 2056 and stock djet fi, worth the headache to use stock djet fi with 2056 build?? |
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| funk |
 Nov 14 2014, 01:05 AM
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#1
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Member  Group: Members Posts: 100 Joined: 23-June 14 From: sandpoint idaho Member No.: 17,531 Region Association: Pacific Northwest  |
I am trying to get all info if its worth the headache to use a stock fi with 2056?? is it simple to make the tuning adjustments and parts changes and who is the top information man on this subject??from some of the threads people seem to think stick with all stock if going stock fi??I'd like the boost in hp with the 2056 if I can get the stock fi to work properly on the other hand id rather stick with the 1971 stock if there is problems linked with the fi when using larger p and c's ?? I know there are quite a few threads but none of them have been that specific on who works on these set ups mostly do it your selfers doing trial and error with this?? why can't I just send my cpu to a guy and he just tune it specifically to my engine cc??
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Replies(1 - 13)
| Jesco Reient |
Nov 14 2014, 02:01 AM
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#2
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Member Group: Members Posts: 135 Joined: 18-July 12 From: Western Washington Member No.: 14,690 Region Association: Pacific Northwest |
QUOTE(funk @ Nov 13 2014, 11:05 PM)  I am trying to get all info if its worth the headache to use a stock fi with 2056?? is it simple to make the tuning adjustments and parts changes and who is the top information man on this subject??from some of the threads people seem to think stick with all stock if going stock fi??I'd like the boost in hp with the 2056 if I can get the stock fi to work properly on the other hand id rather stick with the 1971 stock if there is problems linked with the fi when using larger p and c's ?? I know there are quite a few threads but none of them have been that specific on who works on these set ups mostly do it your selfers doing trial and error with this?? why can't I just send my cpu to a guy and he just tune it specifically to my engine cc?? My 2056 Used the Raby 9590 Camshaft, I kept the stock D-Jet and could still stand outside the car and start the engine by just turning the key, and let it idle. yes, I had a couple of issues with the D-Jet but only because of parts that were not ready to be happy, stock D-Jet 2056 with the 9590 cam ran great, pulled to 6,000 RPM idled well. But the FI must be in top condition to work right on anything. Go through the P.B. Anders rennlist site. John |
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| Jesco Reient |
Nov 14 2014, 02:01 AM
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#3
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Member Group: Members Posts: 135 Joined: 18-July 12 From: Western Washington Member No.: 14,690 Region Association: Pacific Northwest |
QUOTE(funk @ Nov 13 2014, 11:05 PM) I am trying to get all info if its worth the headache to use a stock fi with 2056?? is it simple to make the tuning adjustments and parts changes and who is the top information man on this subject??from some of the threads people seem to think stick with all stock if going stock fi??I'd like the boost in hp with the 2056 if I can get the stock fi to work properly on the other hand id rather stick with the 1971 stock if there is problems linked with the fi when using larger p and c's ?? I know there are quite a few threads but none of them have been that specific on who works on these set ups mostly do it your selfers doing trial and error with this?? why can't I just send my cpu to a guy and he just tune it specifically to my engine cc?? OH! and have fun! |
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| Spoke |
Nov 14 2014, 06:44 AM
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#4
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Jerry Group: Members Posts: 7,158 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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| 914Sixer |
Nov 14 2014, 06:44 AM
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#5
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914 Guru Group: Members Posts: 9,123 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Use all new parts and MOST of all get new wiring harnesses. The harnesses are old and brittle.
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| StratPlayer |
Nov 14 2014, 07:25 AM
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#6
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StratPlayer Group: Members Posts: 3,325 Joined: 27-December 02 From: SLC, Utah Member No.: 27 Region Association: Rocky Mountains 
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Been running a 2056 on a stock 76 D-jet setup for about 4 years now. Car runs great not using a raby cam set up, went with a webcam an lifters. No issues.
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| Bleyseng |
Nov 14 2014, 09:34 AM
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#7
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
I have been running a 2056 w/Raby cam and Djet since about 2004 with no problems and lots of smiles. MPS has to be recalibrated.
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| Jake Raby |
Nov 14 2014, 10:10 AM
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#8
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Glad to see so many smiles from my developments in this thread :-)
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| JamesM |
Nov 14 2014, 02:14 PM
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#9
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Advanced Member Group: Members Posts: 2,082 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
QUOTE(funk @ Nov 13 2014, 11:05 PM) why can't I just send my cpu to a guy and he just tune it specifically to my engine cc?? Most would consider the ECU not a tunable component with D-Jet, given it is an analog system. Adjustments are going to be mainly with the MPS and or fuel pressure. While someone could probably tweak an MPS to be close if they knew your exact configuration, its an open loop system and there are always minor variations, so dialing it in once with everything in the car is going to be your best bet. If you are trying to say with D-jet anyways... I prefer to go digital and swap the ECU for Megasquirt |
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| Jesco Reient |
Nov 17 2014, 10:03 PM
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#10
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Member Group: Members Posts: 135 Joined: 18-July 12 From: Western Washington Member No.: 14,690 Region Association: Pacific Northwest |
QUOTE(Jake Raby @ Nov 14 2014, 08:10 AM) Glad to see so many smiles from my developments in this thread :-) I had Len Hoffman do the head work, I used all of your valve train components, followed your advice to the letter on Valve train geometry and had zero mechanical issues. Did the line boring myself with my new design tooling. It seems I'm doing a lot of Type IV line bore work now. Thanks for what you've done. John |
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| worn |
Nov 18 2014, 01:25 AM
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#11
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,470 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(funk @ Nov 13 2014, 11:05 PM) I am trying to get all info if its worth the headache to use a stock fi with 2056?? is it simple to make the tuning adjustments and parts changes and who is the top information man on this subject??from some of the threads people seem to think stick with all stock if going stock fi??I'd like the boost in hp with the 2056 if I can get the stock fi to work properly on the other hand id rather stick with the 1971 stock if there is problems linked with the fi when using larger p and c's ?? I know there are quite a few threads but none of them have been that specific on who works on these set ups mostly do it your selfers doing trial and error with this?? why can't I just send my cpu to a guy and he just tune it specifically to my engine cc?? I had succes after tuning the MPS. I suspect it will be easiest with a dead stock cam. I doubt that the modest increase in engine size makes much difference. The cam and compression can though. |
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| worn |
Nov 18 2014, 01:28 AM
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#12
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,470 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(Jesco Reient @ Nov 14 2014, 12:01 AM) Go through the P.B. Anders rennlist site. John (IMG:style_emoticons/default/agree.gif) |
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| funk |
Nov 20 2014, 02:53 AM
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#13
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Member Group: Members Posts: 100 Joined: 23-June 14 From: sandpoint idaho Member No.: 17,531 Region Association: Pacific Northwest |
QUOTE(worn @ Nov 17 2014, 11:25 PM) QUOTE(funk @ Nov 13 2014, 11:05 PM) I am trying to get all info if its worth the headache to use a stock fi with 2056?? is it simple to make the tuning adjustments and parts changes and who is the top information man on this subject??from some of the threads people seem to think stick with all stock if going stock fi??I'd like the boost in hp with the 2056 if I can get the stock fi to work properly on the other hand id rather stick with the 1971 stock if there is problems linked with the fi when using larger p and c's ?? I know there are quite a few threads but none of them have been that specific on who works on these set ups mostly do it your selfers doing trial and error with this?? why can't I just send my cpu to a guy and he just tune it specifically to my engine cc?? I had succes after tuning the MPS. I suspect it will be easiest with a dead stock cam. I doubt that the modest increase in engine size makes much difference. The cam and compression can though. yet does the cam give a noticeable increase in torque and hp?? |
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| Bleyseng |
Nov 20 2014, 09:06 AM
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#14
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
The cam gives the most increase of hp/torque as the bump in CC size is minor. CR also has a big impact as I am running 9 to 1 CR along with the cam change to a Raby cam.
Yes, you have to tune the MPS! |
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