Type 4 rebuild questions Options

[mepstein]

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.

[mepstein]

I already have 94mm Mahle P&C's, 2.0 crank and a FI cam kit. I'm wondering if any of those things will make a difference if I rebuild the engine. If it's little to none, or not a combo that will work, I won't bother. If I could get another 15hp, well that's a 20% increase on that engine so It would be worth it to me.

I have a 250lb weight reduction planned (on paper) so a little boost with a much lighter car would make it fun.

[rgalla9146]

I already have 94mm Mahle P&C's, 2.0 crank and a FI cam kit. I'm wondering if any of those things will make a difference if I rebuild the engine. If it's little to none, or not a combo that will work, I won't bother. If I could get another 15hp, well that's a 20% increase on that engine so It would be worth it to me.

I have a 250lb weight reduction planned (on paper) so a little boost with a much lighter car would make it fun.

What year chassis are you using ?
Where will the -250 lb come from ? (IMG:style_emoticons/default/idea.gif)

[mepstein]

I already have 94mm Mahle P&C's, 2.0 crank and a FI cam kit. I'm wondering if any of those things will make a difference if I rebuild the engine. If it's little to none, or not a combo that will work, I won't bother. If I could get another 15hp, well that's a 20% increase on that engine so It would be worth it to me.

I have a 250lb weight reduction planned (on paper) so a little boost with a much lighter car would make it fun.

What year chassis are you using ?
Where will the -250 lb come from ? (IMG:style_emoticons/default/idea.gif)

A ‘71

Here are some of the things I came up with to remove 250-300 lbs. not all of the items are practical, reasonable or cost effective but it was just spitballing while waiting on a flight home. A 300lb / 15% weight reduction would make a pretty good difference in acceleration, braking and handling without changing the brakes, engine or suspension.

10 - Firewall pad
10 - floor tar
60 - lids
10 - engine lid
5 - rockers
20 - glass bumpers
20 - targa top
5 - carpet
15 - exhaust
10 - Backpad
20 - air control
5 - door hardware
185
10 - Seat sliders
5 - interior padding
20 - headlights
10 - steel crossbar
10 - Heat flappers & lever
30 - battery and
5 - battery tray
265
20- Headers

310

Additional items-
Pedal board
Targa latches
Vent window & trim
Shortened sub dash
Sun visors
Glove box & ashtray
Trunk locks F & R
Glove box lock
Windshield wipers
Windshield washer
Trunk heat shield ?
Brake caliper shields
Radio & speakers
Engine lid latch & cable
Front trunk latch & cable
Front carpet board
Spare tire
Center tunnel covers
Shift knob
Antenna

[rgalla9146]

I already have 94mm Mahle P&C's, 2.0 crank and a FI cam kit. I'm wondering if any of those things will make a difference if I rebuild the engine. If it's little to none, or not a combo that will work, I won't bother. If I could get another 15hp, well that's a 20% increase on that engine so It would be worth it to me.

I have a 250lb weight reduction planned (on paper) so a little boost with a much lighter car would make it fun.

What year chassis are you using ?
Where will the -250 lb come from ? (IMG:style_emoticons/default/idea.gif)

A ‘71

Here are some of the things I came up with to remove 250-300 lbs. not all of the items are practical, reasonable or cost effective but it was just spitballing while waiting on a flight home. A 300lb / 15% weight reduction would make a pretty good difference in acceleration, braking and handling without changing the brakes, engine or suspension.

10 - Firewall pad
10 - floor tar
60 - lids
10 - engine lid
5 - rockers
20 - glass bumpers
20 - targa top
5 - carpet
15 - exhaust
10 - Backpad
20 - air control
5 - door hardware
185
10 - Seat sliders
5 - interior padding
20 - headlights
10 - steel crossbar
10 - Heat flappers & lever
30 - battery and
5 - battery tray
265
20- Headers

310

Additional items-
Pedal board
Targa latches
Vent window & trim
Shortened sub dash
Sun visors
Glove box & ashtray
Trunk locks F & R
Glove box lock
Windshield wipers
Windshield washer
Trunk heat shield ?
Brake caliper shields
Radio & speakers
Engine lid latch & cable
Front trunk latch & cable
Front carpet board
Spare tire
Center tunnel covers
Shift knob
Antenna

Yeah, that'll do it.