'75 FI Throttle Linkage for GT

[tekenaar]

Didn't know whether this should go in the FI Fuel, Tips and Tricks or GT section, but since it's a mod specifically in a GT, that section won out. I've been getting numerous inquiries regarding throttle linkage recommendations for using the '75 Opel Bosch FI in a GT. So, rather than trying to describe it, here is my '73 GT's in a picture with text.

[rangerrick]

Otto

Thanks for the picture, answered my questions for sure! I've seen some of your pictures of your GT, Its just hard to see everything in your other post's. Like the air/cond. compressor and mounting the alternator on the right side, this explained why it looked like so much of a cleaner installation vs. the large GM compressor that everyone says "Gee it's bigger than the engine"!

Regards,
Rick

[tekenaar]

Forgot to mention, but this has been in this GT, untouched, since I converted it to FI . . . 1978!

Speaks well for taking time and doing it right the first time, don't you think?!!

[rangerrick]

Talked to Gil at OGTS today, and just about convinced to buy a used 2.2 with fuel injection for $2000. I located a computer box for $50 on here, I'm still in need of the fuel pump & regulator, duel relays and maybe Air Fuel Meter. Gil said the European Fuel Injection was much better and the 75 will probably leave me stranded on the road some day! So maybe I'll sell the 75 fuel injection parts I have, rather than try to get what I need from Opels Unreachable (Unlimited).

All in all, probably just a better deal all the way around than to rebuild the 1.9 to a 2.0 since I have an automatic trans. and need the torque.

Regards,
Rick

[tekenaar]

Originally Posted by rangerrick Talked to Gil at OGTS today, and just about convinced to buy a used 2.2 with fuel injection for $2000. I located a computer box for $50 on here, I'm still in need of the fuel pump & regulator, duel relays and maybe Air Fuel Meter. Gil said the European Fuel Injection was much better and the 75 will probably leave me stranded on the road some day! So maybe I'll sell the 75 fuel injection parts I have, rather than try to get what I need from Opels Unreachable (Unlimited). All in all, probably just a better deal all the way around than to rebuild the 1.9 to a 2.0 since I have an automatic trans. and need the torque. Regards, Rick

MY experience would definitely belie that! I CAN tell you that my reliability is due in part to the EFI and in part to the Perlux (Pertronix) ignition trigger! Have NEVER been stranded or had ANY on-road problems with this GT, even with flat tops and an Isky/Norris valve train.

[rangerrick]

Otto

To begin with, thank you for your post! I wasn't trying to knock your car with the 75 Manta F/I, just stating my position with the parts I have on hand and the cost of putting together a complete system for my needs! Gils price of $2000 for a complete running 2.2 with modern fuel injection is hard to beat! And at $45 hr. labor @12hrs that would totally take care of my needs for less than $3000.00. Besides the 75 fuel injection was one of the first mass produced Opel systems wasn't it? Once again I have an automatic trans. and can use the low end torque, not like I'm bolting a 5 speed up behind it. And maybe someone here could use my 75 fuel rail assembly for a Megassquirt build-up! So how about it, can anyone use a 75 F/I throttle body minus the electronics?

[kwilford]

Originally Posted by tekenaar Didn't know whether this should go in the FI Fuel, Tips and Tricks or GT section, but since it's a mod specifically in a GT, that section won out.

I reserve the GT forum for threads that are specifically GT, so normally I would also place it there. But this is more of a FI thread, so I moved it there.

[simplemind7]

Originally Posted by rangerrick So how about it, can anyone use a 75 F/I throttle body minus the electronics?

hmm, got a price in mind? i just got some opel funds

[rangerrick]

Brendan

Hello from Northern California!!! I tried to post another picture of the assembly I have, but the forum wouldn't let me post a previously posted picture. I have a picture in one of my posts, so just go to my profile and it's there.

David27 has a computer box for this for $50, that's all he has spare to sell.
Could cost $60 for the duel relays and another $60 for the air fuel meter (not sure mine doesn't work) but cover is missing??? then $150 for electric fuel pump and regulator and installing a return line to the tank! This is so far what I've found out after much reading and emails....

This, or any Opel fuel injection rail is needed for a Megasquirt and or Lenk Tuning upgrade from what my research has learned me. I was told the 75 Manta stock system was good up to 100 ponies, for what it's worth!
So I would part with my incomplete system, After all is said I can sell you what I have for ($175.00), no frills shipping to Canada if you wish! I can and will take more pictures if you'd like ect....so please don't be afraid to ask. I am still learning here myself!!!

Sorry, typed $75 when I meant $175. It was the end of a day dealing with numbers trying to decide on what way to go rebuilding the GT and adding fuel injection. I figure the fuel rail assembly with airbox and nozzles to be worth about $150+$25-$28 for shipping, as it's heavy and bulky.

Regards,
Rick

The Military teaches, "There's no such thing as a stupid question"!!!

Sincerely,
Rick

[soybean]

Rangerrick, before you give up on the FI you have, take a look at this on Ebay Item number: 7953631069. It came up on the Classisic Opel site today. It might be of some help to you and you'd end up with some spare parts. Jarrell

[tekenaar]

Originally Posted by rangerrick Otto To begin with, thank you for your post! I wasn't trying to knock your car with the 75 Manta F/I, just stating my position with the parts I have on hand and the cost of putting together a complete system for my needs! Gils price of $2000 for a complete running 2.2 with modern fuel injection is hard to beat! And at $45 hr. labor @12hrs that would totally take care of my needs for less than $3000.00. Besides the 75 fuel injection was one of the first mass produced Opel systems wasn't it? Once again I have an automatic trans. and can use the low end torque, not like I'm bolting a 5 speed up behind it. And maybe someone here could use my 75 fuel rail assembly for a Megassquirt build-up! So how about it, can anyone use a 75 F/I throttle body minus the electronics?

In NO WAY did I take it as such. I was just trying to make the point that ANY EFI system, once set up, is DEAD RELIABLE! I agree with later posts to "not give up on what you already have" too soon, is all.

I freely admit to being a "dyed-in-the-wool" tinkerer and fabricator though, so that may have had something to do with it.

[davegt27]

Otto what is needed is a step by step of how to install FI on a GT
hint hint

I nominate Otto for the Job do I hear a second.

putting FI on a GT is pretty easy once you get all the Parts and a wire diagram

I installed mine with parts i add lying around. the Only welding i did was to make a cold air setup (back before that had such a thing) on the front of the AFM

then i found out later if you got the adapter off a Fiat X19 with FI that part would bolt up to the front of the Opel AFM (Renault 1.7/2.0 also)

lot of little tips i could tell you in about 5 min but to write it would make a long post

Davegt27

oh forgot Starter solenoid the FI pwr comes from the 2 prong type
And the Dist is different for the FI cars.

dasgtnut27@aol.com

[Killer Texas GT]

Otto will get that chance before the year is out, as the wifes GT will have the FI,1.9 flattops/Autotranny/ 318 rear end. So we will take pictures as it progresses right Otto (me body - you drive train) Hint .
rk

[soybean]

When I swapped mine over in 88, I pulled the donor car in behind the recipient and took parts off one at a time using a Polaroid camera to take pictures of what went where. I like Killer Texas Gt, would be interested in it as my Manta may be in too bad a shape to repair. Some parts may be fairly easy, just don't know about the tank connection for the return line yet. I also have a copy of the 75 Service manual supplement and the Workshop Manual for the L-Jetronic by Robert Bosh, if that will help. Jarrell

[rangerrick]

Originally Posted by davegt27 Otto what is needed is a step by step of how to install FI on a GT hint hint I nominate Otto for the Job do I hear a second. putting FI on a GT is pretty easy once you get all the Parts and a wire diagram I installed mine with parts i add lying around. the Only welding i did was to make a cold air setup (back before that had such a thing) on the front of the AFM then i found out later if you got the adapter off a Fiat X19 with FI that part would bolt up to the front of the Opel AFM (Renault 1.7/2.0 also) lot of little tips i could tell you in about 5 min but to write it would make a long post Davegt27 oh forgot Starter solenoid the FI pwr comes from the 2 prong type And the Dist is different for the FI cars. dasgtnut27@aol.com

I second that!!! I'm sure we'd all love to have Otto as a next door neighbor, he'd probably put the house up for sale and move within the first week!
There really isn't enough information on this site about fuel injection systems IMHO. I've learned a lot about what I don't have to complete my installaton from you David27

Rick

[davegt27]

Sorry rangerrick my private message thing is full so I cant send anymore private messages until I clear out some old ones.

On my FI conversion I remember I had a slight problem (maybe big) with the throttle cable. One time at the drag strip i had the hood up playing with the AFM Adj. so after each Adj. i would reach over a blip the throttle

Well, one time I reached over to blip the throttle and the damn thing went to WOT!

you see at WOT L-jet FI goes to full enrichment

man that motor took off Max RPM no load i jumped back about the time the motor changed tones i remembered to flip the throttle back toward idle

It only took a few seconds but man was that thing screaming.

later it happened again when i was getting ready to go to work, the motor pined the RPM needle to the stop just screaming

Took like 2 maybe 3 seconds to turn the key off.
that was scary

Davegt27

(It was a performance built 1.5 head in case anyone is wondering.)

[tekenaar]

Originally Posted by davegt27 Otto what is needed is a step by step of how to install FI on a GThint hint I nominate Otto for the Job do I hear a second. putting FI on a GT is pretty easy once you get all the Parts and a wire diagram I installed mine with parts i add lying around. the Only welding i did was to make a cold air setup (back before that had such a thing) on the front of the AFM then i found out later if you got the adapter off a Fiat X19 with FI that part would bolt up to the front of the Opel AFM (Renault 1.7/2.0 also) lot of little tips i could tell you in about 5 min but to write it would make a long post Davegt27 oh forgot Starter solenoid the FI pwr comes from the 2 prong type And the Dist is different for the FI cars. dasgtnut27@aol.com

I thought I had already responded to this! I look in the thread and my response is not there, what gives?

[tekenaar]

OK, just reloaded my FI Install thread again . . . hopefully it'll be here next time I check.

[rangerrick]

Otto

I think I can say from us all, thank you very much for taking the time to help us out with these questions!!! Your'e an unselfish person, a quaility I admire!!!

Sincerely,
Rick

[davegt27]

OK did some searching on the web found this.

http://www.ratwell.com/technical/DoubleRelay.html

with out reading it i would guess its going to say in a nut shell

any relay can be replaced with another relay that will do almost the same thing

the 2.0 FI Relay is a little different it has a feature that allows the fuel pump to prime the system for a few seconds
but i think the Renault alliance uses the same one 1.7/2.0

Just found some Bosch Remanufactured injectors for $26.96 each also.

oh i forgot i got a price of $48.78 from Napa pn FR100 for the dual relay

still checking to see if its the same as our dual relay

Davegt27

[rangerrick]

David

Thanks for the post! I'll get all the parts I need one way or another! You see I own two parts cars 70 & 72 GT's and the fuel rail I got was inside with a cache of other spare parts, obviously the PO got it from a wrecker and someone else beat him to the electronics.

I've got a query into Opels Unreachable, just maybe 5-6 weeks from now Todd will contact me. He has this stuff I'm sure as he's bought out every junk yard around and even bought JC Whitneys supply (if anyone was curious where that stuff went). I've never bought anything yet from him as it's quicker and easier to buy it here, or off eBay!!! Too bad OGTS doesn't carry much of this stuff anymore.

Regards,
Rick

[kwilford]

Originally Posted by davegt27 Just found some Bosch Remanufactured injectors for $26.96 each also.

Where from Dave?

[davegt27]

kwilford: I saw that they had a toll free number so I just called them. You may want to surf around there web site to see what they have.


http://fuelinjectorwhse.com/index.html?source=overture

I bought brand new injectors back in the day for like $36.

The p.n. number I gave them was Bosch p.n. 0 280 150 114 that's a second design injector and what I used to run in my GT.

would have to check around to find one that flowed more CC


Rick i just came back from my storage unit and i have an AFM and a 75 ECU

e-mail me and we can work out the details

dasgtnut27@aol.com

I bought a few things from Opels Unlimited not to big of a problem.

Davegt27

OH here is another link that might be useful (all the L-jet are pretty much the same)

http://www.texas912.org/912E%20Tech%...l%20Manual.pdf