Are the Paramters in this ECU Dump OK?

[ckalkhof]

Hello,
I'm looking to get back into an Exige and found a good deal on a very low mileage car. I'm pretty sure this car was tracked frequently. Is there anything on this ECU dump that you guys would consider an issue? I see quite a few high revs. Does the ECU only log the last 5 instances of max engine speed?

Thanks in advance for any guidance on this.

[zygotesoup]

Originally Posted by ckalkhof

Hello,
I'm looking to get back into an Exige and found a good deal on a very low mileage car. I'm pretty sure this car was tracked frequently. Is there anything on this ECU dump that you guys would consider an issue? I see quite a few high revs. Does the ECU only log the last 5 instances of max engine speed?

Thanks in advance for any guidance on this.

hey man... glad to see you're getting another exige! it'll be hard to find one as nice as your old one though!

i dont think anything looks terrible with that ecu dump unless im missing something. the previous owner definitely seemed to not be afraid to use the rev limiter though!

[ckalkhof]

Yea Zygote - I've been reading about your experiences and it really makes me miss my Exige.

I think the car I've been looking at was run pretty hard.

[buzzy]

I think the only one that can answer with any authority is Lotus. (Edit - concerning matters of ecu dump data voiding the warranty)

The engine speed report says it spent the majority of its time idling... I would say thats probably a good thing.

As for max engine speeds, mine showed 8500+ rpm at the first service when I had only ever taken the it up to 6000 rpm. I bought the car new with 8 miles on the clock, so who knows when that happened? Maybe Lotus redline the engine a few times to make sure it works before shipping the car?

[marcinr]

Wow, strange, the dump shows that the throttle position never went over 80%. I wonder who would buy an exige and not floor it, even once.

[Demonized]

Originally Posted by marcinr

Wow, strange, the dump shows that the throttle position never went over 80%. I wonder who would buy an exige and not floor it, even once.

I've said it before, and I'll say it again, I've only ever seen one ECU print out that showed more than 80% throttle.

Mine, which was previously tracked, didn't show over 80%.

Not reliable!

[marcinr]

Good to know. I had an ECU dump done on my car after my engine swap and breakin, and I saw a reasonable distribution of throttle positions, including a few minutes in the 80-100% range, so I assumed other Lotuses would be the same.

[kwancho]

Originally Posted by Demonized

I've said it before, and I'll say it again, I've only ever seen one ECU print out that showed more than 80% throttle.

Mine, which was previously tracked, didn't show over 80%.

Not reliable!

Isn't that what Charlie unlocks with the Gotham tune? Apparently from the factory, on the 07's, they only use 80% throttle. True?

[Demonized]

Originally Posted by kwancho

Isn't that what Charlie unlocks with the Gotham tune? Apparently from the factory, on the 07's, they only use 80% throttle. True?

I do know that Charlie's Gotham tune allows the throttle body to open further, I don't know how that translates to the ECU though, you would have to ask him specifically.

[ckalkhof]

Do you guys know what the values 32' 51" 4.0s mean in the first MAX RPM?

[Demonized]

Originally Posted by ckalkhof

Do you guys know what the values 32' 51" 4.0s mean in the first MAX RPM?

This means that the RPM was attained at exactly 32 hours, 51 minutes, 4.0 seconds into the run time of the car.

[Jordan@LotusSV]

They didnt provide you the Performance Data?

[Demonized]

Originally Posted by Jordan@LotusSV

They didnt provide you the Performance Data?

I was wondering where the standing starts were... Those would be a nice indicator of abuse.

[ckalkhof]

No, the attachament is all I received. What would the performance Data tell me?

[Demonized]

Originally Posted by ckalkhof

No, the attachament is all I received. What would the performance Data tell me?

Standing starts (Arguably "launching" the car), top speed, fastest 0-60, and so forth.

[toedrag]

Originally Posted by Demonized

This means that the RPM was attained at exactly 32 hours, 51 minutes, 4.0 seconds into the run time of the car.

Slight clarification...it's the run time since the data from the ECU was last cleared. If the ECU has never been cleared since new, it's the total run time as Demonized points out.

You can get an idea if the ECU was reflashed/cleared by looking at the total running time on the ECU Dump and the car's mileage, then do some simple math to derive a speed value. Looks like that ECU has about 52 hours or so on the engine. Based on your low-mileage description above and assuming that means less than 5k miles, the ECU probably hasn't been reflashed, and the timestamps in the ECU dump can be interpreted as real hours since the car was new.

[ckalkhof]

Demonized,
This would be absolute runtime; as in total time the car has been running since born? So, after 7 hours of runtime (MAX RPM 5) 8581 RPM was hit?

It would be nice if there was a field that indicated actual time spent at MAX RPM.

I'm probably being too picky, but it is nice to know this stuff.

[ckalkhof]

Ah, toedrag, you got in a post before I typed my question -

[Demonized]

Originally Posted by toedrag

Slight clarification...it's the run time since the data from the ECU was last cleared. If the ECU has never been cleared since new, it's the total run time as Demonized points out.

You can get an idea if the ECU was reflashed/cleared by looking at the total running time on the ECU Dump and the car's mileage, then do some simple math to derive a speed value. Looks like that ECU has about 52 hours or so on the engine. Based on your low-mileage description above and assuming that means less than 5k miles, the ECU probably hasn't been reflashed, and the timestamps in the ECU dump can be interpreted as real hours since the car was new.

Good call.

[Demonized]

Originally Posted by ckalkhof

Demonized,
This would be absolute runtime; as in total time the car has been running since born? So, after 7 hours of runtime (MAX RPM 5) 8581 RPM was hit?

It would be nice if there was a field that indicated actual time spent at MAX RPM.

I'm probably being too picky, but it is nice to know this stuff.

The revlimit on the Elise/Exige is 8000, with short bursts to 8500 allowed (2 seconds?). Chances are the car didn't spend more than a millisecond at 8581.

My printout had a 8900 reading, probably caused by a misshift, car runs strong though. I wouldn't worry about it too much unless it's near 9k.

The main concern at high RPM's is the oil pump gear, and when that goes, it usually goes in style... so if it's not gone, don't sweat it on the RPM's.