 Finally driving again!, Type IV CIS conversion |
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| dlee6204 |
 Jul 17 2011, 09:39 PM
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#1
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Howdy  Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956  |
I finally got to drive my 914 again! (IMG:style_emoticons/default/mueba.gif) (IMG:style_emoticons/default/biggrin.gif) Back in June I was having fits with the L-Jet system that was on my car so I decided it was time to tackle a project I was wanting to do for some time, a CIS conversion.
I retrofitted a CIS Basic system to my stock 1.8L engine using parts from various VWs and Mercedes and today I fired it up for the first time and was able to take it for a long drive. It felt AWESOME. Smooth reliable power all the way to redline. It has a nice growl to it too. (IMG:style_emoticons/default/evilgrin.gif) I'm quite impressed. I still have to make some small adjustments but at least now I can get back to driving the car daily and the best part, NO MORE JACKSTANDS! I'm going to drive the snot out of the car this week to get the system dialed in and hopefully next weekend I will take it for a day drive in the mountains. (IMG:style_emoticons/default/driving.gif) More details and pics to come later. The cat is happy too!  |
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| Dr Evil |
Jul 19 2011, 03:55 PM
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#2
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Send me your transmission! Group: Members Posts: 23,038 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region 
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There has been proof that CIS actually does fine with radical cams....I need to find where that was. I am putting CIS on my tweaked out corvair engine in the bus (IMG:style_emoticons/default/smile.gif) Already have it in the 914 on the 2.7 (stock).
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| ArtechnikA |
Jul 19 2011, 04:37 PM
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#3
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(Dr Evil @ Jul 19 2011, 05:55 PM)  There has been proof that CIS actually does fine with radical cams... Porsche ran CIS on the 934's because the FIA made 'em do it, and they ran just fine, but not with as much power as the Kugelfisher injection they could run in Group 5. They certainly didn't have 'street-car idle' either. I suspect they gave up a lot in fuel economy at idle and part-throttle - but no one much cares about those in a race car. QUOTE ...I am putting CIS on my tweaked out corvair engine in the bus (IMG:style_emoticons/default/smile.gif) this being the bus that weighs half as much as my 5,6-liter Titan but gets just as good mileage? Never did I say it couldn't be made to work. As Scotty says, it's a dirt-simple mechanical injection system, but it does have a few fundamental underlying principles, chief of which is that the instantaneous position of the metering plate is proportional to the fuel requirement at that moment. If the plate is fluttering (and it does have some hydraulic damping to it) that principle isn't true. 6-cylinder engines have pretty much continuous intake flow - 4's are a little choppier by their very nature. And yes, I ran a Techtonics 268º cam in the ur-GTI and it ran great. That was generally accepted as radical as you'd like in an emissions-rated street engine - and I think it might have given the cat a workout if I'd still had one... |
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Posts in this topic
dlee6204 Finally driving again! Jul 17 2011, 09:39 PM
rick 918-S :popcorn: I always thought CIS off a VW Rabbit wou... Jul 17 2011, 09:43 PM Prospectfarms :headbanger:
Great idea and congratulations. I... Jul 17 2011, 09:47 PM kg6dxn Were's all the pictures from the build? Jul 17 2011, 10:30 PM Vacca Rabite Information please!
Zach Jul 18 2011, 06:07 AM ripper911 Smokey wants more pictures!
http://www.914worl... Jul 18 2011, 06:24 AM BKLA CIS ='CALICO IS SLEEPING' ???
:) Jul 18 2011, 08:11 AM Jake Raby CIS works great on TIV engines.. I had the set up ... Jul 18 2011, 08:39 AM Cap'n Krusty CIS? Would that be "Cat In Situ"?
The ... Jul 18 2011, 08:51 AM
rwilner you guys are nuts...I don't let the cats on my... Jul 18 2011, 08:57 AM ripper911
you guys are nuts...I don't let the cats on m... Jul 18 2011, 01:09 PM montoya 73 2.0 I am working on the same thing except from what Ri... Jul 18 2011, 01:05 PM dlee6204 Okay here is a break down of everything I used.
... Jul 18 2011, 09:27 PM dlee6204 For the injectors I had to fab up some brackets a... Jul 18 2011, 09:29 PM dlee6204 And finally since I was completely new to anything... Jul 18 2011, 09:32 PM dlee6204 Oh and the cat is 18 years old and a HUGE 914 fan ... Jul 18 2011, 09:36 PM montoya 73 2.0 One of these Volvo 240 Aluminum Air Box Tray's... Jul 18 2011, 09:44 PM dlee6204
Yeah I need to do something about that. I had t... Jul 18 2011, 09:47 PM montoya 73 2.0 Jeffs914/6 was or is installing CIS on his 3.0.
V... Jul 18 2011, 09:53 PM ThinAir I was drooling over Dan & Jeff Dixon's CIS... Jul 18 2011, 10:37 PM dflesburg whats with the long pipe on the air box?
Why didn... Jul 19 2011, 07:28 AM dlee6204
Link saved! Thanks! The Rabbit I got m... Jul 19 2011, 08:30 AM dlee6204
The pipe goes from the Fuel Distributor/Airbox t... Jul 19 2011, 08:33 AM scotty b I would think CIS would also be great as the basic... Jul 19 2011, 01:15 PM ArtechnikA It's "basically" a mass-flow system ... Jul 19 2011, 01:29 PM Dr Evil
There has been proof that CIS actually does fine... Jul 19 2011, 06:04 PM ArtechnikA
...So, no need to arguetwasn't an argument. ... Jul 19 2011, 07:19 PM TargaToy Ok, Jake says it's a good system. He's th... Jul 19 2011, 08:10 PM scotty b
Ok, Jake says it's a good system. He's t... Jul 19 2011, 08:11 PM Vacca Rabite I have thought about CIS for my 2056, but have hel... Jul 19 2011, 08:28 PM scotty b
I have thought about CIS for my 2056, but have he... Jul 19 2011, 08:33 PM TargaToy Is this hard to integrate with a stock ECU? What ... Jul 19 2011, 08:43 PM dlee6204 I just thought I would post some links that I foun... Jul 19 2011, 09:21 PM Prospectfarms I'm not sure how that system would interface w... Jul 19 2011, 09:31 PM jcd914 I can't speak to the overlap limits with CIS (... Jul 20 2011, 01:47 AM Prospectfarms Thanks Jim, I value your "narrative of experi... Jul 20 2011, 06:56 AM Rex-n-effect My 81 Scirocco, daily driver, has 417,000 miles on... Jul 20 2011, 08:51 AM Rex-n-effect I have to take that back. I had to replace the Lam... Jul 20 2011, 09:01 AM Jake Raby Since the system is volume based it is imperative ... Jul 20 2011, 09:14 AM Vacca Rabite Jake is your carb cam (the one similar to the 494)... Jul 20 2011, 12:22 PM rohar
Jake is your carb cam (the one similar to the 494... Sep 2 2011, 09:56 PM Vacca Rabite
Jake is your carb cam (the one similar to the 49... Sep 3 2011, 05:15 PM 914_teener
[quote name='rohar' post='1533899' date='Sep 2 20... Sep 24 2013, 10:44 PM charliew Jakes probably under a boxter looking for a oil le... Jul 20 2011, 12:29 PM ChrisNPDrider
Jakes probably under a boxter looking for a oil l... Jul 21 2011, 08:57 AM scotty b
Jakes probably under a boxter looking for a oil ... Jul 21 2011, 08:18 PM jaxdream Maybe one could get some stainless lines made up f... Jul 22 2011, 05:02 PM jimkelly curious?
if one were to use a megajolt jr with ed... Jul 22 2011, 08:28 PM Prospectfarms
curious?
if one were to use a megajolt jr with e... Jul 22 2011, 09:27 PM jcd914
[quote name='jimkelly' post='1513355' date='Jul 2... Jul 23 2011, 12:15 AM Prospectfarms :confused:
I've followed this thread hoping ... Jul 22 2011, 09:16 PM jcd914
:confused:
I've followed this thread hoping... Jul 23 2011, 12:12 AM Prospectfarms jcd914 wrote: "I put a 1.7L long block in a 7... Jul 23 2011, 03:12 PM rohar
...
I don't know where a stash of late 70... Sep 2 2011, 10:30 PM jaxdream This mod would be a great alternative to buying a ... Jul 23 2011, 07:27 AM nein14 I can speak of it's reliability and performanc... Jul 27 2011, 10:45 AM dlee6204 A little update on this….
The car is running gr... Aug 2 2011, 11:09 PM jaxdream Great :Qarl: , I was wanting to see an update on ... Aug 3 2011, 08:30 AM pete-stevers great thread!! Sep 2 2011, 09:31 PM rohar After sleeping on it, I could be convinced to go o... Sep 3 2011, 12:20 PM Dr Evil Zach, for you I would gladly assemble a MSII for f... Sep 3 2011, 07:24 PM HAM Inc As for what happens with a radical cam with the CI... Sep 4 2011, 09:34 PM dlee6204 Small Update:
I've been driving the car alo... Sep 11 2011, 07:15 PM jaxdream Most Excellllent :Qarl: :Qarl: !!!... Sep 11 2011, 10:38 PM SirAndy Most Excellllent :Qarl: :Qarl: !!!... Sep 11 2011, 10:59 PM Vacca Rabite That GREAT!
Zach Sep 12 2011, 05:11 AM dlee6204 So I thought I would give one last quick update...... Nov 17 2011, 05:55 PM Dr Evil How cold? The cold start injector does not fire un... Nov 17 2011, 07:12 PM 76-914 Doug, what do you think is a fair price for this s... Nov 17 2011, 07:57 PM dlee6204
I know the cold start injector fires around 32 ... Nov 17 2011, 08:27 PM dlee6204
I would say you could get most of the components... Nov 17 2011, 08:33 PM pete-stevers i hope to build out my next 914 with a cis 1.7...r... Nov 17 2011, 08:34 PM Dion Doug,
Nice build. I have the CIS on my 2.0. It ... Nov 18 2011, 10:56 AM trojanhorsepower Hey Doug,
Looks good.
Glad you got it worked out... Nov 19 2011, 05:53 PM Jeffs9146
I used the Volvo box in my 3.0L 6 conversion and... Nov 19 2011, 06:24 PM nein14
I used the Volvo box in my 3.0L 6 conversion an... Nov 20 2011, 07:51 AM Kraftwerk Dion,
I like that set up, and a very clean ins... Nov 19 2011, 07:33 PM type47 So, how did you guys transition from the boot on t... Sep 16 2013, 02:25 PM dlee6204 I ended up switching to a 2.0L intake and Throttle... Sep 16 2013, 02:35 PM dlee6204 RE: Finally driving again! Sep 16 2013, 02:41 PM type47 That's beautiful! I have a plastic "S... Sep 16 2013, 02:50 PM Dion Nice work Jim,
My set up is using PVC pipe ... Sep 16 2013, 08:38 PM type47 Thanks for the pix, Dion. I asked this ? before; d... Sep 17 2013, 06:37 AM 914dave
Thanks for the pix, Dion. I asked this ? before; ... Sep 17 2013, 01:39 PM type47
I like your washer idea. That'll work just fi... Sep 17 2013, 03:36 PM rhodyguy will second generation jetta etc, cis work as well... Sep 17 2013, 06:48 AM Dion Hey Jim,
Glad Dave responded to your question. D... Sep 17 2013, 04:13 PM type47 Found an even better way to mount the injectors. 1... Sep 24 2013, 06:47 PM 914dave
Found an even better way to mount the injectors. ... Sep 25 2013, 04:12 AM jaxdream This has been a great thread to follow . I have a ... Sep 24 2013, 09:56 PM type47
I have a question about the injector retention m... Sep 25 2013, 05:52 AM jaxdream Thanks Jim , that was a great clarification , ment... Sep 25 2013, 08:25 AM type47 Progress is on schedule to try to fire this thing ... Oct 2 2013, 04:24 PM dlee6204 You shouldn't need an accumulator. I don... Oct 2 2013, 05:15 PM type47 :D
http://www.youtube.com/watch?v=gRLyDnp7G_0 Oct 13 2013, 07:01 AM jimkelly stainless steel braided fuel lines of CIS is way c... Oct 13 2013, 07:53 AM Kraftwerk Jim,
enjoyed that film and the narration... Oct 13 2013, 11:06 PM |
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