Ivan Arzola

[QUOTE=333pg333;11023003]It's a really tight squeeze with our steering shafts and the headers (custom) on our rhd cars.
I hope Zoran puts this motor in his awesome Orange 968 turbo body that he's been spending some serious time customising. It will be an amazing combination! Looks like not the largest hotside housing. What size exhaust do you suggest for the car Ivan?

ps...any news on the Blue car in your Avatar?

That is were the engine is going to end up in, the 968. He has some more work to do on it for sure. The turbine housing was picked for the power range on engine and the fact that I do not want the rev's to go past 7000.
The exhaust on the car should be 3" minimum.

Blue car is sitting at the moment, might get it out in February for a race depends on time, got a lot to do before I can play with my stuff.

Ivan Arzola

Thanks Dutch.

The plate is to locate the tensioner in the 968 head as it is not using a variocam and also to reinforce the area were the tensioner mounts.
The cams are a billet set made with a profile that we use in our 4 valve turbo engine projects. The reason for the gears is that the manufacturing could not provide that on the design plus it would not allow for setting the timing to what you want.
Like I stated in the previous reply to Patrick, The turbine was sized for the power range, did not need to go bigger.

Ivan Arzola

Patrick and Dutch

Also i forgot to mention that the size of the turbine housing is not the only thing that counts the turbine wheel itself has its own character as well. The housing complements that character and or behavior.
The turbine in this case is not small.

Chris White

Hi Ivan – great to see you posting some nice project info!
Looks like you are doing a good job raising the bar for everybody else!
Did this one get some of the Ti retainers? I still have a couple more sets…
I had an interesting thought looking at you set up, since you are not using the variocam as a hydraulic adjuster you would come up with a variable mechanical unit that you use to fine tune the intake cam and then lock in place. That would give you the ability to have lots of intake and exhaust adjustment. On one of my earlier 16v set ups with the twin cam drive I found that he best dyno result was not the best track set up. A little ‘field tweaking’ gave better usable power at the track.

One tech question – on the dyno readout – it looks like the numbers on the right are peak numbers? The EGTs looks to be well under control.

BTW – I’ll get back to you on the blocks.

Ivan Arzola

Chris

Thanks that means a lot coming from you. I did use the retainers indeed. Hope to need more. Will see how it goes. You don't do a lot of these builds as they are very pricey as you well know.
I like your idea need to discuss with you over a phone call at some future time.

The numbers on the dyno on the right represent the location of the cursor which in the picture was at the end of the run. You can move it to a spot on the data to read that instant. On the bottom left there is an average cursor that you can move and set at different locations and create a window and it will calculate the average for the width of the window. I normally set it between 3500 to 7000. I dont recall if I had it done when i took the picture but the average hp between 3500 and 7000 is 567.7hp and 560.14 tq.

Please let me know about the blocks when convenient. I wanted to do this motor with one but time got in the way. Next one hopefully.
Cheers
Ivan

333pg333

Hmmm...
B....T B...K

Chris White

"Pat - I'd like to buy a vowel".....
PS - I'm not related to Vanna!

Looks like you could solve the puzzle already.

333pg333

Bullit Buick?....nah, he drove the Mustang. :-)

Ivan Arzola

Funny Patrick good guess!

odurandina

for anyone living in the Northeast....

i'm needing to swap in a functioning H20 pump for not-too-many hundreds of dollars

so i can get the car to Texas, for my LS7 swap.

any help would be hugely appreciated.


one other possibility;

pull my engine and it's yours in exchange for $$$ to cover a portion of the cost to ship the car to Eric Hill's shop in Texas.


engine has 196,000 of mostly highway miles. runs fine except a leaking H20 pump...

also had a 1-time head gasket issue that was solved via hg sealer.

engine has had all M1 during it's life and burns about 1/2 quart every 7,500 miles.



just pm.

michaelmount123

[QUOTE=Ivan Arzola;11021453]hello guys

It has been a long time since I have been on this forum. Been busy doing my thing.
I was allowed to share my latest. Finished dyno tune of 3.1L turbo 4v motor that is dry sump with a 5 stage pump, has a 968 head without the vario cam, solid followers, custom billet cams with adjustable gears(custom design by me), stock 88mm stroke crank, custom aged 625+ head studs 1/2 in diameter, pinned girdle, 300m Arrow rods, custom exhaust by me, big garrett turbo, custom barrel intake with custom runner, custom cp pistons, special valves for solid followers, custom springs, etc.

Oh Ivan, you really shouldn't take credit for designs that aren't yours. Care to share more about the adjustable cam timing that was 'custom designed by you'? Maybe also share the history of this engine with the forum, or with Zoran? It's pretty interesting. Don't forget to add why it was in my shop. Now now, tell the truth…. If you were up front in the beginning, I wouldn't have busted you on this.

968turbos2

Voith

Who designed the billet cams? Are there any more detailed pics of that setup? Looks interesting.

rbuit

Hello everyone

Here is my 3.0 16v 944 turbo
I am racing in the Netherlands
http://www.adpcr.nl/cms/

E85
1150 cc bosch
Carrillos
Knife edged crank
Mahle Pistons 8.5:1
Alusil
Variocam
473 hp 0.82 bar
530nm
K27.2 7200-8 APP hybride
3-3.5 inch exhaust
Custom headers
Custom inlet
Drysump
4 seperate coils
73mm 996 electronic throttle body
EFI euro4 motormanagement
Build with APP racing http://www.appracingengines.com/

I am racing the car for 10 years now
We started with a stock engine, after that we build a 380 hp 2.5 8v
engine from a bushed 3.0 L block.
2 years ago we started the 3.0 L build and now we have raced the engine
for 1 season succesfully competing with GT3's.
I have a machine shop so made a lot off parts by our own.
My father is retired and put a lot off time in all the details for a project like this
Here are some pictures and dyno sheet.

Thom

Welcome, and thanks for sharing.

That is an impressive power output considering the low boost, congratulations!