# have some B18 and EF questions **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [August 13, 2007, 11:15am UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828 "2007-08-13T11:15:45Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [August 13, 2007, 11:15am UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/1 "2007-08-13T11:15:45Z")
okay here we go. -would a EG half size radiator fit in a EF? -will a B18c1 flywheel work on a B18a1 with a a1 clutch? -will a B18c1 starter work on a B16 transmission? -Also what is the compression ratio on a B18a1 and is it safe to run 12lbs of boost? ---
**Author:** ![Shrek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shrek/32/7364_2.png) [@Shrek](https://forums.speedlife.net/u/Shrek)\ **Post date:** [August 13, 2007, 11:42am UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/2 "2007-08-13T11:42:57Z")
Stock B18A1 is 9.2:1 Im sure any B-series starter will work in a B-series trans. ---
**Author:** ![layzie](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/layzie/32/7599_2.png) [@layzie](https://forums.speedlife.net/u/layzie)\ **Post date:** [August 13, 2007, 12:07pm UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/3 "2007-08-13T12:07:19Z")
yes starter will work, matter of fact i have a b18c1 starter on my s80 b16 tranny. the radiator will fit. ---
**Author:** ![justa4door](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justa4door/32/7259_2.png) [@justa4door](https://forums.speedlife.net/u/justa4door)\ **Post date:** [August 14, 2007, 3:29pm UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/4 "2007-08-14T15:29:30Z")
any b-series starter will fit even the auto ones … the rad i think should go right in if not a lil mod or two to get it to fit … flywheel i have no idea… boost you should run like 8-10 … w/ 110k on a motor … do you need a wastegate?? i have a extra ---
**Author:** ![AShort](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ashort/32/4947_2.png) [@AShort](https://forums.speedlife.net/u/AShort)\ **Post date:** [August 14, 2007, 3:50pm UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/5 "2007-08-14T15:50:21Z")
PMed ---
**Author:** ![Toda\_Party](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/toda_party/32/7354_2.png) [@Toda\_Party](https://forums.speedlife.net/u/Toda_Party)\ **Post date:** [August 15, 2007, 8:56am UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/6 "2007-08-15T08:56:00Z")
the flywheels are all the same, except type-R which is lighter, but still the same bolt pattern and shit ---
**Author:** ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)\ **Post date:** [August 15, 2007, 9:21am UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/7 "2007-08-15T09:21:12Z")
personally, i would start with the boost turned down a bit and get it running that way first. then take it for tuning and start cranking it up. ---
**Author:** ![Toda\_Party](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/toda_party/32/7354_2.png) [@Toda\_Party](https://forums.speedlife.net/u/Toda_Party)\ **Post date:** [August 15, 2007, 9:23am UTC](https://forums.speedlife.net/t/have-some-b18-and-ef-questions/33828/8 "2007-08-15T09:23:30Z")
why turn it down? just don’t beat on it before its tuned. people blow motors running in vacuum so the pressure doesn’t matter, its the tune.