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nixing the hitachi and going to a dual SU, need advice
Posted 09 January 2005 - 07:01 PM
Thanks in advance.
Posted 09 January 2005 - 08:05 PM
Good luck and keep us up to date
Posted 10 January 2005 - 01:34 PM
Has anyone hacked there manifold before? EA81 or 82? Do any of the rogue roo's have a spare manifold they would be willing to part with?
Posted 10 January 2005 - 02:46 PM
FYI, I'm guessing, but it sounds like you have HS6's. If you want to run dual carbs, these are pretty large for a < 2.0litre application. It's definately do-able, and even preferred, if you have a hot motor. It may be difficult to tune with a stock engine though. You may want to consider running only a single HS6. If you go to the later, HIF4's, they have the brass bushing already installed. In a dual application, the size of these is more appropriate for a stock 1.8 application too. HIF4's also have an attached float bowl which may prove an advantage when mounting...?
Also note that twin S.U. carbs are not the same as twin DCOE carbs. While DCOE's can be setup and almost forgotten, be prepared to continually tinker with your S.U.'s to keep them synced and running efficiently. This could prove a pain if it's your daily driver.
Some trivia: HS2, HS4, HS6, HIF4, etc are all S.U. carb models. The number in the model represents the throat size, in 1/8ths of an inch + 1.
For example: HS2: 1 + 2(1/8)=1.25" throat
HS4: 1 + 4(1/8)=1.5" throat
HS6: 1 + 6(1/8)=1.75" throat
Have fun with it!
Posted 11 January 2005 - 12:45 AM
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