Alright,
I'm interested in some cold hard data here! I would like an engine managment system to replace the good ol' L-Jet system in my GTV-6 (I use the term "good" loosely). I know most of my options or I think I do.
Autronic
Electromotive TEC II/III
Haltech F1
MegaSquirt
Motronic?
Now can I get a price comparasin between the one's available vs. the time to install (or ease of install)? I know that Peter is a MS GURU, but i'm not sure that I'm willing to spend the time to build the system and perform a self-install. I'm lucky enough to be able to use my dinner fork everynight, the idea of me with a soildering iron or anything above crazy glue terrifies me! (Actually, i'm lazy, but thats another discussion.)
I am sure there is no shortage of Ideas on this. Please let me know what everyones experiences are with the system!
Thanks guys!
Rob
'84 GTV-6
-
Greg Gordon
- Verde
- Posts: 1552
- Joined: Mon Nov 29, 2004 7:06 pm
-
junglejustice
- Verde
- Posts: 624
- Joined: Fri Nov 26, 2004 1:19 am
- Location: Granolaville, WA
Hey Rob,
Well, the GoTech from South Africa is another really good option omitted from your original list (assuming that you are open to other ideas...)
Any way; they’re very simple and highly effective. I have driven several cars with this system (including some twin turbo cars!) You can run naturally aspirated options with MAP, TPS etc. Our two 3.7 litre 24 valvers run GoTechs and I just bought one to install on my stock Verde as well (maybe even this weekend if I can just find the time to do it!)
Each box comes with a COMPLETE wiring harness (that means Alfa connectors for your engine - injectors, temp sensor, t-position etc...) You get a CD to load on your laptop to change the fuel curve for fine tuning and the box comes already loaded with a starting map for your 12 valve.
One key aspect is that this system controls BOTH spark AND fuel. With it, you drop the restrictive stock AFM, accordion hose ect and you end up with a nice straight open intake-run from say a K&N type air filter or a cold-air intake somewhere down upfront, all of the way to your stock throttle body! (Part of the GoTech wiring harness includes an air temperature sensor that becomes the only piece installed along that run.
Greg Gordon sells some nice intake plumbing, filter and hardware to make this happen as a virtual bolt-on.
I have an extra unit here in Seattle that I brought back with me from South Africa on my last trip… I can have it in your hands within 24 hours for 600 USD. Email me at john@reginaceleste.com or call me at 425.941.4747.
Well, the GoTech from South Africa is another really good option omitted from your original list (assuming that you are open to other ideas...)
Any way; they’re very simple and highly effective. I have driven several cars with this system (including some twin turbo cars!) You can run naturally aspirated options with MAP, TPS etc. Our two 3.7 litre 24 valvers run GoTechs and I just bought one to install on my stock Verde as well (maybe even this weekend if I can just find the time to do it!)
Each box comes with a COMPLETE wiring harness (that means Alfa connectors for your engine - injectors, temp sensor, t-position etc...) You get a CD to load on your laptop to change the fuel curve for fine tuning and the box comes already loaded with a starting map for your 12 valve.
One key aspect is that this system controls BOTH spark AND fuel. With it, you drop the restrictive stock AFM, accordion hose ect and you end up with a nice straight open intake-run from say a K&N type air filter or a cold-air intake somewhere down upfront, all of the way to your stock throttle body! (Part of the GoTech wiring harness includes an air temperature sensor that becomes the only piece installed along that run.
Greg Gordon sells some nice intake plumbing, filter and hardware to make this happen as a virtual bolt-on.
I have an extra unit here in Seattle that I brought back with me from South Africa on my last trip… I can have it in your hands within 24 hours for 600 USD. Email me at john@reginaceleste.com or call me at 425.941.4747.
...to Alfa, or not to Alfa? That is the question...
-
junglejustice
- Verde
- Posts: 624
- Joined: Fri Nov 26, 2004 1:19 am
- Location: Granolaville, WA
"Will all systems require the stock airbox to be removed?"
Rob, it's more a question of "can I find a system that enables me to remove the stock AFM and airbox....?" I hate that thing. It was good for it's time, but now it is time for it to go. (The box has merit for cool air…)
As far as mapping - You can do it yourself with a good air/fuel-ratio meter that has the ability to record data... (EG Innovate Motorsports records 44 minutes of data which is then downloaded and you use the data to build your map off of it....
Any dyno shop can also do this for you in about 2 hours of dyno time.
Rob, it's more a question of "can I find a system that enables me to remove the stock AFM and airbox....?" I hate that thing. It was good for it's time, but now it is time for it to go. (The box has merit for cool air…)
As far as mapping - You can do it yourself with a good air/fuel-ratio meter that has the ability to record data... (EG Innovate Motorsports records 44 minutes of data which is then downloaded and you use the data to build your map off of it....
Any dyno shop can also do this for you in about 2 hours of dyno time.
...to Alfa, or not to Alfa? That is the question...
-
Greg Gordon
- Verde
- Posts: 1552
- Joined: Mon Nov 29, 2004 7:06 pm
They do not all require removal of the stock air box. In fact I make an intake system that connects the plenum to the stock air box. However you will get more power with a cone filter, go to any import drag racing event and you will see every winning car is running a cone filter. There is a 1000 rwhp Supra in my town that was the fastest Supra in the world at one time (it's the powerhouse racing MVP Motorsports Supra) , it uses an underhood cone filter.
Greg Gordon www.oldebottles.com/italiancars.htm
Greg Gordon www.oldebottles.com/italiancars.htm
-
junglejustice
- Verde
- Posts: 624
- Joined: Fri Nov 26, 2004 1:19 am
- Location: Granolaville, WA
You pretty much have it all.... You are going to reuse your stock injectors. Harness has all the wires you need (you just need to jump to the fuel pump as you loose that when you disconnect the stock ECU...)
The only other variable is the dyno time. I just went ahead and bought the air-fuel ratio meter (they run around 350-375 bucks) because I am going to use them on some of my other cars....
You will be amazed at how out of whack this measure gets on older systems - so a good investment. (Useless if you can't change the parameters though and that's where the GoTech's programmability comes in... (The harness includes a laptop cable to the GoTech box...)
Otherwise, the ones that I watched Domingo and Dawie setup took anywhere from 40 minutes to 2 hours with about half of that in actual dyno time.
I think that far less than 1,000 bucks gets rid of the L-Jet & increases your power, smoothness and efficiency etc.
The only other variable is the dyno time. I just went ahead and bought the air-fuel ratio meter (they run around 350-375 bucks) because I am going to use them on some of my other cars....
You will be amazed at how out of whack this measure gets on older systems - so a good investment. (Useless if you can't change the parameters though and that's where the GoTech's programmability comes in... (The harness includes a laptop cable to the GoTech box...)
Otherwise, the ones that I watched Domingo and Dawie setup took anywhere from 40 minutes to 2 hours with about half of that in actual dyno time.
I think that far less than 1,000 bucks gets rid of the L-Jet & increases your power, smoothness and efficiency etc.
...to Alfa, or not to Alfa? That is the question...