LA964RS

For the guys w/twin plug set up....what do you use for electrics? Electromotive or what? Obviously, no room for a 2x distributor.

Thanks,
R

Acropora

993 na distributor, two crane hi6 ignitions, andial electronics from steve seiner, plug wires from some guys who builds them here at rennlist. oh, and your gonna need to modify some of the sheet metal and may some exhaust parts, had that done by protomotive.

911/Q45

Stock NA ignition parts and wires, FVD ECU, cut and weld notch in heat system to clear distributors.

Jussi

I bought my parts from Turbokraft. 993 NA distributor(used) and signal splitter were main parts. Then headworks (double spark holes) done at Mode Inc.
ECU was reprogrammed but that TS conversion didn't do any difference for normal ECU programming. That just makes possible to use less advance (for same power target) and thus increase safety marginal for possible heat problems.
Remember to weld heads at same and do proper flame ring grooves to cylinders.

LA964RS

Do you need to reprogram ECU?

Jussi

It is better to reprogram ECU because TS version has more efficient fuel burning phase..
so if you use stock timing, it causes more heat but it also gives then more power..
But if you change also other parts at same, like turbos, cams, etc, reprogramming is must. And when you get proper ECU tuning on dyno, then you can get best available tuning for your combination - so I don't ever recommend aftermarket ECUs for that purpose because every motor/tuning packet is unique and to get 110% off from that, you always need unique ECU programming.

LA964RS

What's "TS version"??? You mean the twin plug version?

So if I go twin plug, I need to go back to my tuner..Kevin @UMW and ask him to do another ECU?

Jussi

TS=TwinSpark = twin plug

Yes, you need a new ECU program version what is tested and purposed to use in your case. Maybe Kevin has done that kind of chip which is for similar specs than your combination. Then that is ok but if you have possibility to visit him with your car when you have all mods done, then it will be even better.

Jean

LA964RS

It is not an option I am afraid, you need to reprogram your engine/ECU on a dyno if you are after proper results. I use stock ignition parts for my twin plug conversion.

LA964RS

Jean...you use 993 na dizzy and then a splitter...or do you run a 12 plug dizzy? I know your engine is pretty trick stuff....also who built it again?...Todd? or Andial?....

Jean

"Dizzy"? not sure what it means? I have a 993 N/A dual distributor. This is the same setup as most use I believe including Andial and RS ( mine is Proto). I have a very basic twin OEM coil ignition setup and don't seem to need more than that I guess.

Stealth 993

There is a twin distributor on eBay right now for $80.

I got all the twin plug stuff, just need the 2 turbo's!

LA964RS

I don't see how the twin distributor "fits"....Looks like it'd be too tight at the turbo tube. Anyone have pics?

LA964RS

Any of you guys have some pics of a twin distributor for twin plugging on TT engine? Like I said above, I can't image how it fits in that space...

Jussi

That is not even difficult.. see picture :

There are much more complicated mods also available for your 993TT if you prefer..