S4ordie

Tony - Thanks for the SEMA pics.

I understand the technical benefits of their design and recognize it should produce better power at lower boost but are there any comparative dyno tests? Would like to see baseline, no SCer, and comparision of the Techo set up to other twin screws.

Them thar purdy.

blau928

Hi Tony,

Cool pixx..! I had spoken to Autorotor years ago about doing a front inlet, and they told me it would be a custom application. So, unless I was buying a lot of screw compressors, it would not be worth it.. I think the Edelbrock setup you posted pixx of is an eaton, similar to the one used in the ZR1 Vette, and some Toyota Trucks.

Note the offset angle custom fuel rails...... This is very difficult to do unless you have CAD.. I wont have to offset mine, as I am intent on using as many off the shelf parts as I can. In addition, theirs is cast, and mine will be machined from billet stock. (I am very close to having the assembley ready in CAD after some more tweaks).

FYI, The overall height from the intake port face on the cylinder head to top of the entire assembley is about 8.25 inches in my design... That's with 5/8 ID fuel rails. It is unbelieveably difficult to package this thing, but I think it will be there in a few weeks. (Hopefully sooner..! But, I need to spend more time with my engineer.)

Once I have the assembley closer, I will of course post some pixx of the assembley. Oh, on another note, the intercoolers being used should be ablet to cool 900-1150HP of airflow with less than 1psi pressure drop across the cores. They are 2 sets of 3 core 392mm laminova units, and each core is rated at 150-175 HP each...

I am designing two setups, one for the LH, and one for my Motec.. I intend to dyno both setups and see what happens.... The only difference for the LH will be single intake air tube to MAF and stock Throttle body, while the Motec is MAP based, and I have a dual inlet tube for the TB I am using..

Again, Cool pixx from SEMA..!

hans14914

Here is one of the better articles on the Techno system:

http://www.mustang50magazine.com/tec...kit/index.html

The picture gallery is amazing, and shows the component assembly - teasing how easy it would be to install this on a 928. If only they would sell the blower/plenum assemblies.

Tony

Anyone have a set of late model Mustang Intake manifold gaskets? I would be curious to see how close the ports line up...granted there is WAY more to it than that, but ya gotta start somewhere!. A well crafted adpater would be in order Im sure. Seeing how that plenum is just like a "modern" spider , it sure is a tease though!
clean set up for sure!

hans14914

Tony,

If you look at the kit itself, the runners are completely modular, as is the throttle "tube" and drive snout.





The core section with the supercharger itself, intercooler plenum, internal bypass valve.... etc are standard for all flavors of the kit. They simply cast a new set of runners for each version, and machine the appropriate snout lengths and bracketry. It is unlikely that we could afford tooling for the runners unless some like DR commissioned another set of molds, but making the runner sections of ouf tube-stock is pretty easy. Mike Simard, Loius Ott, and others already have the 32v intake flanges prepared, the intake runners themselves would all need to be identical, so perfect candidate for CNC madrel bending.

Oh, another key point, the inlet itself is also modular - the opening into the supercharger unit itself is 3.5", ideal for the 928 MAF.

The issue is, for now, Techno is not selling the core unit for outside development. If these were available, and under $4k, I would have one right now.

Bill Ball

We'd have to finesse a new waterbridge and oil filler to fit it. Oil filler we've done but not waterbridge.

blau928

That pesky water bridge... Hmmm.. Actually, I am working on the clearance for that next... Going to draw the water bridge up in CAD, and check it all as an assembley to make sure it all fits..

Man, I have not been this excited about a motor project in years....!


Bill,

Depending on the length of the SC snout and the length of the rotor lobes, the bridge may be able to be left alone, and the SC moved back to the firewall, leaving lots of space in front for an intake tube. Actually, this was the way I would have preferred to do it, but I cannot afford to have the SC itself redesigned. Think of a cobra snake with the tail connected to the TB, which is connected to the SC, and the head of the cobra being the MAF sitting on top of the water bridge where the oil filler now resides. The MAF is then connected to a "ZO6" type air filter over the nose of the radiator..

Hope it makes sense..

Cheers,

Tony

you may be suprised...there may be enough clearance for the water bridge.
Oil filler, as you said, is a non issue.

Id love to give them a spare block, some old heads and let them do what they want in their spare time. Hood clearance may be close, but its actaully a very low profile unit as i saw it installed. Honeslty, if i could run that set up Id have some sort of "M3 bulge" massaged into my hood...or a tastefull scoup. The hood would be the least of my worries.

Like wise Hans, if it were available individually, id be all over it!

blau928

You may not have to have that M3 bulge, and there may be a good chance you might even get a 2.8L Autorotor under the 928 hood without cutting it open.. I am gaining more confidence that the 2.2 will fit without any problems..

However, we shall see...

oz928s4

Bill thanks for the feedback you confirm what I thought.
It is definetely a different animal with the SC bolted up.
Lot more grunt low in the RPM I have advanced my cam timing as well...by 3 degrees. I am going to check my HP with another run shortly as I think my intake is lacking. I will look at it further down the line. I am just happy to have it back on the road after a long absence.

oz928s4

I can only wish I had 400 neddies Andrew...maybe later.
All sensors replaced whilst in there mate...both knock and hall sensors.
I think my home made intake tract is chocking it

Ralph Newman

What spark plugs are you running? I am running about 8 psi boost. Any recommendations?
Thanks

Bill Ball

FWIW, I run one heat range cold. Be careful translating heat ranges between plug brands.

Bill Ball

The snout look low alongside that intake, but I guess the manfold is the key. That would have to be flab'd.

dprantl

NGK BCPR7ES-11. These come stock on my '91 SAAB 9000T that is currently running the same hp/liter as my 928. I'm running 8.5psi.

http://www.race-mart.com/items/produ...-11-detail.htm

This plug's part number in auto parts stores is "NGK 1095". Here it is at NAPA:

http://www.napaonline.com/NOLPPSE/(S...095_0066627715

Dan
'91 928GT S/C 475hp/460lb.ft