CHILI's Microtech ECU Dyno Run 27/1/05

Here are todays dyno charts from UAS (best run 271.9rwkw[364.6rwhp] @ 18psi), other runs at 8psi, 10psi, and 14psi respectively.

 

Nice result! you running stock turb's?
I dont even get that figure in horsepower

 

Tech specs in profile.

Stock turbo's, hi-flowed with 3mm larger Compressor Wheel. Stock injectors. O2Rush Pod, 3" exhaust system from engine pipes. UAS Corner Mount IC's. BP Ultimate fuel.

 

Nice work chili :thumbsup:

 

Re: Tech specs in profile.

Just came up not available when i clicked - but thanks for the low down. More I think about it the more inclined I am to get corner mounts.

 

got some questions chilli.....

hey great power figure by the way, thats fantastic....

Anyway, if i remember correctly you had a unichip a while ago?? is that correct or am i mistaking you for someone else?? If so, what did you think of it and what made you get the microtech in the end??

also, how does the car run with the microtech?? like cold starts and stuff????

Cheers

 

Cold starts etc depends on the tuner!

Isn't the unichip just a piggy back and isn't tunable? Ie.... just leans out the fuel mixture and advances timing in general. Microtech would have to be tuned and would be optimised for that exact motor and modifications that its controlling.

Nice power figure btw Lloyd! :thumbsup:

 

unichip....

is a piggy back computer but I like it because it leaves lots of the car operation to the nissan ecu, without requiring a tuner to tune it for you. So as such, cold starts are much easier since the factory ecu controls that and i believe the microtech does not use the iav. Also I like the ability to do ecu diagnostics, an ability you lose once you rip out the nissan ecu. The unichip is really only used to tune the part of ecu when you step on the gas. As such, i think most of the closed loop of the ecu is left untouched. However, you can tune any part of the ecu with a unichip if you really want to. My only fear with getting a microtech is that it wont be tuned properly and run a little crap. I dont want to sacrifice the "niceness" and driveabilty of the car to get more power. Dont get me wrong, i'm sure the microtech is superior, but since i'm not chasing really big numbers in my NA, i believe the unichip will suffice..... of course i could change my mid tommorow and get a microtech.. :LOL::LOL:

Cheers

 

Oops! :embarrassed: Try "Profile" now. Me bad!!

 

Inlet temps

It would have made more with a FMIC as the corner mounts don't do cut it. Ambient was around 26C but inlet temps got to 60c even on the road. FMIC would only have been around 35 to 40C. Chili don't read this you could make around 280 to 290rwkw with less heat and more timing.
Yes Microtech is more involed Jedi and fiddly to tune and if not tuned right can be prob. It does have some features that are trick including adjusting timing depending on inlet temps. Also has optional digitial dash display and does away with troublesome and restrictive AFM and no 02 sensors. If building big motor with big turbo's you need aftermarket computer.

 

Yes I had a Unichip ( it's for sale now. )>>

Unichip is a good upgrade IMHO, and I was happy with it until I went beyond 240rwkw, then it was starting to struggle. If you don't want more than that, you would be more that pleased with one.

At the time of my engine rebuild (bit over a year ago), it was obvious that the current specs were pushing the upper limits of the Unichip's (and the stock injectors) ability to cope. At the time, Spiro at Autotech advised that the best course of action would be to change the ECU as soon as I could afford to.

At the last UAS Dyno Day, my car was having major problems with A/F ratio (very erratic), and as a result the power output was severely restricted (didn't want to go home with a bucket of schrapnel.:LOL

So I made the descision to go to the Microtech (it does away with the AFM, and the O2 Sensors, apart from some other advantages.)
ATM, the engine is running very strongly, and smoothly, although the idle is a little high (1200rpm with A/C on. 950/1000rpm with it off), and the A/F ratios are real good. The Blitz Dual Boost Controller is set at 8psi, 10psi, 14psi, and 18psi. At 18psi it drops off just marginally (see dynochart).
Cold starts are fine (now that it has been fully tuned.)

 

You did sell me the corner mounts John, didn't you?? :LOL:

 

Why dont you test it?

Take chilis car in, remove the front fascia. Do a couple of runs with his sidemounts. Pop in a front mount, then repeat another couple of runs. Dont change anything else. Id like to see this 10-20rwkw gain from a front mount.

 

And for a control, it would be best to pop a pair of stockies ...>>

in for a couple of test runs.

You would need to pop the facia back on for each test but you wouldn't need to put all the bolts in.

 

If you could be bothered....

inlet and outlet temps plus pressure drops would be good also.
Hardly anyone ever tests like this anymore. Id love to see real before/after dynos of a lot more mods done to 300s.

 

How much for your Unichip??

 

good result - i'll update the dyno list :thumbsup:

 

That would be very interesting, i think they should do it

 

More info

We have done plenty of tests with pressure drops on my car and others on the tack on the road and dyno. No one else in Australia do the R & D and testing that we do which is time and money and in a perfect world we would have a guy full time testing etc but not economically viable obviously. We have done plenty of comparison tests for example today Shifters car is here checking air fuel ratio as he was concerned it may be lean. As I suspected the air fuel ratio is fine on our dyno around 12 to 1 or slightly richer, so air fuel ratio metre from the Canberra dyno must be out. It could not be 13.5 to 1 and not ping its head off especially on the hot day Shifters car was on the dyno.
We do zeds six days a week and lots on the dyno with every type of intercooler on the market probably and we know FMIC inlet temps are much lower and make more power full stop. I could say the opposite and say corner mounts are better than FMIC and I am sure the opposite arguments would happen. Zilsuv GO AWAY again you are just stirring and sticking your nose in. Your short ban from the forum seemed to have little effect.
Do the math 20c cooler with no more timing and power difference is more than a few kw.
In case you are thinking I am pushing our product,
Chili has our UAS corner mount intercoolers which are way bigger than factory and prob the largest on the market in the corners but simply not as good as our FMIC. Our normal FMIC is over a third larger volume size and probably 2 to 3 times the frontal surface area of the large corner mounts. So go figure.

 

John, that was a little uncalled for ...>>

what Nathan said was quite reasonable.

A straight back to back test on the same car would provide empirical data that testing two cars side by side can only imply.

Surface area of UAS Corner Mounts 1160 sq cm, surface area of UAS FMIC 1800 sq cm. FMIC is 1.55 times the size of the COrner Mounts. Volume depends on wether you use the 75, 90 or 120 thick FMIC.