp on a rotary. A blow off valve can be had for fairly cheap anymore. You can spend anywhere from $30 to $200 depending on what you want. I personally have one that cost me $125. A wastegate can also be cheap or expensive. They can range from $50 to $400 depending on what you want. If you have a small turbo for modest gains, maybe you want a wastegate that was built into the turbo. Piping need not cost a lot. It depends on what you want. Stainless steel always costs more but is it really needed? In this case he is using so little new pipe, there's no point. He just really needs intake pipe and taht can be aluminized steel. It'll be fine. It doesn't need to be pretty. As far as ecu options go, he could use an Interceptor or go a cheaper route such as the emanage if he knows how to mod it properly to get full control.

If I add up the expensive parts above, we get $1050. An ecu can range from $500-$1600. Misc parts may run a few hundred dollars. If he can weld and fabricate himself, he'll save hundreds.

How can this not stay under $3000 again?

Wanganrx8

I understand that the 8 is a fairly new car and may be a pain to work on but just as mentioned before most of the parts aren't that pricey, if you can do the work and tunig on your own then more power to you. Not every high horse power car was built with some expensive kit. There are pleny of super fast turbo cars out there that were built in someones garage. I have a friend with a 600whp supra and guess what? he picked out all his parts, put it together on his own and tuned it on his own, no shop helped him, and he spent around the same amount of money as i did on my "turbo kit". If I had a desent amount of knowledge about tuning and knew what i was doing then i would build my own kit too.

XDEEDUBBX

nice build-up btw. Last month I saw first hand a twin turbo bmw M5 (rear exhaust turbo ofcourse) The car was making 800hp to the wheel..

Wanganrx8

I'm sure this was posted somewhere but i just missed it. but are you doing fuel too?

rotorocks

Not right away. I want to get it running with stock everything, and then do a fuel system upgrade as I start raising the pressure.

its like ROGONZA put it: First do the swap, then build up from there...

Wanganrx8

yeah smart move, i probably should of done the same thing, now i have to run even lower boost than normal, so i don't risk blowing up the motor. But fuel shall come soon. lol

rotorocks

Got a link?