my turbo build

You really shoud hook up your PCV valve.

im going too just need to get a couple fittings

this has been a cool build to follow, just went through it. neat to see it go bigger and better every step. have you ever thought about getting a megasquirt to run it? they are pretty cheap, super easy to tune if you have a wideband, and you can swap to those bigger injectors with ease as well. in for updates hows the new motor holding together?

holding together great so far. im currently running 460cc rx7 injectors boosting at 16psi with a base fuel pressure at 18psi. I have turned the boost up to 20psi a few times but I cant keep intercooler pipes together. they do very well in boost and idle but are a little rich at cruising speeds. I have a a/f ratio of around 12.8-13.5 cruising id like it to be around 14.5-15.5.

as for megasquirt I have thought about it. I just don't have the knowledge to run it as of now. this has been my only EFI conversion and it has been interesting. I have built numerous small block chevys all carb'd. but overall I do plan to run some sort of standalone in the future with a lot more boost.

the b2600 injectors I started with would lean out at 7psi with a base fuel pressure of 28psi.

start reading through the megamanual, and on the megasquirt forums, its actually pretty easy, and as far as wiring it, youve already done that, just tap into the harness or take apart an ecu for the plug and make an adapter to be able to run you ecu if you ever have issues. they are about 250$ for a u build it kit (not to hard just follow instructions) or 400$ for a built one, and you already have everything else you need except maybe an air sensor and a stimulator if you build yourself. i highly recommend it, then you can dial it in nice and lean in no load situations and proper fuel in loaded situations. really easy to data log and self tune on the street as well, i spent a couple days for about an hour a day doing my final tuning, went pretty well. mine was an f2t swap with no distributor.

that is a lot cheaper then what I thought they was. I looked into megasquirt before I bought all my efi stuff and seems like they was close to $800 but then again I had no idea what I was looking for. I would defiantly go for the buildable ecu instead of pre assembled. do they require a laptop to tune or how does that work? and what is a stimulator? I would probably have to convert to coil packs of some sort since im using a n/a ecu with a stock vacuum advance distro right?

you can either run coil on plug, wasted spark (ford or gm coils) or the stock coil through your distributor (just lock out the advance function). you can also trigger the ecu from your distributor, either with an efi one or your current one as well, just need to remove 1 or 2 of the trigger bumps inside it, the mega manual should tell you what you can use for a crank trigger signal (4 - 1, 8 - 1, 12 - 1, 36 - 1, etc). a stimulator is used to simulate the engine sensors for testing the unit and powering it while you build it. yes you tune it with a laptop, tunerstudio is a pretty sweet program, when i did mine i used megatune (not quite as easy) heck if you register studio it even has an auto tune function (and no it doesnt make your voice sound funny).

i would get an ms2 v3, unbuilt kit,
the open element gm air sensor
a jim stim (or whatever the current stim is)
a 6ft harness (the basic kit comes with a plug if you want to save and just wire into the plug yourself, which you will want to do if you decide to make an adapter plug with another ecu socket)
1 or 2 relay control add on kits
a second ignition coil controller kit (comes with one in the basic kit) if you want to run wasted spark coils down the road

i think thats about it, it comes with a serial cable, if you have an older laptop with a serial input your golden, if you have a newer unit i recommend getting their usb to serial converter (or their bluetooth wireless unit is pretty slick, i have one waiting for my next install, i have 2 full ms2 systems on my shelf in my shop waiting for installs)

you already have all the other parts required i think, can even remove some things like your maf sensor, etc. the MS runs via speed density (a vacum line from MS to intake, map sensor is in the unit).

any other questions? this just amping me up for my install when i get home

only problem I would have is I don't have a laptop I use a desktop. would you mind posting a link up to the kit you are talking about? I cant seem to find it on DIYtune. as for the programs to tune with are they included with the kit?

maybe 2 of these



1 of these, just incase you decide to go wasted spark



1 of these for your intake air temp



and one of these for tuning



tuner studio is a free download, free to use, but there is more cool features if you pay and register it. they also have the bluetooth adapter on the tuner studio site

and heres their bluetooth adapter. you can also get an android app to tune from your android phone or tablet with the bluetooth (i think its called shadpw dash?) they all the info on there.

now you can setup your base file on your desktop, but you need a computer of some sort in the vehicle to data log and bang out your tune perfectly.