1987 Turbo IROC project.
04-05-2005, 05:03 PM
#151
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
04-05-2005, 05:45 PM
#152
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Car: Sexy
Engine: Stock
Transmission: Slipping
Originally posted by JoBy
We had already installed larger injectors and done modifications in the eprom when we started using E85. We just modified the injector constant when we started using E85.
We had already installed larger injectors and done modifications in the eprom when we started using E85. We just modified the injector constant when we started using E85.
04-05-2005, 05:48 PM
#153
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
You need about 30% more duty cycle with the same injector when running E85.
04-06-2005, 01:38 AM
#156
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Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Nice work!
Wonder what they will say at the "inspection" or is the car "moving goods" (swedish: flyttgods)?
/N.
Wonder what they will say at the "inspection" or is the car "moving goods" (swedish: flyttgods)?
/N.
04-06-2005, 02:22 AM
#157
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
It is leagal untill the end of October ( inspection from June to October) so it is a problem for next spring.
04-07-2005, 05:21 AM
#162
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
We are going to start it up on the 165 but probably convert to MegaSquirt after that.
06-08-2005, 08:08 AM
#163
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
The new engine is finally ready for installaton.
Solid monts.
Plenty of room for the oilpan.
Where is that supposed to go now?
Solid monts.
Plenty of room for the oilpan.
Where is that supposed to go now?
06-08-2005, 06:38 PM
#166
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
No, these are different heads. These have been worked on and were better heads to begin with.
06-27-2005, 03:58 AM
#169
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
It is not finished yet.
The turbo and headers are in place.
A new custom crank pulley is in place.
The downpipe is not finished.
The hydraulic lines to the power steering is not finished.
The pipe from intercooler to throttelbody is not finished.
Distributor cap anr coil has to be mounted.
and some other small things.
We are starting the engine om the old stock ECM to break-in the new cam. We are then installing a Megasquirt.
Some new pictures:
The turbo and headers are in place.
A new custom crank pulley is in place.
The downpipe is not finished.
The hydraulic lines to the power steering is not finished.
The pipe from intercooler to throttelbody is not finished.
Distributor cap anr coil has to be mounted.
and some other small things.
We are starting the engine om the old stock ECM to break-in the new cam. We are then installing a Megasquirt.
Some new pictures:
06-27-2005, 04:25 AM
#171
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Fans? .. 
.. oops! ... They are on the garage floor somewhere
We are installing pushing fans instead.
.. oops! ... They are on the garage floor somewhere We are installing pushing fans instead.
06-27-2005, 03:57 PM
#173
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
We want to run the EDIS ignition with waste spark coils and crank trigger. That is the main reson.
06-28-2005, 02:55 AM
#175
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
The HEI ignition was the only thing on the stock engine that did not like Ethanol in combination with boost. We started to have problems when we got closer to 15 psi boost at higher RPM. At 10psi to was fine. The problems got worse at higher RPM. Fredrik shifted the stock engine at 5000 RPM but the new one can go a lot higher. A waste spark ignition can keep full spark power at much higher RPM than a distributor system.
It is also easier to tune because you don't need an eprom programmer. I have never used a MegaSquirt before and I want to try it and see how I like it. We are going to install it using a short adapter cable to the stock harness, so we can go back to the stock ECM if we want to.
It is also easier to tune because you don't need an eprom programmer. I have never used a MegaSquirt before and I want to try it and see how I like it. We are going to install it using a short adapter cable to the stock harness, so we can go back to the stock ECM if we want to.
Last edited by JoBy; 06-28-2005 at 03:17 AM.
06-28-2005, 05:05 PM
#177
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Originally posted by Iroc323
It's looking sick man. Tell me what it runs when you finish it
It's looking sick man. Tell me what it runs when you finish it
06-30-2005, 05:44 PM
#178
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Update again.
Some new pictures:
And it starts
A video, 5 Mb
http://jobyteknik.homeip.net/fredrik...c454turbo.mpeg
As you see the hood closes too
Some new pictures:
And it starts
A video, 5 Mb
http://jobyteknik.homeip.net/fredrik...c454turbo.mpeg
As you see the hood closes too
07-01-2005, 01:49 AM
#182
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
It is running on E85 in that video.
The current chip is a bit lean with the 150 lbs/hr injectors
The current chip is a bit lean with the 150 lbs/hr injectors
07-18-2005, 03:17 AM
#186
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Yes, it is 4" close to the turbo and then down to 90mm (3.54 inch) around the framerail. The rest is 4".
The sound ... it sounds like a healthy big engine at idle. When he drives by it soudns more like a big semitruck because of the turbo.
The sound ... it sounds like a healthy big engine at idle. When he drives by it soudns more like a big semitruck because of the turbo.
Last edited by JoBy; 07-18-2005 at 07:54 PM.
07-18-2005, 07:52 PM
#187
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Car: 92 Formula 350
Engine: L98 with a T-76
Transmission: ArtCarr 700-R4
Axle/Gears: Bone stock 10bolt and 3.23's
Wow, that monster has to fly.
Last edited by TurboedTPI; 08-06-2005 at 03:59 PM.
07-18-2005, 09:55 PM
#188
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Car: 1988 Medium Orange Metallic IROC
Engine: 305 TPI
Transmission: 700R4 transgo shift kit
Axle/Gears: 4.10 in box lol
I want a turbo IRoCnice work, been watching the progress for some time now.
Drew
08-06-2005, 12:14 PM
#190
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Originally posted by DM91RS
With all this work to the IROC what's been going on with your Vette JOBY?
And........awsume job guys
With all this work to the IROC what's been going on with your Vette JOBY?
And........awsume job guys
We are almost ready to start the Camaro with the new MegaSquirt and EDIS dirstributorless ignition.
I have built a new garage so I have not had much time to work on the Corvette. I have installed a 4L80E with a TCI cotroller and a Haltech E6K.
Some pictures:
http://jobyteknik.homeip.net/pictures/garage/collection
http://jobyteknik.homeip.net/pictures/garage/2004-12-19
http://www.joby.se/corvette/mods/2004-12-26_4l80
http://www.joby.se/corvette/mods/2005-05-17_electrical
http://www.joby.se/corvette/mods/2005-05-28_Exhaust
08-07-2005, 05:07 PM
#192
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Some progress again.
Crank trigger wheel. The sensor is behind the water pump pulley.
EDIS-8 ignition module.
Two dual waste spark coils.
MegaSquirt and pigtail to stock ECM harness.
We had to re-wire the fuel pump relay. The stock ECM put 12V on the cable to engage the fuel pump. MegaSquirt grounds the wire.
Once we had that sorted out it started on the first try. It had a good idle from the start and the lambda was a bit rich but not too bad. Without any tuning exept for configuring engine size and injector size it was very driveable. It ran better than the with the stock ECM from the first start. Now the tuning can begin.
Crank trigger wheel. The sensor is behind the water pump pulley.
EDIS-8 ignition module.
Two dual waste spark coils.
MegaSquirt and pigtail to stock ECM harness.
We had to re-wire the fuel pump relay. The stock ECM put 12V on the cable to engage the fuel pump. MegaSquirt grounds the wire.
Once we had that sorted out it started on the first try. It had a good idle from the start and the lambda was a bit rich but not too bad. Without any tuning exept for configuring engine size and injector size it was very driveable. It ran better than the with the stock ECM from the first start. Now the tuning can begin.
08-07-2005, 09:00 PM
#193
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
I see you are using the internal Megasquirt MAP sensor. There is some interesting reading in the DIY PROM board with a thread called "map sensors". It applies to how you have yours set up.
08-08-2005, 01:02 AM
#195
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Originally posted by junkcltr
I see you are using the internal Megasquirt MAP sensor. There is some interesting reading in the DIY PROM board with a thread called "map sensors". It applies to how you have yours set up.
I see you are using the internal Megasquirt MAP sensor. There is some interesting reading in the DIY PROM board with a thread called "map sensors". It applies to how you have yours set up.
https://www.thirdgen.org/techbb2/sho...hreadid=312429
What are you getting at?
08-08-2005, 01:03 AM
#196
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Originally posted by 83 Crossfire TA
What did you use for the ecu plug?
What did you use for the ecu plug?
08-08-2005, 09:30 AM
#197
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Are you running the MS-II with the EDIS? Where did you buy the 36-1 tooth crank wheel and pick-up sensor? How is the quality of it?
08-08-2005, 09:57 AM
#198
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
It is the "MegasquirtnSpark-extra".
http://megasquirt.sourceforge.net/extra/
Prebuilt and loaded with the latest 024s9 firmware.
We bought it from RS Autosport.
http://www.rs-autosport.com/
We bought the EDIS system from Boost Engineering. All parts are used.
http://home.earthlink.net/~beanbooge...t_engineering/
The MegaSquirt is not weather proof so it should not be mounted under the hood. The internal MAP sensor will be lower than the plenum.
http://megasquirt.sourceforge.net/extra/
Prebuilt and loaded with the latest 024s9 firmware.
We bought it from RS Autosport.
http://www.rs-autosport.com/
We bought the EDIS system from Boost Engineering. All parts are used.
http://home.earthlink.net/~beanbooge...t_engineering/
The MegaSquirt is not weather proof so it should not be mounted under the hood. The internal MAP sensor will be lower than the plenum.
08-08-2005, 10:05 AM
#199
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Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
You can also use an automotive OEM map sensor with the Megasquirt. The MS-II set up page talks about it. You send the MS the OEM signal instead of the onboard MAP sensor and adjust the voltage using the MS Tuning software.
I was thinking of using a MS-II someday but never really liked the MAP sensor being on board because it acts as a water storage tank (think water injection). It is a nice setup because it is simply to use an OEM MAP sensor instead.
I am not saying it is bad to have it on the circuit board. Just something to think about if things don't "seem right" while tuning.
I was thinking of using a MS-II someday but never really liked the MAP sensor being on board because it acts as a water storage tank (think water injection). It is a nice setup because it is simply to use an OEM MAP sensor instead.
I am not saying it is bad to have it on the circuit board. Just something to think about if things don't "seem right" while tuning.
08-08-2005, 12:22 PM
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Car: 89 Camaro IROC-Z
Engine: Intercooled Twin Turbo LQ4
Transmission: Tremec TKO 600
Originally posted by JoBy
Some progress again.
Crank trigger wheel. The sensor is behind the water pump pulley.
Some progress again.
Crank trigger wheel. The sensor is behind the water pump pulley.
I love seeing the Mega-Squirt fuel control with EDIS ignition. Seems like a very powerful and reliable set-up, and I am planning to use it for at least one of my future projects, and if that goes well, probably my TT IROC-Z.
How did you get your trigger wheel centered on the balancer/crank pulley? Do you have any pics of the sensor mounting?