what have you done with stock FI and performance mods?, quest for a killer D-jet 2056cc motor |
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what have you done with stock FI and performance mods?, quest for a killer D-jet 2056cc motor |
realred914 |
Nov 13 2010, 08:08 PM
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#1
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
what are the trick mods for performance power when building a D-jet motor . it is a tired 2 liter that will be getting a big bore 2056 piston kit.
what are recommendations for valves, porting compresion , etc.... will be a driver car 91 octane gas, , have SS heater exchanger, and I do want heat. what can be done during rebuild to beef up the power???? |
HAM Inc |
Nov 18 2010, 04:38 PM
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#2
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Senior Member Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None |
Here's the info you need for the internals from a DIYer who has been down this road.
QUOTE My recommendation is Raby cam and lifters-(9950 or ?) Porsche swivel feet CR 9 to 1 tight Deck ht 0.40 42x36 valves w/HD springs Raby new 914 2.0l heads balanced everything Here's the info from a pro with a proven track record for the internals. QUOTE 2056cc -KB 96mm P&C -RAT 9560 cam -.035 deck height - LE 180 CNC heads -8.8:1 CR -Stock D jet with MPS tuning -Tangerine Racing header in 1-5/8" As for the D-Jet tuning there is a lot of info on this forum and some in this thread. As long as you don't try to re-invent the wheel you won't have any trouble getting what you want. As a cautionary note if your budget for the internals is less than the good parts cost, especially the heads, save your money until you can do it right. These old heads are not very forgiving, and they are critical to good, trouble free performance! Same goes for the cam and lifters. Aside from possibly getting the wrong lobe specs (despite what the card says), there are a lot of cams out there ground on the wrong blanks, improperly ground and mated to lifters that are not compatible. Buy the good stuff once and be done with it. And don't forget to have your case decked by a competent machinist familiar with these engines. I assure you it needs it. |
realred914 |
Nov 18 2010, 06:24 PM
Post
#3
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
Here's the info you need for the internals from a DIYer who has been down this road. QUOTE My recommendation is Raby cam and lifters-(9950 or ?) Porsche swivel feet CR 9 to 1 tight Deck ht 0.40 42x36 valves w/HD springs Raby new 914 2.0l heads balanced everything Here's the info from a pro with a proven track record for the internals. QUOTE 2056cc -KB 96mm P&C -RAT 9560 cam -.035 deck height - LE 180 CNC heads -8.8:1 CR -Stock D jet with MPS tuning -Tangerine Racing header in 1-5/8" As for the D-Jet tuning there is a lot of info on this forum and some in this thread. As long as you don't try to re-invent the wheel you won't have any trouble getting what you want. As a cautionary note if your budget for the internals is less than the good parts cost, especially the heads, save your money until you can do it right. These old heads are not very forgiving, and they are critical to good, trouble free performance! Same goes for the cam and lifters. Aside from possibly getting the wrong lobe specs (despite what the card says), there are a lot of cams out there ground on the wrong blanks, improperly ground and mated to lifters that are not compatible. Buy the good stuff once and be done with it. And don't forget to have your case decked by a competent machinist familiar with these engines. I assure you it needs it. good points, I believe deck of case is being done but will confirm it. looking at a full flow oil system. does anyone make a fitting to replace the the oil filter flange? I will be doing a remote filter and cooler (retian stock cooler also) it be nice to elimiate the oil filter flange arm thingy with block off plate with ports for supply/return hoses to the remote. |
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