20v ignition

[greenmac80]

wanting some extra info on how to take care of the dizzy prblemo in
a rwd conversion in the 20v.

i've heard that yager performance do a kit that allows you to use a stock ecu.
i've rang them and he said it splits the signal?

has anyone done something similar? or retro fitted a 4agze ingnition system?

[Chrisso]

Have a search for Sam_Q. He's got a guide/build thread and a fair bit of experience with 20valves in rwd config.

I don't know didly about rwd 20v's, but isn't the problem with the dissy that they hang of the back of the head? I would expect you rip them down so you've got a considerably shorter CAS out of it, much like you can do with a smallport dissy, and use the signals from that to run a dli type ignition system.

[greenmac80]

I don't know didly about rwd 20v's, but isn't the problem with the dissy that they hang of the back of the head? I would expect you rip them down so you've got a considerably shorter CAS out of it, much like you can do with a smallport dissy, and use the signals from that to run a dli type ignition system.

english please...
i don't know too much about efi ignition stuff.... do you still run standard ecu?

[bazzery]

Again I don't know too much about how to do it as I haven't done it myself, but the corolla is a 20V in rear wheel config. I think there is an issue with cooling stuff which you need to blank off or re-route. As for the stock ecu, again don't know much, we are running a Haltech in EFI config. Is there any reason you don't want to go this way?

[Sam_Q]

ok what you need is called a dli converter, use talking marks if you search for it like : "dli converter"

theres some info on here and some more in http://www.ae86drivingclub.com.au/board/

look at the link in my signiture for the cooling info, keep in mind I plan to rewite it soon if I get a moment.

Let us know if you want anything explained

[Chrisso]

english please...
i don't know too much about efi ignition stuff.... do you still run standard ecu?

CAS = crank angle sensor

Search for DLI post by ed_jza80.

Read articles on Toyota ignition systems - www.autoshop101.com

Read Sam's links - thanks for posting Sam!

Lastly, I'm not sure if you can run the standard ECU, but would assume that you can, but you might need to condition the signal if it requires one to go back in - like the older 16v 4ages did. You may also have issues with your tacho signal. I saw another thread about how to fix this not so long ago, so a quick search should yield the goods.

Chris

[skiddz]

either back a hole/recess in the firewall for the distributor and thermostat housing and use factroy computer or convert to DLI with aftermarket ecu and rearrange water piping with sams guide

[greenmac80]

Hmm i've thought of aftermarket but i don't know what i'd need to buy and from what i've seen ecu's are very expensive. Also i'm not too sure about the legalities in sa. i want to get the car engineered first and then perhaps get the aftermakety?
So the DLI kit seems to be the easiest way to go for now.

[Sam_Q]

noooo dont touch that firewall! besides heaters are good.

the DLI kit works well for me and I would recommend it.

[skiddz]

noooo dont touch that firewall! besides heaters are good

Soft! wheres your sense of adventure! i bashed the firewall and still have a heater, tis not pretty but it will do...


on another note do you know where i can get my hands on a rwd water pump backing plate? the thing that goes on the block?

[Chrisso]

Unless SA is out of step with the rest of the country there won't be any legality issues with running an aftermarket ecu. I still think you would be able to get away with DLI and the standard ECU.

The older ecus at least appear to use output from the dissy as a timing/tach signal for injection cycles. The ignitor is driven directly from the dissy/cas, and the ignitor provides a signal back to the ecu to let it know that the ignition sequence was successful. The ignitor, not the ecu, takes care of advance and dwell timing (ESA and VAST). Essentially this means that you should be able to get the same signals from the DLI setup to satisfy the stock ECU.

Chris

[Sam_Q]

I might be making a batch of those backing plates soon, PM me for more details

Chrisso: in vic you cant have an aftermarket ecu unless you have it epa tested ($2000 a go) and then have the ecu locked

[Gavatron]

And SA is incredibly out of step with the rest of the country.

[MRMOPARMAN]

id say the rest of aus is incredibly out of step with SA

[Chrisso]

Gotta love the law variations from state to state! I think I better go double check the QLD regs.