Hey guys I am seriously looking into turboing my AC 900twin I have in my quad I use for duning/sand dragging.
I have no experience with them at all but have been talking to a gentleman that has done them and wants to help set me up.
I will do all the fabricating which is not a problem for me.
He will modifiy a unported set of stock cylinders for better turbo performance
(less blowdown)
And give me a list of all the parts and how to set them up.
We talked about no intercooler because of space and instead running a methanol injection setup.
Or probaby better yet, running alcohol(methanol) carb setup instead of gas.
Then maybe a intercooler or injection would not be needed then.
I presently run gas on this bike but my other race bike is on methanol with a lectron 50mm carb. So I am experienced with running alcohol just not in a turbo setup.
My bike presently makes 175hp at 7600rpms on premium gas.
I would like to see 250hp @ 10-12lbs of boost running race gas or Alcohol does this sound resonable?
I would also like to run factory cast pistons at this boost level. The reason for this is the bike coolant will run 175-190(coming out of the motor) while riding/racing, alcohol would cut this down allot though.
I presently have custom fit inframe style twin pipes that I would prefer to run instead of a single pipe that I would have to build for the chassis, what is the down side of running twins compared to a single pipe.
I was told that a garret 2876 or the bigger 3071 turbo is what I should run.
I run the factory 40mm rack carbs bored to 42mm now, would these be the best for this setup?
what about ignitons is there a adjustable ignition for these motors or a certain year cdi to better suit the turbo.
I have 3 cdi now 94 zr900, mountain 900 and a race curve box. The zr900 has the least amount of timing.
thank you for your thoughts and help
Dave
I have no experience with them at all but have been talking to a gentleman that has done them and wants to help set me up.
I will do all the fabricating which is not a problem for me.
He will modifiy a unported set of stock cylinders for better turbo performance
(less blowdown)
And give me a list of all the parts and how to set them up.
We talked about no intercooler because of space and instead running a methanol injection setup.
Or probaby better yet, running alcohol(methanol) carb setup instead of gas.
Then maybe a intercooler or injection would not be needed then.
I presently run gas on this bike but my other race bike is on methanol with a lectron 50mm carb. So I am experienced with running alcohol just not in a turbo setup.
My bike presently makes 175hp at 7600rpms on premium gas.
I would like to see 250hp @ 10-12lbs of boost running race gas or Alcohol does this sound resonable?
I would also like to run factory cast pistons at this boost level. The reason for this is the bike coolant will run 175-190(coming out of the motor) while riding/racing, alcohol would cut this down allot though.
I presently have custom fit inframe style twin pipes that I would prefer to run instead of a single pipe that I would have to build for the chassis, what is the down side of running twins compared to a single pipe.
I was told that a garret 2876 or the bigger 3071 turbo is what I should run.
I run the factory 40mm rack carbs bored to 42mm now, would these be the best for this setup?
what about ignitons is there a adjustable ignition for these motors or a certain year cdi to better suit the turbo.
I have 3 cdi now 94 zr900, mountain 900 and a race curve box. The zr900 has the least amount of timing.
thank you for your thoughts and help
Dave
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