# doing the E pistons in the DE, Fuel management?

**URL:** <https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696>\
**Category:** SON240sx Automotive\
**Created:** [August 4, 2005, 8:48am UTC](https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696 "2005-08-04T08:48:31Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Jim1234664](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jim1234664/32/7438_2.png) [@Jim1234664](https://forums.speedlife.net/u/Jim1234664)\
**Post date:** [August 4, 2005, 8:48am UTC](https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696/1 "2005-08-04T08:48:31Z")

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ok, so im doing the Ka24E pistons into the De motor, im aware that i will need a walbro and some sort of fpr or piggyback fuel controller but im not sure what to buy?? SAFC? can anyone shed some light on this for me? thanks, jim

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**Author:** ![\_M\_aurice](https://avatars.discourse-cdn.com/v4/letter/_/c5a1d2/32.png) [@\_M\_aurice](https://forums.speedlife.net/u/_M_aurice)\
**Post date:** [August 4, 2005, 3:08pm UTC](https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696/2 "2005-08-04T15:08:43Z")

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You don’t _need_ a Walbro… You don’t really need any other FRP either…

All you need is what you know about the internals, and an SAFC. The OE bits will run it fine, but it gets lean in the high end.

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**Author:** ![Jim1234664](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jim1234664/32/7438_2.png) [@Jim1234664](https://forums.speedlife.net/u/Jim1234664)\
**Post date:** [August 4, 2005, 4:58pm UTC](https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696/3 "2005-08-04T16:58:18Z")

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im not too keen on fuel control, but basicly, im wondering how the stock ecu would compensate for the higher compression? thanks for your help, jim

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**Author:** ![syd\_mysta](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/syd_mysta/32/5488_2.png) [@syd\_mysta](https://forums.speedlife.net/u/syd_mysta)\
**Post date:** [August 4, 2005, 5:52pm UTC](https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696/4 "2005-08-04T17:52:38Z")

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With a higher octane gas.

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**Author:** ![drunkonmunky](https://avatars.discourse-cdn.com/v4/letter/d/f19dbf/32.png) [@drunkonmunky](https://forums.speedlife.net/u/drunkonmunky)\
**Post date:** [August 6, 2005, 4:09pm UTC](https://forums.speedlife.net/t/doing-the-e-pistons-in-the-de-fuel-management/87696/5 "2005-08-06T16:09:53Z")

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hm… what are you increasing the compression to? 10:7:1 ??  
you don’t need a walboro  
the existing pump will work fine  
you just need to tune via safc or other software