refresh951

I believe Michael Mount is the engine builder and the skull is his build signature.

Chris Prack

Mike was not the original builder of the car or any part of it. It was done at the shop I worked at. The motor was built for that car. I know they don't seem to fit but that is what the owner wanted. There is so much to that car it's crazy. Some really incredible parts were created for that car, parts the community here would want, just not at the price I think they would be offered by my former friend/employer.

333pg333

Keep going Chris now that you e dangled the carrot! :-)

333pg333

Keep going Chris now that you've dangled the carrot! :-)

Chris Prack

That engine is 3.047L running on a Motec M400 with a single coil CDI ignition.

1.2bar - 643hp@6600 and 555ft/lb@5700

1.4bar - 660hp@6400 and 581ft/lb@4800

Thom

Staggering numbers...!

So how much did it put down with the LR intake, if you don't mind sharing?

Chris Prack

The car was purchased in Ohio and the PO spent a good bit of money with two brothers that own a site sponsoring business. Very clean car with a lot of bling under the hood. It looked nice but was not impressive to drive. So after a drive home from Ohio it got dropped off to me before he took it home.

I called John at Vitesse and we bought a turbo package. Did turbo, MAF, injectors....etc.

I drove the car for a week or so on the Ohio tag logging data and tuning the SMT6, Full throttle runs from roughly 80mph to well over 100 got the attention of a detective who lit me up and stopped me. Dead Ohio tag not registered to the owner, insurance?, no inspection etc....he asks me, "nice car, will it do the speed limit?" and let me go. Scared the **** out of me. I was already planning the conversation with my wife from jail.

Car ran great. Owner couldn't get the idea of a 16v turbo motor out of his head though. So the motor came out. We put it on our DTS engine dyno and made some pulls. I dug up the shiny intake and put it back on the engine for fun. Wow. The difference between it and the factory manifold was impressive. I'll leave it at that. lol

So many parts from heat exchangers to new CV shafts to the trans to elec. P/S to the dry sump, cams, slave chain drive ect...... you name it. This guy paid for it all and wanted more. And that is a whole other story. Haha.

Chris Prack

Those numbers are from the engine in the photo's from Ebay. The old 8v engine we saw a drop of up to 20ft/lb across the middle of the rpm band with the shiny intake. Put the OE manifold back on and the torque came back.

IIRC, we cut it up with a band saw after that. lol

pontifex4

Hypothetically, where could I see a picture of a shiny intake that might lead me to understand what it is?

George D

I'm on my second 968 box, and I don't abuse them. The first lasted about 5k miles with only a few soft track PCA DE events. Granted it was a used box (aren't they all nowadays?) but we opened it up prior to installation, and it was gone through from a reputable builder that installed the clutch type LSD with the previous owner and all looked good. The new box is holding up, but we only have about 1000 break in miles on this box with no hard runs.

The motor is being fired up again in a few weeks, and we'll see how the new 968 box holds up. Last dyno at 15psi showed 454whp and 487tq with a bad Synapse BOV. We'll see if the new TIAL makes a big difference lower in the RPM's. The Synapse wasn't closing till about 14psi. Pain in the *** to determine that this was the leak.

BTW, I know of many 951 five speeds that have held up fine on cars with 400 to 500whp. Tony Garcia tracked his V8 without many issues using the 951 box.

Thom

Thanks Chris for expanding on this car.
I may have more questions in the future on the engine but that's plenty enough for today

333pg333

The 2 boost level hp/tq figures seem a bit odd in relation to the rpms?

Chris Prack

I'm what way?

Dougs951S

I think what he is saying is how does adding .2 bar of boost net a torque peak 900 rpm earlier? Interesting, if oddly mismatched car anyway.

Chris Prack

This is being run by an M400 so may there was a timing change as well. I wasn't there for the tuning so I don't know. There is another possibility but I don't have time to explain that now but will later.