|
|
|
|
| Author |
|
|
Twins are more fun!
Join Date: Dec 2005
Posts: 639
|
Spark plug question
What kind of plugs are you guys running in your modded EFI'd street motors?
__________________
James Carrera TT (3.3, Protomotive MAP ECU, EFI, GT2 EVO CAMs, Twin Plugged, Twin Turbo's) |
||
01-27-2009, 01:26 PM
|
|
|
MiamiTurbo
Join Date: Aug 2004
Location: Miami
Posts: 425
|
Great Question
I asked my tech this today and he said use 930 spec plugs. Anyone care to chime in?
__________________
wanabe911 owner 1974 914 2156cc project 2005 Lotus Elise Original owner 2002 996TT Tip |
||
|
01-27-2009, 05:24 PM
|
|
|
Twins are more fun!
Join Date: Dec 2005
Posts: 639
|
They're too cold and expensive for street use... BTDT
__________________
James Carrera TT (3.3, Protomotive MAP ECU, EFI, GT2 EVO CAMs, Twin Plugged, Twin Turbo's) |
||
|
01-27-2009, 05:35 PM
|
|
|
Registered
|
NGK Iridiums, BPR8ES and DPR8EA (or something like that)
__________________
2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
||
|
01-27-2009, 05:45 PM
|
|
|
Smart quod bastardus
|
Are you tracking it or DE days.....this may make a difference to run a cooler plug than for street.
Good question.
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
||
|
01-28-2009, 10:30 AM
|
|
|
Twins are more fun!
Join Date: Dec 2005
Posts: 639
|
My understanding is if it's purely for street use, then a warmer plug is OK to use as it won't foul as quickly.
For track events, definitely use a 3 or 4 heat range. Just curious to know what range you guys are using on the street without fouling.
__________________
James Carrera TT (3.3, Protomotive MAP ECU, EFI, GT2 EVO CAMs, Twin Plugged, Twin Turbo's) |
||
|
01-29-2009, 01:34 PM
|
|
|
|
Registered
Join Date: Oct 2005
Location: Kihei, HI - Maui
Posts: 593
|
Quote:
- 1978 930 3.3 engine - twin-plugged, ported, polished & flowed heads - dual 6 plug EDIS ignition - 8:1 compression ratio - 964 cams - 50# injectors - K27-7200 turbo - B&B headers - Megasquirt II v3.0
__________________
07 Audi A4 2.0T Cabriolet - Black/Black (sold) 96 993 C2 Cabriolet - Arena Red/Tan (sold) 82 911SC - 993 Turbo Cab Trib - Speed Yellow/Black (sold) 58 DKW Universal - Baby Crap Yellow/Beige (sold) Last edited by mppickett; 01-29-2009 at 03:43 PM.. |
||
|
01-29-2009, 03:04 PM
|
|
1979 Porsche 930 3.4
Herman the German
