2 ltr typ4

[judgie]

right then iam building a 1303 for hill climbing and sprints plus a bit of track day action.engine must stay under 2ltr so i dont go into the above 2ltr group.
so stock 71 mm crank,square port heads,40 dcnf's, 914 flywheel
this is what i have so far,need help in chooseing cam,valve size,pistons etc and should i go dry sump?
cheers rob

[kdanie]

Here's what I would do....

44x38 valves
WebCam 86a (may differ depending on your needs, depenging on track/course, min. rpm, max. rpm and some other factors)
Carbs-you will need at least 34mm vents to make good top end power
Install good rods with strong bolts so you can rev it safely
Get the best balance job you can.
Light weight valve train parts are always a good investment in a competition engine.
The 914 flywheel will not work unless you are installing a 901 5 speed. Use a 210/215mm bus flywheel for a type 1 trans.
Dry sump-COOL but not necessary. Lots of 914s race without drysumps, the "tuna can" sump extension from Weltmeister seems to help a lot.
I would use good forged flat top pistons-94.5mm dia. so you can maximize your displacement for your class=1992cc. no sense giving away HP and torque to your competitors...
I would set the compression to 9.5-1 or so, more if you can run race gas
Exhaust header is going to make or break your combination. BAS is good, Tangerine is better. Both are expensive.... I built my own to match my engine and use.
ken

[judgie]

cheers for that mate,about the same spec as stateside tuning gave me but they said go dry sump before any thing alse.
any body else got any ideas?
kadine said
The 914 flywheel will not work unless you are installing a 901 5 speed. Use a 210/215mm bus flywheel for a type 1 trans.
iam running a 901 box.
cheers rob