what have you done with stock FI and performance mods?, quest for a killer D-jet 2056cc motor Options

[realred914]

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]

Here's the info you need for the internals from a DIYer who has been down this road.

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.

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.