Kudos to TPIGUY!

[Veepster]

just a note to acknowledge TPIGUY with his inspiration and dedication to his EFI idea. Is it a good idea? will it work? not for me to say. but I admire his commitment and excitement for EFI! imagine if the world was fueled by that kind of energy? We would have a sneak peek at the glorious world described in the good book(also known as the Bible)!

Peace...................BartG

------------------
Peace.............BartG

78 Chero
360 2v, 400 QT with low
almost drivable:
4" skyjacker
33x12.50 BFG KO's
Thorley headers, 3" exhaust
Infiniti power leather seats

[TPIGUY]

<BLOCKQUOTE>quote:</font><HR>Originally posted by Veepster:
just a note to acknowledge TPIGUY with his inspiration and dedication to his EFI idea. Is it a good idea? will it work? not for me to say. but I admire his commitment and excitement for EFI! imagine if the world was fueled by that kind of energy? We would have a sneak peek at the glorious world described in the good book(also known as the Bible)!
<HR></BLOCKQUOTE>

Thanks Veepster. I was beginning to think no one was reading my posts anymore. I am still working out the kinks in my "idea". But apparently my "idea" is common knowledge on the DIY-EFI forum. I have joined that forum and am asking some really technical stuff. Its a great source of inside knowledge like the fact that I just spent $200 for some '90 Corvette fuel injectors only to find out that that year's design was inferior to years before them. Oh well, Ebay strikes again. But you don't learn unless you try, right. Anyway, some recent observations about FI. It is generally stated in most sites I visit that ported FI gives about 30% more HP and torque than throttle body FI. And based on my personal experience with both I can say that both are far superior to a carburetor. However, after replacing 8 fuel injectors for the 4th time this past week, I can definitely say that throttle body is easier to work on, esp., with Chev TPI. If I had a custom ported system, you can bet I would design it for easy and quick injector replacement. Howell makes a Jeep 258 CI GM based FI system for $995 using the stock distributor, so I don't know how this can be considered an "unproven" system. The real engineering challenge is getting the price down to where the average FSJ owner would be willing to spend $700-$900 for the superb drivability, economy, and emissions control that driving a vehicle at a 14.7/1 air fuel ratio gives you. The real key to making any vehicle work with fuel injection though is the quality of the program in the EPROM. So thats where I will be concentrating my future research. In the meantime, I will buy the chips from Howell, Turbocity, or Haltech.

[Veepster]

keep at it! if nothing else it is fun!

if you need it, I have a list(found it on the net somewhere) that will give you the types and sizes of all fuel injector used in production cars......

I personally use RC Engineering 50lb(disc type) injectors in my ride. I know, I know a lot of people don't like the disc type, but for my use the spray pattern is better in the disc type.
From my experience it is not worth using used injectors, but if you ARE going to use used injectors have them flowed and cleaned and tested before using them.....that is where the price starts creeping up($25 each to clean and test)

I know your pain when it comes to injector replacement, my pics will be up soon on the net and I will show you my setup

good luck and keep us informed!.....

Peace...............BartG

------------------
Peace.............BartG

78 Chero
360 2v, 400 QT with low
almost drivable:
4" skyjacker
33x12.50 BFG KO's
Thorley headers, 3" exhaust
Infiniti power leather seats

[TPIGUY]

Veepster,

I wish you had told me about those disc injectors. Apparently, the '90 Corvette ones are not that good. My engine runs ok at cruise, but its not smooth at idle anymore. According to www.TPIS.com, (http://www.TPIS.com,) the discs were a bad design and they use only Bosch units. Oh well, now I know.

Anyway, the reason I am writing this post is to let you all know; THE GM IGNITION MODULE WORKS LIKE A CHARM with the stock AMC distributor. You won't believe how easy it was to install the GM module to run my GW. I have PICs on my ftp site for all to see. All I did was take apart the distributor (see more below) and remove the centrifugal weights in the distributor housing. I left the springs in there to lock the ignition trigger wheel to the distributor shaft. Then I removed the stock AMC ignition module and replaced it with the GM module by just butt splicing the wires. It works perfect. I drove the cruck for 30 miles and nothing went wrong at all. From here, it's smooth sailing. As for someone else removing the weights themselves, we have a problem. I had to use a makeshift gear puller to get the distributor trigger wheel off. It won't come off by pulling on it. And if you try to pry it off with a screwdriver blade, it could break. So it looks like I may have to arrange a distributor exchange with fuel injection purchasers. I send you one of my modified distributors and charge a deposit, and when you return your distributor to me, I refund the deposit. Would this be a problem guys? Of course, on second thought, I may just include a cheap little homemade gear puller for everyone to keep. Oh well, happy viewing, and TRSSH, one down, one to go. All thats left is to find an inexpensive throttle body. By the way Veepster, another plus that TBI has over port FI is that there are only two injectors to replace instead of 8. Lot of cost savings there. And I'm looking into whether all TBI injectors are from the same source and are therefore a universal fit into anyones TBI.
One last thing, is everyone's GW igniton module mounted on the drivers side fender under the hood? It will be important to know when I have to build a harness since the distributor connector is over there with this mod.

http://members.aol.com/weg1192/gm1.jpg

http://members.aol.com/weg1192/gm2.jpg

http://members.aol.com/weg1192/gm3.jpg