can you use this on a L98? and does anyone here use it?

 

megasquirt can be used on anything you want, some just take a bit more work to get up and going than others. I had put together a MS setup for my 89, but never got it done (only because the car had to go).

 

YES! i have built my own megasquirt and am still ironing out the wrinkles. but my build was for an old import car. if i had don't it on a chevy it would have been a million times easier!

 

another question.....when carbing.....what all can be junked? i know i read all the wires on the passanger side.....

 

www.diyautotune.com has all the gear you'll need and they have basic "how to" guides.
I built my own MS from a kit and plan to use Ford's EDIS and the MS to go distributorless and with real time tuning. (I have an LT1) with an L98 you can skip the EDIS bit, still use your dizzy for spark but control your boost, elec fans, fuel etc etc with the MS. I've seen the MS work with my friends' Mustang. ('85 rustang with a DOHC late model rustang motor) .. It was very impressive to drive down the road with your laptop and make adjustments as you went. Not to mention a tiny wiring harness.

 

luckily for us chevy guys MS is based off chevy wiring and connectors. im running it for my turbo car and its pretty decent, i would like to get a more updated version of it though.

as said above it is nice to be able to tune on the fly and not have to burn chips all the time. drive around and make adjustment as you go

 

proof of the "on the fly" was observed here when I was driving buddies rustang when he was tuning. Having me do different things with the car to see how it was running. He decided to scale the whole spark table 1 deg and he accidently hit "E" on the keyboard.. STALL... lol..

One thing about the MS. You need to get yourself at least 1 wideband O2 sensor. Narrow band sensors (such as in most cars) read lean and rich but not much inbetween. Wideband gives you a scale so you can tell exactly how rich/lean the car is. It's like $200 for the sensor and controller plus you likely want a fancy gauge on top of that but it's not necessary since you can make your own if you're nacky or use the laptop.
MS will also learn on it's own. Once you have the car running decent you can tell the computer to adjust itself same as other computers do.
Man, after this I really need to buy something to give me an excuse to use mine! lol

 

I have a Megasquirt II running the extra code. It's very cool. I use Tuner Studio MS to tune it. DIYautune.com has a TPI(165) to Megasquirt adapter so the there is almost no custom wiring. I wired in my wideband O2 meter. It was very easy to build and test with the stimulator kit. My MAF died so for about the same cost of replacing it I went with a easy to tune MAP system. It fits in the stock ECM case if you replace the DB9 connector with a cable soldered to the PCB.

With the car running you can open a table and the cell that is active is highlighted, make a change and see the result on a o2 gauge in the program. It makes it very easy to tune. No burning chips.

 

How is a 36 pin parallel connector like GM wiring?

I tune on the fly with my GM/Delco ECMs.

The only MS I would consider is the MS3 with the MS3X board, and only in very specific applications.

 

The adapter uses the ECM connector of a 165 that plugs into the car and the other end plugs into the MS.

 

Yes I know about that adapter... I've bought a few things from DIYAutotune.com.

But I was asking in regards to what Pillsbry10 had said.

I've never understood why anyone would want to lose features going from the Delco ECM to an MS.

MS3 is about the only one that seems to retain most of the OEM features, and adds a few more, but at almost $500 ($700, with the 3x card) the OEM ECM becomes a much less expensive item to tune in real time. If I decided I need Sequential injection or ignition control of COP, then I might consider the MS3 with the MS3x card.

My biggest dislike of the MS, is the fact that they use computer connectors for the inputs and outputs. These are not meant for the vibration of temperature changes that vehicles go through. There is a company in Quebec that makes a sort of daughter board for the MS1/2 that gets soldered in place of the DB37 connector, and uses more robust connectors, that are closer to what the OEM uses, and would be more solid. These connectors should have been used from the start. If they were, I might have an MS right now, maybe.

 

i drive L98 wih 383 stroke on HSR - MSII with TPI adaptor board dose the job, only thing that i removed was MAF

Best regards

 

Computer connectors? Actually, D-subs predate the personal computer by a couple decades. I haven't seen any of the crimp type ones fail from vibration, although the solder cup ones have been another story. That said, it looks like the MS3 will be the last official Bowling & Grippo product to use them for anything except connecting to a computer, and it kept them because it was designed as an add on to existing boards.

 

Ill be installing my my ms2 v3.0 board this weekend or next. I had it built in a little over 10 working hours after work. Im using a gm tbi unit with edis for spark. I researched my combo for hours before spending a single dime on it.

Heres the build thread i did for mine. I need to upload some pics of the mock up stages for the edis stuff.
http://www.v8s10.org/forum/viewtopic.php?f=24&t=29063