Hi,
While preparing to order the remaining parts of my RV-9 I noticed that VANS is unable to supply a finishing/firewall forward kit for a horizontal induction on an IO-320. The second issue appears to be the cold air sump option from Superior.
From what I understand I need to make a custom snorkel, combine the lower cowling from the RV6 with the upper part of the RV9 and order a custom built exhaust system (not available through VANS).
This all was a major surprise to me! My engine supplier tells me that the difference between the vertical and horizontal with cold air sump is that: . The performance and power is better and it would have a higher manifold because the ram air goes straight in. The air will also be colder according to them. As an example they gave me the extra 300: a six cylinder with a horizontal cold induction, according to them with these reasons.
Most builders that I spoke to tell me to not go into the unknown/undocumented area, especially not as a first time builder. I tend to agree on that, but …
Is there anyone that did those modification, maybe has a blog available as a reference for me? Any general advice on this topic is more than welcome!
Thank you!
While preparing to order the remaining parts of my RV-9 I noticed that VANS is unable to supply a finishing/firewall forward kit for a horizontal induction on an IO-320. The second issue appears to be the cold air sump option from Superior.
From what I understand I need to make a custom snorkel, combine the lower cowling from the RV6 with the upper part of the RV9 and order a custom built exhaust system (not available through VANS).
This all was a major surprise to me! My engine supplier tells me that the difference between the vertical and horizontal with cold air sump is that: . The performance and power is better and it would have a higher manifold because the ram air goes straight in. The air will also be colder according to them. As an example they gave me the extra 300: a six cylinder with a horizontal cold induction, according to them with these reasons.
Most builders that I spoke to tell me to not go into the unknown/undocumented area, especially not as a first time builder. I tend to agree on that, but …
Is there anyone that did those modification, maybe has a blog available as a reference for me? Any general advice on this topic is more than welcome!
Thank you!