Latest Pics, let me know what you guys think.
Snow Boost Water/Methonal Injection
(IMG:http://www.iformation.co.za/scoupe/sbi.jpg)

2 Stage Hi Boost controller(Built/Designed by Me)
(IMG:http://www.iformation.co.za/scoupe/mbc1.jpg)

Hi boost activation
(IMG:http://www.iformation.co.za/scoupe/mbc2.jpg)


We are going 2 Bar, this is the last Modification for Power output...


(Of course there are "OTHER MODIFICATION" that need to be done....)

Dear Schwitzer,

You are one serious Scoupe tuner! How many people would build their own Hi-boost controller?

Please explain the Snow boost water/methanol injection. If you are running 2 BAR, that translates to 14.7 psi boost over ambient. that explains why you need methanol to raise your octane rating over 93.

did you have to change to different connecting rods to hold this together? did you change to upgraded pistons? did you have to lower your normal compression ratios...the Subie WRX is detuned to 8.25:1 compression to keep from blowing the engine under full boost so you probably reduced your compression.

Byron

I think the wiring need a little tidying up :P if you want my honest opinion!

Although to all bare essentials it looks good.

The other think to think about is that due to the design of the scoupe GT manifold the water/methanol is likely to spread unevenly between the 4 cylinders. Which at WOT will make it run like a bag of nails. So you could consider the idea of splitting the one pipe into the four branches of the inlet manifold? Keeping in mind that the four split pipes would all have to be the same length, or you'd get the same distribution problems.

The other thing to think about on that note is that there is nothing to encourage the atomisation of the water molecules as they are sprayed into the inlet tract. This will create "patches" of water in the air and again contribute to the uneven distribution.

Also, how are you planning to map the amount of water that goes into the inlet? Because obviously the more boost the inducor produces as you put your foot down, the more heat is created, and there for detonation is more likely/prominent, and so more water is needed.

But on the flip-side the amount of water has to be very specific, other wise, again the engine will run like a sack of nails.

I don't think your Megaquirt will run water injection will it? I can't remember off the top of my head if any of them do or not :S


All in all, I think that once its all sorted, that it will make your Scoupe even more awesome than it all ready was, and 35psi will make it RAPID!!!

Good luck.

The stock compression is still 7-5-1 which is Low i have been Monitoring the Other Racers that run "Low Compression(7-5-1)" and they have been getting away with 1.5 bar on Pump Gas(95) my car does have a Conservitiove tune in conjunction with 95 octane which allows me to get away with such high boost. My tuner boost's 1.8 bar on pump gas with a comp of 8-5-1 so if he and other can do it so can i,(especially since my comp is even Lower than his...)

These Low Compression racers then go 2.5 bar on 102(our racing fuel) then they thro in Toulioune and xylene in to increase the octane to lets say 110.

at this stage in the game they are running the "if you octane is high enuff your static compression ratio becomes irrilivant :w00t:

The Water methonal at when it activates with make my overall octane 116 which gives me alot of room to play. increase boost and timing...

A conservitive Tune Vs Aggressive tune

Timing Kills engines, my tune is conservitive (becuase my engine need to be rebuilt its on 250 000km of high boost.

i work my car at 11kw per .1 bar boost conservitive.
now a agressive tune would see 14/5kw per .1 bar boost. so the car would make power but is most likly to Break!

the golden rule is , POWER DOES NOT BREAK ENGINES, Incorrect fueling does!

So if you do have a engine and the fueling and octane/afr/egt's are Perfect
1) you car will be fucken fast
2) you would have Reached the Perfect Power threshold of your engine.

Very few People ever discover this.

With my regards to the Scoupe engine 145kw 285nm will last for ever on std internals' (provided everything is setup correcly and you have all the correct bits/run the correct fuel.
170kw 333nm, the Engine is running now for 6 months no problems.
and we will see how long the scoupe engine last at 200kw 400nm.

PS if you search the net there are guys making more p[ower more boost on pump gas then me...
The engine setup is designed for the 220km on the 1km NO FURTHUR/Faster.




1) She Needs to be Finilized still a few more Wires to sort out then we will tidy it up and make it Incogneto.
2) How do u Figure this? The Water/meth will be spraded into the Top/boost pipe /main airsteam so where the airstream goes the fueling will go no problems...
3) i c u have conserns Water Injection works, many of teh local racers use it succesfullt thats why i was motivated to use it
4) Megasquirt, you will need a Fast acting methonal safe soliniod to mate the water meth PROGRESSIVE
5) the MAP. The WOT AFR will be 12.5 when the Meth is Activate the AFR will be Richer @ 12. So at this Point the car will be running rich and have a very hi octane.if the car does need more fuel will can still add more fuel with the Megasquirt to teh primary injections im using the 175m Jet i have a 375 and a 675m jet that came with the Packageing but those are way to huge...

50% water 50% methonal is for a exact reason

1) 50%-50% is not Flamabile.
2) the 50 50 mix has more Combustion power as there is Hydrogen in H20

Well I think the 250hp and ~350nm torque from flywheel is just enough for me... :grin:

At least I'm almost sure it will last too with 98 octane pump fuel.

You really should take that thing to quarter mile. Wanna see what it can run. With slicks at least it could run some stupid times like low 13 seconds or better.

This is just stupid. :w00t: :thumbsup:



This post has been edited by eyelid: Dec 29 2007, 11:38 PM

Looks really nice. really gonna be a super scoupe :)

Water Injection finally Finished last night. check the Nozzel spraying so its all systems go must just get the car Remapped now...

Sounds good man! Jeep us posted!

(IMG:http://i243.photobucket.com/albums/ff229/zealot-04/3pod.jpg)

So this is my new Scoupe triple pod pillar, if you look at the bottem gauge(Boost) to the right you will see a small Green Light/led. when i hit .9 bar the light comes on and tell me that the Water meth is busy spraying i have done some hi way testing with Just water. its feels like the power is coming smoother. now i know running just water can easily Quench this sysetm(flooding causing the car to pull Slower) But teh Intake Manifold is alot COOLER.....

this weekend i will throw in the Meth for the first time and doing some highway testing. i think the car will then Over fuel as my AFR is already rich at 11.2 the Snow Performance manual says tune car to 12.0 before injection.

But Meth burners Harder then regular pump gas and will also be doing some cooling so who knows maybee i get some more power.

Im still wating for my 4 bar map sensor. then we gonna do a FULL ROAD TUNE, then hit teh dyno at 1.8/2.0 bars......

This post has been edited by Schwitzer Turbo: Jan 24 2008, 04:02 PM

looks nice, good luck with testing :)

So we fitted the 4 Bar map sensor, Mapped the car at 1.7 bar boost and things where going well.

So i decide, 2 bars plus, here we come.

The accelaration is unbeliavle. the car is easy making 200kw 400nm(@ 1.8 bars)

When i accelerated the car. in 1st 2nd 3rd im to scared to give it full throttle or take it above 5000rpm, i dont have the ball's.

I have never said my car was fast. but it WAS Fast.

So we pull get back to the workshop after the road map, to find the engine bay covered in oil...... I clean up the engine bay, take a slow cruize home pop the hood and the engine was still clean.

The Tuner thinks there is a whole in the piston, but i need to do a compression test for that.The car has been burning oil for some time so maybe at that Pressure this is some Heavy blow by or a oil ring collapsed,even a ring land. but who knows till we open the engine.

So now i got to wait and month save some cash the send the engine away to be rebuild.

I cant say i did not exspect things to go pear shaped,as the post suggested, going BEYOND the LIMIT.

Scoupe SCOUPE GT motor is Good for 1.7 Bars Boost.

....or the head gasget?

Looks like I'll be good at 1.4 bar boost.


Is there dynograph available from your 200kw run?

You're crazy guy to go with 2 bar as the ~1.5 bar will be enough to do any power with this engine, just larger turbo or headwork required.

2 bar boost with ANY ENGINE IN THE WORLD is madness..It'll blow.



This post has been edited by eyelid: Feb 2 2008, 08:38 PM

Hey dude, i know its a bit Excessive but atleast we all now Know. think of it this way, i push so hard so you guys would know what the reliable LIMIT is.

As for the turbo, i went to a dyno mapping seession earlier this week,with the tuner who sold me the turbo and he deminstarted to me

***Well the reason he mententioned it to me(about the compressor maps on the web being 9 years old) is cos the car that i went to see has the same hybrid tdo4h and he has had postive gains @ 2.2 bar's and this proves that the tdo4H's are very under rated......(he says the tdo4h can break many a engine, teh car was pushed above 2.2 bar the Power stops increaseing but the Torque keeps coming....

I know the Car was sick and it should NOT of been pushed to its limits...

Now that the car is fully mapped. we will rebuild the engine and boost 1.8 bars. have been speaking to a guy in JHB who a has a scoupe turbo and he had head & intake fully worked. no normally with a full head job the car gain between-10-25% performance, he said the Stock Scoupe head is so Inefficent that when the GT head is fully worked you can exspect a 40% performance increase. So inconjunction with that and teh Return of the log manifold i shouldnt have to run such high boost. We will begin the motor rebuild in march...


*** and i have a Sneeking Suspicion that the guy who sold me the menthonal mix it on with water, soi the car would of been horrible low on octane*** so rather learn my lesson on the old motor than the new one. From now on i will buy my Methonal Directly from teh suppliers in a Sealed Container...

Despite the car being pretty much fucked, i really wanna jump in and take it for another BOOST.

This post has been edited by Schwitzer Turbo: Feb 3 2008, 02:50 AM

Okay I was stupid too to use stock clutch and gearbox with 200hp power. And they lasted dyno session and little bit of hard driving ehh.. :w00t:

2 bar boost gives you so much temp that it is't wise. Even the turbo might be doing way over it efficient scale, no matter if it's boostin 2.2 bar, it still doesn´t prove anything, just giving more destructive heat but no power.

Interesting to see what's broken there.

With bigger turbo it gives more power with less boost. :)

The thing with the Bigger Turbo is you wont generate More Torque, i do understand the Bigger turbo theroy but have you driven a small cc car witha T3/T4? yes it is More reliable but the DRIVE is not the same..

trust me i know..

Started car this morning for 20 minutes no smoke no Oil, it must of just been some Blow By. will update you guys later during the week....

This post has been edited by Schwitzer Turbo: Feb 3 2008, 02:48 PM

Of course I know what the turbolag is. :w00t: IT's just choosing between low end power and high end power. GT28RS has max capacity of over 300hp and still spools 0.5 bar @3000rpm.

Yes. Little bit of lag. Yes you can have the car over its knees with wrong gear but It still accelerates pretty good from 80 km/h in 5th gear when you have to overtake some truck in motorway! No need to change gear. If you know better mathcing with the turbo in this car, please let me know. (Bigger capacity, better spooling..)

Don't that T3/T4 thing is out of date as the GT-series is powering now the Garret line? :) better spooling..

This post has been edited by eyelid: Feb 3 2008, 04:58 PM

The Turbo i am currently using out perform's the GT25 Turbo, i know there are 3 or more version of the GT2871/76 etc and they are Very good turbo's but cost twice the Priceof mine. so maybee in the future when all is well i will make that upgrade.

Eyelid are you dissapointed in me?

No I am not dissapointed to you. :) That's crazy amount of boost and your engine was already going to rebuild. Even GT28RS isn't working in it's range in 2 bar boost so only thing I am complaining is that you're working beoynd your turbos range and capacity and we're not getting accurate numbers. Looks like this engine can do what ever you want to throw there..



How about some Holset turbo? Or Master Turbo. They should be affordable price.

My Tuner suggest's i keep the current Turbo and Not boost more than 1.8 bars, it should be gewd for a low 13's pass. Will Drag Suspention/Tires/weight reduction Mid 12's

My engien builder says Master Power T3/T4
*****0.48 exhaust housing
stage II exhaust wheel
0.50 comp. housing
57trim compressor wheel will also work. but for small displacement, 0.48 exhaust housing.*****

It looks like "MP 802138" -turbo should work great with you. max output 350hp which should be enough for this engine no matter what you do. :)