miamisc2

me noob, you jane. anyway, i decided i need a daily because of another project and i figured i could use my old v2.2 ms1 to put into a miata if i decide to buy one this weekend (99/00 w/ lsd) i've always loved the cars and i'm pretty certain i found the perfect one... sorry to post this intro here, but anyway... anyone here squirt a 99+? any major issues i should look out for? i'm just looking for 180-200 hp, boosted.

mschlang

Did you check out this thread?

https://www.miataturbo.net/forums/showthread.php?t=3636

miamisc2

looks like no one's done it on a 99/00 yet. oh well, it shouldn't be too hard, especially since i'm not looking for spark control with this unit.

thanks though.

Al Hounos

Aussie driver did it on his 99, but he used a 1.6 cas and ignitor.

And don't be silly, of course you want spark control.

miamisc2

with the stock ecu running spark and the ms controlling fuel, how will the ecu react? (just going for a bit of boost). i've noticed a lot of you guys on here have been retarding your timing it seems.

i'd have to change a couple things to get my old ms working with spark. i could always just get the ms working and not boost until i can get the ign control working.

you guys use a dis right?

mschlang

The stock ecu is suprisingly happy with just about anything.I've run various combinations of spark and fuel with no problems. Running boost with no spark control is asking for wasted hp. Big gains are in the spark, fuel just keeps things from self-destructing.

kingofl337

Putting a MS in a 99 fuel only should be very easy.

Reverant

iTrader: (10)

Spark control shouldn't be any more difficult.

cjernigan

iTrader: (13)

Ok, I also have a '99 I plan to run MS eventually and I already have some high impedance 550 cc injectors. What is going to be the difficult part of running spark? Will it be getting my dwell times correct or something else that is the difficult part? Do I need to look into getting some 1.6 coils/ignitor to make this worth my while. Is it difficult because the 1.8 coils don't have as much adjustability as other types of ignition systems? I could go the MSD route but like everyone i'd like to keep things cheap and use stock components. I do know that I will need the early model CAS.

Reverant

iTrader: (10)

Just the CAS - that's all you need.

Flippy02

I know it's probably around here somewhere, but are there any diagrams to wire up a CAS on a 99 1.8, so taht i can install an early model 1.8 ecu, or for my future mega squirt install. i forgot to mention that i have a CAS from a 96, with the pigtail connections i'm just not sure how to wire it up. i'm probably not looking hard enough

Reverant

iTrader: (10)

As you look into the connector on the cas (the shaft pointing down):

GND, V+, CKP, CMP

Connect the GND on the same ground as MS, V+ is 8-12V power supply, CKP is connected to pin #24 on the MS, CMP is connected to pin #25 on the MS (24,25 per the instructions posted here in the stickies).

cjernigan

iTrader: (13)

Thanks reverant. Looking forward to doing this relatively soon, just trying to get all my parts together for the build.

Flippy02

are there any power sources anyone would want to recommend?

cjernigan

iTrader: (13)

For constant power I'm pretty sure you can use the lug on the fuse box.

Flippy02

i wasn't sure if it had to be a constant power source. where would it be wired to on a NA 1.8?

Reverant

iTrader: (10)

Yes, use the +12V that powers the stock ECU.

kingofl337

Reverant why didn't you use the crank sensor when you did your setup and just use the CAS for the CAM sensor?

Also for power you should use the same power wire as the MS uses for power.

Reverant

iTrader: (10)

kingofl337, as soon as I connected the crank sensor to the MS it wouldn't run, the stock ECU stopped receiving the RPM signal and the engine would stall (I was still using the stock ECU for spark back in them days). I guess it won't stall now, however if the stock ECU doesn't see proper RPM, it won't activate the idle valve (including A/C bump) and it won't control the VVT, the VTCS and myriads of other tiny little bits in the 01+ 1.8 engine.

cjernigan

iTrader: (13)

Do you think a '99 1.8 without VVT would have problem running off the CPS if I was to run Spark and Fuel off MS.