Type 4 rebuild questions |
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Type 4 rebuild questions |
mepstein |
Nov 19 2018, 08:14 PM
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#1
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914-6 GT in waiting Group: Members Posts: 19,309 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
What can I do to rebuild my 1.7 for more HP and torque but keep the original d-jet.
piston and cylinders crank camshaft heads ? I know I can't change the cam too much but is there one that will do better and still work with d-jet. I know there is modern FI but I'm not interested. No carbs. I'm not looking for all out HP or dropping 10K on an engine kit. I just want a nice bump in power, if possible, while keeping a stock looking engine. |
cgnj |
Nov 21 2018, 09:06 PM
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#2
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Senior Member Group: Members Posts: 626 Joined: 6-March 03 From: Medford, NJ Member No.: 403 Region Association: None |
Mark,
Here is the link regarding the plenums.2270 plenum test I don't know if there is a difference in the inner diameters on 1.7 & 1.8 runners. I would use what you have., or get the flanges from the dubshop and make your own. I did cc a 1.8 plenum and a 2.1 waterboxer plenum. The difference was minimal. The bus plenum will fit a larger TB without mods. It does have to be modified to install on the engine, remove and relocate the mounting tab, because the TB is on the opposite end. I wouldn't rebuild the rods. When you add in the cost of balancing, You can get H beam rods with 2.0 journals. Much lighter and I will bet they come out of the box less then .1 gram difference. The case and heads will have to be opened up for the larger bore. You may be better served sourcing a 1.8 motor. Carlos |
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