Joined Nov 2001
17K Posts | 774+
Ely, England
dyno run
i'm getting ready to try several things on the dyno.
it's unfortunate that the 400 is no longer made but it's pretty close to the 450 and i guess we can agree that it's the smaller bikes that want the extra ooommpphh!
so this is what i'm going to try
1) if there is a difference in the 650 headers and i can borrow/buy a pair
2) lineweaver jetting kit
3) 41mm carb borrowed from scoot
i now have the lineweaver LX2 cam fitted and it is more powerful. therefore i won't have the time to swop cams and time them up. it would be good but the gear in the sidecover would need changing as well.
4) i have ported a small valve head on the exhaust side only. cutting down a pair of 30mm exhaust valves from a BV head to 29mm and all the necassary work with guides and seats. this will be swopped and take considerable time
5) i have the offer of a pipe from chris ginn
6) i have the offer of an akropovic tailpipe from stickywicket
7) pokenhood quotes a 2hp difference using the brisk spark plug so we will try one of those!
8) ignition advance changes
i would like to get my hands on any exhaust system that anyone cares to lend for testing. i will be asking the shops as well and would appreciate any help especially from the UK boys in sourcing stuff.
i deliberately haven't touched the inlet ports, valves and guides at this time as i want to check clear differences.
another thing i'd love to check is the '08' or standard 650 cam from these last 3 years. a G2 tornado cam is another!
all results will be posted here and all questions answered honestly except when i lie. when i lie i will always wink so that you know that i'm lying-ok :wink:
i'm hoping that i'll be in and out in about 6 hours. it ain't cheap so i believe that json is soon to put up a competition offer and i hope to get some help from that.
if anyone would be prepared to post me their 'zorst i will post it back and all in good nick (condition to you!).
regards
Taffy
i'm getting ready to try several things on the dyno.
it's unfortunate that the 400 is no longer made but it's pretty close to the 450 and i guess we can agree that it's the smaller bikes that want the extra ooommpphh!
so this is what i'm going to try
1) if there is a difference in the 650 headers and i can borrow/buy a pair
2) lineweaver jetting kit
3) 41mm carb borrowed from scoot
i now have the lineweaver LX2 cam fitted and it is more powerful. therefore i won't have the time to swop cams and time them up. it would be good but the gear in the sidecover would need changing as well.
4) i have ported a small valve head on the exhaust side only. cutting down a pair of 30mm exhaust valves from a BV head to 29mm and all the necassary work with guides and seats. this will be swopped and take considerable time
5) i have the offer of a pipe from chris ginn
6) i have the offer of an akropovic tailpipe from stickywicket
7) pokenhood quotes a 2hp difference using the brisk spark plug so we will try one of those!
8) ignition advance changes
i would like to get my hands on any exhaust system that anyone cares to lend for testing. i will be asking the shops as well and would appreciate any help especially from the UK boys in sourcing stuff.
i deliberately haven't touched the inlet ports, valves and guides at this time as i want to check clear differences.
another thing i'd love to check is the '08' or standard 650 cam from these last 3 years. a G2 tornado cam is another!
all results will be posted here and all questions answered honestly except when i lie. when i lie i will always wink so that you know that i'm lying-ok :wink:
i'm hoping that i'll be in and out in about 6 hours. it ain't cheap so i believe that json is soon to put up a competition offer and i hope to get some help from that.
if anyone would be prepared to post me their 'zorst i will post it back and all in good nick (condition to you!).
regards
Taffy
