Seeking advice and warnings:

The car is a 383/6spd dedicated track car. It is set up with a carb, but that just is not satisfactory and it's going.

So this is a fresh page.

Obviously there is no emissions.

The Instruments are analog.

And we have a new MSD 6Al & Dizzy.. But likely dump that for an HEI

DIY Auto Tune Mega squirt is the current interest [ 4 miles away so handy] . So we have that info rsource.

May go "stealth ram" type or TPI [ have a TPiS "TPI" set up in the parts locker].

Jon Banner is lining up injectors and we run e85 .

But there is always a couple sides to every story, so thanks for input

 

i would not even second guess a thing , i would go with the HSR if it were me and your willing to get a hood to clear it. but in the case of a dedicated track car you may be wanting the more low torque of the tpi even with its limits so a lil harder call but i think i would still go hsr as you dont lose that much low end torque and the gains everywhere else seem a good trade.
just my opinion but good luck on the swap either way

are you going to be going with one of the stock style ecm's? maf or speed density? or going with something more like an aftermarket or megasquirt?

 

I lean toward the stealth ram. Hood looks stock except for the 2" rise for the Carb... plenty of room.

We have a 383 with a 6" rod... Torque over 380 ft lbs at wheels from 3K to 5K rpm using Alcohol .


Want a MAP system, which sort of excludes any stock ECM with a long stroke higher displacement motor?


Mega squirt seems the logical choice. My partner is a Geek, so a kit is a rational, inexpensive, alternative to fiddling with a stock ECM And DIY is right in town [ Atl].

So far nice things said about DIY?

 

sounds like plenty of room under the hood and yep megasquirt i think would be my choice as well.
i have a al. headed stroker done and setting on the stand right now as a matter of fact with polished HSR setting on it and plans are to mate to a megasquirt as well if i ever figure out what i want to put it in, was going in this vette but decided i want to keep it more daily driver and efficiant with todays gas prices.

best of luck with it

 

Thanks Same too you.

 

I to think you are on the right track with the MegaSquirt.
A properly configured MS2 would work fine for the setup you describe, but I would probably go with an MS3 w/MS3X for a few buck more.
That would let you run sequential and perhaps in the future Coil on Plug / wasted spark. You would also have plenty of room to grow for just about anything you may come up with in the future.
2 stage progressive NOS, boost control, EGT sensors, etc...

 

Yeah.. decisions .... decisions......

I like Megasquirt but I have bought to many things that are supposed to work... Leaps of faith are getting MUCH smaller as I grow older.

It all sounds good... but I haven't seen a BOM on the Build Your own models... they got to have one?

AND the M2 and M3 both have boards NOT designed for DIY???

More like Screw IT Up Yourself ..... [and don't call us .. we told you your on your own...].

So .. decisions... how much is it worth not to do it wrong... another hour on their web site to sift through too much info!!!

 

The primary main boards for MS1, MS2 and MS3 are v3.0 & v3.57.
They are essentially the same Except, the v3.57 is SMD on not for building yourself. If you want to build it yourself, then a v3.0 is for you.
Most people these days don't build it, but many still do. There can be a bit of kick out of building your own ECU and it really isn't as hard as one might think. It usually takes 6-8 hours of soldering and if you run into trouble there is great forum support.

Once you have the v3.0 or v3.57 it can be a MS1, MS2 or MS3 depending on what you get to plug into the 40 pin socket.
For an MS1 you plug an MS1 MCU in, for MS2 and MS3 use the pre-assembled daughter cards.


Skip the BOM and buy a kit or assembled unit. DIY Autotune has pre assembled or build it yourself kits for any of them. The kits have everything you need and each part is in labeled bags so you know right were it goes.

MS3 built:
http://www.diyautotune.com/catalog/m...ase-p-420.html

MS3 Kit:
http://www.diyautotune.com/catalog/m...ase-p-419.html

There is also a MS3X card that you can add on or get with either of the above. That provides all the IO you need to run 8 sequential injectors, 8 coils and lots of other IO for an SD Logging switch, NOS control, boost control, Converter lockup, tach output, additional sensors, Shift light etc..

You can also step up to the Pro series such as the MS3-Pro. That has everything the MS3 w/MS3X has plus a few extra features along with a water tight case with AMP Seal connectors:
http://www.diyautotune.com/catalog/m...ess-p-538.html