TODA 4-2-1 vs Joe 4-2-1 Header Same car.

[@CL9k24a3]

294 vs 305hp in favor for Joes header. Mid dip is questionable Vtek point adjustment as that info was missing from testing. On this car shift points would be above 6200rpm so it would make more avg HP and wouldn't be affected by loss in the mid.

[@findtherightbeat]

Found your channel based on your comment on Garage 4AGE's post, I was curious since I followed Joe for some time, do you have the header that he made or did you fabricate one based on his measurements? Thanks!

[@CL9k24a3]

I wanted to make his header but was not able to replicate his header for my aplication because in order to get those measurements I would need to pull out driveshaft to install it and I was not willing to go with that design. His header is 420/170 and my is 590/130 (prime/secondary). Tbh Im really disappointed in my self because I didn't go with his design regardless of extra work that it need to be installed... Solid fab is making header based on his measurements for ep3 and it works reall good.

[@findtherightbeat]

@@CL9k24a3 Thanks! will research on Solid Fab's header. Great content on the channel by the way 👍

[@CL9k24a3]

Malkolm666 on k20 org has that header and have measured it. He say it is 420/170mm and tubes are 48mm prime with 51mm secondary diameter.

[@findtherightbeat]

@@CL9k24a3 Just curious how the midrange dip and better top end power in Joe's header compares to that of Toda's better midrange but top end dip in real world racing situations

[@CL9k24a3]

Shiftpoints would be above that dip so it would have gained hp everywhere. Also there is some speculation that dip was caused by the tuning issue. There is one ep3 with solid fab header at dyno daze. Made the most hp out of all other ep3 dynoed there with stock engine. Will link you in a moment.