Abby Normal

Anyone know any details on this car?

http://www.clearimageautomotive.com/...ar%20Turbo.htm

Sorry if a repost, I had never seen it.

Jim R.

Don't know, but it looks like it fits an automatic.

Jim

michaelathome

I don't think that I would like it back there. It is just another low point on the car to bottom out as if these cars aren't low enough and the spools are wide open like that? What about road debris or waterspray in the rain. Adds a new meaning to "Hunny I'm gonna be a little late as it's raining here. Didn't you know that melt in the rain?"

Michael

heinrich

That looks like the one here in the PNW, before they put the turbo temporarily onto Tom Iddleton's black car while the original tired engine on the red car was being rebuilt.

Imo000

Water ingestion shouldn’t be an issue. The air filter can be easily installed somewhere safe (up behind the rear bumper). I’ve seen these pictures a few years ago. They created quiet a bit of buzz when they were accidentally posted. I think this setup would work really well, after all there is a company (STS) that builds systems like this for all types of vehicles.

heinrich

Personally I'd instal the air filter up in the rear bumper cover.

SwayBar

That looks pretty cool; the plumbing is very tidy.

It's too bad they don't have a dyno-chart posted.

Tom. M

Yep..that's JT's car... the motor has been rebuilt and is almost ready to fire...9:1 CR...ready for some real boost . That setup pictured has been on my car for a year or so and 5000 miles....all the while tweaking away at all the little things that come up ...(all you boosted people can understand I'm sure)...The dyno results will be forthcoming...I've been extremely busy with all things non-928 ...but it'll will happen....and once JT's motor is going..he'll break it in normally aspirated...and then add another rear turbo setup...with some before/after dyno's.....and now that Chuck has an 88 AT...he'll be adding a rear turbo there too....

BTW..JT's car is an 89 AT..so it does fit on the auto very nicely..my car is a 89GT....and Chucks..as listed above is an 88 AT...

I gave my driving impressions a while back..but simply put..this system is like having GT cams..on steroids....nice pull on the low end..and then that endless push you in your seat....do you have the guts to keep the gas pedal floored feeling

later,
Tom
midlman@rennlist.net
89GT (or is that 89 RT )

Also, I have driven in torrential downpours with the setup..and no water ingestion issues at all. The turbo sits tucked up where the rear muffler used to be...way higher than you think......the weissach axle would be ripped out before this thing bottoms....

zoltan944

i can't pull up the link, ive been trying for 30min

G Man

I would love to install one of these on my 84'. Don't know what would be required for the fuel system to handle the increased air flow. Would stock injectors and a RRFPR do the job?

GUMBALL

The fabrication looks very well done, and the lay out is very tidy.
But I have a couple of reservations...
(1) turbo lag - with that long an intake pipe, it will take a noticeable amount of time to spool up the turbine. And with that, there is usually "run on", where the turbo (at full speed) continues to produce boost after the driver has lifted his foot.
(2) oiling - what size line is feeding the turbo, how much pressure at the bearing? And what about oil return? Is there a scavenge pump close to the turbo?

I am not trying to belittle your project, I am merely suggesting a few points to consider. I hope my concerns are groundless. Please keep us appraised as the project nears completion, I would like to hear results, and see dyno numbers.

hybred

alot of naysayers had issue's with sts kits when they first came out saying that mounting a turbo so far from the motor would result in loss of heat/expansion=lag. i see in that pic the hot side piping is jet hot coated so i'm sure that will help. mostly it's all about using the correct turbo trim, a/r ratio ect. while not as efficient as a front mount they are obviously simple to instal and for the average person with a street car quite sufficiant. i'm planning on doing the same. the rear mount muffler location is a perfect place to mount a turbo as the trunk pan is recessed. the only issue over a "conventional" set up is the oil return issue. most turbo set ups have gravity oil drains and a rear mount requires a pump and/or sump tank. on the plus side, the longer charge pipe from the turbo to the engine should help cool intake temps like an intercooler would. as for fuel, the amount of hp you would want to achieve is where your fuel requirements will be. that's one part you can't skimp out on. lean a turbo motor and it's game over. i'm converting my cis to efi with a stand alone controller (megasquirt) . i'm planning on roughly 400rwhp so at a minimum a 225lph inline fuel pump and 39-42# injectors will be needed & ofcoarse a boost referenced fuel pressure regulator. lastly, one of the most important things is the use of a wideband a/f meter. standard a/f gauges arn't nearly as accurate and can't "see" a/f ratios where a wideband o2 can .(where a turbo motor opperates) a wideband is more accurate and doesn't fluctuate like a elchepo a/f gauge. you're question about "run on" or boost after a driver lifts his foot is why they use a blow off valve. when you take your foot off the accelorator the throttle blades shut and the boost has to go somehwere. depending on where you reference the boost signal from will vary how quickly the response of the blow off valve.

goldknight

Hi Gumball, Let me take a shot at your questions, I have had the pleasure of helping them work on this kit.

AS to lag... since its a add on and your not lowering the comp. ratio of the car, there is no feel of turbo lag. (now just so were on the same page turbo lag is slow response you feel between hitting the gas and then heavy acceleration. (very simplified)) With this kit your car feels stock below boost then as boost climbs wooohooooo!!!! On Toms 5 spd he hits boost by 3K normally and by 2K under load ( hills) On a auto boost should come on sooner due to engine load. About time that slushbox gave us a advantage somewhere.

As to the oil lines i dont recall the line size 1/4 to 5/16 i think. IT is pressured from the motor, (oil filter adaptor) and yes a scavnenge tank and pump sit next to the turbo.

They have made a few dyno runs and the power is near 400 reearwheel and were still tunning out some kinks.

pmotts

Hi Thurston,

Was Tom's car dynoed? I was at the session where JT's was dynoed and I don't think it was close to 400whp, but there were motor problems. It would be cool to see the sheet if Tom's car was dynoed.

goldknight

yeah it was dynoed, We will have to see if Tom has the sheet. It is supose to hit the dyno again soon.