Alex (@ALVO360) wrote: »
I really like the 122s coupe(?). Are there many around?
VolDan (@VolDan) wrote: »
Is that the one from IPD?
ramrod (@ramrod) wrote: »
What engine is that?
Not bad, what is the compression ratio you are going with on the head and the squish volume? On my pushrod redblock builds I aim for 0.035' , makes it less likely to ping.
What cam will you be running?
The compression ratio and squish is yet to be measured. Squish will be pretty easy to measure, I think/hope. Hopefully it comes out ok. The machine ship was reluctant to assemble to check. I have thought about custom head gasket too. Measuring the capacity of the chamber might be a bit more of a challenge. Off to ebay to see how much a pippet (I think that's what I need) is. (edit: pippette is what I was thinking of, may be able to use a syringe to get close)
The cam is a K reproduction from CVI, says made in usa on it.
I plan on rebuilding a second head at a later date. I have a mate that will port it. Prob don't need a better cam till that happens.
I live in the city so I kinda want to stick with the SUs.
You may find the K requires a lot of rpm to deliver (that is if you've not had experience with the K). The D with an appropriate 123 programmable electronic ignition will deliver mid range power and torque.
K and D cams for a B20 are very similar.
The K was used in B20E engines. I had a K cam in my 144 years ago, and it was very good for a daily driver - there was good idle, and it wasn't a pig below 2200 RPM, like the later (bigger) cam in that car was.
I run an aggressive cam on my 122 b20 compared to stock, and it is no harder to drive than a modern 16v s40 Volvo, I'd even say it's equal. So sure it doesn't have all it's torque at 1500rpm and you can't bog it down, but you shouldn't anyway!