Rear mount turbo CRX
 

Ok, so. . .
First off, I am in the process of building and ls/vtec for boost. That being said, I have recently fabbed up a B18B torque mount to use a D series A/C compressor in my CRX. A/C is currently installed on a B18B that I have in my car. As I was looking in my engine bay today and thinking how the hell can I fit a turbo in there now(?), I realized that I wont be able to. Even with a sidewinder manifold and an Odyssey battery in the fender.

So...

I'm thinking rear mount turbo. I'll run a DC header I have laying around, reduce the outlet to about 2" depending on the research I find out later (it's going to be mid next year before this will be done). What I think is logical to do for this type of setup may be completely off, and I'm looking for some insight. It would be logical to reduce the exhaust all the way back to the turbo (which will be where the stock muffler would sit) to 2" or less (right?) and ceramic coat the entire length and heat wrap it to keep as much heat in the exhaust as possible. the smaller diameter exhaust would keep as much velocity in the flow as possible to keep the turbo lag to a minimum...right?

I know I'll have to get an oil pump for the return and go get a custom feed line made. that's not a problem. My main concern is the exhaust diameter, and my interpretation of the physics of this type of setup...


I've already got the EG half size radiator. I looked at it, and thought about it. The only way I'm gonna have it up front is to do the "radiator under the radiator bracket" mod. That brace between the headlights. I've seen it done, but I forgot the name of the guy that did the writeup on H-T. Then, I'd be limited to a log manifold.

Still debating what turbo I should use. A 57 trim t3/t4 or a .48/.60 Garrett from a T-Bird...Looking for 350+whp

Please, feel free to throw some information or helpful links my way.

TIA!

Re: Rear mount turbo CRX
 

http://ststurbo.com/universal_system This might help these kits are crazy, there not civics but they are really SWEET!!! Horse Power did a seg on why remote is better because more dense exhaust gasses and cooling of the air dew to pipe lenght. HOPE this helps :)

Re: Rear mount turbo CRX
 

Information that is helpful is that doing that is a complete waste of ------- time.

Re: Rear mount turbo CRX
 

I could always do it, and if I dont like it, redo it as another setup...

Re: Rear mount turbo CRX
 

Holy ---- your stupid.

HP TV get's it's money from companies like STS to advertise that crap. If remote mounting of turbo's was the ---- cars would come that way from the factory and all the highest HP cars, and track cars would be using it... but guess what they aren't. ::)

STS is a hack company. You can EASILY turbocharge a B18B/C in a CRX, I've done it personally on several cars, with a/c and without.

Re: Rear mount turbo CRX
 

i agree that cost a typical "front" mount is cheaper and probably more efficient on a CRX.. it is useful on cars without physical space upfront for a turbo and piping...

Re: Rear mount turbo CRX
 

One of the fabricators that works for STS turbo has a remote mount turbo CRX. I can't remember his name now, but he's had it on there for over three years now and had no problems with it. He also lives in Utah where they salt the ---- out of the roads.

If I remember correctly, his car does high 12 second 1/4 miles passes with a stock LS/VTEC.

Anyways, if you want more info and pics of his setup, I'm sure you can email STS and ask for them. The guy is really cool.

And don't listen to people who don't have any experience with remote mount turbos. There are a LOT of myths aboout them, most of which aren't true.

I say go for it.

Re: Rear mount turbo CRX
 

Hey,

I agree with Wilcox - buck the trend and try something different. If it works, great! If it doesn't, that's also okay. Everybody is entitled to their opinion - all that matters is that you are happy with it.

Good luck!

Re: Rear mount turbo CRX
 

do this
Attachment 31818

Re: Rear mount turbo CRX
 

Ok am I the only one seeing only MAJOR downsides to remote mounted turbos??

:o

AHAH..

i want to see more of this passenger seat-mounted turbo setup!!! It must be getting pretty hot in that car!!!

Re: Rear mount turbo CRX
 

Think of how long your charge pipe would be and the pressure drop that would ensue. I think my install thread got lost during the downtime, but what about possibly using a stock b16 exhaust manifold and curling it up and off to the battery side? I did that on mine with a 60 trim t3 and a full size radiator. I'd say just buck up, relocate your battery to the back, and curl it off to the side. Downpipe is pretty easy too...straight across the front of the motor and down next to the mani.

Re: Rear mount turbo CRX
 

I am going to put an Odyssey battery in the fender. I dont want it inside the car, because of venting and having to put the power kill switch on the rear.

I have thought abou thte pressure drop up the charge pipe. I plan to run a 2" "runner" to the rear and 2" charge pipe all the way back up. Taking the same path up the exhaust tunnel. Going to ceramic coat and heat wrap the ---- out of the runner. I am thinking of using a .48/.60 T3 so the spool should be that bad. Full spool by 4 grand I would think. As long as I can keep that exhaust hot all the way back, it should spool decently. And with a 1.5', 3" downpipe cut to the ground, that ---- it gonna be nice. I'm looking forward to doing it just to see what it will do and how it will drive.

Re: Rear mount turbo CRX
 

3" downpipe is too big for a t3 48/60.
STick with 2.5"

To further enhance spool-up, you should consider a t3 48/60 upgraded with the mercedes wheel.

Re: Rear mount turbo CRX
 

you tryin to sell me a turbo? I'm willing to take donations towards the project. :l

Re: Rear mount turbo CRX
 

"For this reason turbochargers are ideally more efficient, since their turbines are actually heat engines, converting some of the heat energy from the exhaust gas that would otherwise be wasted, into useful work." http://en.wikipedia.org/wiki/Turbo

Re: Rear mount turbo CRX
 

I wonder what would happen if you go through a big puddle and splash the turbo when its really hot.
cracked housing, warped wheels or shaft, maybe a cracked seal or two.
have you considered how your going to run the oil return line, and have enough pressure to get it back to the oil pan?
if you figure something out post it.

Re: Rear mount turbo CRX
 

I trust Horsepower TV. The project civic they did was awesome. Gained nearly 11hp from a mere $1200 in modz y0. Not only was it a rocket on the streets, it also had those agressive street stylin looks that appeal to our generation of street rodders.

Re: Rear mount turbo CRX
 

Hey a fancy oil pump system is required for a proper oil return since the turbo is generally mounted at the same level as the oil pan.

I guess Everything must made to bring the spool up back to normal with such a setup involving miles and miles of piping. Maybe a ball bearing unit would be the best bet.
Sure, the crazyiest the project, the more chances you have to have shops and people DONATE stuff to you to make it happen. But I can't even DONATE a nice turbo to myself so let alone anyone else!

Re: Rear mount turbo CRX
 

People typically use mechanical pumps to pump the oil back up and then into the oil fill cap. Also, STS uses a hobbs switch by the pump wired to a warning light that will alert you if the turbo starves for oil. Here's a pic of the oil return on an STS vehicle. It drains the oil onto the top of the engine. It must be nice to not have to tap the oil pan!

http://i.b5z.net/i/u/1473169/i/gto/gtooil_small.jpg

Oh, and about the turbo getting hot and then cracking if splashed with water. Won't happen. I was actually there at STS when the garrett rep that they work with laughed about that question. He said it's not going to happen perieod. There are a lot of people who have remote turbos who drive them daily, through the rain, snow, even mud. They have a number of Toyota Tacomas and other trucks that get muddy as hell and don't have any problems. Of course, they have the turbo filter located in a place where it doesn't get muddy, or they have a K&N filtercharger jacket on them.

The guys at STS have done a lot of testing. Here's one of the times when they heated the ---- out of the turbo and did a full boost blast through a huge ass puddle.

http://i.b5z.net/i/u/1473169/i/tacom...ma%20water.jpg

Re: Rear mount turbo CRX
 

I thought we already adressed the oil pump question, but yea, I know it requires one. And I alreayd know which one I'd be getting. Unless I can somehow incorporate a mechanical pump into my belt setup...

yea, I was just kidding about the donation. :P

So, I'm a little behind...whats a mercedes bearing? I know journal and ballbearing...

Re: Rear mount turbo CRX
 

Holy Hell thats fucked up

Re: Rear mount turbo CRX
 

Its true that they built a gay ass ricer, but thats because they dont know ---- about hondas thats why they always have a gest on the show when they bring hondas into the picture. http://www.youtube.com/watch?v=2B2mwgsvikY how much horse power did they say it made??? Its not what i would do but then again when I tell my freinds about using a hf manifold I get the same kinda responses. When people dont know about something dosent mean that have to talk ---- about it. He trying something that few people have ever tryed let alone done.

Re: Rear mount turbo CRX
 

Chris, try two small lawn mower batteries for $25/per in parallel - EASIER packaging, practically the same CCA ratings and abilities. Consider mounting the turbo above the transmission and replace the rubber hoses with some rerouted hard pipe, make some heat sheilding. If you're snappy about it you could even get away with a traditional oil drain.

Try to spin a turbo with a blowtorch, then. It won't happen. Turbos are driven by FLOW first and PRESSURE (slightly modified by loss of temp) second. Your flow is dictated by the engine displacement and camshaft, everything else is a cosmetic detail just like sizing turbine AR to suit. ;)

STS kits work, but their fuel systems were scary when they first came out, and I hope they stopped making the MES claims they used to. Jeff "The Milkman" Creech of PINKS fame has tuned a couple upgraded STS kits with T67 or larger on them, they make decent power but they have problems spooling less than 15 psi due to system dynamics - so much for the Hot-Air-Heat guy's theories.

Re: Rear mount turbo CRX
 

http://www.khturbo.net for another resource on home built RMT setups. 10psi on a Cavalier V6 hit mid 12s. Also has the p/n for the Shurflo pump for the oil issue. Hope that is helpful

Henry

Re: Rear mount turbo CRX
 

ahah, your reading is as poor as mine. I never talked about a mercedes bearing. Never.
Mercedes turbine wheel. Because it has a larger major diameter and spools up quicker. that wheel basically has the major of a stage 3 wheel and the exducer or a stage 1. I have one on my focus, it spools significantly faster than the normal stage 1. On the high way at part thr, you can ear it spool full time so know it's ready. You don't need to step on it much to make it go.

Re: Rear mount turbo CRX
 

The shop I "freelance" at tuned a couple of STS kits on Camaro's. Mike squeezed out 450hp out of one of them. I don't have the specifics. I caught the tail end of the conversation with the customer.

Re: Rear mount turbo CRX
 

;D

Re: Rear mount turbo CRX
 

Sut up before buk hears this :l

Re: Rear mount turbo CRX
 

Why?

Re: Rear mount turbo CRX
 

Do they sell kits? They better be careful, STS has a bunch of patents on their remote mounting kits. I don't remember specifically what they have patents on, but I know they have a bunch. They got the patents long before they ever started selling kits so they could be protected against other companies making and selling kits like theirs.

Re: Rear mount turbo CRX
 

Nope, they don't sell kits. It is just a site detailing the process of doing a home made remote mount turbo, all custom stuff, piping, etc. No kits, he just has a few spare oil pumps for sale.

Re: Rear mount turbo CRX
 

I don't see why this setup seems to piss so many people off. They obviously work, the results show that. So if it works, what's the big deal? Ok, so there's more piping and you need to run another oil pump. I think it sounds sort of cool actually, I've seen a few cars with it, and they all look pretty solid.

Yes, I know humans are creatures of habit, and generally closed-minded, but if it works it works right?

Re: Rear mount turbo CRX
 

Did anyone notice that the side seat mount turbo setup car is weight reducted to ---- but he still has the deck in?

Re: Rear mount turbo CRX
 

lol ya when you have a turbo spooling beside your head you need something else to listen to

Re: Rear mount turbo CRX
 

Those two side mount turbos are too small to be able to hear if you tried. :S

Re: Rear mount turbo CRX
 

This is about as smart as putting your cock in a meat grinder.


ALL OIL MUST RETURN TO THE OIL PAN SO THAT IS GOES THROUGH THE FILTER.

Re: Rear mount turbo CRX
 

I have decided, I'm going to do the 2.0L ls/vtec with the T3 .48/.60 rmt. First I have to build the ls/vtec around n/a for a while just for my peace of mind. Then start project rmt.

I'm not looking for a lot of power. Anything over 250whp, I'll be happy with. Hell, I should get close to that with the 2.0L ls/vtecbuilt with a lot of headwork (which it will have) and an itr valve train/cams.

Well, I'm ------- drunk. I'm goin to bed. Oh yea, I do suck at reading. lol. My attention span and memory are about 30% of what they used to be when I cared. lol

Re: Rear mount turbo CRX
 

Cause he's gonna go back to posting the GM 4.3 all over again :X

Re: Rear mount turbo CRX
 

2.8/3.1 Gen II and 3100/3400 Gen III v6's are 60* motors, unlike the 4.3, so no real similarity. But good on him if he brings it up.

Henry

Re: Rear mount turbo CRX
 

250 WHP is stretching the hell out of the t3 48/60. (mercedes wheel or not)

but i am thinking now.... Since the turbo is that far away from the engine, maybe that 0.48 stage 1 turbine would still be Ok and just the compressor needs to be beefed up, resulting in an hybrid that is more disproportionate that I would normally consider acceptable on a conventional setup. somthing like a stage1, .48/.70, t3/T04E or something like that.