Hello gentlemen!
I'm currently waiting for my willem programmer to come in, but I've already got a 24 pin to 28 pin adapter, ZIF socket, and several chips from Mr Moates. My question is, should I start off with the 299 computer or the 747? It seems all the rave is over the 747, however when I load the definition files ($99 - 299 and $42 - 747) I notice that the $99 has a little more rpm to play with in both the SA and VE table.
(mind you, I've never actually done anything with a chip, all my current knowledge and lingo is simply from reading so if I say something that's completely whack please let me know because I just don't know any better).
I really can only make informed guesses as to what some of the other tables and whatnot are in TunerPro for each mask so there may be some function or capability of either computer that I'm just completely leaving out.
To me, it seems like a no brainer that you want the bigger table(s) that the 299 has. I just don't want to solder one up only to find out I should have used the other one. So, I'm coming to you for a little knowledge.

Also, if anyone has a working .bin for the vortec engine I would absolutely love to burn it and swap it in immediately. I'm dying to go head first into this thing. My build is roughly:
350 .030 over
Vortec heads
z28 springs
1.6 roller lifters
HT383 roller cam (just a new pullout from a crate ht383)
Flat tops with 4 valve reliefs
55 lbs/hr injectors

The car is an 82 280zx (about 2800 pounds) with a 3.54 rearend running an airtex external fuel pump which looks to be hitting right at 10 psi. I know everyone wants to run at least 13 psi but I wired my donor gas tank up and it pushed 10 psi as well so I figure I can at least get a little tuning/driveability out of the thing before I start jacking with fuel pressure. I did the whole pinch the return line thing and didn't notice the car running any better. At the moment the car accelerates decently on the low end as long as it's cold and you go very easy on the throttle. Once you get on it or it warms up it runs pretty rough. It's really barely driveable with its state of tune so it's parked at the moment until I can get it running better.

(Additional reading): I realize there are several things that would come to my mind if I saw someone post this. First being, that's a lot of compression for iron heads and that cam. I agree, I think I remember calculating 10.2:1 whenever I was building the engine and that's a little scary for normal gas but I got the set of TRW forged pistons for $100 and I just couldn't help but throw them on.
I also think the cam has a good amount of duration (even if it is under .050" lift) that it should bleed off some of this compression. I know there are calculators for static/dynamic compression but this engine was just something I had sitting in my garage and I really just put it together with stuff I already had. Basically, I'm going to work with what I have.
Cam specs:
The duration at lash point in degrees (intake/exhaust) is 288/308; duration at .050 lift (intake/exhaust) is 196/206; and maximum lift with 1.5:1 rocker ratio (intake/exhaust) is 431/451. Valve lash is zero/zero and lobe centerline is 109-degrees (PN 14097395, cam only).
I've also put different valve seals on to increase valve seal to retainer clearance with the 1.6:1 rocker arms.

Anyway, surely in all that I've covered more than enough details so please let me know what you think and I'll be happy to answer any additional questions. Thanks!

 

EITHER...Realistically the 299 is a little better ECM, but the 7747 is just about equal....Both are archiac to the TBI PCM.

 

The 299 being better simply because of the larger tables or are there other pluses to it?

 

You are aware of the EBL-ECU? see dynamicefi.com for more info.

 

55 lbs injectors on 13 lbs FP only supports 200 HP. 21 lbs FP supports 249 HP. 30 lbs FP supports 297 HP.

This is at crank BTW. FYI

You may need to run a diff fuel pump and regulator.

 

Yeah I've heard of the EBL but I don't want to drop that kind of cash on a computer honestly.
After I looked into the injector sizes some more I must say you're right. I'm going to modify the stock regulator and see what I can come up with. WOT is not my main priority right now. I'd like to get my feet wet with tuning and chip burning before varying from the stock fuel setup too much. I'd like to know if I could hit 30-35 psi with a modded factory fpr? I have searched everywhere and haven't found anyone talking about going above 20 psi except I read you could buy a spring from tbi parts that would let you adjust the modded tbi up to 40psi. Couldn't find the spring on their website though or heard of anyone doing it...
I'm getting the idea I should be posting in the tbi section??...

 

topdownsolutions sells a spring one step stronger that stock. Turbo City may as well.

High pressure springs came in later GM TBI units to allow 32 lbs FP.

You cannot coil bind any spring. There needs to be some adjustment left at top.

Not sure if stock fuel pump can provide sufficient fuel beyond 12 lbs. I will guess it cannot. You wont know unless you run a gauge duct taped to windshield and have passanger monitor.

AE needs nearly as much fuel as WOT. It is just that duration of time on is much less.

 

Good to know about the spring! I just ordered one and I'm probably about to order an e2000 fuel pump.
I've modified my 299 with my own 28 pin socket and moates zif adapter. Read the 2732 and changed the spark table to one someone posted as being a stock vortec's table. Then I modified the whole fuel table and bumped it up 5%. It runs a little better but I can't get my aldl cable to work on it now to do any datalogging, which I believe is from me not burning the chip with an offset because winaldl still works with my 747. I'm going to offset the thing and go from there.
Oh yeah, before I read your response I also modified my fpr and maxed the adjustment out. It holds at 15 psi but my e8094 won't push much more than that I don't believe (max should be 17 psi), but I'm going to play around with tuning it until I get the new fp and spring.
Now I just need a deeper understanding of tuning than "main VE table" and "main spark table"... ha. Any reading suggestions?

 

The $99 datastream is different than the $42. You can log the $99 by using the 288 definition in WinALDL. Or use the $99 definition and TunerProRT.

 

Fast305, I just happened to figure that out one day when playing around with winaldl but that's great advice for others wanting to run 299's.
The HUGE problem I'm having now is that I've got both computers (I've got two 299's) flashing the SES light which means neither is reading the BIN I guess. Once I found out I was throwing a 51 error (prom error) on my modified 299, I tried putting the stock chip in and it was still throwing me the error. So I desoldered my makeshift 28 pin socket and soldered the moates 24 pin socket in and pressed the adapter in and zif socket into that. Still not working right. So I thought well maybe I've messed up my stock chip with my willem burner and been working with a bad stock bin. I put that chip in my unmodified 299 and didn't have a blinking SES so I figured it was fine. Read the chip from my unmodified 299 and compared it to my stock bin and it verified OK. But then I can't get either one of them to stop blinking the SES now (which I assume is synonymous with throwing a prom error 51 code).
I haven't done a thing to the unmodified 299 so I can't imagine why it's not reading the BIN. I've got the protector in place and it should be making good contact with the pins. I've pressed and wiggled and everything on the chip. Tried my other 2732 in it numerous times. I've always kept pin 1 (with the line on the chip) on pin 1 in the protector and on pin 1 on the socket because they're all labeled and the protector will only let you put it in one way... I'm lost. Should I be disconnecting power from the computer when I'm swapping chips out? I thought maybe once you set that code (51) it stays in there and the computer will keep blinking the SES until the code is cleared so I unplugged the computer and let it sit without power all night but that didn't fix anything. I can't get winaldl to work on either computer
On a more positive note, once I set my offset to 00F000, I did get the 355 to run incredibly well. So well that I found out my transmission was slipping around 5,000.. ha. The only reason I would have ever thought anything was wrong was because it would try to die at times when idling. Hooked up winaldl and found prom error. (In that vehicle I haven't wired up a check engine light yet, if I would have the thing would have undoubtedly been flashing and I would have known something was up before all of that).
I need some help needless to say...

 

Well, somehow I've messed up both my stock chips and one of my 27sf512s (27sf will erase most times, blank test hardly never and when it does blank test it won't burn and verify). I think I messed the two 2732's up in my willem programmer by not switching it over to PCB 3 when I read them. Anyway, I don't believe I have a good stock bin because I can't burn that bin onto a new chip without it blinking the SES. However, if I run the bin through tunerpro and then save it it works without any problems so I'm guessing the xdf must clean it up enough for the ecm to like it.
Long story short, I'm ordering some new chips and I've got my modified computer/socket working. This makes me rather happy.. Especially since I know my socket works and I haven't messed up my computers. Apparently I'm going to have two modified 299's too, which is fine with me.
Now. Back to learning how to tune..