Ok so I have lurked and posted in this forum for years but am finally able to start my own. Have a 94 Lt1 going into the car in my sig. My swap is going to be slightly different than most. The plan is to have the intake drilled and modified for a distributor and then run a megasquirt setup. Harness will be tucked as cleanly as possible. This leads me to a BIG question:

Who can I send the intake to for the mods needed for the distributor?

Engine is going in with my longtubes I already have. Plan is to finally finish my custom off road y setup. Engine has ran 12.2@110 in a slightly lightened lt1 formula and was just a bolt on setup. Has Manley springs and Crane Gold 1.6 roller rockers installed already as well as a CSR electric water pump. Going to be backed by my t56 with a spec clutch and a 4th gen 3.42 10 bolt.

Pictures should be up soon of the progress. First step is to get the intake modded and the harness/ecu ordered.

 

You'll need to modify your heads to take a pre-LT1 intake like the TPiS Mini-Ram. The LT1 plenum and runners just won't get any air to the rear cylinders if you butcher it far enough to fit a dizzy. TPiS has a version of the Mini-Ram that's intended for Vortec heads, that'd be the best way to go.
But since you're going with illegal electronics, you may as well go with an illegal intake. There's a version of the HSR that's for Vortec heads, you should adapt that. It'll make slightly better low-end, and is cheaper, than the Mini-Ram.
You can TPI an LT1 if you're so inclined. Accel makes a base for putting the SuperRam on an LT1, then just use whatever runners you like with any '85-'92 plenum.

 

As far as I understand you just have to drill a hole and then have a spacer welded to the base for the distributor to sit on. And since the intake is going back on lt1 heads I shouldn't need any other mods.

I definitely don't want to go with any tpi style intake as I am not a fan of them or their torque production at all. I have thought about going with a single plane intake but don't want to pay for all the mods needed to do that.

 

I have a 86 iroc with a t.p.i.s mini ram, and a 58 mm throttle body, fits and looks as good as it performs . how do you guys post a article,or a thread, or what ever you call it ?

 

That's fine with a small-cap dizzy, like the '88-'92, but MegaSquirt requires a large cap version, like '81-'87

 

The EGR base can be cut off for more clearance if needed



Clearance issues from a large cap dist are near the fuel rail, not the intake. Modify it for AN fittings and youll be good to go



Try this at last resort
http://msdignition.com/Products/Dist...butor_Kit.aspx

 

Why is that? What's the difference between the two distributors?

On the DIYautotune website they show a conversion they used a small cap setup for?