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D troop 3/5 CAV ,162 AHC
 
afterburn 549's Avatar
 
Join Date: Jul 2003
Location: Army, Retired
Posts: 12,227
1977 CIS and turbo ..

b4 I bolt on a whole 930 sys would like to try using the stock CIS as many have. The Q. what dose one do with the vacuum lines????..as under boost they are experiencing a whole diff world.
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Old 11-23-2006, 10:56 AM
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beepbeep's Avatar
 
Join Date: Jun 2001
Location: Sweden
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Which vacuum lines? The ones that go to WUR? You can put one-way valve on them but OEM 3.0 CIS will bottom out quickly when you start fiddling with boost.
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Old 11-23-2006, 02:05 PM
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D troop 3/5 CAV ,162 AHC
 
afterburn 549's Avatar
 
Join Date: Jul 2003
Location: Army, Retired
Posts: 12,227
well I am not going for a lot of boost ( slippery slope i know ) but as far as the wur a one way valve will work ??
I have been told that a standard CIS will support 300 hp....I for certain do not know its limits w.o. it having some mods
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Old 11-23-2006, 04:15 PM
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typ 911
 
Bryan Beaumont's Avatar
 
Join Date: Aug 2005
Location: Palm Desert, CA
Posts: 264
George,

Just do it!!! Enough debating about it. Time to turbo it. Do not
worry about your CIS and what it can or cannot do. As long as your
fuel pump, injectors, and spark plugs are firing, you are good to go.
No joke. I took my factory WUR and tossed it, and did ZERO mods to my
fuel head and then installed a DigiWUR from Chris at TurboKraft and
am making 349 RWHP at 1 Bar (thats 400 @ the crank) with
a K-27-7200 from a 3 ltr. (I do have twin plug heads) It runs as
FAT (rich) as I want with adjustment as easy a a quick input on a
Palm Pilot. Many people speak of the need to modify the fuel head,
but we just did not experience what everyone spoke of with regards
to lean numbers as RPM increased. The Dyno tuning really was
crucial in our setup of our A/F numbers, and Chris Carroll now has
all of these numbers available for any future projects. In fact we
have damn near EFI level adjustment from CIS and expect to see
400 RWHP or 456 at the crank with a ball bearing Garrett GT-30R
installed. Should have it installed and dyno'ed by Feb. '07, keep you
posted.


Bryan
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Old 11-23-2006, 04:54 PM
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D troop 3/5 CAV ,162 AHC
 
afterburn 549's Avatar
 
Join Date: Jul 2003
Location: Army, Retired
Posts: 12,227
thanks for the vote of confidence Bryan.
You doing 1 bar with what engine cofiguration ? Mine is twin plugged and 8.5 C/R...not sure about the wur if it is needed at all.. tell me more about yours, this getting more exciting than I can almost stand !! I have been on the fence for so long
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Old 11-23-2006, 05:35 PM
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typ 911
 
Bryan Beaumont's Avatar
 
Join Date: Aug 2005
Location: Palm Desert, CA
Posts: 264
I am running Mahle 95 mm, factory 935 7.5-1 p/c's with SC cams, 38 in. 38 ex. ports, ti 935 rod bolts, Supertec head studs, GHL headers, Magnaflow muffler, Supertec twin plug dist., custom intercooler and TurboKraft Digital WUR. 3 liter 349 RWHP @ 1 Bar.
For detailed info on the digital WUR in my car contact Chris at TurboKraft.
info@turbokraft.com.
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'74 911-Not Stock...
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Old 11-23-2006, 06:10 PM
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D troop 3/5 CAV ,162 AHC
 
afterburn 549's Avatar
 
Join Date: Jul 2003
Location: Army, Retired
Posts: 12,227
looks like a well sorted sys !! congrats !!
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Old 11-23-2006, 06:53 PM
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