2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

rear mounted turbo

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Old Mar 23, 2005 | 05:22 AM
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rear mounted turbo

interesting concept...but this would have a lot of turbo lag
http://cgi.ebay.com/ebaymotors/ws/eB...category=33742
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Old Mar 23, 2005 | 05:39 AM
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Originally Posted by Travelintrevor
interesting concept...but this would have a lot of turbo lag
http://cgi.ebay.com/ebaymotors/ws/eB...category=33742
couple of guys were talking about this on the forum before, but like you said way to much lag potential be good fro strait aways or WOT purposes only, not to mention suck in a lot of water and other crap through inlet do to location.

wonder how they are doing the oil lines? more of a PITA i think than required, however probably wouldn't require an intercooler due to location....
kenn
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Old Mar 23, 2005 | 05:50 AM
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Thats fucked up, I've never seen anything like that before. Like kenn said, only good for WOT practices, cause throttle response will be very poor.
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Old Mar 23, 2005 | 06:30 AM
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well to answer your quastion. i doubt it... sts makes these for cameros and stuff and they work great ill see if i can find a link but they use dual ball bearing turbos ... but this says its using a stock turbo from a turbo 2... so i cant imagine piping all those lines efficently... also lag really isnt that bad because u dont use an intercooler the flowing air over the lenght of the car cools it enough. but notice the pics... ones a truck, and the other is a fwd... so theres no pics of it on the car... and the last actual pic is soulassassins if im correct... it could work... but i doubt it, maybe if the guy had pics and vids of it on a 7 id buy it but =P the real deal is here http://ststurbo.com/ and if u look around u can find the pics he used on there... under civic/integra and tundra. bogus

Last edited by Tovock; Mar 23, 2005 at 06:33 AM.
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Old Mar 23, 2005 | 06:31 AM
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Also you loose much of your exhaust heat energy in the long tail pipe run.

And who wants their fresh air intake there?
It's a dirty low pressure area.
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Old Mar 23, 2005 | 06:36 AM
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read some of the articles on the website.. looks promising. not polished, but promising. id like to see some direct comparison tests with traditional setups in the same price bracket..
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Old Mar 23, 2005 | 07:02 AM
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well there is this

http://ststurbo.com/remote_mounting___

no additional lag??
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Old Mar 23, 2005 | 07:50 AM
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Originally Posted by StupidEbayAd
Produce 5psi If you up the boost without proper tuning you may blow The rear seal in the engine. I have tested this kit for 2 years in the making and it runs perfect at 5psi.
"Blow the rear seal?" riiighhtt :p

And if you've tested the kit for two years, why dont you actually have a picture of it? :p
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Old Mar 23, 2005 | 07:58 AM
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Also consider that the official website has a whole wad of made up statistics and graphs. I wouldnt trust buying a replacement lightbulb from that place.
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Old Mar 23, 2005 | 08:01 AM
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I think it would be funny if somone just cralwed underneath ur car, unbolted the turbo, and walked away with it.

Damn, there goes your $700.
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Old Mar 23, 2005 | 08:17 AM
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I've always thought about creating a box in the rear passenger bin that could hold a "Mid Mount" turbo.
just have a door on the box also so you can easilly access from inside the car.
althought I would probably never do it, that would make it just that much closer to the engine!. and it's a good place with lots of room.
I suggest the sealed steel box, because it would reduce noise, fumes and prevent exploding things from hitting you while drving
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Old Mar 23, 2005 | 08:22 AM
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I've seen a rear-mounted turbo make some decent power on a Camaro (they dyno'd it on Horsepower TV I think ) and lag apparently wasn't really an issue. I don't know how well it would work on a rotary though, especially using the stock turbo. Cool idea though.

Wouldn't you be worried about someone stealing your turbo? I know I would...
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Old Mar 23, 2005 | 08:43 AM
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Pshh, no one would steal that turbo, who knows if it is there?

Also, on the sanity of a rear mounted turbo: turbos like using heat to create power, you want them close to the engine. The catalytic converter makes heat, maybe stick it behind the cat?
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Old Mar 23, 2005 | 09:07 AM
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$2800 LOL, dude for 2800 you buy a jdm 13bt and streetport it and rebuild it. What a waste of money but good/unusual concept. I'm sure it works, but why waste $2800 on 5psi? That'd jump an NA to what like 190 at the flywheel.
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Old Mar 23, 2005 | 11:46 AM
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i have seen it in person on a s10. it atcually was not that bad. the cut a hole in the bed for the filter to go up and get it away from the dirt. I dont remember the HP #s but there was little lag. I have a WRX and I have a front mount. there is almost 10' of piping on all that. the only problem they have with the rear mounted turbo is the heat loss and oil. on that s10, they had to put an electric oil pump because the s10's pump could not handle the extra flow.
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Old Mar 23, 2005 | 11:50 AM
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That's SA's car in that picture.
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Old Mar 23, 2005 | 11:53 AM
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where talking about the concept of it, not the price, no one would buy that ****,.. but i am sure one of us might want to build our own, and i saw the episode were they used a rear mounted turbo on a camero, i was like damn, but i dont thing i have enough room for it lol
impressive numbers tho...
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Old Mar 23, 2005 | 12:04 PM
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Yeh, numbers are pretty fantastic when you make them up
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Old Mar 23, 2005 | 12:09 PM
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I don't think it's really all that impressive. It seems more like a cheap hack then a reliable alternative to mounting a turbo. The lag would be bad and it would also be really loud. You would have to use a strait piece of pipe from the manifold back to keep the pressure up and then no mufflers...it seems like a waste to me.
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Old Mar 23, 2005 | 12:41 PM
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all I know is soul assasin can get paid for these idiots at STS turbo for using his car to sell their stuff. That is if this kid is employed by them.
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Old Mar 23, 2005 | 12:48 PM
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works great on camaros and most of the vehicles STS has put them on, even an integra. Sure beats the hell out of trying to get the setup in an fbody underhood area. Trucks use it b/c it's an easy bolt on/off that you could uninstall in 3hrs or so. We've got a guy in Greenville with the STS kit on his Silverado, does really well.
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Old Mar 23, 2005 | 12:58 PM
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What I don't get is why we would even want to do this? It totally destroys the advantage of strong exhaust pulses from the rotary, and our engine bay is big enough to mount most any turbo you could ever want (lots more space up front then out back).

And I can't believe that lag is not an issue. Maybe not for straight line, but try running that on a road or autox course.

And the exhuast energy loss from piping that large must be significant.
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Old Mar 23, 2005 | 01:04 PM
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lag isn't an issue, not with the setups that are sold for larger engines. The STS integra still gets full boost by 3000rpm and 2-3psi at throttle tip-in below 3000. On a rotary? Probably a completely different story. i agree that the key there would be 2.5in piping and small charge piping to keep velocity up.
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Old Mar 23, 2005 | 01:27 PM
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yeah, but you are all leaving out the best advantage. it could put down over 200 at the wheels if put on an n/a, and you could keep telling everyone it's n/a. oh yeah, that and the obvious wieght distribution advantage
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Old Mar 23, 2005 | 01:38 PM
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Originally Posted by rayden
yeah, but you are all leaving out the best advantage. it could put down over 200 at the wheels if put on an n/a, and you could keep telling everyone it's n/a. oh yeah, that and the obvious wieght distribution advantage
I'd hardly say that's an advantage. A properly tuned T2 with stock turbo would easily beat an NA with that thing bolted to its ***.
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