Chris Prack

Ah. Only saw the power numbers. Didn't know it was an auto.

ehall

Every time I feel like bitching about what a pain in the *** it is to move around the engine bay of a 951, I'm just going to look at that pic of this over-stuffed 928. Cripes there is a lot of crap crammed into a small space. No wonder those things are so fat.

NZ951

You have to wonder why they didnt do a COP conversion there...

333pg333

http://www.erik27.com/todd/turbo/index.htm
What's going on in the 1st pic of the 'Underhood shots-almost complete'?

Really not trying to sink the slipper, but that's not a very attractive looking engine bay. Not doubting the workmanship.

Thom

Fantastic results on this 928TT, and impressive workmanship

Will be interesting to see how long the stock bottom end will last with that much power.

Paulyy

Not sure what you're talking about?

Duke

The LS D585 coils used on that engine is more powerful than basically all COP's.

I have to agree with Pauly here, I think the fabrication and the details looks very good. Just a little powder coating and it would be pretty too

IMHO the stated 8xx rwhp is very believeable, if not on the low side..
32v 5l twin turbo on E85 @ 21 psi. That's insane.

Paulyy

I like the intake, but i would grind the welds back and polished the intake to make it look 1 piece.

twin gtx3076R's and then you're talking big power!!

Thom

The closest to this I can think of would be our BMW S62 turbo project, which is decently fast already running only 7psi on E85, but yes, at 21 psi I imagine the thrust on this 928 to be more than uncomfortable.

I can't see how this is going to keep any traction on 16" wheels, unless massively "massaging" boost build up until reaching peak torque.

BC

It is. LS2 coils sitting on each spark plug. Cayenne coils fit perfectly, but have some issues with falling-signal noise.

BC

16s that are welded wider to fit 10" mickeys.

BC

As I am sure you know, since you have dealt with e85 - there is nearly zero chance of detonation under normal operating timing schemes. Obviously it reacts badly to hot spots, but those will be from the spark plugs, which are very different than what we use normally, and maybe the edge of the valves - especially the exhaust valves. We have valves in the 5L that are pretty thick at the bottom margin, so they should not be glowing.

So with that all in check, it will be a PHYSICAL limit to the bottom end, not a detonation limit.

Duke

Sorry to pick on words but the LS coils are by definition CNP

Thom

Well yes, this is in this context that I am idly wondering about how long the bottom end will last, and will follow your progress with interest.

If you don't mind me asking, what plugs are you using with the LS coils?

blown 944

I am always sceptical. I've seen too many claims of big power turn out to not put down any mph. I'm not sure of your plans with the car but I'd love to see how much mph you can get.

It sounds like an awesome ride.

I have to ask though, why 21 psi on a 4v. Hell I only run 20ish psi on a home done 8v head and have made over 500 rwhp (determined by trap speed)