Turbo DS650
#1
#2
Turbo DS650
is the 6-7 psi, boost pressure you would like to have? or are you refering to 6-7 psi of fuel pressure. The carbs on these bikes will only handle 1-1 1/2 psi of fuel pressure at idle, any more and they flood over. Under operating conditions just be sure your regulator is boost sensitive and stays about 1-1/2 psi over boost. I am going to be using a Tm 45 w/ accl pump for my set up. and it has been redesigned to be a blow through system instead of draw through.
#6
Turbo DS650
Majorecho, yes 6-7 psi of boost. Are you on a turbo setup ? i can easily regulate fuel psi to 1psi with boost sensitive reg. Is that all it takes ? How are you setting up the carb to handle the extra Air in the ratio ? Im very familiar with turbo on EFI but kind of new to carb/turbo setups. Lemme know ! Im thinking i can turbo my DS for $1k. Depending on the fuel setup. What are you going with ?
#7
Trending Topics
#8
Turbo DS650
Scooby 6-7 "only" ? How much boost will stock compression take before det ? I have a coupla big T3's and a t25 on hand. Are you trying to sell your quad ? email me if you are larryct@jps.net. What about that Jr dragster throttle body setup would that work for turbo DS ? I was just thinking 6-7 was a conservative number for stock compression, but as you know boost controllers are quite easily adjusted [img]i/expressions/face-icon-small-smile.gif[/img]
lemme know !
lemme know !
#9
Turbo DS650
Originally posted by: R_ipper_R
Scooby 6-7 "only" ? How much boost will stock compression take before det ? I have a coupla big T3's and a t25 on hand. Are you trying to sell your quad ? email me if you are larryct@jps.net. What about that Jr dragster throttle body setup would that work for turbo DS ? I was just thinking 6-7 was a conservative number for stock compression, but as you know boost controllers are quite easily adjusted [img]i/expressions/face-icon-small-smile.gif[/img]
lemme know !
Scooby 6-7 "only" ? How much boost will stock compression take before det ? I have a coupla big T3's and a t25 on hand. Are you trying to sell your quad ? email me if you are larryct@jps.net. What about that Jr dragster throttle body setup would that work for turbo DS ? I was just thinking 6-7 was a conservative number for stock compression, but as you know boost controllers are quite easily adjusted [img]i/expressions/face-icon-small-smile.gif[/img]
lemme know !
Jr dragster throttle body setup might work with turbo. Not sure how charge air temperature compensation would work, but when running alcohol, you might be able to get away with no air temp compensation since alcohol is not as sensitive to jetting as gas. An intercooler takes out the air temp fluctuation, but adds restriction and can slow boost rise due to extra volume.
Not sure what I'm going to do with the DS. Right now a few things are being worked on such as lowering center of gravity, beefing up head seal, beefing up clutch, re-programming vortex CDI, etc.
#10
Turbo DS650
I have the KMS turbo on my 400ex. I saw the DS-650 at the dunes with the same KMS turbo on it. He was running 20+ pounds of boost. They have complete engine management systems with the fuel the injection set up, and they are intercooled. I added a purging system and was running mine on Methonal. My 400ex was only set at 8 lbs of boost and I had a problem keeping the front end down (even in 5th gear). I decided to add swing arms and I plan on turning the boost up to 18lbs for my next trip to YUMA/Dunes. I am not sure what kind of HP I will get at 20+boost and Methonal. The Methonal also helps keep the engine running cooler too. Anyway you look at it, it's a nice system.