Post an aerial shot of your engine bay and I'll tell you what I think
The radiator is missing in this shot but it is on the right.
Post an aerial shot of your engine bay and I'll tell you what I think
Not yet, but I will see what I can do.Fred wrote:Congratulations on the first drive! Did you take a video for your fans?
That would be because I was running the Puma on the bench, off a 12V supply.Fred wrote:I took a look at your log earlier and it looks suspicious! The first RPM reading is 400 odd and there is NO sag in the very low battery voltage when starting.
It’s not so much of a speed thing, just a different sound. Almost like the overlap on the intake is different. I am not too worried about it as it still runs well.Fred wrote:I wonder what is causing the idle sound difference, likely just "amount of timing". Does it idle low or high compared to the dizzy?
OK I will get on to thatFred wrote:Re USB, Puma, PNP, yes. Install a PNP with the correct cut traces/jumpers and live happily ever after.
I think I might try dual externals. The Cooper S models had no vacuum advance at all so if I run out of time I can race with RPM based advance only.Fred wrote:I wouldn't mind putting an #ifdef SPUDMN block in for temporary dual MAP if you're up for setting it up. You could solder the second on in where the AAP is supposed to go, or run dual externals. That will get you a nice low signal that you could more easily tune with. The way it is right now you'll have to be very careful and conservative to avoid getting too much timing at the wrong loads. Then again, as pointed out by a recent arrival, most of the timing is RPM based, so the vacuum aspect just gets you more economy. I guess you can race on that
I will get some real data logs next time I take it for a run. I don’t want to piss off the neighbours too much.Fred wrote:Glad you're liking the way it's driving, just be careful about timing on that little vacuum range. If you stick with it, you'll need to roll with an axis that goes from 60 - 100 kPa in 16 steps or just ignore the bottom half of the table, which will never get used. I'd like to see a datalog of you driving it with it setup like this, it would be interesting to see the real range in use.
I thought you were out west? They should be on the front lawn (next to that kingswood shell) with a beer in one hand and the other in a fist in the air cheering you on :-)Spudmn wrote:I don’t want to piss off the neighbours too much. :lol:
Fred wrote:I thought you were out west? They should be on the front lawn (next to that kingswood shell) with a beer in one hand and the other in a fist in the air cheering you onSpudmn wrote:I don’t want to piss off the neighbours too much.