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Thanks for the valuable replies. I suspected there was not much difference between the two. I have an old Impco LPG service book that indicates the Impco mixers can be either side of the turbo and this intended installation will be turbo draw through the mixer so mixer won't see the boost pressure. ...

I intend a turbo conversion using Impco gear and note a a 5 psi rating for turbo use. How much can this be increased above the 5 psi ? My turbo is set at factory 6psi and think surely this 5 psi has been successfully pushed beyond 5psi safely and reliably.


thanks

I have been told that I can use either two J's or an L Impco converter for my Subaru 1800 cc turbo. Is there any low rev differences between the two options ? I only intend to keep with the factory 6 psi boost (yeah right!) and feel that no more than 5500 rpm will be seen. Intend to use Impco 125 mi...

I know J converters are the older and Cobra the newer but what is the difference ? I cannot tell by the specs on the data sheets available. I ask as I am planning a conversion on a Subaru EA82 factory turbo efi to straight gas. I have been told to use Impco 125 mixer between air filter and turbo and...

g'day all, I am planning my next gas conversion on a 1987 Subaru sedan, 4x4 auto, 1.8 litre OHC efi turbo. Intention is to use the trusty old style Impco components in the sequence known as 'draw thru' air filter>>mixer>>turbo>>throttle body>>inlet manifold in the lpg dedicated form my gas guru tell...