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flatfout turbo upgrade :p; ms2 turbo efi
Topic Started: Nov 5 2009, 08:00 PM (7,524 Views)
rutger
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hey there everyone, and newbies!

long time ago I posted here...
been busy with alot of things (cars :P ) like my baywindow..


I'm working on my 2,4 type4 flat4 engine. ordered a megsquirt2 v3.0 and a garrett gt32 turbo. here are the first pics:

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bailey's dumpvalve, unknown intercooler, innovate lc-1 wideband lambda controller...


and yes, this will be scary fast :wub:
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rutger
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progress on the inlets!
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throttle body of a golf vr6 B) should be big enough..
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ty to fit it..
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this is to lower the compression to 1:8,0 and should also help to flow more around the valves, because normal they are near the "cilinderwall"
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100bob
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Now that really does look nice.
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dragonrider
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cracking,i really like that :D
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rutger
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Thanks guys :D

In a week I get some other parts to try if it will fit.
Someone is now modifying my MS ecu for some applications I'd like to use like;

-ford pwm idle valve support. thats easy to make the engine idle smooth and it will regulate itself then.

-boost control: always easy..

-launch control/flat shift :ph43r: why would that be ? :wub:

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rutger
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rutger
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Made my own triggerwheel today.
It was a universal wheel. its steel so you can't weld it to the alloy pully.
I don't know the name of the machine, but made it fit so good that it""clamps" itself to the pully. used 3 bolts for security..
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gtmdriver
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That looks impressive.

It's nice when a plan comes together.
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Knighty
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Hi Rutger - looks like your doing a fine job I must say, one thing you may want to take into serious consideration is the piston temperatures, even if you are using a trick forged race piston, its worth engineering a piston cooling jet spray bar set-up which will take oil from the main gallery and aim it at the underside of the piston nearer to the exhaust valve, but any area under the piston will generally suffice.....you may find you need an oil pump of about double the current mass-flow capacity (longer pump rotors), sounds like grief I know, but doing all this is better than melting your pride and joy, being air cooled its a pretty bad starting point to be honest......every turbo engine I have ever worked on (I have designed turbo engines for LMP900 LeMans and WRC) always has a set of piston cooling jets, and they are also now standard fitment on all turbo road car production gasoline and diesel engines......I have seen such systems retro-fitted to V8 pushrod engines which have since been heavily turbo charged, so it can be done, if you need more advice please just ask.

But otherwise it looks like your doing a fine job......make sure you form some kind of duct around the intercooler in order to force the air through it!
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Tigger
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Knighty, what about water injection? There is a train of thought that says you inject a alcohol / water mix?
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Knighty
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Hi Tigger - I have no personal experience of running it, but a friend has run it on a V6 24v Cosworth granada engine, which he supercharged and put in a sierra 4x4, he did a pukka job of it too (to a point - see below), forged JE pistons, re-bored the block, lowered the CR, used an eaton supercharger from a straight-6 jag, did a nice belt system and some good maths.........he was running a water and "something" mix (ethanol/alcohol????) and I know he was real happy with the results, I think he used an aquamist system, he was mainly using it to keep th intake temperatures as low as possible, which gives better volumetric efficiency, therefore produce good power, it was pushing well over 300bhp and a skip load of torque, and he raced it in the national sprint series and was class leader on many occasions wiping the floor with lancers and subarus!!!

unfortunatley the engine let go in a big way while on a goodwood track day, his diagnosis of the exploded engine (it was a real mess) was the main bearings moved and the crankshaft snapped in half....upon showing me the photos it became aparrent that he had been using a cast crankshaft, which has gotta be the worst choice for a serious race motor.

anyways, I seem to remember him saying he would monitor exhaust temps, then when they got to about 1100DegC he would have to back off......I know he was very happy with the aquamist system, but it did sound very dodgy having to mix the stuff up, but this was quite a serious race car, but with an MOT!!!

I think he was also skating on thin ice regarding piston temps, as the cozzy V6 24v does not have piston cooling jets, being a normally aspirated engine.......turbos or superchargers = piston cooling jets, an absolute must have in my book, he probably got away with it as the sprint race runs are less than 1 minute or so running time.

Rutger - sorry to steal your thread!.......if you want to post some images inside your crank case I will willingly point you in the right direction..........also, what engine is that garret turbo from?......do you have a compressor map?..... whats your general boost pressure and power expectations?......

Rutger - from what you say above the RPM is racing away uncontrolled????......if so you may want to consider scrapping the single throttle system and going for 4 port throttles right near the heads......as I suspect there is still alot of pressure in the twin-plenum system even after you have backed off the current single throttle - but I could be wrong.

Flames - sounds like lots of un-burnt fuel - are your injectors spray pattern aimed directly at the back face of the intake valves?........otherwise it could be hitting the port wall opposite the injector and dripping un-vaporised........what engine did the injectors come from? are they a split or a single spray pattern? you need a single spray for your 2-valve engine

just rying to help fella! B)
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Tigger
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Hi Knighty, wow fella I will bow to your knowledge on this subject :D

Rutger, What boast are you thinking of running, and what is the project Bhp ?
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rutger
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Hi Guys,

sorry for the late reply :rolleyes:
I'm doing my best to understand the whole message!

I am considering the aqua-mist system for cooling of the pistons.

about the launch-control, I think I wrote it down so badly that you don't understand.. :unsure: The engine isn't ready, so also never started. I hope this summer.

About the turbo: at www.turbobygarrett.com you can find the maps!
There are JE- forged's in the engine now and lowers my compression to 8.0:1
The max boost will be 0,6 bar for now :ph43r: The guy that helps me with this everything desings stuff for turbo's, so there is an expert for in emergency-situations :lol:
With this i estimate the bhp will be around the 250 :ph43r: wich will be enough..

Thanks for your input anyway ^_^ It's always easy when more people think with you!

about hte injectors, these are red bosch 590cc/min@3bar multispray (4)
this is a movieclip where they test "my" injectors:
http://www.youtube.com/watch?v=7oTirEZNRw8

more pictures soon!

regards, rutger
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rutger
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Started again at the fug.. Sometimes you need to get some money before you can spend it... :lol:

Made some brake-bleed nipples fit for the vaccuum/pressure connections.

From both "plenums" they will go to a "box" and from there the rest to the ECU, dumpvalve and the fuel pressure reg.


Still need to think about the exhaust... :angry: room enough in a fugg, but the turbo is really big B) so a problem to mount it somewhere...
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rutger
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and made a turbo header myself this week B)

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