Mainly for interest to the 2nd gen crowd, but engine related
http://www.twminduction.com/ThrottleBody/ThrottleBody-FR.html
Has a link to the recent article which compared carbs to EFI for a ported 6-port 13B. Although I don\'t agree with everything said there, it makes for very interesting reading, especially when you see that you can get a very respectable 226HP out the old 6-ports with the right intake and EFI on it.
The power band is pretty flat with over 220HP from 7200-8500RPM.
There are still some things that are niggling me on this, but I need to do some more thinking to try and work out what\'s going on., but at the least it\'ll be worth getting that 6-port off alastair\'s car rebuilt and shoved in something mk1.
Bill
Hi Bill,
The 6 port engines are very good, I think though that the original RX-4 13B engines are brilliant also.
You can easily achieve 220hp out of a mild port with a Webber, or slightly more with fuel injection.
In a light car they are very quick indeed.
Natch. What do you think is dry sumped ported and ready to go in the westfield as soon as I get the garage straight :-) I hope to hit 230 once I have some exhaust issues sorted out, maybe a little more. A lot of power is lost in the exhaust sleeves. I want it back.
However people have said for years that you can\'t get good power out the 6-port. Not true and here\'s proof. Dave Lemon of mazdatrix has a great looking racing convertable which he is getting silly HP at 10K with ceramic seals.