Type IV rebuild / refresh thread. Nothing ground breaking., Changing cam in low mileage rebuit 1.8, making it a little hotter! Oh yea! Options

[Mueller]

I popped the heads off in order to remove the broken exhaust studs (one per cylinder)

(I wrote broken head studs....I meant exhaust studs)

Stock camshaft has some strange wear patterns on it which might be part of the previous owner problems with the motor.


Cam will be a 9600 grind from Rabys old store

Intake planned is stock L-Jet, however I can be swayed to install Megasquirt (plenum or ITB) since I already have the Megasquirt.

Exhaust is older European Racing Header.

[McMark]

The cam assembly lube sticks around for awhile. And if you run closed loop and autotune you can get it to rev to 2000-3000 pretty easily and be sure you're not flooding the motor.

With no load on the engine, your mixture and timing isn't nearly as critical. So you run the engine, rev it up, keep an eye on the mixture, but keep it running/rev'd until the cam break in is over. Then move your attention to tuning.

Also, this is the part where I praise the gospel of dyno tuning. Pay the money. Get it done first, not last. It's worth every penny.