MicroSquirt.com read only forum (Jan.15,2018)

8 - 10ftlbs? do you mean better than last time? i hope so :-)Â i cant even imagine driving something that slow.


better than last time :P I'm now at 133whp / 118ftlbs but the peak numbers aren't as impressive as the curve itself. See the chart here if the attachment doesn't show that I posted ...

rb26dett wrote:good to hear

fred.

thanks Fred!! even better were the dyno results yesterday: a healthy (extra) 8-10+ ftlbs from 2500rpm(!) all the way to ~7000!! Still have some fine-tuning to do with the MSII, but those are my 1st real dyno results since installing it.

S.Bretz thanks for the reply..... I didn't mean to ignore your post :)

Anyways, I found out what it was over the weekend....... I bought my MSII preassembled with the HALL sensor circuit in mind as my tach input. Well, I had been using the stock coil's *IG-* for the tach input since I initally ...

I've been having a consistent problem with the tach/rpms spiking whenever I hit ~4800 rpm. I have not been able to *succesfully* rev above 5000 rpm so far because of this spike, resulting fuel cut, etc......

Please see attached datalog for an example of what's happening - any ideas?? Details of the ...

are you getting this oscillation @ idle? if so, set ego correction as 'active above rpm' (~200,300+idle) - if your idle is 800rpm, set this as 1000,1100 rpm, etc ...... that way, idle should stay fairly steady AND you can use autotune to adjust the VE table.

But even if there was no enrichment shot it would eventually straighten out (provided the motor doesn't die and your ve is properly tuned for the changed map at the higher throttle opening.)

that's exactly what I noticed with the Denso stock ecu in my mazda (AFAIK it does not do accel enrichments ...

hmmm not sure if this will help answer, but..... before I installed MSII, I had installed an LC-1/XD-1 . it was interesting to watch the a/f as the stock ecu made adjustments.... one of the things that I noticed is that when letting off the throttle, the a/f's would momentarily go rich, and then off ...

Good to hear another BP is running, NO BOOST though :D


haha... I'm allergic to boost!! - someone's got to be different and go the na route ;)

anyways, thanks for the response - I'll try tuning the VE bins around idle a little more..... it seemed after the WUE went 'off', if I adjusted the VE ...

Details are in my sig link, but I've handed over fuel to MSII; and after figuring out where I needed to tap the tach signal - it fired right up! I didn't have to make a single change to the Req_Fuel, cranking pulsewidths, etc....

It has been a *steep* learning curve, but I'm looking forward to the ...

No, peak power will occur in the region of 12.5:1 - 13.0:1. Your exhaust gas temperature will be dangerously high running stoichiometric mixtures at WOT, you may even lose an exhaust valve or two.

thanks for the correction for the newbie :) after re-reading the thread, I realized my '14.7 ...