enthusiast

Cumulative total engine ignitions with time of last recording listed in hours. Analysis of possible engine damage from Range 2 is difficult because the maximum rpm value is not recorded. There is a factor of safety between the rpm limit and the actual rpm level where the valves “float” or some other mechanical issue occurs.

Range 1: engine ignitions at electronic limiter
Range 2: engine ignitions over specified rpm
Outside rpm range (upper range): in hours [time of last Range 1 recording]
Outside rpm range (lower range): in hours [I believe this is time of last Range 2 recording]

Governed Engine Speed 1-4 gears is 8200 rpm and 5-6 gears, 8000 rpm

abg123

I also remember a few posts where type 2 ignitions can be deleted from the cars memory....?? maybe some more knowledgeable rennlisters can chime in on this. 805 type 1's seems EXTREMELY low

user 8830374

So did you get the car?

Nordschleifer

I´m on a business trip in Europe at the moment. As you can see still checking out rennlist from over here !! When I get back next week I will schedule a ppi and if things work out I will make the deal. White 6GT3, 10000 miles, one owner with Euro cloth GT3 seats, Techquipment bar, Schroth harnesses, lots of records available asking 59000. What do you guys think ?
Murat

dave morris

Buy it before somebody else does.

Mabuhay

Hmmm... when I did the DME dump, this is what it came up with. So translation is, as I was told, that for 577 hours of engine runtime, the rev limiter was hit 504 times... or almost once an hour!

AllanJ

Like what was said before, there are 410 ignition firings per second. In your case, probably all 504 ignition firings happened at one event at hour #577 in it's life (fairly recently). Considering that it takes a moment for the driver to register that he's bouncing off the rev limiter....then it takes another moment to get off the gas and get the clutch in to shift, to me this seems like there was one case of bouncing off the rev limiter in the life of this car in all 600 hours of it's life. That's very easy driving.

Cheers,

Nordschleifer

Guys,
the owner just pulled out. He decided not to sell the car anymore ! I was just getting ready to join the club. It´s a shame. I will keep looking and keep you updated.
Murat

Mabuhay

Allan, can you explain the math again?

1) First, where did you get the value of 410 ignitions per second? Can you explain in laymen's terms?

2) So how do we tell how many times the rev limiter was hit over the life of the car?

AllanJ

1) 8200rpm redline. That's when the rev limiter kicks in.

8200rpm / 60 seconds per minute = 136.6 revolutions of the crankshaft per second

There is one ignition firing per 120 degrees of crankshaft rotation.
There are 3 ignition firings per single full crankshaft rotation.

136.6 rotations per second * 3 ignition firings per rotation = 410 ignition firings per second

2) You can't. At least not that I'm aware of. You will know how long the car spend bouncing off the rev limiter over its life but you won't know whether that was done over a couple events or a couple dozen events. However, when I bounced off the rev limiter on my car like I said before, it takes a moment to react to that so I expect each single event to be a minimum of at least a second (400-ish type 1's). Typical event is probably a bit longer.

Cheers,