Thread: Getting the most out of a 2.25 petrol

Originally Posted by hodgoes2001

I have a rebuilt zenith carby, electronic ignition, 9mm ignition leads and a high performance coil pack

so i was thinking of shaving the head to 9:1 CPR...

What else should i be looking at?

You have made a good start but have you considered the 7:1 head and a supercharger?

Megajolt ignition system gets rid of the variables of a distributor and if you fitted fuel injectors you could run a Megasuirt fuel/ignition system.

I suppose it depends on what you want to spend on it, although most parts needed can be sourced from an old car or from the wreckers,

Cheers Charlie

Originally Posted by chazza

You have made a good start but have you considered the 7:1 head and a supercharger?

Megajolt ignition system gets rid of the variables of a distributor and if you fitted fuel injectors you could run a Megasuirt fuel/ignition system.

I suppose it depends on what you want to spend on it, although most parts needed can be sourced from an old car or from the wreckers,

Cheers Charlie

good in theory....

but i am trying to keep it simple....

good old fashion tuning rather then a conversion...

also i don't have a 7:1 head... on any of the 3 series 3 engines i have...

Originally Posted by mick88

What model weber is on your vehicle.
It will have a couple of numbers stamped on the side at the base, looking something like this! **/**

Cheers, Mick.

My Dad's 88 had a 32/34 DMTL Webber as fitted to 2.5 Petrols. (along with 2.5P Manifolds).

A quick google gives these PNs

Weber 32/34 DMTL 6/101 Weber part no: 2267007301
Weber 32/34 DMTL 7/101 2267013700

The vehicle is now owned by Killer if you want any further detail.

Originally Posted by mick88

What model weber is on your vehicle.
It will have a couple of numbers stamped on the side at the base, looking something like this! **/**

Cheers, Mick.

Not sure I'll have a look, I finally took the plunge and bought a timing light. Its worth it, my IIA was so far advanced that I was amazed that it was running. Decent boost in power and economy should improve, I also had a play with the fuel mixture and put in the proper condenser and with all this it's made it a lot more useable.