Originally Posted by Grumpy2
Originally Posted by sospan
Grumpy, I will search my records for the one I bought. You could also measure your current paper one and search the K&N website for their similar sized one.
When researching airflow I read Graham Bell’s book where he quotes tests on airflow and performance differences for different filters/ air supply enhancements. No HUGE improvements but cumulative benefits making up the differences he measured.
Some interesting results.


Thanks for that. I’m thinking about replacing the entire canister so maybe I just need to measure the flange? Read about some possible fuelling issues? Runs lean?


The K&N filter I currently use with my modified intake is F028e4 (came with different rubber flanges)
The K&N filter I used in the original trumpet was A053a8

Hope that helps.

Last edited by britmog; 20/07/20 03:05 PM.

Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)