formula350sd

Ok I have a really dumb question whats the difference between the vortec balencer and the regular one I assume the thickness to clear the crank sensor right?

Mkos1980

Yup. The snout on the balancer has to be machined down the thickness of teh crank reluctor ring, so that the balancer doesnt stock out farther and mess up the pulleys

scuzz

Best thing to do is go to junk yard and get balancer, reluctor ring, timing cover, coil, and dist from a junk motor at yard. Then, you have it all.
I got the whole pile for 35.00 and take it off a couple weeks ago.
It would probably cost that much to pay a machinist to trim off the balancer.

Mkos1980

True, but if your balancer was balanced with your current rotating assembly you wouldnt be able to switch. Plus you cant buy Hi-Performance balancer.They are all standard OEM 8in. It did cost me 35 to get the balancer done. Apparently where you live there is alot of cheap places as every place around here wanted 20 for the balancer and upwords of 50 or more for just he coil and ig module. The going rate for a used Vortec distributor over here was 150 bucks.

formula350sd

yeah and theres no F'N way im not gonna use my fluidamper

madmax

So what would prevent someone from running some sort of DIS like the CNP on a 4th gen instead of the Vortec distributor? Just the cam sensor?

1989GTATransAm

Right, do not use a fluid damper for a performace motor. I can link you to a good thread on the subject if there are any doubts.

formula350sd

I would like to see this link

1989GTATransAm

Here you go. Read through all the posts as you will get different points of view. You will notice some bigtime engine builders replying to the thread.
http://www.speedtalk.com/forum/viewtopic.php?t=5135

1989GTATransAm

Couple of questions for those in the know? Looking at the computer on the pictures that Mikos1980 kindly posted it looks as if the new harness will allow the 411 computer to fit in the same spot as the old TPI computer. Is this so?

Also with the new harness I assume the firewall plug for the main harness will fit in the same spot as the old TPI plug even though it has more wires?

Just trying to gets things squared away in my mind. Thanks guys.

Mkos1980

The ecm will fit up there with no probs. As for passing though the fenderwall area. Its through there but the square snap in piece behind the fender doesnt work anymore. I dynamatted that area to cut down on noise and and water that may get up in there. As for the connector on the firewall, you use your stock one. You have to merge that area of the orig harness with the new harness.
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I'll try to get more pics this weekend.
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Guys.... Let me know what you want pics of and I'll get them. Also, when I get a new harness from Mike for Justins car, I will show you how to merge them together with the stock harness .

1989GTATransAm

Thanks. As they say a picture is worth a thousand words. Allen

vernw

That would be great to see - especially the parts where they actually merge. Is that at the firewall connector, under the dash, or ???? (shows how much I know about doing this conversion, huh? )

scuzz

I posted the cal in zip format on the other thread if anyone wants to look at it. You'll probably need TCII.
http://www.thirdgen.org/techboard/di...n-gen-i-2.html (Sequential Injection on a Gen I Motor!)
Thanks,
Ron

Justin89Formy

I cant wait! I have almost all my parts for this swap. My harness is being made as I type this, and my O2 sensors are on the way! All I need now is a set of plug wires, a knock sensor....I think thats it!

You better believe Im driving to Ohio for this swap as soon as weather permits! I cant wait!
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also, does anyone here have an extra TBI harness that they want to sell cheap? I need one to hack up for my 411 swap

Mkos1980

You got your timing chain set?

Justin89Formy

no

Randy92Z

Im interested in doing this swap, but Im wondering about my TCI Super Dampner? Mkos1980, what exactly has to be done to the dampner to get the crank sensor to work? You mentioned machine work? I guess a pic would be great. Im using a ext. balanced 383. Thanks!

Also what are your thoughts on the 411 running a 520 hp 383 Miniramed car with 240/240 @.050 cam? Thanks again.

Justin89Formy

you put a reluctor rung behind the timing cover. Its job is to help produce a signal for the crank sensor. Obviously the reluctor ring is going to take up a little space on the crank. All you are doing is machining the width of the reluctor ring off of the snout of the balancer so your balancer will fit back on all the way!

Mkos1980

Should be cake with a good tune.

Randy92Z

Got it.

Justin89Formy

got one of my two ordered O2 sensors yesterday lol. Still waiting for the other one. Going to get my plug wires, and Knock sensor this week. Timing set next week, then I jsut wait for the snow to melt

1989GTATransAm

Snow? What's that?

Randy92Z

I think one of you guys should do a tech article write up on this. (please, and thank you) With lots of pics as you go about installing this. S10Wildside, Mkos1980 Maybe?

vernw

Now that sounds like on heck of a great idea. Especially since this conversion has caught my attention as well...

Mkos1980

I will try my best to start one up. I just bought a new house and that all I've been thinking about lol. But I will give a VERY detailed write up soon.

Tony89GTA

That would be awesome if you do!!

S10Wildside

I'm all for a tech article on this swap with pictures. I'm currently about two days behind in about everything at the moment. Then I came home yesterday to way too much snow and a snow blower that didn't want to run. Anyone have fuel injection ideas for a snow blower, LOL!

About the connector/grommet on the side of the car...I'd like to offer those with a harness, but the minimum order quantity is crazy. Now if we could get hundreds of these harnesses built....

scuzz