hacker-pschorr

IMO 500rwhp is possible with a relatively stock 16V engine.
My stock US 16V passed 400rwhp with a 1:1 ratio of exhaust back-pressure to the intake manifold. That was not helping things.....
That was also with a very crude "tune" using an FMU to crank up fuel pressure.

That project has been on hold due to a fix-er-upper house we purchased and a few other factors like EuroS cams I purchased that fell off the face of the earth that kind of pulls the rug out from under you.

Unless the size causes other issues (like blocking flow to something else or causes the headlights not to work) I say go for it.

Todd has the designs on the table for a new IC for my car that will be using a core that is just over 500 cubic inches.

Go big or go home.....

Indy Rev

Alright Evan, I think its time for me to swing by the shop and finally see this in person.

entropy_engineering

Hell yeah Sean come on over, perhaps when it's not so damn cold! I'll have the Arnold Palmers and Tuaca lol. Hacker was your setup on the stock intake manifold, throttle body, etc.? What size turbo? Thanks, Evan

auzivision

Wow dude, I've heard you jawing about this kind of stuff off and on for a year or so now, but never seen any of it. Where is your shop, up in Sheridan? I vote we have our mid month beer night up at Evan's!

entropy_engineering

Yeah the garage is in Sheridan. I'm in Noblesville. It would be better in warm weather, but I have a few other projects up there too that are pretty neat.

Indy Rev

+1
But definitly when its warmer

terry gt

nice to see someone pushing the envelope . best of luck with the project

hacker-pschorr

Bone stock except for the Supercharger, intercoolcer and FMU
Exhaust is 85/86 manifolds with a 3" straight through exhaust.

#34 on the Murf928 site (even-though it's technically the second car we bolted the parts to for prototyping):

http://www.murf928.com/customercars.htm

My car now has all EuroS intake / TB etc... with the ECU and ignition from a EuroS so I can SharkTune it. That's pretty much where it sits now. Needs to be tuned and a few things tweaked, but that's on hold for a bit as I finish other projects.

#35 on the Murf928 site belongs to Rennlister Jean-Louis - that is a stock (except for exhaust) EuroS 16V engine with 10.4:1 compression putting down just shy of 400rwhp in a full race car (not just DE's).
If anyone has proven the durability of a boosted 928, it's him.

The oiling system has been modified for track use on JL's car.

entropy_engineering

Thanks for the info. I plan on modifying my oil system as well. I wonder what the stock valve springs can take for rpm safely. I'm betting 6800 or a little more.

Lizard928

I've done a mid mount turbo on a local fellow's car.

Using MSII V3.57.
4.5L
Cams are base circle cut, but US 82 cams.
Intake is modified to have the throttle body on the front of the intake, with the bottom capped off. US runners, and plenum.
Low boost 9 PSI, we have run up to 19 PSI (where I set the boost cut off in case of wastegate problem). I tuned it up to 21PSI. But need to do a little more work to be able to get the IC to stay connected to the throttlebody over 17 PSI. Full boost by 3k RPM. Comes on smooth and steady. Not much if any lag. Car is a bloody missile...... I haven't put it on the dyno just yet. But I can tell you on high boost, it is making well over 400......

Bigfoot928

Does Windex work as an air cooler? IJS... you want to keep the glass clean right?

entropy_engineering

Lizard I was wondering when you would chime in too. I have your shifter BTW. If the car you're talking about above was tuned up to 21 psi I'm curious how the knock looked. I'm assuming it has at least one sensor if not both up top. Was it gas or corn powered? What size turbo?

Hacker sorry to hear about your setbacks. One of my buddies decided to remove the sprocket from one of my euro s cams in a way I'd rather not remember. It's at a shop in Florida being looked at now to repair the keyway.

To answer a previous post of yours, I think the total combined runner length is somewhere near 6" last I measured. Not sure if that includes the port or not. They have no taper and are the same diameter as the 85 euro s heads. Really the big reason I run the extensions in the plenum is because those trumpets were cheap and readily available, and I thought since the beginning the air would enter the trumpets more uniformly elevated from the floor a bit. I also am guessing the air shooting in the front from the throttle body might distribute better going around the trumpets partially vs. having it all shoot across the top of the first one or two.

I love the crap about Windex! We've made the same jokes here. When I run water/methanol we always get blue windshield washer fluid. Maybe I can do that haha. As a side note, I've run the water/methanol a few times before and I can't believe how good it works. You can get away with murder on how much boost or timing can be run. Another, perhaps better, side benefit...I've pulled the head off a couple motors that had been spraying the stuff somewhat regularly. They always look brand new inside because the carbon gets steamed off. That means better ring seal etc.

Keep the information coming people I love it, and thanks for the comments.

atb

Any concerns about having the turbo oil drain positioned over the crank? Will there be any internal mods to direct the oil into the sump?

entropy_engineering

It's a fairly small amount of oil, and technically it drains over the main bearing webbing-not directly on a counterweight (I'm sure it will still end up flung everywhere). I'm also removing the disaster PCV, separator, oil fill, food blender, smoke stack thing off the top of the motor. Where it bolted to the block I'm making a fairly simple fill tube with a cap to add oil. Inside the open cavity on top of the block I'm going to make a housing to hold a small dirt bike reed valve assembly and connect the top of it to a draw tube in the downpipe to pull a vacuum on the crankcase, so windage should be minimal. The new oil fill tube will go down beside it. If that makes no sense I can grab some pictures. It's the big rectangular hole in the front middle of the block on top.

I plan to drill the ant farm for better oil distribution so air doesn't favor the #2 main based on the information I found here: http://translate.google.fi/translate...D13%26t%3D7951

Google translate is necessary to open. Thanks again Hans for the link.

Lizard928

There were no detectable knock events on 94 octane fuel.
No corn fuel up here. Even if we wanted to run it.

So long as the intake temps are under control and the timing is pulled properly the level of boost isn't a huge issue, especially at higher RPMs with a stock US intake manifold....

As to the turbo, it's a comp unit with the race impeller.