Possible to build custom turbo kit without relocate things?

[Wheazel]

Hi

Ive more or less decided to build my own turbo setup for my 2005 S2000. European version 2 litre. Right now I have the car in a narrow garage built only for winter storage and I have a hard time to measure the car to answer my own questions. Maybe someone here knows?

I am thinking a smaller turbo, G30xx and a lower boostlevel. Around 0,5bar.
(7.25psi) Aiming for an efficient setup with qualitycomponents and homemade piping. Do not want to lower the comp or change the clutch. I don't launch and I seldom drive track.
Is it possible to get such an installation together without having to move things around under the hood?

I would also appreciate recommendations on specific parts to get from modders with experience. All in all I want the setup to be able to reach min 300whp, and more prefered somewhere on the way to 350whp.

Got a friend with mad weldingskills who can help me with critical stuff.

BR Henrik from Sweden

[Wheazel]

Did get a reply on another forum, and have also been able to pull my car out to measure some and it is very possible to keep all components at original location. Also had a suggestion about the garrett gt3076r turbo.
I am still in need of advice where to find reliable quality components that wont cost my shirt. I will build manifold etx myself but are in need of flanges.
Also need all the rest, but have no idea where I can buy things from a trustable source.

[Jorsher]

Originally Posted by Wheazel

Did get a reply on another forum, and have also been able to pull my car out to measure some and it is very possible to keep all components at original location. Also had a suggestion about the garrett gt3076r turbo.
I am still in need of advice where to find reliable quality components that wont cost my shirt. I will build manifold etx myself but are in need of flanges.
Also need all the rest, but have no idea where I can buy things from a trustable source.

blaast performance sells rebuilt turbos for decent prices. I've heard a couple bad things, but far more good things.

If you have some fabrication experience, it's very possible to keep everything in it's original location.

[Wheazel]

Done some more research the past weeks and I did find a pretty ok deal on a Garret bb turbo here in Sweden. Question is if it is a good one for my application.
It isnt called anything in particular other than garret GT30 with A/R .70
The guy who sells it claims it is a slightly smaller turbinehousing than the GT3071BB.
He did buy it from a tuningshop in Finland, custom assembled to be good for 400+hp and very fast spoolup for track racing.
It is new and unused. Could this Turbo work for my application? I am looking for 325-350 hp at the wheels.

Did also check out the engine compartment (visited the car in the winterstorage) and found out there are pretty much space. As I see it there are 2 possible locations for the turbo. (I would like to keep the heatshield for the battery).
First one is straight down beside the motor as inlinepro kits have the turbo. Second position is infront of the motor on the exhaust side. (longer exhaust piping)
What would be the best bet? I am not after a flashy installation, I just want it clean and functional.

Regards

[Sikocivic]

I bought my S2k with the turbo already on it. He installed it in front of the motor so he would not have to move many of the other parts. Seems to work good.

[nfrs2000]

sickocivic you interested in selling your kit??? let me know

[Sikocivic]

Originally Posted by nfrs2000

sickocivic you interested in selling your kit??? let me know

NO WAY, I just bought the car last fall. I only drove for a couple of months before winter hit. I do love turbos though.

[kgf3076]

I haven't seen a turbo installed anywhere else on a S2000....

[nfrs2000]

Damn bump for you,where you located siko?

[2hondas]

There is a very good book on designing turbo systems from scratch by a guy named Corky Bell. The book is called Maximum Boost. I have had friends who have installed turbo kits on their vehicles that somebody else built and told them it would do great and it screwed up their car. I'm not saying that the one you're talking about is that way but s2000 engines are very tuned from the factory. You already have 11.1:1 compression in your cylinders and the usual turbo set up looks for around 8 or 9 to 1. That means that you will be very likely to screw something up if you just take somebody's word on it. Locate and evaluate the flow chart for any turbo you are planning on using...Turbonetics displays the flow charts for their turbo's on their website, so if you can match it to one of theirs then it should accurate. If you can't do that...talk to the shop that did the work and find out what they have to say.

If you're looking for around 350 horsepower the low boost will only get you partway there...I would suggest looking into some cams and lightening up as many of the pulley's as possible. You might look at a porting job also, depends on what you're willing to do and spend. Is there a specific reason you want that much hp or is it just a number that sounds good to you? You're getting into the very heavily modified range to get that much on the ground from a four cylinder engine.

[Sikocivic]

Originally Posted by nfrs2000

Damn bump for you,where you located siko?

I am in MN on the north side of the Twin Cities.

This a completely stock motor with the only mod being the turbo. I have the AEM EMS for tuning. As it sits right now boost starts at 2000 RPM and is at full boost at 3500 RPM. Motor made 300WHP on 7psi. The guy I bought it from said its a VERY conservative tune. I plan on hitting the dyno this spring and having it tuned for 10psi.

I have been building and driving turbo Hondas for about 8 years now and the whole idea of having to lower the compression ratio is not really true anymore. Its all in the tuning. If you plan on building a big HP motor then go ahead and lower the compression ratio a little. I have built low compression high boost motors and the do make more peak HP. If you plan on driving the car mostly on the street or doing some autocross, then I would suggest you go with a low boost motor with the stock compression. If you lower the compression ratio the car will make less power than stock until you start boosting. When you do mostly street driving, you are not boosting or boosting very little. You really notice the loss of throttle response on the low compression motor. I will never build another low compression motor for any of my daily driven cars. There are many ways to build a turbo motor but the one fact that you MUST follow on any of them is spend your money on good engine management. This will prevent many of the problems that people have with boosted cars.

Good luck with you build. Once you go with boost, you will never go back.

[2hondas]

in response to Sikocivic ... that is very true, you do start getting into drivability problems when you start going into builds like that...after i responded to the post also i found a lot of info about stock internals being good up to large amounts of hp. Some cars are unique in that respect.

[Wheazel]

Thanks alot for that pic!
Its exactly what im looking for. Gonna see where my turbo ends up, but chances are it will be sort of infront the engine maybe lower down. Time will tell when i finally get it out of winter storage.

I have decided I will buy a GT3071r with 1.06 turbine housing. After some more research and advice this seems to be the best bet.
Also settled on the Aem Ems due to the plug and play without having to rewire.
Question about this tho. I have a 2005 European S2000 with 2.0L engine. Will this be a problem when buying Aem Ems? Cant find any help on the Aem site, the supportphone does not support the ems and the forum does not send any verification mail so i have a hard time to become a member there.

Im looking for a nice shop where i can buy the ems, the turbo and a walbro fuel pump at a competitive price. Any suggestions? If they also had exhaust flange and T3 flange it would be awesome.

BR

[Wheazel]

Btw Sikocivic, where is the oilfilter located? And how is the exhaust shaped between the motor and the turbo?

[Sikocivic]

Originally Posted by Wheazel

Btw Sikocivic, where is the oilfilter located? And how is the exhaust shaped between the motor and the turbo?

Oil filter is in the stock location with a Greddy "sandwich" filter adapter. Thats where I pick up the oil line to the turbo.

The manifold is a crude log style that I am going to replace with a better one next winter. I will be building it myself. Everything else will stay where it is.

[Wheazel]

Ok, sounds like a good way of taking the oil. Where is the oil transfered back?

[Sikocivic]

The oil drains back into the oil pan. You will have to weld, or drill and tap, a fitting in the pan for this.

[Wheazel]

Yes the drilling/welding in the pan ive heard of, but is there any prefered location where its natural to do it? I have also read the return line shall be as high up as possible to not be under the oillevel, which might cause the oilflow to be too low.

Anyone got info of where water is best taken and returned for a ball bearing turbo?

Thanks for all the help so far.

[Wheazel]

The book Maximum boost seemed useful so I ordered it today. Thanks for the tip 2hondas!

[kgf3076]

Originally Posted by Wheazel

Im looking for a nice shop where i can buy the ems, the turbo and a walbro fuel pump at a competitive price. Any suggestions? If they also had exhaust flange and T3 flange it would be awesome.

Check InlinePro (http://www.inlinepro.com/). They have the kit, they have the know-how, they do lots of these (and other things as well)

[Wheazel]

Okay ill check them out again, but if my memory serves me they don't have the Garrett GT3071r on their site. Was thinking of them at first, haven't found an email adress either.

[Wheazel]

Did get my car from the storage yesterday and started to disassemble. Took off the front, the front sides, heatshields and airbox.
What is that electrical thingy that sits close to the oilfilter and might be in the way of turbo piping? (Is attached to the front of the motor on the exhaust side. Small cable running to it and then a thicker cable running from it to beneath the "DOHC VTEC" flate ontop of the motor.) Will take pics next time I go there as I didn't bring my camera yday.

[Sikocivic]

That is your Vtec. If the exhaust will be too close you can wrap it or make a heat shield.

[Wheazel]

Suspected that... will try to figure something out. Thanks.
Any idea of a good spot to put the oil back?

[Wheazel]

After some more thinking, self examination and estimation of time I will have available for the coming weeks before the summer is here, the project took a new turn today.

I ordered the complete setup from inlinepro, and also got extra flanges incase I somehow should have the time to replace the cast manifold by some smart homecrafted one. Anyway, it was in my eyes expensive but probably my best alternative. Who knows, it might be cheaper in the long run, and I got extensive help from Chris at inlinepro when i talked to him.

Thanks for all the help I did get here anyway.