Though my ignorance of your engine management system is profound... I Do understand your hood's lift management system. I think. Heh. :thumbup:
(Vise grip use #3,267,352 ?)
Millemiglia
06-19-2008 04:49 AM
Looks great!
Excellent detailing.
Christer
06-19-2008 07:06 AM
That looks *very* familiar.....:)
Greg_L
06-19-2008 07:26 AM
Looking good!
Don't forget about that cloth in the bottom right though ;)
Bill Verburg
06-19-2008 07:56 AM
Geoffrey, an explanation of what we are looking at please?
specs?
results?
Geoffrey
06-19-2008 08:53 AM
I Do understand your hood's lift management system. I think.
Don't forget about that cloth in the bottom right though
I think you do! The new hood prop rods haven't come in yet, nor has the new power steering hose so the rag is keeping any drips off the new powder coated engine tin.
The car is a stock 91 that came in for a top end rebuild, brake, suspension, some interior and exterior updates. This is the first of the two 9M conversion cars we have.
The engine has rebuilt heads with 993 valves, performance springs and retianers, and we lightly ported the intake and exhaust ports. We have optimized the stock compression as best as we can without cutting cylinders down. We installed the new 9M for USA camshaft which is a newer updated design, Fabspeed complete header system with single muffler outlet, and the MoTeC kit. I updated the 9M wiring harness so now there are no wires cut from the factory wire harness in the installation and it can go back to stock if someone wanted to run Motronics and have it mapped for the modified engine, or turn the engine back to stock and run the stock programming.
The black box with "MoTeC" on it is the 9M 964 conversion box which allows the M48 to connect to the factory DME wire harness without any modification. The Gold box is the MoTeC ECU, and between the two is a barometric pressure sensor so the engine run consistently regardless of weather and altitude pressure differences.
There is an added MAP sensor in the engine compartment which will be used as the load factor in the main fuel and ignition timing tables rather than the AFM which has been discarded. There is an air temp sensor in the MoTeC pipe to replace the air temp sensor in the AFM which is needed in a speed density system to calculate the mass of air going through the engine.
results?
Maybe, I haven't decided yet...
Bill Verburg
06-19-2008 09:22 AM
was the vacuum actuated manifold flap retained?
Geoffrey
06-19-2008 09:27 AM
The resonsnace flap and associated canister has been retained and will be used. This is a key component for power above 5500rpm on a standard engine. On a blueprinted Cup engine dyno results show a 30hp loss at 6500rpm from deactivating the resonsnace flap to keep it closed.
Ant71
06-19-2008 10:22 AM
Looks great! so how much BHP can you expect now?
Geoffrey
06-19-2008 10:54 AM
whatever the Internet experts say...
Bill Verburg
06-19-2008 11:37 AM
Looks nice and neat, how does the Motec interface/ interact w/ the gauges? ignition key?, alarms? remote doorlock actuation?
Geoffrey
06-19-2008 11:46 AM
Everything works the same except for the Porsche System Tester or "Hammer" access to the ECU which obviously isn't there any longer. The alarm will still deactivate the MoTeC ECU with the anti drive off feature. I don't know what happens on a car with the trip computer though. I'm not sure if it the trip computer will still function.
kgorman
06-19-2008 12:47 PM
Wow, interesting work. In terms of the 9m cam, how is idle and all the traditional 'rough spots' when using aftermarket cams? I am sure 9m did it right, I am just asking..
