I can't get the numbers to line up - hard as I try!! Let me know if this doesn't make sense. The numbers are all there, you just have to line up the columns.
The .5 lift column numbers only go with the ported intake, 1mm larger and ported exhaust.

Randy

 

type in underscores instead of extra spaces

 

Genius! Correction made, thanks


Randy

 

With What?

 

Maybe with an AEM EMS? (http://www.aempower.com/product_ems.asp). While there isn't one available for MINIs, I'd bet Randy and/or other vendors would be able to convince them that demand exists for the product. I've heard great reviews from S2000 (my previous car) owners who have used this product.

 

The little computers in our cars aren't that complicated. They have a CPU, and a bunch of I/O electronics (so they can do things like fire a fuel injector). The one in my Mustang (EEC-IV generation) can be programmed to run a 4, 6 or 8 cylinder engine. The real pain is that the car manufacturers don't really want you mucking in thier guts. And the computer manufacturers don't really release the tech notes for the CPUs (I looked at Siemens, acting as though I wanted to make my own engine management system, and only could get to contact numbers, not even a good description of the product offerings).

Any of the race computers can do the trick. The hassle is the wiring, and making sure that the sensors and outputs match up. Some can be done through SW (like A/F curves for different O2 sensors), but some would need the correct hardware to play.

This is a BIG change to how your car is managed. But it opens up a whole new world of control. Knock sensors? Wideband O2? Boost inputs, Nitrous oxide.......

And FYI, I haven't gone this far in my Mustang. I'm running a custom program some guys at Infineon did when my car was on the dyno (and I'm really bummed I haven't seen how good it is yet, not back from the shop.) Some other news for those of us that use modified tunes. The original program (Dioblo Sport) was done in NC. I live in CA. It was great in NC but pinged like crazy in CA. It wasn't the octane rating, but the oxygenation additive that was the culprit and lead to the ping.....

changing computers is BIG in the ricer world. there is something we can learn from the Honda crowd :smile:

Matt

 

There are big issues to be resovled for a street car swapping to a MoTec for example - this car is a drive by wire, so you need to go to a cable driven throttle body and gas pedal. The ECU runs the speedo, the cruise control, just a ton of things that most aftermarket units have no provision for.


Once you get it running, you have to work out the tuning and the bugs.

By the time you are done, the cost is sooo prohibitive, I don't think many customers would be willing to pay the bill.

This ain't no Honda!

Randy

 

I want to ditto the many thanks to Randy of Webb Motorsports and Dan of Pilo Racing, for their research efforts and product offerings, such as the headwork and related products. As noted, the MC with the modded head and other mods, probably will not get as high a gain as the MCS. Even so, I for one plan to get these mods (head, header, cam), but just need to wait a bit first. They should improve performance by a really noticeable amount I think, and combined with lightening the car however you can, will provide for a fun and nice ride! I'm very excited with all the developments! Keep up the good work guys!

 

Randy: did you ever measure actual valve lift using the Schrick cam compared to stock? I examined the stock and Promini cams which open the valves I: .330/.378 and EX: .310/.343 max. (stock lift/Promini lift) using 0.00 lash

 

I pretty much agree. I think the replacement computers are only a good idea for a die hard racer. It is a lot of work...... but as to the cost, I saw a thread on the $10k in mods club, and there are people who have spent even more! That's getting into replacement computer and sensors range....

Even in my Ford, the computer has limitations, but that doesn't stop people from using it to run well over 600 hp. (Seen myself, with a home built twin turbo set up on a 5.0 EFI in a 67 FB, it was even running the stock maps, with MAF and Injector upgrades....)It's all in the programming.... While our little ECU may be a limit now, I think there may be more control to be had as we learn more about the EPROM maps, and the ECU programming tools get better.

This is what I want for my ford, and I'd love the same thing for the Mini....

http://www.tweecer.com/

Matt

 

here is some old info on my rig, with some comparison shots:

http://www.mini2.com/forum/showthrea...ght=head+shots

 

There are two cams from Schrick - the first is similar to the lift you measured (it's probably the same cam). The other was slightly larger - .46I and .43E, but that's the limit, as you actually have to clearance the spark plug tubes to make that fit! That is valve lift.


Dr. Obnxs,

We have the new 40 pin Unichip coming out first quarter that will allow even better tuning than the current version. I just don't see it worth the cost of the stand alone units considering the gains you may or may not see above and beyond the tuning capability we already have.

Hope that helps!
Randy

 

Here are some of the flow bench shots:







Randy

 

Hi Randy, I'd agree that things like this are more than most need. But for those with time and money.......

And I guess that the stock ECU is close enough to good that a product like the Unichip can get us where we want to go.

Also, if you want a beta tester......

 

Randy, thanks for providing the stock lift vs. flow numbers.