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Reiver
Join Date: Nov 2011
Posts: 57,399
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What to do when CIS works perfectly?
I've had two CIS '83 SC motors...one a 930-16 with 230k miles that ran perfectly and now a 930-10 that runs perfectly...and I mean perfectly as I can monitor my AFR continuously.
I'd like a fI throttle body set up tho to clean up the bay and for the response..... It is damned hard to mess with something that works.... Like a Dear Abby huh.
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De Oppresso Liber Strength and Honor 5th Legion |
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10-20-2017, 10:47 AM
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E-85 sippin drunk
Join Date: Jan 2002
Location: Warner Robins, GA
Posts: 1,554
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uh... play the lottery??!!! LOL
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Brad...930 gt-1 racecar, increased displacement to 3.6L, JB racing Cylinders, JE 8 to1 pistons, stroked crank, Carrillo rods, extrudehoned 3.2L intake, full bay Bell I/C, GT-2 EVO cams, Rarly8 headers, GTX-3584RS turbo, twin plug, P&P heads, Link G4 EFi system, G-50/50 with LTD slip and oil squirters/oil cooler, zork tube, full race coilover system, with carbon fiber body, full cage, E-85 sippin drunk |
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10-20-2017, 10:48 AM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Wish mine worked that well...
Sent from my iPhone using Tapatalk Pro
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 10:55 AM
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Registered
Join Date: Feb 2012
Posts: 246
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What to do when CIS works perfectly?
Is this what you had in mind?
 It's real expensive but FUN, and it gives a "spicy" engine  Sent from my iPhone using Tapatalk Last edited by Litle brother; 10-20-2017 at 12:51 PM.. |
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10-20-2017, 10:59 AM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Wish mine worked that well...
Sent from my iPhone using Tapatalk Pro
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 11:00 AM
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Reiver
Join Date: Nov 2011
Posts: 57,399
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Quote:
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De Oppresso Liber Strength and Honor 5th Legion |
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10-20-2017, 02:01 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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With that setup, don't waste your time and money on 964 cams!!! ITBs open up your possibilities to REAL cams.
Sent from my iPhone using Tapatalk Pro
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 02:03 PM
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Reiver
Join Date: Nov 2011
Posts: 57,399
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Quote:
I know ITB's will work more efficiently for performance and really cleans up the bay....it is just damn hard to mess with a nicely working unit.
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De Oppresso Liber Strength and Honor 5th Legion |
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10-20-2017, 02:04 PM
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Reiver
Join Date: Nov 2011
Posts: 57,399
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Quote:
930-10 w/SSI's dansk pea shooter...
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De Oppresso Liber Strength and Honor 5th Legion |
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10-20-2017, 02:06 PM
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Registered
Join Date: Jun 2011
Location: Hudson, Ohio
Posts: 1,433
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Quote:
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Northeast Ohio 1987 Porsche 911 Targa 1966 VW Beetle, 6V |
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10-20-2017, 02:23 PM
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Registered
Join Date: Feb 2012
Posts: 246
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What to do when CIS works perfectly?
Quote:
From what I have heard the 993 Sport cam is the hottest one one can use with the original pistons. Any hotter one must go for an RSR type piston. I have currently a 120/104 WEBCAM cam with 5.2mm lift at overlap at TDC in my 3.2 Short Stroke SC engine and had to use the Mahle Racing RSR pistons. Sent from my iPad using Tapatalk |
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10-20-2017, 03:15 PM
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Registered
Join Date: Feb 2012
Posts: 246
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Quote:
Thanks  Sent from my iPad using Tapatalk |
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10-20-2017, 03:16 PM
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Registered
Join Date: Apr 2007
Location: NM
Posts: 335
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I would fall over dead!
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10-20-2017, 03:24 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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I run 993SS in my SC and 930. In the 930, they are a weapon of mass destruction. In the SC, they're "fun". I forgot about the pistons...yeah, you're stuck.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 03:33 PM
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Banned but not out, yet..
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My dear Kenik, lest us not forget you also have large ports whilst many of us must suffer in silence with the lessor. Not that we need to flaunt our more modest size.
Got a test ride in your auto and it was very inspired.
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An air cooled refrigerator. ‘Mein Teil’ |
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10-20-2017, 03:56 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Ricko Swavee, 993SS in the SC are on small ports. I sold the big port heads.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 03:58 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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9.8:1 CR Mahles don't hurt either. They clear the 993SS ok, but went with Ti retainers as insurance.
Sent from my iPhone using Tapatalk Pro
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 04:00 PM
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Banned but not out, yet..
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A wise move good sir, and dang nice performance from SPHs
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An air cooled refrigerator. ‘Mein Teil’ Last edited by RSBob; 10-20-2017 at 04:13 PM.. |
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10-20-2017, 04:02 PM
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Reiver
Join Date: Nov 2011
Posts: 57,399
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Quote:
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De Oppresso Liber Strength and Honor 5th Legion |
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10-20-2017, 04:15 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Missed it was a Euro, so yes, good compression. Win! IIRC, large port was 78-79 only. Did Euros keep large ports?
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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10-20-2017, 04:18 PM
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Igor
Estrous Express
The Green Piggy
