Turbo cam???

[JMT240KGTR]

Hi fellas,

I've got a dilemma with an ex-turbo'd L28 engine.

Engine was a fuel injected turbo, now converted to dual SU carb set up. Yes I know you may ask why the conversion, the answer is $$$ for the time being, turbo is put aside until more $$$ come through, a while yet!

All bearings, rings, seals have been replaced and well run in, but I'm finding it a little short of power on stand start acceleration.

The car pulls great once above 70kph (45mph?) in top (4th) gear 2500rpm, but it's working through the gears from a stand start that I feel is a little slow. Overtaking and accelerating on freeways is excellent.

The specs are L28 N42, elec dizzy, 240z carbs, extractors mated to a 240K box (C110) and a 3.54 ratio diff. Comp ratio is at the 8.3:1 mark.

My question is, are turbo cams profiled differently than N/A engines?

As far as I'm concerned the engine is spot on, but I believe the cam is letting me down.

Any experience out there?

Help from some Guru's appreciated, cheers!

[ZmeFly]

that with the low compression will give you some of your acceleration problems as well.

if you ar going back to turbo then i wouldnt worry about it. if you plan to stay the n/a route then the first thing i would do is buy me some nice flat top pistons to up that compression